Article
Agricultural Engineering
Yufen Wang, Kaixin Zheng, Haixiao Guo, Yindong Tong, Tingting Zhu, Yiwen Liu
Summary: This study revealed that vivianite significantly inhibits anaerobic digestion of waste activated sludge, leading to a decrease in methane yield, an increase in substrate remaining, and an impact on microbial communities.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Guangyi Zhang, Yinghao Shi, Wanxue Chen, Ming Dou, Zisheng Zhao, Xiaowei Wang, Tingting Zhang
Summary: The study proposed a new strategy to minimize the inhibition of CaO2 reaction residues by adding zero-valent iron (ZVI) to the pretreated sludge, which significantly improved methane production and sludge reduction. Mechanism analysis indicated that ZVI enhanced the activities of the electron transport system (ETS) and coenzyme F420 to reduce the inhibition to methanogens caused by high concentrations of ammonia. Microbial community analysis also showed that ZVI effectively improved the abundance of hydrogenotrophic methanogens.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agricultural Engineering
Mengyu Yin, Hongbo Chen
Summary: Chitosan plays a positive role in anaerobic digestion of waste activated sludge, enhancing methane production potential and promoting sludge agglomeration through various mechanisms, ultimately contributing to the gasification process.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Cong-Cong Tang, Bao-Cai Zhang, Xing-Ye Yao, Ai-Juan Zhou, Wenzong Liu, Yong-Xiang Ren, Zhihua Li, Aijie Wang, Zhang-Wei He
Summary: This study investigated the response mechanisms of anaerobic digestion of waste activated sludge to different particle sizes of zeolite. It was found that zeolite with a particle size of 0.2-0.5 mm and an additive dosage of 0.1 g/g VSS increased methane production by 22.08% compared to the control. Mechanism study revealed that zeolite improved the hydrolysis, acidification, and methanogenesis stages, leading to the enhanced consumption of soluble polysaccharides and proteins, increased accumulation of short-chain fatty acids, optimized composition of short-chain fatty acids, increased activity of F420, and promoted syntrophic metabolism between bacteria and methanogens.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Kaihao Hou, Xi Luo, Muxiang Liang, Xiaoming Liu, Qi Xu, Jing Chen, Xiejuan Lu, Xiaohui Wu, Feixiang Zan
Summary: Waste activated sludge pretreatment with sulfite and heat can effectively improve sludge hydrolysis rate and methane production. By combining sulfite and heat pretreatment, soluble substances and methane production can be significantly enhanced. The HESP method shows promise in enhancing methane production and promoting methanogenic metabolism, but further experimentation is needed for specific conditions.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Engineering, Environmental
Mingting Du, Xuran Liu, Dongbo Wang, Qi Yang, Abing Duan, Hong Chen, Yiwen Liu, Qilin Wang, Bing-Jie Ni
Summary: This study delves into the degradation of capsaicin in anaerobic co-digestion, revealing that capsaicin inhibits methane production and affects the activity of anaerobic microbes, particularly impacting hydrolysis, acidogenesis, and methanogenesis.
Article
Green & Sustainable Science & Technology
Yuqi Wu, Kang Song
Summary: The study on anaerobic co-digestion of waste activated sludge and fish waste showed that adding 1.5% and 3% of fish waste could enhance methane production, while adding more than 6% inhibited methane production severely. Microbial community analysis revealed dominance of hydrogenotrophic and methylotrophic methanogenesis pathways during anaerobic co-digestion.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Zhiren Cao, Xiaoding Huang, You Wu, Dongbo Wang, Wenjie Du, Jiamin Zhang, Qi Yang, Zhe Kuang, Zhuo Chen, Xiaoming Li
Summary: This study investigated the effect of AHTN on waste activated sludge anaerobic digestion, finding that AHTN can enhance methane production up to a certain concentration, but decrease it when reaching a certain threshold. Additionally, AHTN can facilitate the utilization of volatile fatty acids, with a degradation efficiency of 42.7%. Mechanism investigation showed that AHTN can promote solubilization, fermentation, and methanogenesis processes, leading to increased methane production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Hongbo Chen, Mengge Tang, Xiao Yang, Yiu Fai Tsang, Yanxin Wu, Dongbo Wang, Yaoyu Zhou
Summary: The study identifies the key role of Polyamide 6 (PA6) microplastics in enhancing methane production during anaerobic digestion, with a significant increase in methane production due to the presence of caprolactam (CPL). PA6 has a less toxic effect compared to other microplastics on waste activated sludge (WAS) anaerobic digestion, and it promotes key enzyme activities leading to increased methane production potential and volatile solids destruction.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Qiuxiang Xu, Tian-Yi Luo, Ruo-Lan Wu, Wei Wei, Jing Sun, Xiaohu Dai, Bing-Jie Ni
Summary: The study demonstrates that rhamnolipid (RL) pretreatment has a promoting effect on methane production in two-phase anaerobic digestion of waste activated sludge, although methane production may be inhibited in the presence of RL during the acidogenic phase. Further analysis shows that the addition of RL can increase methane production throughout the entire two-phase anaerobic digestion process.
