Article
Agricultural Engineering
Yajie Tian, Jianzheng Li, Yiyang Fan, Jiuling Li, Jia Meng
Summary: A novel combined SBR-UMSR process was developed to treat manure-free piggery wastewater with low COD/TN ratio and high NH4+-N by removing COD in the front-end SBR and practicing anammox in the back-end UMSR for TN and NH4+-N removal. After 230 days of operation, the removal efficiencies of COD, TN, and NH4+-N reached 78.41%, 85.05%, and 92.21% in the combined SBR-UMSR process, with partial nitrification - anammox process identified as the dominant nitrogen removal approach in the UMSR.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Zhenju Sun, Jianzheng Li, Yiyang Fan, Jia Meng, Kaiwen Deng
Summary: High ammonium and low COD/TN ratio in piggery wastewater are identified as the primary pollution source leading to water eutrophication. An improved internal aerating microaerobic reactor (IAMR) showed efficient removal of COD, NH4+-N, and TN. The microbial community's increased oxidative stress tolerance contributed to enhanced nutrient removal efficiency.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Yajie Tian, Jianzheng Li, Lianggang Tang, Jia Meng, Jiuling Li
Summary: The combined SBR-UMSR process is efficient in removing antibiotics from pig farm wastewater, with high removal rates for sulfonamides and tetracyclines. However, the removal rate for fluoroquinolones is low due to their refractory properties. The study also provides valuable insights into the mechanism of antibiotic removal in biological processes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agronomy
Ambar Cerda, Macarena Gonzalez, Carolina Rodriguez, Jennyfer Serrano, Eduardo Leiva
Summary: The excessive deposition of ammonium in the environment has negative impacts on biodiversity and ecosystem eutrophication. Anthropogenic sources are responsible for the majority of terrestrial reactive nitrogen, contributing to 45% of the total annual production on Earth. The Feammox process, a biological method that anaerobically metabolizes ammonium, coupled with hollow fiber membrane bioreactors (HFMBs), shows promise for the removal of ammonium from agriculturally derived wastewater. This study evaluated the formation of Feammox bacterial biofilms and demonstrated their efficiency in ammonium removal, providing valuable insights for scaling up the HFMBs process.
Article
Environmental Sciences
Zixuan Liang, Hongbo Han, Jing Yi, Xiaohu Dai
Summary: The high-concentration powder carrier bio-fluidized bed (HPB) process can improve the nitrogen removal efficiency of low-C/N wastewater. Diatomite carrier increases the relative abundance of autotrophic N-cycle bacteria, thereby increasing the nitrogen removal contribution, while Fe-C carrier mainly improves nitrogen removal efficiency by enhancing biodegradability, electron transfer system, and key enzyme activities. The key device of the HPB process improves carrier recovery efficiency and enhances the microbial aggregations' capacity for pollutant adsorption.
Article
Green & Sustainable Science & Technology
Samunya Sanguanpak, Anucha Wannagon, Chitsuphang Saengam, Wilai Chiemchaisri, Chart Chiemchaisri
Summary: This research investigates the applicability of porous metakaolin-based geopolymer granules as an adsorbent to removal ammonium in aqueous solution and anaerobically pretreated piggery wastewater. The 15 wt% foamed geopolymer provided highest ammonium removal efficiencies and was adopted as the granular adsorbent. The results demonstrated high selectivity toward ammonium ion of the porous geopolymer granules even with the presence of organic compounds and competing ions.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agricultural Engineering
Hongliang Guo, Tongyuan He, Jo-Shu Chang, Peng Liu, Duu-Jong Lee
Summary: This study proposed and tested a novel process for wastewater treatment, which utilizes nitrite generated by Sharon reactions and sulfide from sulfur-reducing reactions to promote denitrification and denitrifying sulfide removal. The results showed that this process efficiently removes nitrate under different C/N ratios, and the functional strains corresponding to critical reactions were identified.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Wei Huang, Jian Zhou, Xuejie He, Lei He, Ziyuan Lin, Shuohui Shi, Jiong Zhou
Summary: The SAIC system showed enhanced TN and TP removal efficiencies compared to the reference, with denitrification driven by intracellular carbon contributing significantly to TN elimination and phosphorus mainly removed through biological routes. The synergy of multiple metabolic pathways, including anammox, (partial) nitrification, endogenous (partial) denitrification, and biological P-removal, was observed in the SAIC system, supported by the commensalism of various microbial groups.
BIORESOURCE TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Ausra Mazeikiene, Julita Sarko
Summary: After biological wastewater treatment, ammonium nitrogen, nitrate nitrogen, and phosphate phosphorus still remain in the effluent. By using selected materials as filter media, these wastewater compounds can be further removed. The tested materials are effective in treating nitrogen and phosphorus in wastewater without causing pollution.
