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    An integrated process for xylooligosaccharide and bioethanol production from corncob.
    Bioresour Technol 2018 Feb 6;256:399-407. Epub 2018 Feb 6.
    Bioprocess Research Cluster (BRC), Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand. Electronic address:
    An integrated process for xylooligosaccharides (XOs) and bioethanol production from corncob was investigated. XOs were produced by a consecutive process of KOH treatment and hydrolysis by an in-house thermostable endo-xylanase from Streptomyces thermovulgaris. XO yields of 0. Read More

    Halophilic starch degrading bacteria isolated from Sambhar Lake, India, as potential anode catalyst in microbial fuel cell: A promising process for saline water treatment.
    Bioresour Technol 2018 Feb 10;256:391-398. Epub 2018 Feb 10.
    Environmental Biotechnology Laboratory, Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur (IIT J), Jodhpur, Rajasthan 342037, India. Electronic address:
    In this study, Microbial Fuel Cell (MFC) capable of treating saline starch water was developed. Sodium chloride (NaCl) concentrations ranging from 500 mM to 3000 mM were tested at the anode. Nitrate was used as an electron acceptor at the biocathode. Read More

    The fate of trace organic contaminants during anaerobic digestion of primary sludge: A pilot scale study.
    Bioresour Technol 2018 Feb 10;256:384-390. Epub 2018 Feb 10.
    Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo NSW 2007, Australia. Electronic address:
    A pilot-scale study was conducted to investigate the fate of trace organic contaminants (TrOCs) during anaerobic digestion of primary sludge. Of the 44 TrOCs monitored, 24 were detected in all primary sludge samples. Phase distribution of TrOCs was correlated well with their hydrophobicity (>67% mass in the solid phase when LogD > 1. Read More

    Spatial variation of electrode position in bioelectrochemical treatment system: Design consideration for azo dye remediation.
    Bioresour Technol 2018 Feb 7;256:374-383. Epub 2018 Feb 7.
    Bioengineering and Environmental Sciences Lab, EEFF Department, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India. Electronic address:
    In the present study, three bio-electrochemical treatment systems (BET) were designed with variations in cathode electrode placement [air exposed (BET1), partially submerged (BET2) and fully submerged (BET3)] to evaluate azo-dye based wastewater treatment at three dye loading concentrations (50, 250 and 500 mg L). Highest dye decolorization (94.5 ± 0. Read More

    Highly efficient nitrogen removal of a coldness-resistant and low nutrient needed bacterium, Janthinobacterium sp. M-11.
    Bioresour Technol 2018 Feb 13;256:366-373. Epub 2018 Feb 13.
    State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
    A novel heterotrophic nitrification-aerobic denitrification bacterium, identified as Janthinobacterium sp. M-11, was isolated from the Songhua River. When the initial ammonium concentration was 5 mg·L, 98% of ammonium was removed under cold condition (2 °C) with the C/N ratio of 5 at initial pH 7 and aerobic condition, which demonstrated the significant ammonium removal capacity of M-11 with low nutrient consumption at cold temperature. Read More

    Can algae-based technologies be an affordable green process for biofuel production and wastewater remediation?
    Bioresour Technol 2018 Feb 8. Epub 2018 Feb 8.
    Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia and Department of Environmental and Municipal Engineering, TianjinChengjian University, Tianjin 300384, China.
    Algae is a well-known organism that its characteristic is prominent for biofuel production and wastewater remediation. This critical review aims to present the applicability of algae with in-depth discussion regarding three key aspects: (i) characterization of algae for its applications; (ii) the technical approaches and their strengths and drawbacks; and (iii) future perspectives of algae-based technologies. The process optimization and combinations with other chemical and biological processes have generated efficiency, in which bio-oil yield is up to 41. Read More

    Recent developments of downstream processing for microbial lipids and conversion to biodiesel.
    Bioresour Technol 2018 Feb 1. Epub 2018 Feb 1.
    INRS Eau, Terre et Environnement, 490, rue de la Couronne, Québec G1K 9A9, Canada. Electronic address:
    With increasing global population and depleting resources, there is an apparent demand for radical unprecedented innovation to satisfy the basal needs of lives. Hence, non-conventional renewable energy resources like biodiesel have been worked out in past few decades. Biofuel (e. Read More

