A new strategy for accelerating recovery of anaerobic granular sludge after low-temperature shock: In situ regulation of quorum sensing microorganisms embedded in polyvinyl alcohol sodium alginate
In conclusion, this study demonstrated that PVA/SA@Serratia could effectively strengthen AnGS after low-temperature shock.PMID:38636877 | DOI:10.1016/j.biortech.2024.130709 (Source: Bioresource Technology)
Source: Bioresource Technology - April 18, 2024 Category: Biotechnology Authors: Longyi Lv Jiarui Chen Ziyin Wei Peng Hao Pengfei Wang Xiaoyang Liu Wenfang Gao Li Sun Jinsong Liang Zhijun Ren Guangming Zhang Weiguang Li Source Type: research
Continuous selenite biotransformation and biofuel production by marine diatom in the presence of fulvic acid
In this study, the biochemical response of Phaeodactylum tricornutum to varying concentrations of inorganic selenium (Se) was investigated. It was observed that, when combined with fulvic acid, P. tricornutum exhibited enhanced uptake and biotransformation of inorganic Se, as well as increased microalgal lipid biosynthesis. Notably, when subjected to moderate (5 and 10 mg/L) and high (20 and 40 mg/L) concentrations of selenite under fulvic acid treatment, there was a discernible redirection of carbon flux towards lipogenesis and protein biosynthesis from carbohydrates. In addition, the key parameters of microalgae-based bi...
Source: Bioresource Technology - April 18, 2024 Category: Biotechnology Authors: Hui-Ying Xu Ruo-Yu Li Zi-Qiang Yang Jia-Fan Qiu Yu-Bin Su Carol Sze Ki Lin Wei-Dong Yang Hong-Ye Li Jian-Wei Zheng Xiang Wang Source Type: research
Nitrogen removal and carbon reduction of mature landfill leachate under extremely low dissolved oxygen conditions by simultaneous partial nitrification anammox and denitrification
In this study, a SNAD-SBBR process was implemented to achieve ammonia removal and carbon reduction of mature landfill leachate under extremely low dissolved oxygen conditions (0.051 mg/L) for a continuous operation of 266 days. The process demonstrated excellent removal performance, with ammonia nitrogen removal efficiency reaching 100 %, total nitrogen removal efficiency reaching 87.56 %, and an average removal rate of 0.180 kg/(m3·d). The recalcitrant organic compound removal efficiency reached 34.96 %. Nitrogen mass balance analysis revealed that the Anammox process contributed to approximately 98.1 % of the nitrogen r...
Source: Bioresource Technology - April 18, 2024 Category: Biotechnology Authors: Lina Wu Jian Yin Yulin Zhang Anteng Luo Yinghao Tian Yufan Liu Yongzhen Peng Source Type: research
Optimizing hydraulic retention time of high-rate activated sludge designed for potential integration with partial nitritation/anammox in municipal wastewater treatment
In this study, an airlift HRAS reactor was operated in the continuous inflow mode for 200 d at a wastewater treatment plant. The balance between potential PN/A system stability and peak HRAS performance under decreasing hydraulic retention time (HRT) was optimized. Energy consumption and recovery and CO2 emissions were calculated. The results showed that the optimal HRT suitable with the PN/A process was 3 h, achieving 2-3 g/L mixed liquor volatile suspended solid, 67.8 % chemical oxygen demand (COD) recovery, 81 % total COD removal efficiency, 2.27 ± 1.03 g COD/L/d organic loading rate, 62 % aeration reduction, and 0.24 ...
Source: Bioresource Technology - April 18, 2024 Category: Biotechnology Authors: Yanxiao Wei Weizhe Xia Min Ye Fuqiang Chen Yunzhi Qian Yu-You Li Source Type: research
Synergistic improvement of humus formation in compost residue by fenton-like and effective microorganism composite agents
This study employed a composite reagent, comprising Fenton-like agents and effective microorganisms (EM) to improve humification. This composite reagent increased humic-acid production by 37.44 %, reaching 39.82 g kg-1, surpassing the control group. The composite reagent synergistically promoted micromolecular fulvic acid and large humic acid production. Collaborative mechanism suggests that Fenton-like agents contributed to bulk residue decomposition and stimulated the evolution of microbial communities, whereas EMs promoted highly aromatic substance synthesis and adjusted the microbial community structure. Sequencing ana...