Article
Environmental Sciences
YuanYuan Peng, Shengbing He, Fei Wu
Summary: Iron-based materials play a critical role in the biological removal process of nitrogen and phosphorus, which may improve the potentiality of their applications in biological technology. The efficiency of iron-mediated nitrogen removal is closely related to factors such as iron dosage and the addition of electron shuttles. Combining iron with other materials can enhance the removal efficiency of composite materials.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Changli Liang, Nali Zhang, Yu Pang, Siyuan Li, Jiafan Shang, Yipeng Zhang, Zhenzhong Kuang, Junhe Liu, Hua Fei
Summary: The discharge of livestock wastewater without treatment is harmful to the environment and human health. This study investigated the cultivation of Spirulina platensis using piggery wastewater, showing that it is a feasible solution for the production of biomass and removal of nutrients from wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Lianfang Zhao, Liuying Xue, Li Wang, Cheng Liu, Ying Li
Summary: Heterotrophic-autotrophic denitrification is a cost-effective and risk-reducing approach for wastewater treatment. This study investigated a mixotrophic denitrification system with mixed bacteria to treat low-C/N ratio wastewater and achieved lower total nitrogen (TN) levels compared to heterotrophic and ferrous autotrophic systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Huihui Cui, Liang Zhang, Qiong Zhang, Xiyao Li, Yongzhen Peng
Summary: This study found that comammox bacteria, which were previously overlooked, are the most important ammonia-oxidizing microbes in Anammox systems, and play a significant role in nitrogen removal.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Kaiyao Hu, Wenxuan Li, Yaning Wang, Bo Wang, Hao Mu, Shuang Ren, Kexin Zeng, Hongjuan Zhu, Jinming Liang, Ya'e Wang, Juqiang Xiao
Summary: Wastewater with a low carbon to nitrogen ratio (C/N) contains insufficient organic carbon sources, resulting in incomplete removal of nitrogen (N) and phosphorus (P) during denitrification and anaerobic phosphorus release processes. N and P pollutants in water bodies pose a serious threat to sustainable development, human health, and water ecosystems. Therefore, the development of energy-saving, efficient, and sustainable N and P removal technologies is of great significance.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Hong-cheng Wang, Ying Liu, Yu-meng Yang, Ying-ke Fang, Shuang Luo, Hao-yi Cheng, Ai-jie Wang
Summary: Constructed wetlands integrated with sulfur autotrophic denitrification using elemental sulfur as the carbon source have the potential to efficiently remove nitrogen from carbon-limited wastewater. The sulfur autotrophic denitrification process in the SCW enhances nitrate removal efficiency and rate. The combined CW-SCW system allows for simultaneous removal of total ammonia nitrogen and nitrate.
Review
Biotechnology & Applied Microbiology
Milad Ferdowsi, Bahman Khabiri, Gerardo Buelna, J. Peter Jones, Michele Heitz
Summary: This review discusses the simultaneous removal of multiple pollutants in biofilters, which has been extensively studied in the past decade. The interactions between pollutants make the removal more complicated as the number of pollutants in a mixture increases. Strategies are recommended to improve the performance of biofilters treating mixtures.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2023)
Article
Environmental Sciences
Tianlun Han, Kang Zhou, Jiuling Li, Ting Chen, Xueting Xu, Shuai Zhang, Jianying Chao, Ming Kong
Summary: This study investigated the differences in dynamic distribution characteristics of P compounds and N elements in Lake Jiaogang, a major water-carrying lake in eastern China. The results revealed the impact of different pollutant sources and aquatic plant types on their distribution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agricultural Engineering
Yajie Tian, Jianzheng Li, Jia Meng, Jiuling Li
Summary: By optimizing fermentation conditions, five yeasts were selected to ferment potato starch processing wastewater, resulting in the production of high-value single-cell protein. This has the potential to combat protein scarcity and the unsustainable production of plant and animal proteins.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yajie Tian, Jianzheng Li, Lianggang Tang, Jia Meng, Jiuling Li
Summary: The combined SBR-UMSR process is efficient in removing antibiotics from pig farm wastewater, with high removal rates for sulfonamides and tetracyclines. However, the removal rate for fluoroquinolones is low due to their refractory properties. The study also provides valuable insights into the mechanism of antibiotic removal in biological processes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Liu Wenbin, Li Jianzheng, Li Jiuling, Zheng Min, Meng Jia
Summary: PN/A is an energy- and carbon-saving process for nitrogen removal from organic deficient wastewater. In this study, a novel process coupling PN/A with iron-based denitrification was proposed to efficiently remove nitrogen and phosphorus in a single reactor. The experimental results showed significantly high removal efficiencies of organic carbon, nitrogen, and phosphorus in the experimental system compared with the control system. The total nitrogen removal achieved 90.1% and the total phosphorus removal reached 80.2%.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Zhetai Hu, Weiwei Li, Haoran Duan, Xin Huang, Jia Meng, Liangzhen Yang, Min Zheng
