Article
Environmental Sciences
Danilo S. G. Lucio, Maria Eduarda S. Dias, Rogers Ribeiro, Giovana Tommaso
Summary: The dairy industry produces large amounts of wastewater with high levels of organic matter and nutrients, requiring external carbon sources for denitrification. A structured-bed hybrid baffled reactor (SBHBR) was designed to treat dairy wastewaters and promote sustainable nitrogen removal. The SBHBR achieved COD removal efficiencies above 90% and nitrification and denitrification efficiencies of 85.9 ± 17% and 85.2 ± 9% respectively. Stoichiometric calculations confirmed the activity of bacteria capable of performing anammox pathways as the main mechanisms for nitrogen removal.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Andres Pichel, Andrea Fra, Nicolas Morales, Jose Luis Campos, Ramon Mendez, Anuska Mosquera-Corral, Angeles Val del Rio
Summary: This study demonstrates that despite the higher sCOD/N ratios in OFMSW digestate, good synergy can be achieved through AS pre-treatment in the PN-AMX process, resulting in better effluent quality and lower nitrogen removal rates.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Hyungmin Choi, Jinsu Kim, Jihun Park, Changsoo Lee
Summary: Even small fluctuations in wastewater's organic matter significantly affect the structure and function of anammox microbial communities. Continuous organic load at 30 mg COD/L improved nitrogen removal efficiency without compromising anammox performance. Higher levels of continuous organic load caused inhibition of anammox activity, while transient organic load's inhibitory effect was fully reversed within one day. Loading an appropriately low amount of organic matter can improve the nitrogen removal performance of anammox granular sludge without sacrificing anammox activity and granule stability under mainstream conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Natalia Carolina Silveira, Guilherme Henrique Duarte Oliveira, Marcia Helena Rissato Zamariolli Damianovic, Eugenio Foresti
Summary: The PN/A process is a viable technology for nitrogen removal from wastewaters with high concentrations of ammonia, but its application in processing slaughterhouse byproducts wastewater has not been assessed. An increase in nitrogen loading rate did not significantly affect the removal efficiency of total nitrogen. Presence of organic matter promoted the growth of heterotrophic denitrifying bacteria while impairing the growth of Anammox bacteria.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Shenbin Cao, Yu Lan, Rui Du, Yongzhen Peng
Summary: This study investigated the influence of relatively high COD/NO3--N ratios on nitrite production in Partial Denitrification (PD) systems. It was found that a high nitrite production could still be obtained even with an increased COD/NO3--N ratio, but with a longer reaction time, the nitrite production decreased. However, after reducing the influent COD/NO3--N to a normal level, high nitrite production was rapidly achieved. The study demonstrated the robustness and stability of acetate-driven PD in response to high COD/NO3--N.
Review
Environmental Sciences
Shenbin Cao, Rui Du, Yan Zhou
Summary: This study reviews the strategies to establish a competition balance between anammox and denitrification processes by analyzing the kinetics of anammox and denitrifying microorganisms, discussing the favorable conditions in establishing the coupled process, and evaluating the system recovery approaches. Additionally, the dynamics of the microbial communities in response to the organic matters are also presented.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Xiaoshuang Lai, Xuegang Li, Jinming Song, Huamao Yuan, Liqin Duan, Ning Li, Yingxia Wang
Summary: Organic matter plays a critical role in regulating microbial nitrogen loss pathways in marine ecosystems. This study reveals that organic-rich muddy sediments have higher nitrogen loss rates and anammox rates compared to sandy sediments in the coastal continental shelf of the East China Sea. The community distribution and abundance of denitrifying bacteria and anammox bacteria are intricately influenced by organic matter.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
Li Zhang, Shiwei Hao, Yueping Wang, Shuang Lan, Quanhao Dou, Yongzhen Peng
Summary: This study investigated the fast start-up of Partial denitrification (PD) by analyzing the microbially driven mechanism of nitrite accumulation mediated by Dissolved organic matter (DOM). The strategy of feeding lower nitrate concentration and removing the idle period resulted in a high nitrite transformation ratio and effluent nitrate removal within 17 days. Enhanced nitrite accumulation was linked to decreased utilization of aliphatic DOM during nitrite reduction process.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Jing Zhang, Yong-zhen Peng, Lin-hua Zhang, Jun Li, Jia Wei, Zhao-ming Zheng, Kai Zhang
Summary: This study investigated the effects of DS-EPSCN on the properties of Anammox granules under extreme acid or alkaline shock. The results showed that DS-EPSCN significantly improved nitrogen removal performance under extreme acid shock, attributed to the increase in high-molecular-weight substances. Additionally, DS-EPSCN promoted granule activity but had no influence on granule stability under extreme alkaline shock.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Yue Zhou, Chao Wang, Xiaochen Xu, Wenyao Jin, Lifen Liu, Fangang Meng, Fenglin Yang
Summary: This study experimentally investigated the partial denitrification function of companion bacteria in mixotrophic anammox systems. The results revealed the presence of partial denitrifying bacteria, including Denitratisoma and Norank Xanthobacteraceae, in the mixotrophic anammox systems. The study also found that the abundance of nir genes in the mixotrophic anammox system significantly increased compared to the autotrophic anammox system, while the abundance of nor genes decreased significantly, suggesting that NO may be used as a medium for cross-feeding anammox and partial denitrification.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Yufeng Zheng, Youliang Zhang, Ni An, Liangliang Shi, Yan Wei, Bin Ma
Summary: Granule-based partial denitrification and anammox (PDA) process is influenced by microbial community. It was found that the nitrogen conversion rate is affected by granule size through microbial composition. The abundance of anammox bacteria increased with particle size, while the abundance of denitrifiers decreased and then increased. The microbial composition also affected nitrogen removal and nitrite accumulation in the granules.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Aomei Guan, Weixiao Qi, Qiang Peng, Jiemin Zhou, Yaohui Bai, Jiuhui Qu
Summary: The study revealed that the antibiotic sulfamethoxazole has complex effects on nitrogen reduction processes in aquatic ecosystems, altering the activities of denitrification, anammox, and dissimilatory nitrate reduction to ammonium under different environmental conditions, leading to a shift in nitrogen conversion direction.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Song Li, Robert R. Twilley
Summary: Nitrate enrichment in rivers may alter nitrogen cycling in coastal ecosystems, with direct denitrification being a dominant process in inundated sediments. The importance of denitrification, DNRA, and anammox varied with organic matter concentrations, indicating the complex dynamics of nitrogen processing in coastal deltaic floodplains.
