Article
Green & Sustainable Science & Technology
Edward Wagner, K. G. Karthikeyan
Summary: Midwestern US agroecosystems are negatively impacted by excessive phosphorus (P) runoff from manure. This study developed a novel processing pipeline to precipitate struvite from dairy manure, removing organic solids and calcium (Ca) through dilution, acidification, and flocculation. The results showed a 93% reduction in dissolved P, indicating that a simple one-step removal of Ca and organic solids can achieve comparable P removal efficiency to multi-step methods.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Wenjing Bai, Rui Tang, Guangxue Wu, Wei Wang, Shoujun Yuan, Liwen Xiao, Xinmin Zhan, Zhen-Hu Hu
Summary: This study investigated the distribution of heavy metals in suspended solids (SS) and their influence on co-precipitation during struvite recovery from digested swine wastewater. The results showed that the concentration of heavy metals in the wastewater ranged from 0.05 to 17.05 mg/L. During struvite generation, 56.9-80.3% of individual heavy metals were co-precipitated. These findings provide a potential way for controlling the co-precipitation of heavy metals in struvite.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Thi-Hanh Ha, Nicolaus N. N. Mahasti, Ming-Chun Lu, Yao-Hui Huang
Summary: This study investigated the optimized conditions for treating swine wastewater and producing struvite crystals using swine slurry, commercial MgCl2, and seawater as magnesium sources. The results showed that swine slurry is a feasible alternative for nutrient recovery. Under the conditions of pH 9.0 and [P]0/ [Mg]0/ [N]0 M ratio = 1.2/1.0/1.0, the struvite precipitation process achieved high removal efficiencies for nitrogen, phosphorus, and magnesium. The harvested precipitate had a high struvite content with low heavy metal impurity, making it suitable for use as fertilizer.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Haomin Zheng, Fangyi Tang, Yunqin Lin, Zhiyong Xu, Zenghua Xie, Jun Tian
Summary: Solid-state anaerobic digestion (SSAD) is a key technology for utilizing agricultural waste. In this study, swine manure digested effluent (SMDE) was used to pretreat rice straw, resulting in improved biodegradability and methane production in the subsequent SSAD process. This integrated approach has the potential for large-scale trials and wide applications in the future.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Namita Talapatra, Uttam Kumar Ghosh
Summary: This paper presents an innovative process for converting food waste digestate into biofuel and investigates the effects of different doses of digestate on microalgae-activated sludge in treating pulp and paper mill wastewater. The study shows that adjusting the N:P molar ratio in the sludge by adding digestate can enhance biomass production and remove nitrogen, phosphorus, and COD from the wastewater. The process demonstrates the potential for a circular economy and biodiesel production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Olga Karnachuk, Igor I. Rusanov, Inna A. Panova, Mikhail A. Grigoriev, Viacheslav S. Zyusman, Elena A. Latygolets, Maksat K. Kadyrbaev, Eugeny Gruzdev, Alexey Beletsky, Andrey Mardanov, Nikolai Pimenov, Nikolai Ravin
Summary: The study found that H2S formation in agricultural waste relies on microbial sulfate reduction process, with Desulfovibrio being key players in H2S production. The use of sulfates in feed and gypsum may serve as sources of sulfate, while adopting low-sulfur diets, treating manure with iron salts, and avoiding gypsum bedding can help mitigate H2S emissions from pig manure.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Environmental
Wenjing Bai, Rui Tang, Guangxue Wu, Wei Wang, Shoujun Yuan, Liwen Xiao, Xinmin Zhan, Zhen-Hu Hu
Summary: Struvite recovered from wastewater contains significant amounts of fecal indicator bacteria, porcine adenoviruses, and antibiotic resistance genes, which can pose potential risks. This study investigated the co-precipitation behavior of these pathogens and genes with suspended solids (SS) and found that high-density SS contributed more to the co-precipitation than low-density SS. Furthermore, the presence of SS in struvite hindered the inactivation of bacteria and genes during drying. These findings suggest that removing high-density SS prior to struvite recovery can effectively control the co-precipitation and inactivation of pathogens and genes.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Sila Temizel-Sekeryan, Fan Wu, Andrea L. Hicks
Summary: This study evaluates the potential environmental impacts of recovering struvite from the liquid portion of anaerobically digested dairy cow manure in Wisconsin, USA. The results suggest a significant decrease in eutrophication potential can be achieved through struvite recovery. Additionally, differences in environmental impacts between bench- and farm-scale scenarios indicate the importance of evaluating treatment processes on a larger scale.
INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT
(2021)
Article
Agricultural Engineering
Guiyin Wang, Ruoqi Liu, Zhanbiao Yang, Wei Liu, Xiaoxun Xu, Shirong Zhang, Zhang Cheng, Guochun Lv, Changlian Xu, Junzhuo Cai, Zhien Pu
Summary: Magnetic magnesium-loaded Chinese herbal medicine residues (MM-TCMRs) were prepared for simultaneous removal and recovery of phosphate and ammonium from wastewater. The MM-TCMRs exhibited larger surface areas and rougher structures, and could be separated by adjusting a magnetic field. The adsorption of phosphate and ammonium by MM-TCMRs followed the pseudo-second-order model, with high maximum adsorption capacities. Furthermore, the MM-TCMRs were found to positively impact soil fertility and alfalfa growth.
BIORESOURCE TECHNOLOGY
(2024)
Article
Green & Sustainable Science & Technology
A. Chini, C. E. Hollas, A. C. Bolsan, F. G. Antes, H. Treichel, A. Kunz
Summary: Anaerobic digestion can convert organic matter into gases, but a high concentration of solids, undigested carbon, nitrogen, and phosphorus in the digestate from swine manure CSTR requires additional treatment. Solid-liquid separation strategies were tested, with centrifugation showing higher removal efficiencies for carbon, phosphorus, and solids, making it the most appropriate process for digestate treatment.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2021)
Article
Environmental Sciences
Saba Daneshgar, Daniele Cecconet, Doretta Capsoni, Andrea G. Capodaglio
Summary: Precipitation of mineral phosphates is an effective method for phosphorus recovery from wastewater. This study investigated the optimal operating parameters for phosphorus precipitation from aerobic wastewater liquor. It was found that solution pH had a significant effect on phosphorus precipitation, while the reactor's retention time did not. The use of calcium hydroxide for pH adjustment showed great potential for phosphorus recovery in the form of calcium phosphate-rich precipitates, with lower operating costs and higher energy sustainability compared to struvite precipitation.
Article
Environmental Sciences
Marcin Debowski, Magda Dudek, Anna Nowicka, Piera Quattrocelli, Joanna Kazimierowicz, Marcin Zielinski
Summary: The use of pre-digested milk-industry effluent to cultivate Tetraselmis subcordiformis has shown to be efficient in producing biomass and hydrogen. The addition of 25% and 50% effluent in the growth medium resulted in the highest production of biomass and over 60% hydrogen in the biogas. However, increasing the effluent to 75% led to a significant deterioration in performance.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Engineering, Chemical
Ki-Youn Kim
Summary: This study investigated the distribution characteristics of airborne bacteria emitted from swine manure composting plants and the concentration levels in different types of composting plants. Results showed that the screw type composting plant had the highest airborne bacteria concentration, followed by the natural dry type and rotary type, with the highest monthly concentration in August and lowest in November. The respirable size of airborne bacteria accounted for about 50% of the total, and no significant correlation was found between airborne bacteria and environmental factors in the composting plants.
Article
Engineering, Environmental
Kodanda Phani Raj Dandamudi, Tessa Murdock, Peter J. Lammers, Shuguang Deng, Elham H. Fini
Summary: The study explores the use of multiple feedstock sources to produce functionalized biochar with specific functional groups on its surface. By blending microalgae and swine manure, different biochar yields and properties were obtained for potential applications in construction and manufacturing. The presence of various functional groups on the biochar surface could enhance its role as a free-radical scavenger in these industries, highlighting the importance of developing unconventional uses for biochar in addressing biowaste challenges and promoting environmental sustainability through resource conservation and forest management.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Energy & Fuels
Stelgen Inkoua, Chao Li, Lijun Zhang, Xueli Li, Shu Zhang, Jun Xiang, Song Hu, Yi Wang, Xun Hu
Summary: Grapefruit peels and swine manure can be converted into carbonaceous materials through hydrothermal carbonization. This study investigated the influence of the liquid residual from swine manure on the properties of hydrochar and activated carbons derived from grapefruit peels. It was found that the organic compounds in the liquid reacted with hydrochar, resulting in higher yield and improved quality of hydrochar.
