Article
Engineering, Environmental
Lu Dong, Zhiping Qi, Mengqi Li, Yan Zhang, Yingrun Chen, Yuanfeng Qi, Haiming Wu
Summary: The study found that constructed wetlands can effectively treat synthetic wastewater, but are less effective in treating real swine wastewater, with different substrates showing varied outcomes in the removal of organics and nutrients.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Microbiology
Zhihui Chen, Yunhua Xiao, Tan Liu, Mingmin Yuan, Gang Liu, Jun Fang, Bo Yang
Summary: In this study, six microalgal strains were evaluated for their nutrient removal and biodiesel production potential in anaerobically treated swine wastewater. Two selected strains, Chlorella vulgaris FACHB-8 and Chlorella sp. FACHB-31, showed good performance in removing nitrogen, phosphorus, and ammonia nitrogen, as well as producing significant amounts of lipids. The fatty acid profiles of these strains mainly consisted of C-16:0, C-18:1, C-18:0, and C-18:2.
Article
Environmental Sciences
William Michelon, Alexandre Matthiensen, Aline Viancelli, Gislaine Fongaro, Vanessa Gressler, Hugo Moreira Soares
Summary: Phycoremediation is an effective method for treating swine wastewater, as it removes contaminants and produces valuable biomass. This research found that phycoremediation can degrade tetracycline antibiotics in swine wastewater and produce carbohydrate-rich microalgae biomass, which can be used for bioenergy conversion.
ENVIRONMENTAL RESEARCH
(2022)
Article
Agricultural Engineering
Tongtong Zhou, Jiangong Liu, Zhiyang Lie, Derrick Y. F. Lai
Summary: This study investigated the effects of different carbon substrates on the treatment efficiency of hydroponic wastewater using vertical flow constructed wetlands. The addition of sucrose and common reed litter improved the removal of nitrogen and phosphate, and the common reed litter also reduced the emission of greenhouse gases.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Mingxiang Qv, Dian Dai, Dongyang Liu, Qirui Wu, Chunming Tang, Shuangxi Li, Liandong Zhu
Summary: In this study, a microalgae-bacteria symbiosis (ABS) system was developed for pollutants removal by co-culturing Chlorella sorokiniana with activated sludge, and the interaction mechanism was investigated. The ABS system achieved almost complete removal of ammonia nitrogen, with removal efficiencies of 65.3% for total nitrogen and 42.6% for total phosphorus. Brevundimonas greatly promoted microalgal biomass growth and microalgae contributed to the increase in the abundance of Dokdonella and Thermomonas, facilitating nitrogen removal. The study also identified key extracellular polymeric substances for the formation of flocs by microalgae and activated sludge.
BIORESOURCE TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Mayerlin Sandoval-Herazo, Georgina Martinez-Resendiz, Eduardo Fernandez Echeverria, Gregorio Fernandez-Lambert, Luis Carlos Sandoval Herazo
Summary: This study evaluated the aboveground and belowground biomass production of Typha latifolia and Canna hybrids in a large-scale constructed wetland treating swine wastewater. The results showed that the vegetation can adapt to high concentrations of pollutants and help significantly reduce the concentrations of pollutants in tropical areas. Wetlands constructed as tertiary systems for the treatment of swine wastewater are effective in producing plant biomass that aids in pollutant reduction.
FERMENTATION-BASEL
(2021)
Review
Engineering, Environmental
Shengnan Li, Wenying Qu, Haixing Chang, Junfeng Li, Shih-Hsin Ho
Summary: This review discusses the microalgae-driven strategy for swine wastewater treatment, focusing on the removal mechanisms of pollutants and pathogenic bacteria, as well as the characteristics of bacterial and microalgal communities. The review also introduces the effects of various parameters on microalgal growth and the current challenges in the biotreatment process. Integration of bacterial and microalgal ecology information into the design of swine wastewater treatment systems is emphasized.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Carlos Sauco, Raul Cano, David Marin, Enrique Lara, Frank Rogalla, Zouhayr Arbib
Summary: The study compared a conventional wastewater treatment plant and a hybrid alternative treatment plant for real urban wastewater from the city of Almeria, Spain. The hybrid system showed higher removal efficiencies for COD, TN, TP, and TSS, as well as high disinfection rates for total coliforms and E.Coli. Additionally, the energy demand of the hybrid system was significantly lower than that of a conventional activated sludge plant.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Yuru Wang, Zhenxin Shang, Wei Lan, Shuang Liang, Xinsheng Kang, Zhen Hu
Summary: This study used peat and intermittent aeration to enhance nitrogen removal efficiency in magnesia-containing constructed wetlands, resulting in improved plant growth and microbial abundance, and reduced global warming potential.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Daniela Montano San Agustin, Maria Teresa Orta Ledesma, Ignacio Monje Ramirez, Isaura Yanez Noguez, Victor Manuel Luna Pabello, Sharon B. Velasquez-Orta
Summary: This study explores the development of a non-sterile heterotrophic microalgae process for treating wastewater with high organic matter concentration, using Scenedesmus sp. Urban and swine wastewaters were utilized as organic carbon sources, with a C:N ratio of 3.4:1 leading to significantly high biomass concentrations achieved. The heterotrophic growth showed promise in organic matter removal and biomass production, likely due to the microalgae-bacteria association.
