Article
Engineering, Environmental
Yanghui Xu, Qin Ou, Qiang He, Zhengsong Wu, Jun Ma, Xiaoliu Huangfu
Summary: The extracellular polymeric substances (EPS) in activated sludge play significant roles in the adsorption of nanoparticles, especially nano-silver (nano-Ag), from wastewater. This study investigated the adsorption mechanism of nano-Ag by activated sludge and the contributions of different EPS fractions. The results showed that about 26-41% of nano-Ag was trapped by the bound EPS matrix and 42.5-52.6% of them were adsorbed onto the inner cells. The interaction energy contributions of EPS fractions varied, with DEPS being negative and LB-EPS and TB-EPS being positive. EPS fractions played a significant role in adsorbing nano-Ag at low concentrations but had limited effect at high concentrations.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Weiliang Pan, Jiaoni Li, Xun Zhang, Shan Liang, Yinghao Kang, Rui Deng, Li Gu, Qiang He
Summary: In this study, we investigated the dewaterability of sludge treated with KMnO4 at different pH levels. We observed a significant improvement in dewatering performance, as indicated by reduced capillary suction times (CST) and specific resistance to filtration (SRF) values. The reduction in tightly bound extracellular polymeric substances (EPS) was also observed. Spectroscopic and electrochemical analysis provided insights into the mechanisms underlying the improved dewatering performance, which involved changes to the physicochemical properties and EPS of the sludge.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Chong-Jian Tang, Xi Chen, Fan Feng, Zhi-Gong Liu, Yu-Xia Song, Yun-Yan Wang, Xi Tang
Summary: In this study, it was found that anammox sludge had the highest Cu(II) adsorption capacity, followed by activated sludge and denitrifying sludge. The adsorption processes were well explained by Langmuir isotherms.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Environmental
Changtao Chen, Tao Zhang, Li Lv, Yanxiao Chen, Wenxiang Tang, Shengwei Tang
Summary: The use of ionic liquid [EMIM][OTf] as a conditioner significantly improves the dewatering performance of waste activated sludge (WAS) by reducing moisture content. The mechanism involves the destruction of EPS structures, inactivation of microbial cells, and conversion of large flocs into small particles and biopolymers. Additionally, the negative charges of WAS are neutralized, weakening electrostatic repulsion between flocs, and [EMIM][OTf] can be recycled multiple times.
Article
Environmental Sciences
Juanru Yang, Yu Zhang, Shulian Wang
Summary: Algal-bacterial granular sludge technology is a new and efficient method for wastewater treatment. This study investigated the impact of coexisting Pb(II) on the symbiosis of algal-bacterial granular sludge. The results demonstrated that low concentrations of Pb(II) had little effect on the performance of algal-bacterial granular sludge in wastewater treatment.
Article
Environmental Sciences
Chengyu Jiang, Qingjin Chen
Summary: At a concentration of 10 μg/L, nanoparticles reduce sludge dewaterability, while an improvement is observed at 100 μg/L. Aging can alleviate the effects of these two concentrations on sludge dewatering.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Zhang-Wei He, Wen-Zong Liu, Cong-Cong Tang, Bin Liang, Ai-Juan Zhou, Fan Chen, Yong-Xiang Ren, Ai-Jie Wang
Summary: The study revealed that BACs accelerated cell lysis and contributed to the accumulation of SCFAs in waste activated sludge. At high concentrations, BACs almost completely inhibited methane production and shifted microbial communities related to SCFAs and methane productions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Jin Qian, Xixian He, Peifang Wang, Bin Xu, Kun Li, Bianhe Lu, Wen Jin, Sijing Tang
Summary: The study investigated the acute effects of three polystyrene nanoplastics on the extracellular polymeric substance composition of activated sludge. The results showed significant inhibition in EPS and protein production, as well as cellular oxidative stress and cell membrane damage. The influence on EPS and cytotoxicity of activated sludge varied with the surface functional groups of the polystyrene nanoplastics.