    A novel methanotrophic co-metabolic system with high soluble methane monooxygenase activity to biodegrade refractory organics in pulping wastewater.
    Bioresour Technol 2018 Feb 13;256:358-365. Epub 2018 Feb 13.
    Key Laboratory of the Three Gorges Reservoir's Eco-Environments, Chongqing University, Chongqing 400045, PR China. Electronic address:
    Pulping wastewater still contains massive refractory organics after biotreatment, with high colority, low biodegradability, and lasting biotoxicity. To eliminate refractory organics in pulping wastewater, a methanotrophic co-metabolic system in a gas cycle Sequencing Batch Biofilm Reactor (gcSBBR) seeded by soil at a ventilation opening of coal mine was quickly built on the 92nd day. The removal rate of COD, colority and TOC was 53. Read More

    Variations of floc morphology and extracellular organic matters (EOM) in relation to floc filterability under algae flocculation harvesting using polymeric titanium coagulants (PTCs).
    Bioresour Technol 2018 Feb 10;256:350-357. Epub 2018 Feb 10.
    Beijing Drainage Group Co. Ltd, Beijing 100124, China.
    The work evaluated the algae cells removal efficiency using titanium salt coagulants with different degree of polymerization (PTCs), and the algae cells aggregates and extracellular organic matter (EOM) under chemical flocculation were investigated. The results indicated that PTCs performed well in algae cells flocculation and separation. The main mechanism using PTCs of low alkalisation degree for algae flocculation was associated with charge neutralization, while adsorption bridging and sweep flocculation was mainly responsible for algae removal by PTCs of high alkalisation degree treatment. Read More

    Impacts of biochar on the environmental risk of antibiotic resistance genes and mobile genetic elements during anaerobic digestion of cattle farm wastewater.
    Bioresour Technol 2018 Feb 13;256:342-349. Epub 2018 Feb 13.
    College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China.
    Biochar has positive effects on nitrogen conservation during anaerobic digestion, but its impacts on antibiotic resistance genes (ARGs) are unclear. Therefore, the effect of biochar (0, 5, 20, and 50 g/L) on the environmental risk of ARGs during cattle manure wastewater anaerobic digestion were investigated. The results showed that 5 g/L biochar reduced the relative abundances (RAs) of 5/13 ARGs while 20 g/L biochar significantly reduced the total RAs of ARGs in the digestion products, where the RA of ISCR1 was 0. Read More

    Succession of the functional microbial communities and the metabolic functions in maize straw composting process.
    Bioresour Technol 2018 Feb 13;256:333-341. Epub 2018 Feb 13.
    Key Laboratory of Urbanization and Ecological Restoration of Shanghai, School of Ecology & Environmental Science, East China Normal University, Shanghai 200241, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China. Electronic address:
    Illumina MiSeq sequencing and phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt) were applied to study the dynamic changes and effects of microbial community structures as well as the metabolic function of bacterial community in maize straw composting process. Results showed that humic acid contents in loosely combined humus (HA1) and stably combined humus (HA2) increased after composting and Staphylococcus, Cellulosimicrobium and Ochrobactrum possibly participated in the transformation of the process. The bacterial communities differed in different stages of the composting. Read More

    Effects of hydrostatic pressure and supercritical carbon dioxide on the viability of Botryococcus braunii algae cells.
    Bioresour Technol 2018 Feb 10;256:328-332. Epub 2018 Feb 10.
    Department of Bioengineering, Faculty of Engineering, Ege University, 35100 Bornova, Izmir, Turkey. Electronic address:
    In bio-based industries, Botryococcus braunii is identified as a potential resource for production of hydrocarbons having a wide range of applications in chemical and biopolymer industries. For a sustainable production platform, the algae cultivation should be integrated with downstream processes. Ideally the algae are not harvested, but the product is isolated while cultivation and growth is continued especially if the doubling time is slow. Read More

    Improving cellulose nanofibrillation of waste wheat straw using the combined methods of prewashing, p-toluenesulfonic acid hydrolysis, disk grinding, and endoglucanase post-treatment.
    Bioresour Technol 2018 Feb 10;256:321-327. Epub 2018 Feb 10.
    Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China. Electronic address:
    Here we established a new approach for improving the cellulose nanofibrillation of high ash content waste wheat straw (WWS). The results were comprehensively elucidated from the ash removal, delignification, mechanical fibrillation and endoglucanase post-treatment. When water dosage was increased from 50 to 500 times of the WWS weight, the ash content gradually decreased during prewashing process, which facilitated lignin solubilization in subsequent p-toluenesulfonic acid (p-TsOH) hydrolysis. Read More