Article
Green & Sustainable Science & Technology
Qian Wang, Jiewei Ding, Huijun Xie, Derek Hao, Yuanda Du, Congcong Zhao, Fei Xu, Qiang Kong, Baoshan Wang
Summary: The study found that using intertidal wetland sediments as a microbial source for CWs can effectively improve phosphorus removal rates, with bacteria such as phosphorus-accumulating organisms enhancing microbial transformation of phosphorus. However, the addition of IWS increased phosphorus loss via substrate accumulation and decreased phosphorus removal rate via plant uptake.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Sining Zhou, Shengjun Xu, Yishuai Jiang, Cancan Jiang, Danhua Wang, Guanglian Xu, Dongmin Yang, Shanghua Wu, Zhihui Bai, Guoqiang Zhuang, Xuliang Zhuang
Summary: This study successfully established the nitrite pathway and improved nitrogen removal efficiency in constructed wetlands by using free nitrous acid-sediment treatment and Myriophyllum aquaticum vegetation. The integration of FNA-sediment treatment with M. aquaticum vegetation in CWs significantly enhanced nitrite and nitrous oxide reduction, while decreasing nitrate reduction, leading to higher removal efficiencies compared to conventional systems. The findings suggest that applying FNA-based technology in CW systems is a feasible approach for upgrading swine wastewater treatment to meet future water quality requirements.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Luong N. Nguyen, Lisa Aditya, Hang P. Vu, Abu Hasan Johir, Lucia Bennar, Peter Ralph, Ngoc B. Hoang, Jakub Zdarta, Long D. Nghiem
Summary: Algae cultivation for wastewater treatment is gaining more attention due to its ability to recover nutrients and capture CO2 in the circular economy concept. However, there are technical and economic challenges in implementing algae-based wastewater treatment due to the complexity of wastewater and algal ecological characteristics. The use of phototrophic algae in this process faces challenges in supplying CO2 and illumination. Future research should focus on improving algae growth rate, environmental tolerance, and downstream processing, as well as analyzing biomass for carbon credit assessment and economic values.
CURRENT POLLUTION REPORTS
(2022)
Article
Environmental Sciences
Baiming Ren, Tongyue Wang, Yaqian Zhao
Summary: A newly developed alum sludge-based hybrid constructed wetland-microbial fuel cell system was used for swine wastewater treatment and electricity generation. The system showed high removal efficiency and power generation, with the first stage playing a major role in both pollutant removal and electricity production.