ENVIRONMENTAL POLLUTION
(2021)
Article
Agricultural Engineering
Pengfei Wan, Ying Liu, Quandi Zhang, Li Jiang, Heping Chen, Wenzhou Lv
Summary: Candida Tropicalis was used to improve the dewaterability of activated sludge (AS) by degrading EPS in AS, resulting in a decrease in protein, polysaccharide, and hydrophilic amino acids in EPS. The yeast degraded macromolecular organics into smaller molecular ones and direct addition of yeast to AS was more effective in EPS degradation. Addition of 0.75 g/L of wet yeast cells and 24 h of aeration enhanced the dewaterability of AS with a reduction in CST and MLSS. After 30 days of operation, lab-scale continuous SBRs reduced CST and MLSS of AS. FTIR spectroscopy showed a decrease in hydrophilic functional groups. This study presents a new approach for in-situ reduction of AS in wastewater treatment plants.
BIORESOURCE TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Aulia Maulana, Resa Setia Adiandri, Ramaraj Boopathy, Tjandra Setiadi
Summary: Textile wastewater sludge can be repurposed as a valuable resource through the extraction of extracellular polymeric substance (EPS) to reduce treatment costs. Sludges from different textile industries showed variations in protein/carbohydrate ratio and emulsification activity after EPS production.
JOURNAL OF BIOSCIENCE AND BIOENGINEERING
(2022)
Article
Engineering, Environmental
Jianwei Qu, Hanxiang Li, Shanshan Xu, Jie Huang, Zhiping Liu, Man Long, Jinsong Guo, Fang Fang
Summary: This study investigated the effect of polystyrene nanoplastics (PS-NPs) on the flocculation performance of activated sludge (AS). The results showed that the presence of PS-NPs reduced the flocculation efficiency of AS. PS-NPs adsorbed on the surface of AS, changing its surface characteristics and increasing its electronegativity. The decrease in zeta potential and changes in extracellular polymeric substance (EPS) structure were the main factors hindering flocculation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Engineering, Chemical
Yuxin Zhang, Zichen Ling, Miaomiao Zhao, Li Sha, Chen Li, Xuebin Lu
Summary: This study designed a technique using acid-magnetic powder conditioning as a pretreatment for sludge electro-dewatering, and found that acid-magnetic powder conditioning can greatly enhance the dewatering efficiency. It enhances the electro-dewatering effect mainly by destroying the substrate and reducing the sludge resistance. Additionally, there was a significant decrease in sludge impedance after conditioning.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Environmental
Rui Tang, Haiping Luo, Henning Prommer, Zhengbo Yue, Wei Wang, Kuizu Su, Zhen-Hu Hu
Summary: The extensive use of organoarsenic feed additives has led to the occurrence of organoarsenicals in livestock wastewater and anaerobic wastewater treatment systems. The long-term impact of roxarsone on Anaerobic Granular Sludge (AGS) activity has been investigated in this study, revealing a significant reduction in methane production initially, with eventual restoration. The study also found that roxarsone exposure stimulated the excretion of extracellular polymeric substances and surface spalling of AGS, while altering microbial pathways and inhibiting specific methanogen species before full restoration of methane production.
Article
Environmental Sciences
Wenhao Li, Nanwen Zhu, Yanwen Shen, Haiping Yuan
Summary: Ozone treatment is effective in removing PAHs from waste activated sludge, with removal efficiency increasing with ozone dosage and being highly dependent on pH. The presence of soluble organic compounds, such as proteins and humic substances, can interfere with PAHs degradation during ozonation, highlighting the need for intermittent ozonation for improved removal efficiency.
ENVIRONMENTAL RESEARCH
(2021)
Article
Agricultural Engineering
Hao Huang, Qian Zeng, Philippe M. Heynderickx, Guang-Hao Chen, Di Wu
Summary: Anaerobic digestion of waste activated sludge is commonly used for stabilization, mass reduction, and resource recovery, but its performance can be hindered by poor digestibility and slow degradation rate. A series of bench-scale tests using an innovative electrochemical pretreatment method showed that destruction of the EPS matrix and anaerobic digestibility can be enhanced, with the most significant improvement observed at 15V for 1.5 hours. Economic analysis indicated that a 1-hour, 12V EPT is the most economically feasible option.