    A novel anammox process combined with vibration technology.
    Bioresour Technol 2018 Jan 31;256:277-284. Epub 2018 Jan 31.
    Institute of Process Equipment and Environmental Engineering, School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, PR China. Electronic address:
    This study investigated a fixed bed anammox bioreactor that uses vibration techniques to treat synthetic inorganic wastewater. Continuous experiments indicated that the activity elevation period could be shorten to one third, when the nitrogen removal rate (NRR) reached 1 kg·N/m·d with vibration. R2 achieved the maximum NRR of 3. Read More

    Sequestration and utilization of carbon dioxide by chemical and biological methods for biofuels and biomaterials by chemoautotrophs: Opportunities and challenges.
    Bioresour Technol 2018 Feb 10. Epub 2018 Feb 10.
    Microbial Processes and Technology Division, CSIR-NIIST, Trivandrum, India.
    To meet the COemission reduction targets, carbon dioxide capture and utilization (CCU) comes as an evolve technology. CCU concept is turning into a feedstock and technologies have been developed for transformation of COinto useful organic products. At industrial scale, utilization of COas raw material is not much significant as compare to its abundance. Read More

    Use of microalgae to recycle nutrients in aqueous phase derived from hydrothermal liquefaction process.
    Bioresour Technol 2018 Jan 31. Epub 2018 Jan 31.
    School of Resources, Environmental & Chemical Engineering and Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang, China. Electronic address:
    Hydrothermal liquefaction (HTL) of microalgae biomass generates an aqueous phase (AP) byproduct with limited energy value. Recycling the AP solution as a source of nutrients for microalgae cultivation provides an opportunity for a cost-effective production of HTL based biofuel and algal biomass feedstock for HTL, allowing a closed-loop biofuel production in microalgae HTL biofuel system. This paper aims to provide a comprehensive overview of characteristics of AP and its nutrients recycling for algae production. Read More

    Largely enhanced bioethanol production through the combined use of lignin-modified sugarcane and xylose fermenting yeast strain.
    Bioresour Technol 2018 Feb 10;256:312-320. Epub 2018 Feb 10.
    Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Clean Energy and Chemical Engineering, Korea University of Science and Technology, Daejeon 34113, Republic of Korea. Electronic address:
    The recalcitrant structure of lignocellulosic biomass is a major barrier in efficient biomass-to-ethanol bioconversion processes. The combination of feedstock engineering via modification in the lignin synthesis pathway of sugarcane and co-fermentation of xylose and glucose with a recombinant xylose utilizing yeast strain produced 148% more ethanol compared to that of the wild type biomass and control strain. The lignin reduced biomass led to a substantially increased release of fermentable sugars (glucose and xylose). Read More

    Investigations in sonication-induced intensification of crude glycerol fermentation to dihydroxyacetone by free and immobilized Gluconobacter oxydans.
    Bioresour Technol 2018 Feb 7;256:302-311. Epub 2018 Feb 7.
    Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781 039, Assam, India. Electronic address:
    This study reports crude glycerol fermentation by G. oxydans for dihydroxyacetone (DHA) production, and intensification of fermentation with sonication. Fermentation was carried out using both free and immobilized cells (on polyurethane foam support) for initial glycerol concentrations of 20, 30 and 50 g/L. Read More

    Development and application of a continuous fast microwave pyrolysis system for sewage sludge utilization.
    Bioresour Technol 2018 Feb 8;256:295-301. Epub 2018 Feb 8.
    University of Minnesota, 1390 Eckles Ave, St. Paul, MN 55108, USA; Nanchang University, 235 Nanjing Road, Nanchang City, Jiangxi 330047, China. Electronic address:
    A continuous fast microwave-assisted pyrolysis system was designed, fabricated, and tested with sewage sludge. The system is equipped with continuous biomass feeding, mixing of biomass and microwave absorbent, and separated catalyst upgrading. The effect of the sludge pyrolysis temperature (450, 500, 550, and 600 °C) on the products yield, distribution and potentially energy recovery were investigated. Read More

    Total inorganic nitrogen removal during the partial/complete nitrification for treating domestic wastewater: Removal pathways and main influencing factors.
    Bioresour Technol 2018 Feb 6;256:285-294. Epub 2018 Feb 6.
    National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China.
    Achieving nitrite accumulation was considered as the prerequisite of ANAMMOX, which hindered the application of ANAMMOX. In this study, total inorganic nitrogen (TIN) removal during the partial/complete nitrification was studied in a lab-scale sequencing batch reactor (SBR) for treating domestic wastewater. The results showed TIN was removed by denitrification, ANAMMOX and NO emission during the partial/complete nitrification. Read More