Article
Agricultural Engineering
Dabin Guo, Baihui Cui, Zhihua Chen, Wangwang Yan, Bin Ji, Qi Zhang, Yuhuan Liu, Shiyi Luo, Mian Hu, Roger Ruan
Summary: In this study, the addition of biomass to oxidized pellets was found to increase pore volume, promote CO ingress, enhance reduction rate, decrease activation energy, shorten reduction time, and reduce energy consumption. The findings highlight the potential environmental benefits of using biomass in combination with CO for pellet reduction.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Applied
Wei Zhou, Yunxia He, Fei Liu, Liangkun Liao, Xiaobing Huang, Ruyi Li, Ying Zou, Lei Zhou, Liqiang Zou, Yuhuan Liu, Roger Ruan, Jihua Li
Summary: This study successfully developed an active edible film based on CMCS and Pul, incorporated with GEO, which showed good physical properties and preservation effects on mango fruits, suitable for industrial application in fruit preservation.
CARBOHYDRATE POLYMERS
(2021)
Article
Energy & Fuels
Dongjie Chen, Shuhao Huo, Pengfei Cheng, Yanling Cheng, Nan Zhou, Paul Chen, Yunpu Wang, Kun Li, Peng Peng, Roger Ruan
Summary: The study found that a process combining catalytic intense pulsed light with microalgae cultivation can effectively treat wastewater containing acetophenone, degrading the toxic substance and promoting algae growth. The acetophenone level was reduced to 20 mg/L, with the highest biomass productivity reaching 0.094 g/L/d achieved after treatment.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2021)
Article
Agriculture, Multidisciplinary
Yiwei Ma, Yuwei Lu, Keith Petrofsky, Juer Liu, Yanling Cheng, Roger Ruan, Chi Chen
Summary: Functionalized wheat bran can enhance its health-promoting effects through special processing treatments, but may also have negative impacts such as affecting the bioavailability of essential amino acids and disrupting lipid homeostasis. Further studies are needed to achieve a balance between enhancing the bioactivities of wheat bran and maintaining nutrient bioavailability.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Review
Chemistry, Analytical
Dengle Duan, Danhong Chen, Liyin Huang, Yongchuan Zhang, Yayun Zhang, Qin Wang, Gengsheng Xiao, Weili Zhang, Hanwu Lei, Roger Ruan
Summary: Activated carbon (AC) is widely used in various important fields, and the conversion of renewable lignocellulosic biomass (LB) is an economical and environmentally friendly way to produce AC. This review summarizes the effects of various process parameters on AC production and discusses the properties and characteristics of AC derived from LB, as well as its application in fast catalytic pyrolysis processes. Comparisons of catalytic performance between LB-derived AC, commercial AC, and zeolite-based catalysts for upgrading bio-oil are also investigated in this study.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Chemistry, Analytical
Liangliang Fan, Zheyang Su, Jiabo Wu, Zhiguo Xiao, Pei Huang, Lei Liu, Haiwei Jiang, Wenguang Zhou, Shiyu Liu, Roger Ruan
Summary: A CSMP reactor coupled with an ex-situ catalytic bed was developed for the conversion of LLDPE to high-grade fuels. The addition of HZSM-5 catalyst led to the production of refined chemicals dominated by gasoline-range hydrocarbons. High selectivity of gasoline-range hydrocarbons was achieved at a catalyst-to-reactant ratio of 15% and feeding rate of 6 g/min. The pyrolysis processes yielded ethylene as the main gas product, while propylene and propane were the primary gas components with the addition of HZSM-5. The net energy gain increased with growing feeding rate from 6 g/min to 30 g/min.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Thermodynamics
Yongsheng Jia, Yingjie Wang, Qi Zhang, Hongwei Rong, Yuhuan Liu, Bo Xiao, Dabin Guo, Mahmood Laghari, Roger Ruan
Summary: This study investigates the relationship between particle size of sawdust and gas-carrying capacity, as well as its influence on combustion temperature. The results show that sawdust particles with a size of 150-180 μm have the best gas-carrying performance and highest combustion temperature.