Article
Agricultural Engineering
Ruiliang Zhang, Xueqin Lu, Yujie Tan, Teng Cai, Yule Han, Dilibaierkezi Kudisi, Chengxin Niu, Zhongyi Zhang, Wanjiang Li, Guangyin Zhen
Summary: The study demonstrated that DMC/PDS activation can effectively enhance sludge solubilization and methane production by degrading organic biopolymers and accelerating electron transfer of microorganisms. Ultimately, this pretreatment has a significant impact on improving anaerobic bioconversion of sludge.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Huan Liu, Xuan Li, Zehao Zhang, Long D. Nghiem, Qilin Wang
Summary: Urine pretreatment is an effective strategy to improve methane production in anaerobic digestion of waste activated sludge, with significant increases in methane production, degradation extent, and hydrolysis rate.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Chinmay Deheri, Saroj Kumar Acharya
Summary: Anaerobic co-digestion of food waste, cow dung, and sludge solution was experimentally evaluated for hydrogen and methane production with the addition of calcium peroxide (CaO2) and sodium hydroxide (NaOH). The study found that using NaOH increased biogas generation by 17% and methane concentration by 10%, while the addition of CaO2 improved hydrogen concentration by 7% and cumulative hydrogen yield by 37%. The production of hydrogen was significantly enhanced by CaO2, while methane generation was influenced by NaOH.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agricultural Engineering
Yu Qin, Jingnan Yang, Yanxin Wu, Dongbo Wang, Xuran Liu, Mingting Du, Dandan He, Neng Yi
Summary: This study found that allyl isothiocyanate (AITC) from cruciferous vegetables can be completely degraded by microorganisms during anaerobic co-digestion, serving as a substrate for methane production. Increasing AITC concentration led to decreased methane production and prolonged digestion time. AITC also induced cell apoptosis by modifying cell membrane properties, inhibiting the anaerobic co-digestion process.
BIORESOURCE TECHNOLOGY
(2022)
Article
Thermodynamics
Archana Kasinath, Hubert Bylinski, Wojciech Artichowicz, Anna Remiszewska-Skwarek, Malgorzata Szopinska, Ewa Zaborowska, Aneta Luczkiewicz, Sylwia Fudala-Ksiazek
Summary: This study investigated the effect of low-temperature pretreatment on the efficiency of anaerobic digestion of waste activated sludge (WAS). The results showed that low-temperature pretreatment increased methane production and improved energy performance. AD of pretreated WAS achieved a positive net energy balance.
