Article
Agricultural Engineering
Shuohui Shi, Meng Cao, Ying Zhang, Xing Fan, Shihu Liu, Jiahao Chen, Jian Zhou
Summary: A thermal-alkali-biofilm pretreatment (TAB) was established to improve the anaerobic digestion of high-solid and low-organic-content sludge. TAB significantly enhanced WAS reduction, hydrolysis/acidogenesis efficiency, and biochemical methane potential by stimulating proteolysis and solubilizing WAS. In addition, biofilm assistance accelerated the elimination of autochthonous bacteria and promoted the enrichment of specialized fermentative microorganisms and relevant functional genes, contributing to enhanced hydrolysis/acidogenesis in TAB.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Ayesha Maryam, Zeshan, Malik Badshah, Mariam Sabeeh, Sher Jamal Khan
Summary: Anaerobic digestion of waste activated sludge can be significantly improved by alkaline, photocatalytic, and alkaline-photocatalytic pretreatments, resulting in increased methane production compared to untreated sludge.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Haixia Du, Yanxia Wu, Huifang Wu, Fusheng Li
Summary: The study found that ozone pretreatment significantly improved the decomposition efficiency of sludge and the hydrolysis and degradation effects of organic matter. For both aerobic and anaerobic digestion, ozone pretreatment altered the characteristics and composition of DOM.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(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.
Review
Agricultural Engineering
Xuran Liu, Dongbo Wang, Zhijie Chen, Wei Wei, Giorgio Mannina, Bing-Jie Ni
Summary: This paper reviews the presence and inhibition mechanisms of refractory substances in waste activated sludge (WAS) and comprehensively discusses the pretreatment strategies for enhancing WAS biodegradability by facilitating refractory substances conversion. Future research needs to focus on removing the hindering barrier of refractory substances on WAS biodegradability.
BIORESOURCE TECHNOLOGY
(2022)
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)
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
Engineering, Environmental
Hong-Yu Jin, Zhang-Wei He, Yong-Xiang Ren, Cong-Cong Tang, Ai-Juan Zhou, Fan Chen, Bin Liang, Wenzong Liu, Aijie Wang
Summary: This study investigated the effects of co-additive of biochar (BC) and nano-magnetite (NM) on anaerobic digestion and found that there were no synergistic effects. Methane production decreased by 24.7% and 38.3% in the simultaneous co-additive strategy, while it was slightly higher in the stepwise additive strategies compared to BC alone but lower than NM alone. Mechanism studies suggested that BC adsorbed soluble organics, reducing available substrates for methanogens.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Dexiu Hu, Nian Zhu, Yao Li, Yixin Yan, Cong Zhang
Summary: Phosphorus recovery is crucial for the world facing a shortage of phosphorus resources. Acid/alkali pretreatment of waste activated sludge can significantly improve iron reduction and vivianite formation, resulting in an increase in Fe-P content and vivianite crystal size.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Lei Zhang, Yiyang Yuan, Yingdi Zhang, Yang Liu
Summary: This study investigates the feasibility of using calcium hypochlorite (Ca(ClO)(2)) to improve the thermophilic digestion of anaerobic wasted activated sludge (WAS). The results show that Ca(ClO)(2) pretreatment significantly enhances the removal efficiency and methane yield of WAS under low organic loading rate (OLR) conditions. However, the pretreatment effect is not significant under high OLR conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
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
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
Environmental Sciences
Shu-Lin Wu, Wei Wei, Bing-Jie Ni
Summary: A novel sludge pretreatment technology using calcium hypochlorite (Ca(ClO)2) to enhance methane production from waste activated sludge (WAS) anaerobic digestion was reported. The results showed that appropriate doses of Ca(ClO)2 significantly increased the solubilization of WAS and methane production, while negatively affecting the microbial community composition and inhibiting microbial processes related to methane production.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Junguo He, Fei Wu, Yijie Zhong, Pengfei Zhang, Xiang Zou, Xinlei Pan, Jie Zhang
Summary: This study found that magnetite promotes the degradation of soluble protein and soluble polysaccharide, leading to an increase in methane production during the anaerobic digestion of waste activated sludge. The presence of magnetite also stimulates the growth of electroactive bacteria and enhances the pathway of hydrogenotrophic methanogenesis.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Heliang Pang, Qiangqiang Jiao, Junguo He, Zhiqiang Zhang, Ling Wang, Zhongsen Yan, Jinsuo Lu
Summary: This study investigates the use of alkaline hydrolase blend (AHB) incubation at initial pH 10.0 condition for enhancing anaerobic fermentation in waste activated sludge management. The results show that this method significantly increased the release of short-chain fatty acids (SCFAs) and promoted the hydrolysis and biodegradation of dissolved organic matters. The AHB-based strategy proves to be a cost-effective and carbon-beneficial technology for sludge management.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Neha Chandel, Vishal Ahuja, Ranjit Gurav, Vinod Kumar, Vinay Kumar Tyagi, Arivalagan Pugazhendhi, Gopalakrishnan Kumar, Deepak Kumar, Yung-Hun Yang, Shashi Kant Bhatia
Summary: The demand for antibiotics and pharmaceutical products is increasing globally, leading to pollution of aquatic systems. Microalgae have been widely used for micropollutant removal in the past decade. Bioadsorption, degradation, and accumulation are the main mechanisms involved in pollutant removal by microalgae. Integration of microalgae-mediated pollutant removal with other technologies can make this technology more economical and efficient.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Energy & Fuels
Monika Yadav, Venkatesh Balan, Sunita Varjani, Vinay Kumar Tyagi, Gaurav Chaudhary, Nidhi Pareek, Vivekanand Vivekanand
Summary: Converting biogenic waste to biogas through anaerobic digestion is a sustainable and environmentally friendly way of fuel production. Pretreatment methods are essential to overcome the recalcitrance of biomass and increase enzymatic efficiency. Biological pretreatment is desirable but longer duration needs to be addressed.