    Effect of adding low-concentration of rhamnolipid on reactor performances and microbial community evolution in MBBRs for low C/N ratio and antibiotic wastewater treatment.
    Bioresour Technol 2018 Feb 8. Epub 2018 Feb 8.
    State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China.
    This study aims to explore the potential of low-concentration of rhamnolipid in efficient treatment of wastewater with poor biodegradability. Six lab-scale moving bed biofilm reactors (MBBRs) were applied to investigate the effect of rhamnolipid concentration (0, 20, 50 mg/L) on pollutants removal, biomass accumulation, microbial morphology and community evolution in synthetic low C/N ratio (3:1) and antibiotic (50 μg/L tetracycline) wastewater. 20 mg/L rhamnolipid treated groups exhibited significant increase (p < 0. Read More

    Intensified nitrogen and phosphorus removal by embedding electrolysis in an anaerobic-anoxic-oxic reactor treating low carbon/nitrogen wastewater.
    Bioresour Technol 2018 Feb 7. Epub 2018 Feb 7.
    Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, PR China; Key Laboratory of the Three Gorges Reservoir's Eco-Environments, Ministry of Education, Chongqing University, Chongqing 400045, PR China.
    A modified anaerobic-anoxic-oxic (AAO) reactor embedding electrolysis was constructed for treatment of low carbon/nitrogen (C/N) wastewater. The effect of different current conditions on the performance of reactor was investigated in this study. When the current ranged from 0 mA to 200 mA, the removal efficiency of total nitrogen (TN) increased from 61. Read More

    Towards a better understanding on mercury adsorption by magnetic bio-adsorbents with γ-FeOfrom pinewood sawdust derived hydrochar: Influence of atmosphere in heat treatment.
    Bioresour Technol 2018 Feb 6;256:269-276. Epub 2018 Feb 6.
    Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China. Electronic address:
    Pyrolysis under protective atmosphere was regarded as an indispensable process for the preparation of biomass-based adsorbents to achieve higher surface areas. In this paper, magnetic carbon composites (MCC) that fabricated under air atmosphere showed an adsorption capacity of 167.22 mg/g in 200 ppm Hg(II), which was significantly higher than magnetic biochar (MBC, 31. Read More

    Nitrogen removal enhancement using lactic acid fermentation products from food waste as external carbon sources: Performance and microbial communities.
    Bioresour Technol 2018 Feb 8;256:259-268. Epub 2018 Feb 8.
    Department of Civil and Environmental Engineering, Tohoku University, Sendai 9808579, Japan.
    In this study, nitrogen removal using the lactic acid fermentation products from food waste and other external chemical carbon sources (sodium acetate, sodium lactate and starch) was investigated. Similar to sodium acetate and lactate, the lactic acid-enriched fermentation liquid from food waste (FLFW) exhibited a high denitrification rate (5.5 mg NO-N/(g-VSS h)) and potential (0. Read More

    Use of mixed wastewaters from piggery and winery for nutrient removal and lipid production by Chlorella sp. MM3.
    Bioresour Technol 2018 Feb 6;256:254-258. Epub 2018 Feb 6.
    Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, University of Newcastle, Callaghan, NSW 2308, Australia; CRC CARE, Newcastle University LPO, PO Box 18, Callaghan, NSW 2308, Australia. Electronic address:
    The larger-scale generation of piggery and winery wastewaters and consequent eutrophication are quite alarming, necessitating the use of a cost-effective treatment. This study attempted to remediate wastewaters from piggery and winery mixed in the ratios of 20:80, 50:50, 80:20, 100:0 and 0:100, in terms of nutrient removal and subsequent lipid accumulation by soil microalga, Chlorella sp. MM3. Read More

    HNOmodified biochars for uranium (VI) removal from aqueous solution.
    Bioresour Technol 2018 Feb 7;256:247-253. Epub 2018 Feb 7.
    College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
    The HNOtreatment was used to chemically modify the biochars produced from wheat straw (WH) and cow manure for U(VI) removal from aqueous solution. Macroscopic experiments proved that the enrichment of U(VI) on the biochars was regulated by surface complexation and electrostatic interactions. FTIR and XPS analyses confirmed that the highly efficient adsorption of U(VI) was due to the carboxyl groups on the biochar surfaces. Read More