Source: Bioresource Technology - April 17, 2024 Category: Biotechnology Authors: Jun Zhuo Cai Ying Lan Yu Zhan Biao Yang Xiao Xun Xu Guo Chun Lv Chang Lian Xu Gui Yin Wang Xin Qi Ting Li Yu Bon Man Ming Hung Wong Zhang Cheng Source Type: research
Pilot composite tubular bioreactor for outdoor photo-fermentation hydrogen production: From batch to continuous operation
Bioresour Technol. 2024 Apr 15:130705. doi: 10.1016/j.biortech.2024.130705. Online ahead of print.ABSTRACTA novel 70 L composite tubular photo-bioreactor was constructed, and its photo-fermentation hydrogen production characteristics of batch and continuous modes were investigated with glucose as the substrate in an outdoor environment. In the batch fermentation stage, the hydrogen production rate peaked at 37.6 mL H2/(L·h) accompanied by a high hydrogen yield of 7 mol H2/mol glucose. The daytime light conversion efficiency is 4 %, with 37 % of light energy from the sun. An optimal hydraulic retention time of 5 d was iden...
Source: Bioresource Technology - April 17, 2024 Category: Biotechnology Authors: Changpeng Ren Sihu Zhang Qing Li Qiushi Jiang Yongbing Li Zixuan Gao Wen Cao Liejin Guo Source Type: research
Deciphering Bisphenol A degradation by Coelastrella sp. M60: Unravelling metabolic insights through metabolomics analysis
This study mainly investigated the BPA degradation by Coelastrella sp. M60 at various concentrations (10 to 50 mg/L) using GC-MS analysis. Further, the metabolic profiling of Coelastrella sp. M60 was performed via the MetaboAnalyst and results revealed that BPA exposure modulated the metabolites profile with the presence of intermediates like 4-hydroxybenzoic acid and benzene. Moreover, the highest lipid (54 %) and pigment content (40 %) at 10 mg/L of BPA exposure. Fatty acid methyl esters were quantified in Coelastrellasp. M60, with enhanced recovery facilitated by Cuprous oxide nanoparticle (Cu2O NPs) synthesized from Sp...
Source: Bioresource Technology - April 15, 2024 Category: Biotechnology Authors: Velmurugan Ajithkumar ArunKumar Malaisamy Appaiyan Philomina Nagamalai Sakthi Vignesh Elamathi Vimali Drishanu Dey Innasi Muthu Ganesh Moorthy Balasubramaniem Ashokkumar Perumal Varalakshmi Source Type: research
Deciphering Bisphenol A degradation by Coelastrella sp. M60: Unravelling metabolic insights through metabolomics analysis
This study mainly investigated the BPA degradation by Coelastrella sp. M60 at various concentrations (10 to 50 mg/L) using GC-MS analysis. Further, the metabolic profiling of Coelastrella sp. M60 was performed via the MetaboAnalyst and results revealed that BPA exposure modulated the metabolites profile with the presence of intermediates like 4-hydroxybenzoic acid and benzene. Moreover, the highest lipid (54 %) and pigment content (40 %) at 10 mg/L of BPA exposure. Fatty acid methyl esters were quantified in Coelastrellasp. M60, with enhanced recovery facilitated by Cuprous oxide nanoparticle (Cu2O NPs) synthesized from Sp...
Source: Bioresource Technology - April 15, 2024 Category: Biotechnology Authors: Velmurugan Ajithkumar ArunKumar Malaisamy Appaiyan Philomina Nagamalai Sakthi Vignesh Elamathi Vimali Drishanu Dey Innasi Muthu Ganesh Moorthy Balasubramaniem Ashokkumar Perumal Varalakshmi Source Type: research
Deciphering Bisphenol A degradation by Coelastrella sp. M60: Unravelling metabolic insights through metabolomics analysis
This study mainly investigated the BPA degradation by Coelastrella sp. M60 at various concentrations (10 to 50 mg/L) using GC-MS analysis. Further, the metabolic profiling of Coelastrella sp. M60 was performed via the MetaboAnalyst and results revealed that BPA exposure modulated the metabolites profile with the presence of intermediates like 4-hydroxybenzoic acid and benzene. Moreover, the highest lipid (54 %) and pigment content (40 %) at 10 mg/L of BPA exposure. Fatty acid methyl esters were quantified in Coelastrellasp. M60, with enhanced recovery facilitated by Cuprous oxide nanoparticle (Cu2O NPs) synthesized from Sp...
Source: Bioresource Technology - April 15, 2024 Category: Biotechnology Authors: Velmurugan Ajithkumar ArunKumar Malaisamy Appaiyan Philomina Nagamalai Sakthi Vignesh Elamathi Vimali Drishanu Dey Innasi Muthu Ganesh Moorthy Balasubramaniem Ashokkumar Perumal Varalakshmi Source Type: research
Enhancement of bio-promoters on hexavalent chromium inhibited sulfur-driven denitrification: repairing damage, accelerating electron transfer, and reshaping microbial collaboration
This study proposed an effective bio-promoter (mediator-promoter composed of L-cysteine, biotin, cytokinin, and anthraquinone-2,6-disulfonate) to recover Cr(VI) inhibited sulfur-driven denitrification, which effectively reduced the recovery time of NO3--N reduction (18-21 cycles) and NO2--N reduction (27-42 cycles) compared with self-recovery. The mediator-promoter repaired microbial damage by promoting intracellular chromium efflux. Moreover, the mediator-promoter reduced the accumulated reactive oxygen species by stimulating the secretion of antioxidant enzymes, reaching equilibrium in the oxidative-antioxidant system. T...