BIOENERGY RESEARCH
(2023)
Article
Thermodynamics
Phurba Tamang, Vinay Kumar Tyagi, Neelam Gunjyal, Ali Mohammad Rahmani, Rajesh Singh, Pradeep Kumar, Banafsha Ahmed, Pooja Tyagi, Rajesh Banu, Sunita Varjani, A. A. Kazmi
Summary: This study presents a novel free nitrous acid (FNA) pretreatment to enhance the biomethanation of wheat straw. The results showed that FNA pretreatment can effectively improve the biogas yield from wheat straw, and even co-digestion could achieve enhanced biogas yield over mono-digestion.
Article
Environmental Sciences
Ali Mohammad Rahmani, Vinay Kumar Tyagi, Neelam Gunjyal, A. A. Kazmi, Chandra Shekhar P. Ojha, Konstantinos Moustakas
Summary: This study investigated the effects of hydrothermal and thermal-alkaline pretreatment on anaerobic co-digestion of wheat straw. The results showed that thermal-alkali pretreatment can increase substrate solubilization and biogas yield, while reducing the formation of recalcitrant compounds.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
J. Rajesh Banu, S. Kavitha, R. Yukesh Kannah, J. Jayakodi, Gopalakrishnan Kumar, Vinay Kumar Tyagi, Shashi Kant Bhatia
Summary: The study investigates the possibility of enhancing biomass solubilization and economic output through a combinatorial pretreatment, which combines the use of a surfactant (sodium dodecyl sulfate) with a mechanical pretreatment induced by a disperser. The results show that this combinatorial pretreatment reduces energy input and improves solubilization and methane production, leading to higher net profit compared to the conventional disperser-mediated disintegration process.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Agricultural Engineering
J. Rajesh Banu, S. Kavitha, Yukesh Kannah Ravi, Vinay Kumar Tyagi, Gopalakrishnan Kumar
Summary: This study aimed to pretreat the waste activated sludge (WAS) by combining sodium citrate with ultrasonic pretreatment in an energy efficient way. The COD solubilization and biomethane yield were significantly increased in the combined treatment compared to individual ultrasonic pretreatment. Future research on the continuous mode anaerobic digestion of the combined treatment is crucial.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Anwar Khursheed, Faris Mohammad A. Munshi, Abdulaziz Ibrahim Almohana, Abdulrhman Fahmi Alali, Mohab Amin Kamal, Shamshad Alam, Omar Alrehaili, Dar Tafazul Islam, Manish Kumar, Sunita Varjani, A. A. Kazmi, Vinay Kumar Tyagi
Summary: The reappearance of assimilated nitrogen and phosphorus in any biological process is a challenge to nutrient removal. A novel reactor configuration combining an anaerobic reactor and Anaerobic-Anoxic-Aerobic (A2O) SBR was tested for enhanced sludge and phosphorus removal. The reactor operated at low SRT for phosphorus assimilative uptake and resulted in a significant increase in phosphorus enrichment. However, the sludge reduction also occurred during the process. The success of the configuration lies in reconciling conflicting parameters of enhanced phosphorus uptake and sludge growth.