    Enhancement in the aromatic yield from the catalytic fast pyrolysis of rice straw over hexadecyl trimethyl ammonium bromide modified hierarchical HZSM-5.
    Bioresour Technol 2018 Feb 8;256:241-246. Epub 2018 Feb 8.
    Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China. Electronic address:
    Modified H-type ZSM-5 (HZSM-5) catalysts were prepared using hexadecyl trimethyl ammonium bromide (CTAB) as mesopore templates to enhance the activity for the catalytic fast pyrolysis of rice straw for aromatics compounds. A certain quantity of CTAB added into the HZSM-5 (HZ) forming hierarchical structure exhibited an improvement in the yield of the aromatics and a decrease in the yield of coke in comparison with that of bare HZ. In contrast, excessive CTAB addition resulted in a decrease in aromatic yield and an increase in coke yield. Read More

    One-step conversion of agro-wastes to nanoporous carbons: Role in separation of greenhouse gases.
    Bioresour Technol 2018 Feb 6;256:232-240. Epub 2018 Feb 6.
    Department of Chemical Engineering, Widener University, One University Place, Chester, PA 19013, USA.
    Highly microporous carbons have been synthesized from four types of agro-wastes of lignin, walnut shells, orange peels and apricot seeds by one-step carbonization/activation with potassium hydroxide (KOH) in varying ratios. The resultant carbons demonstrated BET specific surface areas of 727-2254 m/g, and total pore volumes 0.34-1. Read More

    A system composed of a biofilm electrode reactor and a microbial fuel cell-constructed wetland exhibited efficient sulfamethoxazole removal but induced sul genes.
    Bioresour Technol 2018 Feb 7;256:224-231. Epub 2018 Feb 7.
    School of Environment, Nanjing Normal University, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Wenyuan Road 1, Nanjing 210023, China.
    The aim of this work was to study sulfamethoxazole (SMX) removal efficiency and fate of corresponding sul genes in a stacked microbial fuel cell-constructed wetland coupled biofilm electrode reactor system (MFC-CW-BER). Findings showed that two stacked MFC-CWs could provide a relatively stable electricity supply to support the biofilm for SMX removal. Excellent SMX removal (>99. Read More

    Influence of potassium hydroxide activation on characteristics and environmental risk of heavy metals in chars derived from municipal sewage sludge.
    Bioresour Technol 2018 Feb 7;256:216-223. Epub 2018 Feb 7.
    Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, Xinjiang, China.
    To investigate the influence of KOH activation on characteristics and environmental risk of heavy metals in chars, sludge was pyrolyzed with varying amount of KOH. The analyzation of characteristics and potential ecological risk evaluation of heavy metals were conducted by surface area analyzer, FTIR, XRD and BCR sequential extraction. The activated chars have higher surface area and lower content of silica compared to those without being activated. Read More

    In situ surface decoration of FeC/FeO/C nanosheets: Towards bi-functional activated carbons with supercapacitance and efficient dye adsorption.
    Bioresour Technol 2018 Feb 6;256:208-215. Epub 2018 Feb 6.
    College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China. Electronic address:
    This work reports a bi-functional activated porous carbon (PC) prepared from a biomass tofu, with excellent capacities for charge storage and adsorption of organic dyes, which is enabled by decorating with FeC/FeO/C nanosheets. The in-situ growth and self-assembly of the nanosheets on the carbon surface are achieved by a one-step catalytic carbonization of tofu simultaneously with FeCland ZnClcatalysts. Due to the high surface area and unique iron compounds-containing and sheet-like structures, the PCs exhibit an electrochemical capacitance of 315 F gat 0. Read More

    Improved methane removal in exhaust gas from biogas upgrading process using immobilized methane-oxidizing bacteria.
    Bioresour Technol 2018 Feb 7;256:201-207. Epub 2018 Feb 7.
    Shandong Industrial Engineering Laboratory of Biogas Production & Utilization, Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong Province 266101, PR China. Electronic address:
    Methane in exhaust gas from biogas upgrading process, which is a greenhouse gas, could cause global warming. The biofilter with immobilized methane-oxidizing bacteria (MOB) is a promising approach for methane removal, and the selections of inoculated MOB culture and support material are vital for the biofilter. In this work, five MOB consortia were enriched at different methane concentrations. Read More