Source: Bioresource Technology - April 14, 2024 Category: Biotechnology Authors: Qian Wang Chenggong Zhang Jinxin Song Bibek Bamanu Yingxin Zhao Source Type: research
Enhanced biobased carbon materials made from softwood bark via a steam explosion preprocessing step for reactive orange 16 dye adsorption
This study investigates a novel preprocessing method for producing activated carbons from abundantly available softwood bark. The preprocessing involved a continuous steam explosion preconditioning step, chemical activation with ZnCl2, pyrolysis at 600 and 800 °C, and washing. The activated carbons were subsequently characterized by SEM, XPS, Raman and FTIR prior to evaluation for their effectiveness in adsorbing reactive orange 16 and two synthetic dyehouse effluents. Results showed that the steam-exploded carbon, pyrolyzed at 600 °C, obtained the highest BET specific surface area (1308 m2/g), the best Langmuir maximum ...
Source: Bioresource Technology - April 14, 2024 Category: Biotechnology Authors: Andreas Averheim Glaydson Sim ões Dos Reis Alejandro Grimm Davide Bergna Anne Heponiemi Ulla Lassi Mikael Thyrel Source Type: research
Synergistic microwave and acidic deep eutectic solvent-based pretreatment of Theobroma cacao pod husk biomass for xylooligosaccharides production
Bioresour Technol. 2024 Apr 12:130702. doi: 10.1016/j.biortech.2024.130702. Online ahead of print.ABSTRACTThe bioconversion of lignocellulosic biomass into novel bioproducts is crucial for sustainable biorefineries, providing an integrated solution for circular economy objectives. The current study investigated a novel microwave-assisted acidic deep eutectic solvent (DES) pretreatment of waste cocoa pod husk (CPH) biomass to extract xylooligosaccharides (XOS). The sequential DES (choline chloride/citric acid, molar ratio 1:1) and microwave (450W) pretreatment of CPH biomass was effective in 67.3% xylan removal with a 52% X...
Source: Bioresource Technology - April 14, 2024 Category: Biotechnology Authors: Aditya Yadav Vishal Sharma Mei-Ling Tsai Diksha Sharma Parushi Nargotra Chiu-Wen Chen Pei-Pei Sun Cheng-Di Dong Source Type: research
A new substrate equalization method for optimizing the influent conditions and fluid flow patterns of a multifed upflow anaerobic sludge blanket (MUASB) reactor with mature anammox granules
Bioresour Technol. 2024 Apr 12:130700. doi: 10.1016/j.biortech.2024.130700. Online ahead of print.ABSTRACTTo improve nitrogen removal efficiency (NRE) and achieve homogenous distribution of anammox sludge and substrate, a new substrate equalization theory and a cumulative overload index was proposed for multifed upflow anaerobic sludge bed (MUASB) reactors with mature anammox granules. The performance and flow patterns of MUASB reactors were investigated under various influent conditions. The results showed that the nitrogen removal performance and stability of MUASB reactors could be optimized by minimizing the cumulative...
Source: Bioresource Technology - April 14, 2024 Category: Biotechnology Authors: Bao-Shan Xing Xi-Fang Tang Ling-Hu Li Yu-Lin Fu Jia-Yi Liu Ya-Ge Wang Xin-Xin Sun Yu-You Li Rong Chen Ren-Cun Jin Source Type: research
The impact of microbial inoculants on large-scale composting of straw and manure under natural low-temperature conditions
This study provides significant insights into large-scale composting under natural conditions, contributing to the advancement of waste management strategies and the promotion of sustainable agriculture.PMID:38614144 | DOI:10.1016/j.biortech.2024.130696 (Source: Bioresource Technology)
Source: Bioresource Technology - April 13, 2024 Category: Biotechnology Authors: Yanping Wang Qi Yu Chuang Zheng Yanbo Wang Heshu Chen Shijia Dong Xiaomei Hu Source Type: research
Growth, nutrient removal, and lipid productivity promotion of Chlorella sorokiniana by phosphate solubilizing bacteria Bacillus megatherium in swine wastewater: Performances and mechanisms
This study provided novel insights to enhance microalgae-based nutrient removal combined with biofuel production in practical wastewater, especially with complex forms of phosphorus.PMID:38614145 | DOI:10.1016/j.biortech.2024.130697 (Source: Bioresource Technology)
Source: Bioresource Technology - April 13, 2024 Category: Biotechnology Authors: Ya-Ming Ge Wan-Chuan Xing Xiu Lu Shao-Rou Hu Jun-Zhi Liu Wei-Feng Xu Hai-Xiang Cheng Feng Gao Qing-Guo Chen Source Type: research