Review
Engineering, Environmental
Xuan Li, Shuxin Zhang, Samendrdra Sherchan, Gorka Orive, Unax Lertxundi, Eiji Haramoto, Ryo Honda, Manish Kumar, Sudipti Arora, Masaaki Kitajima, Guangming Jiang
Summary: Wastewater-based epidemiology (WBE) is a promising approach for monitoring COVID-19, but the correlation between CRNA and clinically confirmed cases varies and the impacts of environmental and other factors are unclear. This study analyzed the correlation between CRNA and different types of clinically confirmed case numbers. It found a stronger correlation between CRNA and new cases, influenced by environmental and epidemiological conditions as well as sampling design.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Engineering, Environmental
Ting Zhou, Zehao Zhang, Huan Liu, Shiman Dong, Long D. Nghiem, Li Gao, Alex V. Chaves, Arash Zamyadi, Xuan Li, Qilin Wang
Summary: This review summarizes the occurrence, classification, emission sources, and environmental risk of pharmaceutical compounds in aqueous environments. The efficiency, mechanisms, and influencing factors for the removal of pharmaceutical compounds through microalgae-based technology are further discussed. Microalgae-based technology can mainly remove pharmaceutical compounds through bioadsorption, bioaccumulation, biodegradation, and photodegradation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Le Gao, Wanqing Ding, Jingjing Xi, Shuhong Gao, Xu Zhou, Yidi Chen, Kang Song, Xinrui Mao, Renjie Tu, Guangming Jiang
Summary: This study investigated the impact mechanism of pollutants on the biochemical compositions of microalgae. The results showed that the growth of Scenedesmus obliquus was optimal at an N/P ratio of 18, with highest dry weight, lipid production, and chlorophyll-a accumulation. Proteomic analysis revealed enhanced metabolic activities, protein up-regulation, and strengthened lipid metabolism and fatty acid synthesis pathways.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Engineering, Environmental
Huan Liu, Xuan Li, Ting Zhou, Zehao Zhang, Long D. Nghiem, Li Gao, Qilin Wang
Summary: This study comprehensively evaluated the impact of free ammonia (FA) pretreatment on the performance of anaerobic primary sludge (PS) digestion using semi-continuous systems. FA pretreatment improved the removal of volatile solids, chemical oxygen demand, and methane production. It also increased the biomass-specific hydrolysis rate of digesters. Model-based analysis revealed that the enhanced performance is due to the increased apparent hydrolysis rate and degradability extent of PS caused by FA pretreatment. Additionally, dewaterability of digested sludge and removals of fecal coliform and E. coli were enhanced by FA pretreatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Zhiqiang Zuo, Yan Chen, Yaxin Xing, Siqi Li, Shaolin Yang, Guangming Jiang, Tao Liu, Min Zheng, Xia Huang, Yanchen Liu
Summary: A stable nitrification process was developed in a two-stage bioreactor, successfully converting half of the ammonium in high-strength urine into nitrate, forming valuable ammonium nitrate solution with full nutrient recovery. This method could reduce energy input by 43%, greenhouse gas emission by 40%, and cost by 33% compared to conventional wastewater management.
Review
Environmental Sciences
Ying Guo, Yanchen Liu, Shuhong Gao, Xu Zhou, Muttucumaru Sivakumar, Guangming Jiang
Summary: The analysis of SARS-CoV-2 gene copy numbers in wastewater can provide information on COVID-19 cases. This study reviewed the literature to identify the effects of temperature and water types on coronavirus decay and conducted a sensitivity analysis to evaluate the importance of virus decay. The research found that wastewater temperature and dilution can significantly impact virus decay.
Article
Agricultural Engineering
Xinrui Mao, Xu Zhou, Xiumin Fan, Wenbiao Jin, Jingjing Xi, Renjie Tu, Mu. Naushad, Xuan Li, Huan Liu, Qilin Wang
Summary: This study investigated the effects of different nitrogen to phosphorus ratios on the growth, biochemical compositions, and metabolic regulation mechanism of C. pyrenoidosa in mixed sewage. The results showed that an N/P ratio of 18 was optimal, with the highest dry weight, chlorophyll-a, and lipid production, but the lowest protein production. Proteomic analysis revealed the involvement of 62 different expression proteins in fatty acid and lipid biosynthesis metabolism, amino acid biosynthesis metabolism, photosynthesis, carbon fixation, and central carbon metabolism.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Chemical
Hao Liu, Chen Wang, Weonjung Sohn, Qilin Wang, Ho Kyong Shon, Peizhe Sun
Summary: Human urine, traditionally considered as unwanted in wastewater treatment plants, is now receiving increasing attention for its potential as a valuable resource for urine-based fertilizer production. This review focuses on evaluating the performance of forward osmosis (FO) membrane technology for urine treatment in terms of water and nutrients recovery. The fertilizer driven forward osmosis (FDFO) approach is found to consume less energy and produce higher value products compared to other urine treatment technologies. However, to remove micropollutants, FDFO should be coupled with Advanced Oxidation Processes (AOPs). The combination of FO and membrane distillation (MD) shows great potential for completely recovering nutrients and water from human urine. Challenges and limitations of urine-based FO applications are discussed, along with future perspectives on developing high performance FO membranes and environmentally friendly draw solutions. A comprehensive life-cycle impact assessment is necessary before large-scale application.