    Electron transfer process in microbial electrochemical technologies: The role of cell-surface exposed conductive proteins.
    Bioresour Technol 2018 Jan 31. Epub 2018 Jan 31.
    Instituto de Tecnologia Química e Biológica António Xavier, Universidade NOVA de Lisboa, Av. da República-EAN, 2780-157, Oeiras, Portugal. Electronic address:
    Electroactive microorganisms have attracted significant interest for the development of novel biotechnological systems of low ecological footprint. These can be used for the sustainable production of energy, bioremediation of metal-contaminated environments and production of added-value products. Currently, almost 100 microorganisms from the Bacterial and Archaeal domains are considered electroactive, given their ability to efficiently interact with electrodes in microbial electrochemical technologies. Read More

    A review on the applications of microbial electrolysis cells in anaerobic digestion.
    Bioresour Technol 2018 Feb 12. Epub 2018 Feb 12.
    Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, No. 222, Tianshuinan Road, Lanzhou, Gansu 730000, People's Republic of China. Electronic address:
    Anaerobic digestion (AD) has been widely used for biogas or biofuel generation from waste treatment. Because a low production rate and instability of AD occur frequently, various technologies have been applied to improvement of AD. Microbial electrolysis cells (MECs), an emerging technology, can convert organic matter into hydrogen, methane, and other value-added products. Read More

    Bioelectroremediation of perchlorate and nitrate contaminated water: A review.
    Bioresour Technol 2018 Feb 6. Epub 2018 Feb 6.
    Separation and Conversion Technology, Flemish Institute for Technological Research (VITO), Boeretang 200, Mol 2400, Belgium. Electronic address:
    Fresh water is a fundamental source for humans, hence the recent shrinkage in freshwater and increase in water pollution are imperative problems that vigorously affect the people and the environment worldwide. The breakneck industrialization contributes to the procreation of substantial abundance of wastewater and its treatment becomes highly indispensable. Perchlorate and nitrate containing wastewaters poses a serious threat to human health and environment. Read More

    Rewiring the microbe-electrode interfaces with biologically reduced graphene oxide for improved bioelectrocatalysis.
    Bioresour Technol 2018 Feb 10;256:195-200. Epub 2018 Feb 10.
    Department of Chemical and Biological Engineering, South Dakota School of Mines and Technology, Rapid City, SD, USA; Department of Materials and Metallurgical Engineering, South Dakota School of Mines and Technology, Rapid City, SD 57701, USA; Composite and Nanocomposite Advanced Manufacturing Center - Biomaterials (CNAM-Bio Center), Rapid City, SD 57701, USA.
    The aim of this work was to study biologically reduced graphene oxide (RGO) for engineering the surface architecture of the bioelectrodes to improve the performance of Bioelectrochemical System (BES). Gluconobacter roseus mediates the reduction of graphene oxide (GO). The RGO modified bioelectrodes produced a current density of 1 mA/cmand 0. Read More

    Perspectives for the microbial production of methyl propionate integrated with product recovery.
    Bioresour Technol 2018 Feb 6;256:187-194. Epub 2018 Feb 6.
    Department of Biotechnology, Delft University of Technology, van der Maasweg 9, 2629HZ Delft, The Netherlands. Electronic address:
    A new approach was studied for bio-based production of methyl propionate, a precursor of methyl methacrylate. Recombinant E. coli cells were used to perform a cascade reaction in which 2-butanol is reduced to butanone using alcohol dehydrogenase, and butanone is oxidized to methyl propionate and ethyl acetate using a Baeyer-Villiger monooxygenase (BVMO). Read More

    Wheat straw fractionation by ethanol-water mixture: Optimization of operating conditions and comparison with diluted sulfuric acid pre-treatment.
    Bioresour Technol 2018 Feb 2;256:178-186. Epub 2018 Feb 2.
    Laboratory of Cellulose and Paper, INIA, Forest Research Center, Ctra. de La Coruña km 7.5, 28040 Madrid, Spain. Electronic address:
    The fractionation of wheat straw by ethanol-water (EW) pre-treatment was studied regarding its main operating conditions: time, temperature, L/S ratio and ethanol percentage were optimized by using an orthogonal experimental design (Taguchi). Afterwards, diluted sulfuric acid (DSA) hydrolysis and EW treatments have been compared in terms of energy consumption and yield of a cellulosic solid residue able to be enzymatically hydrolyzed to glucose. Experimental results show that temperature is the only variable of EW with a significant effect on the quality of the pretreated solids. Read More