Summary: This study proposed an integrated approach to efficiently recover phosphorus (P) as vivianite from waste activated sludge (WAS) and simultaneously enhance sludge dewaterability. Acidification and Fe3+ reduction were conducted to convert Fe and P from solid phase to liquid phase. Acid-elutriation technology was then introduced to enhance liquor-solid separation. Finally, vivianite was obtained via sludge eluate neutralization. The enhanced sludge dewaterability not only increases the recovery efficiency of Fe and P but also decreases the cost of sludge disposal.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Yafei Zhang, Jianzheng Li, Yang-chun Yong, Zhen Fang, Han Yan, Jiuling Li, Jia Meng
Summary: In this study, a novel cathodic electro-fermentation system mediated by methyl viologen was used to achieve selective and high-yield butanol production. The addition of butyric acid as a co-substrate further improved the production and selectivity of butanol. This approach holds great promise for cost-effective bio-butanol production.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Wenbin Liu, Jianzheng Li, Lianggang Tang, Jiuling Li, Min Zheng, Jia Meng
Summary: This study develops and demonstrates a novel integration of anammox with zero-valent iron (Fe-0) for efficient wastewater treatment. The process not only enhances phosphorus removal and sludge granulation but also combines microbial iron-based denitrification for high-level nitrogen removal. The integrated laboratory system achieves superior nitrogen and phosphorus removal, with stable total nitrogen removal efficiency of 97.4 +/- 1.6% and phosphorus removal above 90%.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Jianzheng Li, Qiyi Chen, Yiyang Fan, Furao Wang, Jia Meng
Summary: This study investigated the effect of cobalt (Co) on two-phase anaerobic digestion (AD) and revealed the enhanced mechanism. The activity of methanogens was significantly affected by Co2+, with an optimal concentration of 2.0 mg/L. Ethylenediamine-N'-disuccinic acid (EDDS) was found to be the most effective in improving Co bioavailability and increasing methane production. By supplementing with Co-EDDS, the levels of Vitamin B12 (VB12) and coenzyme F420 increased, leading to the enrichment of Methanofollis and Methanosarcina and successfully improving methane production and recovery from ammonium and acid wastewater treatment.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Ying Cui, Bowei Zhao, Xiao Zhang, Xiao Ma, Aijuan Zhou, Sufang Wang, Xiuping Yue, Jianzheng Li, Jia Meng
Summary: Using wastepaper as an external carbon source is an alternative method for total nitrogen removal in low carbon to nitrogen ratio municipal sewage. Previous studies focused on separate denitrification units using cellulose-rich wastes for in-situ fermentation, but this approach can lead to blockages and prolonged process chains. In this study, a novel in-situ fermentation wastepaper-flora slow-release carbon source (IF-WF) was proposed and applied in the original denitrification unit. IF-WF was efficiently utilized in situ, with denitrification rate increasing with nitrate nitrogen concentration. However, internal acidification of IF-WF inhibited fermentation, and it also limited the growth of polysaccharides in denitrified sludge. IF-WF ultimately formed a structure dominated by nitrate-reduction bacteria outside and cellulose-degrading bacteria inside. These findings provide insights into the mechanism of IF-WF for in-situ fermentation and nitrogen removal.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Jiuling Li, Nur Nabilah Naina Mohamad, Keshab Sharma, Zhiguo Yuan
Summary: Establishing efficient boundary conditions is crucial for modeling heat transfer in sewers and recovering heat from wastewater. This study presents a novel approach using Fourier transform and data-driven models to determine the thickness of the soil layer and predict temperatures at the soil-layer boundary. The methodology improves the accuracy and speed of sewer heat transfer modeling.
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.
Article
Engineering, Environmental
Hongliang Dai, Jinkun Zhao, Zeyu Wang, Cheng Chen, Xingyu Liu, Zechong Guo, Yong Chen, Shuai Zhang, Jiuling Li, Hongya Geng, Xingang Wang
Summary: In the past few decades, a variety of multi-objective optimization algorithms have been extensively studied to solve the optimal decision-making problem in sewage treatment processes. However, it is challenging to achieve ideal solutions due to complicated relationships among influencing factors, especially when dealing with a large number of decision variables in wastewater treatment. Therefore, an improved dynamic multi-objective particle swarm optimization algorithm (DMOPSO-CD) based on crowding distance is proposed to obtain global optimal solutions for the balance between energy consumption (EC) and effluent quality (EQ) in sewage treatment processes. The algorithm includes optimization modules and a self-organizing fuzzy neural network, enhancing the global search ability of particles, maintaining the diversity of non-inferior solutions, and addressing the crucial issues in multi-objective optimization of sewage treatment processes. The optimization results on a benchmark simulation model No.1 showed that the EC for wastewater treatment in dry, rainy, and storm weather was reduced by 7.87%, 6.28%, and 7.30%, respectively. This methodology outperformed several widely applied algorithms, including the multi-objective cuckoo search, non-dominated sorting genetic algorithm-II, and improving Pareto evolutionary algorithm, in terms of EQ and EC, providing a new approach for optimal decision-making in sewage treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL 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)