ESTUARIES AND COASTS
(2021)
Article
Agricultural Engineering
Eli Hendrik Sanjaya, Yujie Chen, Yan Guo, Jiang Wu, Hong Chen, Mohd Fadhil Md Din, Yu-You Li
Summary: The study successfully implemented the SNADCO method in an air-lift moving bed biofilm reactor for treating digested fish processing wastewater, showing advantages in handling high ammonia concentration and organic compounds. The nitritation and anammox route were predominant in nitrogen removal, while COD oxidation and microbe proliferation played the main role in COD removal.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Jiarui Fan, Rui Du, Qingtao Liu, Cong Li, Yongzhen Peng
Summary: Microbial interactions between Anammox and heterotrophic bacteria were analyzed in this study. The study found that the proportion of Anammox microorganisms varied in different granule sizes and heterotrophs could stimulate Anammox activity through organic carbon. The results indicate that efficient nitrogen removal can be achieved by regulating the distribution of sludge size and organic carbon source.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Fu-ang Duan, Juan Wang, Sherif Ismail, Shihwu Sung, Zhaojie Cui, Shou-Qing Ni
Summary: This study demonstrates that modified aerobic granular sludge with hydroxypropyl-beta-cyclodextrin significantly improved the removal efficiency of specific PAHs. Factors such as initial concentration, temperature, and ion concentration were found to influence the removal process.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Environmental Sciences
Tong Zhang, Xuming Zhuang, Shakeel Ahmad, Taeho Lee, Chengbo Cao, Shou-Qing Ni
Summary: This study investigated the role of dissimilatory nitrate reduction to ammonium (DNRA) in the stability of urban river networks and marine ecosystems. The research identified a significant positive correlation between DNRA rate and sediment organic carbon, with Anaeromyxobacter as the dominant genus and both heterotrophic and autotrophic DNRA species present. It added diversity to urban freshwater river ecosystem studies and provided new insights into the biological nitrogen cycle of typical urban inland rivers in eastern China.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
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
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
Zheng Guo, Hafiz Adeel Ahmad, Yuhe Tian, Qingyu Zhao, Ming Zeng, Nan Wu, Linlin Hao, Jiaqi Liang, Shou-Qing Ni
Summary: This study analyzed the effects of graphene oxide (GO) and reduced graphene oxide (RGO) on anammox and found that different concentrations of graphene oxide have different impacts on the anammox process. 100 mg/L of GO significantly promoted anammox, while 200 mg/L of GO inhibited the process. The promotion effect of RGO was temperature-dependent, and RGO showed a more significant positive correlation with nitrogen removal efficiency and specific anammox activity. Spearman correlation analysis also revealed a positive correlation between the addition of graphene oxides and the abundance of Planctomycetes and Nitrospirae.
Article
Environmental Sciences
Zhibin Wang, Pengpeng Liu, Jing Zhou, Sherif Ismail, Shakeel Ahmad, Hanem M. M. Awad, Shou-Qing Ni
Summary: This study used biomagnetic effect to promote anammox process. Batch tests and long-term experiments showed that an appropriate electromagnetic field (EMF) strength can improve the nitrogen removal performance of anammox, but higher strengths can inhibit the activity of anammox bacteria. The addition of EMF with an appropriate strength greatly improved the nitrogen removal performance of granular sludge. The study also found that EMF addition can increase the relative abundance of the main anammox bacteria.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(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
Environmental Sciences
Zhibin Wang, Hafiz Adeel Ahmad, Zhao-Jie Teng, Meiling Sun, Sherif Ismail, Zhuangming Qiao, Shou-Qing Ni
Summary: Similar to denitrification and anammox, DNRA is widely distributed in natural ecosystems, but often underestimated or ignored in WWTPs. A study on a full-scale SNAD WWTP revealed the coexistence of ammonia oxidizing bacteria, anammox bacteria, nitrite oxidizing bacteria, denitrifying bacteria, and DNRA organisms, with a higher relative abundance of the DNRA functional gene. The unintended selection of DNRA in the SNAD process created an engineering inefficiency of nitrogen removal by utilizing carbon that should be allocated for denitrification.
Article
Environmental Sciences
Jianyuan Zhen, Yiyi Zhao, Xuefeng Yu, Wenshan Guo, Zhuangming Qiao, Sherif Ismail, Shou-Qing Ni
Summary: The combination of partial nitrification, nitrite-denitrifying phosphorus removal, and simultaneous nitrification-endogenous denitrification showed high efficiencies in COD, nitrogen, and phosphorus removal. It provided an economic and technical alternative for treating wastewater with high levels of C, N, and P, reducing costs and carbon demand.
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)