    Rapid start-up of a nitritation granular reactor using activated sludge as inoculum at the influent organics/ammonium mass ratio of 2/1.
    Bioresour Technol 2018 Feb 7;256:170-177. Epub 2018 Feb 7.
    School of Environmental Science and Engineering, Suzhou University of Science and Technology, No. 1 Kerui Road, 215009 Suzhou, People's Republic of China.
    Partial oxidation of ammonium to nitrite is a pre- and crucial step to achieve shortcut biological nitrogen removal from ammonium-rich wastewater. In the present study, a nitritation granular reactor using activated sludge as inoculum was started up in a sequencing batch reactor (SBR) at a fixed influent C/N ratio of 2:1. Variations in the reactor performance, functional bacteria activities, sludge morphology and bacterial community structure were investigated. Read More

    Pressurized entrained-flow pyrolysis of microalgae: Enhanced production of hydrogen and nitrogen-containing compounds.
    Bioresour Technol 2018 Feb 7;256:160-169. Epub 2018 Feb 7.
    Key Laboratory of Advanced Coal and Coking Technology of Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China; Chemical Engineering, University of Newcastle, Callaghan, NSW 2308, Australia. Electronic address:
    Pressurized entrained-flow pyrolysis of Chlorella vulgaris microalgae was investigated. The impact of pressure on the yield and composition of pyrolysis products were studied. The results showed that the concentration of Hin bio-gas increased sharply with increasing pyrolysis pressure, while those of CO, CO, CH, and CHwere dramatically decreased. Read More

    Ammonia-oxidizing bacteria dominate ammonia oxidation in a full-scale wastewater treatment plant revealed by DNA-based stable isotope probing.
    Bioresour Technol 2018 Feb 7;256:152-159. Epub 2018 Feb 7.
    Research Department of Microbiology, Allwegene Technology Co., Ltd, Beijing 102209, China.
    A full-scale wastewater treatment plant (WWTP) with three separate treatment processes was selected to investigate the effects of seasonality and treatment process on the community structures of ammonia-oxidizing archaea (AOA) and bacteria (AOB). And then DNA-based stable isotope probing (DNA-SIP) was applied to explore the active ammonia oxidizers. The results of high-throughput sequencing indicated that treatment processes varied AOB communities rather than AOA communities. Read More

    Microwave-assisted catalytic pyrolysis of moso bamboo for high syngas production.
    Bioresour Technol 2018 Feb 6;256:145-151. Epub 2018 Feb 6.
    Jiangsu Provincial Engineering Laboratory for Biomass Conversion and Process Integration, School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
    Microwave-assisted pyrolysis of moso bamboo with the activated carbon-supported iron(III) ion catalyst was carried out with the aim of obtaining high quality and quantity syngas(H + CO). The effect of the catalyst on moso bomboo pyrolysis involving the temperature-rising characteristics, product distribution, tar conversion and gas compositions were investigated. The results indicated that the catalyst improved the microwave-absorption capability and increased the maximum reaction temperatures. Read More

    Effect of support material pore size on the filtration behavior of dynamic membrane bioreactor.
    Bioresour Technol 2018 Feb 6. Epub 2018 Feb 6.
    Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-Sen University), Guangzhou 510275, China.
    The effect of support material pore size on the filtration behaviors during start-up and stabilized stages in the dynamic membrane bioreactors (DMBR) was studied. Before the dynamic membrane (DM) was formed, the turbidity at 50-μm could be more than 250 NTU, while it was less than 40 and 10 NTU at 25- and 10-μm, respectively. After the DM was formed, the stabilized stage lasted for 61 days with low transmembrane pressure <0. Read More

    Extremophiles for microbial-electrochemistry applications: A critical review.
    Bioresour Technol 2018 Feb 2. Epub 2018 Feb 2.
    Civil and Environmental Engineering, South Dakota School of Mines and Technology, 501 E Saint Joseph Blvd, Rapid City, SD 57701, United States; Surface Engineering Research Center, South Dakota School of Mines and Technology, 501 E Saint Joseph Blvd, Rapid City, SD 57701, United States. Electronic address:
    Extremophiles, notably archaea and bacteria, offer a good platform for treating industrial waste streams that were previously perceived as hostile to the model organisms in microbial electrochemical systems (MESs). Here we present a critical overview of the fundamental and applied biology aspects of halophiles and thermophiles in MESs. The current study suggests that extremophiles enable the MES operations under a seemingly harsh conditions imposed by the physical (pressure, radiation, and temperature) and geochemical extremes (oxygen levels, pH, and salinity). Read More