Review
Chemistry, Multidisciplinary
Zhenyao Wang, Xuan Li, Muhammad Ahmar Siddiqui, Huan Liu, Ting Zhou, Lei Zheng, Siyu Huang, Li Gao, Carol Sze Ki Lin, Qilin Wang
Summary: Anaerobic digestion is a promising technology for energy recovery from secondary sludge, but the presence of humic substances in wastewater limits its efficiency. Strategies such as removing humic substances, pretreatment of sludge, and adding metal salts, enzymes, and microorganisms can counteract these negative effects and improve anaerobic digestion.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Review
Engineering, Environmental
Xiaotong Cen, Jiuling Li, Guangming Jiang, Min Zheng
Summary: Chemical dosing is commonly used in urban sewer systems for sulfide and methane abatement, but traditional methods have drawbacks. This paper reviews the current chemicals used and progress in sustainable abatement technology, including bio-inhibitors, in situ chemical production, and effective dosing strategies. To enhance cost-effectiveness, two research directions have emerged: online control and optimization of dosing strategies, and integrated use of chemicals in sewer and wastewater treatment systems. Further development and comprehensive studies are needed.
Review
Engineering, Environmental
Jibin Li, Xuan Li, Huan Liu, Li Gao, Weitong Wang, Zhenyao Wang, Ting Zhou, Qilin Wang
Summary: Wastewater infrastructures are crucial for society, but climate change poses a serious threat to them. Despite the lack of a comprehensive summary, we conducted a systematic review and developed an adaptation strategy for decision-making in cities to cope with climate change. Current studies mainly focus on higher-income countries and sewer systems, while major challenges for sewer systems are overflow, breakage, and corrosion, and for wastewater treatment plants are inundation and fluctuation of treatment performance. The typological adaptation strategy provides a simple guideline for vulnerable wastewater facilities in cities with different income levels to adapt to climate change.
Article
Multidisciplinary Sciences
Xuan Li, Huan Liu, Li Gao, Samendra P. Sherchan, Ting Zhou, Stuart J. Khan, Mark C. M. van Loosdrecht, Qilin Wang
Summary: Although the COVID-19 emergency status is easing, the pandemic still affects healthcare systems globally. The use of wastewater-based epidemiology has been shown to accurately predict COVID-19-induced hospital admissions, providing early warnings for healthcare systems. This study demonstrates the potential of wastewater-based epidemiology as an effective method for predicting disease occurrence.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Zhongqi He, Xiumin Fan, Wenbiao Jin, Shuhong Gao, Bowen Yan, Chuan Chen, Wanqing Ding, Shiyu Yin, Xu Zhou, Huan Liu, Xuan Li, Qilin Wang
Summary: With the growth of cities and population, the demand for drinking water is increasing. Chlorine is commonly used for disinfection in drinking water plants, but some bacteria can still survive even in high chlorine concentration, posing a significant risk to water safety. This review investigates the origin and species of chlorine-resistant bacteria in drinking water networks, as well as identification methods and current inactivation techniques. The research on ozone-based and other methods for inactivation of chlorine-resistant bacteria is highlighted.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Environmental Sciences
Shiyu Yin, Le Gao, Xiumin Fan, Shuhong Gao, Xu Zhou, Wenbiao Jin, Zhongqi He, Qilin Wang
Summary: This review discusses the impact of sludge treatment on antibiotic resistant genes (ARGs), highlighting the risks of ARGs in sludge. It also explores the effects of co-existing constituents on sludge and ARGs during treatment, as well as the abundances of ARGs after different sludge treatment methods. The review emphasizes the need for technical and management measures to mitigate the risks associated with the transmission of ARGs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Engineering, Environmental
Xuli Meng, Xuan Li, Long D. Nghiem, Mohammad Rafe Hatshan, Ka Leung Lam, Qilin Wang
Summary: This research evaluates the effectiveness of site realtime adaptive control (SRAC) technology in urban stormwater management, and finds that the SRAC-WSUD method reliably reduces stormwater pollutants and enhances the performance and resilience of existing systems without additional infrastructure upgrades.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
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)