Review
Environmental Sciences
Hengfeng Zhang, Xiaochang C. Wang, Yucong Zheng, Mawuli Dzakpasu
Summary: This review provides an overview of the use of constructed wetlands (CWs) for the removal of pharmaceutical active compounds (PhACs) from water environments. The results demonstrate that CWs perform equally or better than conventional wastewater treatment plants in eliminating PhACs, and highlight the importance of system design, operation, and environmental factors in this process. However, further research is required to address issues such as the behavior of emerging contaminants, identification of specific microorganisms, transformation pathways of pharmaceuticals, and the ecotoxicity evaluation of CWs effluents.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Zimo Lou, Ludi Song, Weiqi Liu, Shaohua Wu, Feng He, Jianming Yu
Summary: Mechanochemical treatment using calcium oxide (CaO) and peroxydisulfate (PDS) as co-milling agents has been developed for the degradation of halogenated organic pollutants (HOPs). This study investigates the role of CaO in activating PDS and the mechanism of PDS activation in solid phase reactions. The results show that CaO-PDS co-milling agent significantly enhances the degradation and dechlorination of 2,4-dichlorophenol (2,4-DCP) compared to CaO or PDS alone. CaO shifts the degradation pathway into dechlorination and ring-open routes, increasing the mineralization efficiency. The study also reveals that CaO activates PDS mainly through electron transfer and base activation. The CaO-PDS co-milling agent shows high reactivity in destructing persistent HOPs. The findings of this study have important implications for the safe disposal of obsolete HOPs.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Shaohua Wu, Chunping Yang, Yan Lin, Jay J. Cheng
Summary: The study thoroughly examined the degradation of tetracycline (TC) in the constructed Co-N/C-PMS system, finding that the removal rate of TC reached 85.4% when Co-N/C and PMS were added simultaneously, with a higher degradation rate compared to using Co-N/C or PMS alone. The system was identified as a singlet oxygen-dominated nonradical reaction, providing a promising approach for eliminating TC in water treatment.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2022)
Article
Engineering, Environmental
Yue Wang, Yan Lin, Chunping Yang, Shaohua Wu, Xintao Fu, Xiang Li
Summary: This study reports the regulation of non-radical pathways in peroxymonosulfate (PMS) activation by carbon catalysts doped with iron and nitrogen. The calcination temperature of the catalysts is found to play a crucial role in switching the non-radical activation routes and enhancing the catalytic activity. The study provides a facile strategy for regulating PMS non-radical pathways for the treatment of complicated wastewater.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Wenkai Nie, Yan Lin, Xin Wu, Shaohua Wu, Xiang Li, Jay J. Cheng, Chunping Yang
Summary: In this study, chitosan-Fe3O4 was prepared and its effects on anaerobic digestion processes under acid stress were investigated. The results revealed that chitosan-Fe3O4 significantly increased the methanogenesis rate and accelerated the restoration of acidified anaerobic systems. The analysis of sludge characteristics indicated that chitosan-Fe3O4 promoted the secretion of proteins and humic substances, and enhanced the electron transfer activity of the system. Microbial community analysis showed that chitosan-Fe3O4 enriched the abundance of Peptoclostridium and facilitated direct interspecies electron transfer. These findings suggest that chitosan-Fe3O4 can be used to improve the efficiency of anaerobic digestion of high concentration organic wastewater under acid inhibition conditions.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Hailan Yang, Rongliang Qiu, Yetao Tang, Shujing Ye, Shaohua Wu, Fanzhi Qin, Ling Xiang, Xiaofei Tan, Guangming Zeng, Ming Yan
Summary: Residual flotation reagents in mineral processing wastewater can pose severe ecological threats when discharged untreated. Metal-free biochar-induced persulfate-advanced oxidation processes (KCBC/PS) efficiently degrade aniline aerofloat (AAF) at low doses of catalyst and oxidant. The dominant reactive oxygen species in the KCBC/PS system is O-2(center dot-), which achieves deep mineralization of AAF. The electron transfer mechanism and active sites play important roles in the KCBC/PS system, allowing for wide pH adaptation and resistance to inorganic anions in real mining wastewater treatment. Carbonyl group is the active site for the non-radical pathway of biochar, while the conversion of SO4 center dot- to superoxide radicals represents a defect. The study also reveals a possible degradation pathway of AAF and its reduced environmental toxicity.
Article
Agricultural Engineering
Zhiwei Huang, Qiuya Niu, Wenkai Nie, Yan Lin, Shaohua Wu, Xiang Li, Jay J. Cheng, Chunping Yang
Summary: The high concentrations of antibiotics in swine wastewater may have potential adverse effects on anaerobic digestion (AD). Previous studies focused on the effects of antibiotic concentrations but did not consider the fluctuation of swine wastewater quality and reactor operating conditions in practical engineering applications. This study found that continuous addition of oxytetracycline for 30 days had no effect on AD performance in systems with COD of 3300 mg/L and HRT of 4.4 days. However, when COD and HRT were changed to 4950 mg/L and 1.5 days respectively, oxytetracycline at different concentrations had varying effects on methane yield and cell membrane.