    Exploring optimal supplement strategy of medicinal herbs and tea extracts for bioelectricity generation in microbial fuel cells.
    Bioresour Technol 2018 Feb 2;256:95-101. Epub 2018 Feb 2.
    Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan.
    This first-attempt study used extracts of appropriate antioxidant abundant Camellia and non-Camellia tea and medicinal herbs as model ESs to stably intensify bioelectricity generation performance in microbial fuel cells (MFCs). As electron shuttles (ESs) could stimulate electron transport phenomena by significant reduction of electron transfer resistance, the efficiency of power generation for energy extraction in microbial fuel cells (MFCs) could be appreciably augmented. Using environmentally friendly natural bioresource as green bioresource of ESs is the most promising to sustainable practicability. Read More

    Outdoor pilot-scale cultivation of Spirulina sp. LEB-18 in different geographic locations for evaluating its growth and chemical composition.
    Bioresour Technol 2018 Feb 9;256:86-94. Epub 2018 Feb 9.
    Department of Bromatological Analysis, College of Pharmacy, Federal University of Bahia, Salvador, Brazil.
    This study evaluated whether outdoor cultivation of Spirulina sp. in different geographical locations affected its growth and biomass quality, with respect to the chemical composition, volatile compound and heavy metal content, and thermal stability. The positive effect of solar radiation and temperature on biomass productivity in Spirulina sp. Read More

    Mechanical cell disruption of Parachlorella kessleri microalgae: Impact on lipid fraction composition.
    Bioresour Technol 2018 Feb 2;256:77-85. Epub 2018 Feb 2.
    CNRS, GEPEA, UMR 6144, Université Bretagne Loire, CRTT, 37 boulevard de l'Université, BP 406, 44602 Saint Nazaire Cedex, France. Electronic address:
    Samples of nitrogen-starved Parachlorella kessleri containing intact cells (IC), cells ground by bead milling (BM), and cells subjected to high-pressure cell disruption (HPD), together with their supernatants after centrifugation, were compared for granulometry and lipid profiles. The effects of disruption on the lipid profile and organisation were evaluated. The quantity of lipids available for extraction increased with disruption, and up to 81% could be recovered in supernatants after centrifugation, but a marked reorganization occurred. Read More

    Effects of changes in temperature on treatment performance and energy recovery at mainstream anaerobic ceramic membrane bioreactor for food waste recycling wastewater treatment.
    Bioresour Technol 2018 Feb 7;256:137-144. Epub 2018 Feb 7.
    Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, South Korea. Electronic address:
    An anaerobic ceramic membrane bioreactor (AnCMBR) has been attracted as an alternative technology to co-manage various organic substrates. This AnCMBR study investigated process performance and microbial community structure at decreasing temperatures to evaluate the potential of AnCMBR treatment for co-managing domestic wastewater (DWW) and food waste-recycling wastewater (FRW). As a result, the water flux (≥6. Read More

    Effect of tricarboxylic acid cycle regulator on carbon retention and organic component transformation during food waste composting.
    Bioresour Technol 2018 Feb 2;256:128-136. Epub 2018 Feb 2.
    College of Life Science, Northeast Agricultural University, Harbin 150030, China. Electronic address:
    Composting is an environment friendly method to recycling organic waste. However, with the increasing concern about greenhouse gases generated in global atmosphere, it is significant to reduce the emission of carbon dioxide (CO). This study analyzes tricarboxylic acid (TCA) cycle regulators on the effect of reducing COemission, and the relationship among organic component (OC) degradation and transformation and microorganism during composting. Read More

    A comprehensive insight into the effects of microwave-HOpretreatment on concentrated sewage sludge anaerobic digestion based on semi-continuous operation.
    Bioresour Technol 2018 Feb 1;256:118-127. Epub 2018 Feb 1.
    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Water Pollution Control Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:
    This study gave a comprehensive insight into the effects of microwave-HOpretreatment on concentrated sludge anaerobic digestion (AD). Results showed that mixture of activated sludge and pretreated sludge at mass ratio of 1:1 was efficient for enhancing AD, methane production was increased from 215.51 mL/g VSto 258. Read More

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