BIORESOURCE TECHNOLOGY
(2021)
Review
Environmental Sciences
Hafiz Adeel Ahmad, Shakeel Ahmad, Qingjie Cui, Zhibin Wang, Haiwei Wei, Xue Chen, Shou-Qing Ni, Sherif Ismail, Hanem M. Awad, Ahmed Tawfik
Summary: Emerging pollutants, such as pharmaceuticals and plasticizers, have raised global concerns due to their low concentration and severe toxicity. Research in the past decades has focused on the environmental distribution, ecological disturbance, and removal of EPs, but systematic reviews on the degradation of different EPs by using microbes are limited. This review article highlights the importance of using different microbes to degrade EPs and emphasizes the eco-friendly approach.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Lijuan Deng, Wenshan Guo, Huu Hao Ngo, Xinbo Zhang, Cheng Chen, Zhuo Chen, Dongle Cheng, Shou-Qing Ni, Quan Wang
Summary: This review highlights the importance of media used in attached growth MBR (AGMBR) for wastewater treatment, with conventional media enhancing pollutant removal and new media excelling in removing emerging pollutants. Additionally, media improve sludge characteristics and alleviate membrane fouling issues. Future research should focus on developing new functional media for wider spectrum pollutant removal and enhancing biogas generation in AGMBRs at pilot or full-scale levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Yeonju Kim, Jaecheul Yu, Soyeon Jeong, Jeongmi Kim, Seongjae Park, Hyokwan Bae, Sung-Keun Rhee, Tatsuya Unno, Shou-Qing Ni, Taeho Lee
Summary: This study evaluated the effect of Ca2+ and Mg2+ augmentation on the recovery of freshwater anammox granules affected by salinity stress. The results showed that adding Ca2+ and Mg2+ at optimal concentrations increased the granules' activity and EPS production. Salinity stress did not significantly affect the microbial community in the granules. The alleviation effect of divalent cations on salinity stress might be associated with increased EPS production rather than changes to the anammox bacteria.
APPLIED SCIENCES-BASEL
(2022)
Article
Green & Sustainable Science & Technology
Muhammad Abdul Qyyum, Sherif Ismail, Shou-Qing Ni, Ihsanullah Ihsanullah, Rizwan Ahmad, Amin Khan, Ahmed Tawfik, Abdul-Sattar Nizami, Moonyong Lee
Summary: This article comprehensively evaluates recent reports on hydrogen production from wastewater and highlights fermentation as one of the most promising methods. The study found that the sequential dark/photo fermentation approach offers maximum hydrogen yield, but more pilot-scale studies are needed. Additionally, the current challenges in implementing and commercializing wastewater hydrogen production are emphasized.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Xiufeng Cao, Xiaowei Cui, Meng Xie, Rui Zhao, Lei Xu, Shouqing Ni, Zhaojie Cui
Summary: Intensified phytoremediation shows great potential in remediation of complex co-contaminated soils, with different plants exhibiting varying efficiency in removing PAHs and heavy metals. Amendments and microbial agents can significantly increase the efficiency of phytoremediation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Multidisciplinary Sciences
Yuyang Xie, Xiaolin Liu, Haiwei Wei, Xue Chen, Ningji Gong, Shakeel Ahmad, Taeho Lee, Sherif Ismail, Shou-Qing Ni
Summary: Direct sewage discharge has serious and irreversible harm to the environment, especially to the river ecosystem. Sewage discharge leads to changes in the microbial community structure of the river, reducing the diversity and richness of bacteria, while increasing the gene abundance of pathogenic bacteria.