BIORESOURCE TECHNOLOGY
(2023)
Review
Engineering, Environmental
Xin Wu, Yan Lin, Yongyi Wang, Shaohua Wu, Chunping Yang
Summary: This article comprehensively reviews the application and performance issues of biofiltration in the removal of volatile organic compounds (VOCs) from waste gas streams. The removal performance of VOCs in biofiltration can be improved by adjusting the properties of VOCs and the design and operating parameters of biofilters. Prevailing problems in biofilters, such as uneven biomass and VOC load distribution, unsatisfactory removal at high organic loads and hydrophobicity, and inconsistent interactions among multicomponent VOCs, are summarized and discussed. Solutions for these problems are proposed and commented on. This review can serve as a reference for future investigations and applications of biofiltration.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Shaohua Wu, Zhongwen Yang, Ziyang Zhou, Xiang Li, Yan Lin, Jay J. Cheng, Chunping Yang
Summary: Single-atom catalysts with different metal centers anchored on nitrogen-doped carbons were constructed for peroxymonosulfate (PMS) activation. The catalytic activity order is Fe > Co > undoped N/C > Cu > Mn, with Fe-N/C and Co-N/C showing significantly higher degradation rates of model pollutants compared to undoped N/C. Singlet oxygen (O-1(2)) was identified as the main oxidant responsible for pollutant degradation, and FeN4 was found to be more conducive to O-1(2) generation than CoN4.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Yun Luo, Xiang Li, Yan Lin, Shaohua Wu, Jay J. Cheng, Chunping Yang
Summary: Chlorella culturing has been proven advantageous for wastewater treatment, including swine wastewater from anaerobic digesters, due to its ability to produce biolipids and absorb carbon dioxide. However, high concentrations of antibiotics and heavy metals in swine wastewater can be toxic to Chlorella and the biological systems. This study examined the effects of cupric ion and oxytetracycline (OTC) at different concentrations on the nutrient removal and biomass growth of Chlorella vulgaris in swine wastewater. Results showed that OTC did not limit Chlorella's growth and actually mitigated the toxicity of cupric ion. The study also analyzed the biochemical responses of Chlorella in the presence of these stressors, providing insights into the mechanisms of stress and offering a novel strategy for improving the stability of microalgae systems in wastewater treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
Caiyu Luo, Yan Lin, Yupei Zhang, Shuai Zhang, Shehua Tong, Shaohua Wu, Chunping Yang
Summary: In this study, a novel MOF-545/Ag3PO4 composite catalyst was synthesized and showed improved performance in degrading oxytetracycline (OTC) in swine wastewater. The catalyst exhibited stronger photoresponse and charge separation ability compared to Ag3PO4, resulting in complete OTC degradation within 3.0 min. This research is significant in terms of environmental and human health implications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Shehua Tong, Yan Lin, Shuai Zhang, Jinlin Nie, Caiyu Luo, Yupei Zhang, Shaohua Wu, Chunping Yang
Summary: This study optimized the photoactivity of Ag3PO4 by introducing doped carbon nanosheets (NBNS), achieving 100% degradation of norfloxacin in antibiotics wastewater. The intense interface interaction between Ag3PO4 and NBNS was demonstrated, along with the construction of a built-in electric field for rapid charge separation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Chenxi Huang, Meifang Li, Ping Wang, Shiyu Song, Beixia Chai, Meijuan Zhang, Xinjiang Hu, Jingju Cai, Shaohua Wu, Qingyun He
Summary: A novel nitrogen-doped magnetic graphene oxide confined Fe-Co dual single-atom catalyst was prepared by one-step molten salt assisted high-temperature pyrolysis. The catalyst showed significant removal efficiency for tetracycline and exhibited good separation and catalytic performance. The effects of key parameters on the degradation of tetracycline were investigated, and the catalytic potential in actual water and regeneration performance of the material were evaluated.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Engineering, Environmental
Yue Wang, Yan Lin, Shanying He, Shaohua Wu, Chunping Yang
Summary: This paper provides a systematic discussion on the properties, generation, and detection methods of singlet oxygen (1O2), as well as reviewing the controversies in catalytic systems. The applications of 1O2 in environmental remediation are discussed, including the degradation of pollutants in water and atmosphere, disinfection of drinking water, gas/solid sterilization, and self-cleaning of filter membranes. The paper also highlights future opportunities and challenges in utilizing 1O2 for environmental protection.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Xintao Fu, Yan Lin, Chunping Yang, Shaohua Wu, Yue Wang, Xiang Li
Summary: This study investigated the application of cobalt phosphide nanoparticles confined in nitrogen-doped porous carbon for the degradation of sulfamethoxazole in high-salinity wastewater. The results showed that the catalyst could achieve 100% degradation with optimal phosphorus doping amount. The catalyst also exhibited high adaptability to wide pH variations and various concentrations of inorganic salt. Active species of sulfate radical and singlet oxygen were identified, which dominated the degradation process.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(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)