Article
Environmental Sciences
Sandeep Singh, Meenakshi Rawat, Sandeep K. Malyan, Rajesh Singh, Vinay Kumar Tyagi, Kaptan Singh, Sujata Kashyap, Sumant Kumar, Manish Sharma, B. K. Panday, R. P. Pandey
Summary: The use of pesticides has greatly contributed to global agricultural production, but their unregulated use poses a threat to water resources and human health. Pesticides can contaminate groundwater and surface waters, leading to acute or chronic toxicity and adverse environmental effects. It is crucial to monitor and remove pesticides from water resources as a global priority.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Sachin Prajapati, Runumi Gogoi, Vinay Kumar Tyagi, Meenu Talwar, Manmohan Kumar, C. V. Chaudhari
Summary: The effects of gamma irradiation on the shape memory, thermal, and mechanical properties of polycaprolactone (PCL) were investigated in this study. Triallylisocyanurate (TAIC) was used as a crosslinker. It was found that gamma irradiation introduced crosslinking in PCL, which influenced its shape memory and mechanical properties. The gel content analysis showed that a gel content of up to 50% was achieved with a radiation dose of 50 kGy. The incorporation of crosslinking through irradiation resulted in shape memory property and shape recovery of up to 95% was observed with a radiation dose of 25 kGy. Thermal analysis and XRD analysis revealed no significant change in melting and crystallization temperature, as well as the integrity of the crystallized domains of PCL after irradiation. The mechanical properties, including tensile strength and Young's modulus, increased with irradiation, while elongation decreased. The findings suggest that gamma irradiation in combination with TAIC can effectively tailor the shape memory, thermal, and mechanical properties of polycaprolactone for various applications.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Review
Environmental Sciences
Pallavi Gahlot, Kelly D. Alley, Sudipti Arora, Sukanya Das, Aditi Nag, Vinay Kumar Tyagi
Summary: Wastewater-based surveillance can serve as an early warning system for COVID-19 outbreaks by detecting viral load in sewage before clinical verification. It helps track transmission dynamics, protect human health, and mitigate socio-economic losses. Challenges include underdeveloped sewerage infrastructure and lack of uniform protocols for viral detection in developing nations.
WILEY INTERDISCIPLINARY REVIEWS-WATER
(2023)
Article
Environmental Sciences
Sandeep Singh, Sandeep K. Malyan, Chinmay Maithani, Sujata Kashyap, Vinay Kumar Tyagi, Rajesh Singh, Sarthak Malhotra, Manish Sharma, Amit Kumar, Bijay K. Panday, R. P. Pandey
Summary: Landfills can lead to microplastic pollution as plastic waste degrades and releases microplastics into the surrounding environment, contaminating soil and water. This paper provides a comprehensive review of the degradation process of macroplastics into microplastics, the types of microplastics in landfill leachate, and the potential toxicity of microplastic pollution. Various treatment methods, including chemical precipitation and filtration, can effectively remove microplastics from wastewater. Continuous monitoring and effective removal of microplastics from landfill leachate are important to protect human and environmental health.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
V GodvinSharmila, Surya Prakash Shanmugavel, Vinay Kumar Tyagi, J. Rajesh Banu
Summary: A large amount of plastic waste is generated globally, with most of it being dumped in landfills instead of being properly disposed. This practice poses environmental hazards as the plastic waste breaks down into microplastics, and the landfill leachate acts as a source of these microplastics. The presence of microplastics in leachate increases the risk to human and environmental health due to their dangerous pollutants and antibiotic resistance genes. Developing innovative treatment facilities is crucial to address this issue, and further research is needed for complete solutions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Banafsha Ahmed, Pallavi Gahlot, Gowtham Balasundaram, Vinay Kumar Tyagi, J. Rajesh Banu, Vivekanand Vivekanand, A. A. Kazmi
Summary: This study investigated the semi-continuous anaerobic co-digestion of organic fraction of municipal solid waste and sewage sludge. The results showed that thermal-alkali pretreatment yielded higher methane production and organic removal compared to thermal pretreatment and control. Energy balance analysis revealed that thermal-alkali pretreatment also had the highest positive energy balance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Ganesh Sude, Ankur Rajpal, Vinay Kumar Tyagi, Kapil Sharma, Pravin Kumar Mutiyar, B. K. Panday, R. P. Pandey, Absar Ahmad Kazmi
Summary: Dewatered sludges from Indian sewage treatment facilities were analyzed for their characteristics and categorized based on their fertilizing potential, toxicity level, pathogen presence, and vector attraction reduction criteria. The sludge samples were found to contain toxic metals and pathogens, classifying them as Class C and lower. However, they also showed a potential for fertilization. Further treatment methods such as composting, aerobic or anaerobic digestion, and solar or thermal drying could improve the quality of the sludge.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Nagarjuna Kandagatla, Bella Kunnoth, Pilli Sridhar, Vinay Tyagi, P. V. Rao, R. D. Tyagi
Summary: Rice is a primary food staple in many countries due to its nutritional value. However, the increasing rice demand in India has resulted in inadequate treatment of rice mill effluent (RME), causing severe damage to soil and water. This review provides an inclusive examination of various methods for RME treatment and discusses the application of the circular economy concept in this field.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(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)