SCIENTIFIC REPORTS
(2022)
Article
Biotechnology & Applied Microbiology
Jinliang Xu, Qingjie Cui, Cuina Bu, Sherif Ismail, Shou-Qing Ni
Summary: This study evaluated the microbial community of different types of sludge in a full-scale sidestream partial nitrification-anammox plant to understand the separation mechanism of anammox and nitrifiers. Suspended sludge showed higher partial nitrification capacity while biofilm sludge had higher anammox activity. High-throughput results revealed that Nitrosomonas was the main active ammonia-oxidizing bacteria in suspended sludge, and Candidatus Brocadia had the highest abundance in biofilm sludge.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Kuo Zhang, Xinjue Li, Shou-Qing Ni, Sitong Liu
Summary: The study investigated the impact of different carrier materials on nitritation performance, finding that the Sepiolite nonwoven composite carrier significantly inhibits nitrite-oxidizing bacteria, improving the efficiency of the nitritation process and holding significant importance for mainstream wastewater treatment.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Engineering, Environmental
Yiyi Zhao, Qianxia Li, Qingjie Cui, Shou-Qing Ni
Summary: This study constructed three organic substances supported DNRA systems in a membrane bioreactor and investigated the effect of different COD/N ratios on ammonium nitrogen transformation efficiency and microbial community diversity. The results showed that the ethanol-supported DNRA system at a COD/N ratio of 7.7 had the highest ammonium nitrogen transformation efficiency and nrfA gene abundance, and contained a large number of fermenting bacteria. In addition, potential metabolic pathways of three carbon sources were predicted.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Lingrui Kong, Yiming Feng, Jingqi Sun, Kaiyu Rong, Jianhang Zhou, Ru Zheng, Shouqing Ni, Sitong Liu
Summary: Co-cultivation of two algae taxa, Chlorella sp. and Phormidium sp., in photobioreactors showed a cooperative relationship with cross-feeding and resulted in higher protein production and nitrogen removal rate compared to individual cultures. The study highlights the importance of algal interspecies interaction in algae-based wastewater treatment.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Yiyi Zhao, Fang Yuan, Shaoyong Li, Jinpeng Zhang, Yuze Li, Xiang Shi, Jiachun Yang, Shou-Qing Ni, Sherif Ismail
Summary: This study explores the assembly mechanisms and co-occurrence patterns of DNRA microbial communities and the impact of nitrate reduction in Songhua River Basin. The results indicate that DNRA microbial communities are influenced by environmental factors and stochastic processes, with the Geobacteraceae playing a key role in DNRA and the overall bacterial community.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Zhibin Wang, Jinpeng Zhang, Jing Zhou, Sherif Ismail, Hafiz Adeel Ahmad, Hanem M. Awad, Ahmed Tawfik, Shou-Qing Ni
Summary: Laboratory-scale bioreactors were used to study the effect of dimethyl sulfoxide (DMSO) on the start-up, pollutant removal efficiency, and microbial community of nitrification. DMSO concentrations above 2% had a significant inhibitory effect on the nitrification process. The microbial community was significantly different at high DMSO concentrations, with key classes changing from Blastocatellia and Clostridia to Actinobacteria and Acidobacteria.
Article
Engineering, Environmental
Zhibin Wang, Cuina Bu, Jianghai Dou, Sherif Ismail, Shakeel Ahmad, Daqian Qi, Haiwei Wei, Xue Chen, Taeho Lee, Ahmed Tawfik, Shou-Qing Ni
Summary: In this study, an anammox coupled DNRA system was constructed to achieve efficient nitrate to ammonia conversion under high C/N ratio environment. DNRA bacteria were enriched and accounted for 20% of total bacteria population, while a small amount of anammox bacteria were detected. This study demonstrates the reproducibility of natural processes and provides insights into enhancing nitrogen removal rates.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Sherif Ismail, Mohamed Elsamadony, Mohnad Abdalla, Shou-Qing Ni, Ahmed Tawfik
Summary: This study investigated the synergistic impact of Tween 80 (T80) and reduced graphene oxide (RGO) on the codigestion process of food waste and biscuit wastewater. The T80/RGO-amended reactor showed a significant increase in hydrogen yield and enzyme activity, as well as stimulation of microbial community. Molecular docking analysis suggested potential interactions between T80, RGO, and hydrogenase protein as active site targets.
ACS ES&T ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Qing Yang, Shaoying Zhang, Shouqing Ni, Yongchao Lai, Jinhua Zhan
Summary: This study proposes a filtration-based SERS method for sensitive and selective analysis of consumer goods containing silver nanoparticles (AgNPs). By adding Raman probe molecules and using an iodide-modified silver nanowire membrane as a filter, AgNPs can be separated and enriched, and quantification can be achieved through a linear relationship between signal intensity and concentration. The method can detect and identify different types of AgNPs, and has been successfully applied to the detection of AgNPs in antibacterial products.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)