Article
Thermodynamics
Dengle Duan, Zhiqiang Feng, Xiaoyong Dong, Xiaoru Chen, Yayun Zhang, Kun Wan, Yunpu Wang, Qin Wang, Gengsheng Xiao, Huifan Liu, Roger Ruan
Summary: Activated carbons derived from renewable chestnut shell were used as catalysts in converting LDPE into valuable chemicals and fuels. The study focused on the effects of activating reagent concentration, carbonization temperature, catalytic temperature, and catalyst loading on the production of target chemicals. The results showed that optimal conditions for high selectivity of aromatics and H-2 enrichment in the fuel gas could be achieved by controlling the specific parameters.
Article
Thermodynamics
Leilei Dai, Nan Zhou, Yuancai Lv, Kirk Cobb, Yanling Cheng, Yunpu Wang, Yuhuan Liu, Paul Chen, Rongge Zou, Hanwu Lei, Roger Ruan
Summary: This study introduces a novel technology for converting waste polyolefinic plastics into low aromatic naphtha for new plastic production, showcasing the use of tandem catalysis process. The tandem catalysis system shows high activity in cracking various waste polyolefins, highlighting the feasibility of upcycling waste plastics into high quality naphtha for virgin plastic products.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Analytical
Zihong Zeng, Xiaojie Tian, Yunpu Wang, Xian Cui, Qi Zhang, Leilei Dai, Yuhuan Liu, Rongge Zou, Jun Chen, Jiyan Liu, Roger Ruan
Summary: This study prepared an Fe-modified biochar catalyst for microwave catalysis pyrolysis of corn cobs, which promoted the production of phenolic compounds and showed good catalytic stability.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Review
Biochemistry & Molecular Biology
Chun Wang, Mei Qi, Jiameng Guo, Chengxu Zhou, Xiaojun Yan, Roger Ruan, Pengfei Cheng
Summary: This study summarizes the characteristics of phytohormones in microalgae and their regulatory effects on the accumulation of energy storage substances. Additionally, the addition of phytohormones can reduce production costs and improve the efficiency of biofuel utilization. Accurate and sensitive determination and analytical methods for phytohormones are crucial for plant hormone research.
Article
Environmental Sciences
Xiaodan Wu, Ni Hong, Qingjing Cen, Jiaxin Lu, Hui Wan, Wei Liu, Hongli Zheng, Roger Ruan, Kirk Cobb, Yuhuan Liu
Summary: Constructed wetlands are an environmentally friendly and economically efficient sewage treatment technology. This study tested several phosphate materials and found that hydroxyapatite, calcium phosphate, and physic acid sodium salt hydrate demonstrated high removal efficiency of heavy metals.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Review
Food Science & Technology
Jiameng Guo, Mei Qi, Hongyu Chen, Chengxu Zhou, Roger Ruan, Xiaojun Yan, Pengfei Cheng
Summary: Macroalgae, widely distributed in the marine environment, plays an important role in various fields such as food, medicine, and environmental remediation. They have the characteristics of easy accessibility, efficient carbon fixation, and absorption of nitrogen and phosphorus from wastewater, which allows them to produce abundant nutriments and bioactive substances beneficial for food production and medicine development.
Review
Food Science & Technology
Yingdan Zhu, Yueting Luan, Yingnan Zhao, Jiali Liu, Zhangqun Duan, Roger Ruan
Summary: The fruit and vegetable industry generates large amounts of residues, leading to significant economic losses. These residues contain bioactive substances with antioxidant, antibacterial, and other properties. Current technologies allow for the utilization of fruit and vegetable waste as ingredients, food bioactive compounds, and biofuels. Various extraction methods and biorefinery processes are employed for this purpose. This study provides strategies for eco-friendly processing of fruit and vegetable waste and lays the foundation for their sustainable utilization.
Article
Food Science & Technology
Juer Liu, Yuyang Yao, Yanling Cheng, Wei Hua, Xinyue Zhu, Qiming Miao, Guangwei Huang, Shengquan Mi, Roger Ruan
Summary: This study conducted an acute oral toxicity test using almond hull powders from three major almond varieties, and the results demonstrated that almond hull powders were non-toxic, even at high dosages, supporting their safety as an edible food ingredient.
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)
