Article
Engineering, Environmental
Naveen Chand, Kapil Kumar, Surindra Suthar
Summary: The study demonstrated that intermittent aeration in VFCWs significantly improved the removal efficiency of COD, NH4+-N, NO3-N, and TP compared to non-aerated setups, while setups with biochar (BC) addition and plantation were more advantageous in nutrient removal than those without BC. Moreover, the COD/N ratio of wastewater did not have a significant impact on VFCWs with BC and intermittent aeration, indicating the effectiveness of slow adsorption and fast aerobic degradation processes.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Agricultural Engineering
Fengyuan Zhang, Quan Feng, Ying Chen, Xiaoshuang Shi, Kang Qin, Mingyi Lu, Fan Qin, Shanfei Fu, Rongbo Guo
Summary: Magnetic microparticles can promote nitrification and denitrification in wastewater treatment, facilitate EPS production, and act as a pH buffer in aerobic conditions, thus enhancing nitrogen removal efficiency.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Chemical
Magdalena Zielinska, Agnieszka Cydzik-Kwiatkowska, Magdalena Chybalska, Wioleta Mikucka
Summary: The study found that activated sludge from a membrane bioreactor has a significant potential to remove nitrogen from anaerobic digester supernatant, with an ammonium removal efficiency exceeding 97% due to the high abundance of ammonium-oxidizing bacteria. However, dissolved oxygen and volumetric exchange rate affected the process rate of nitrogen removal. Nitrogen removal efficiency varied under different dissolved oxygen concentrations and volumetric exchange rates without the addition of external carbon sources.
DESALINATION AND WATER TREATMENT
(2021)
Article
Energy & Fuels
Aleksandra Chuda, Krzysztof Zieminski
Summary: This study aimed to develop a method to manage digestate in agricultural biogas plants during periods when its use as fertilizer is not possible. A lab-scale system utilizing acetic acid and other external carbon sources was tested for biological treatment of the digestate liquid fraction. Results showed that flume water could be used as an alternative carbon source to enhance biological nitrogen removal from digestate.
Article
Engineering, Environmental
Reynel Martinez Castellanos, Jasmim Muniz Rodrigues Dias, Isabelli Dias Bassin, Marcia Dezotti, Joao Paulo Bassin
Summary: The study found that SRT did not affect the stability of COD removal, but did impact phosphate removal, with lower SRT facilitating biological phosphate removal.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
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
Engineering, Environmental
Mervenur Kilic, Tulay Yilmaz, Recep Partal, Emrah Sik, Ozgur Dogan, Mehmet Kitis, Erkan Sahinkaya
Summary: This study investigated nutrient recovery through struvite precipitation from anaerobic digester supernatant with high concentrations of nitrogen and phosphorus using a fluidized-bed reactor. The results showed that struvite could be successfully precipitated at high performances even with a hydraulic retention time (HRT) of 2.5 minutes and molar Mg2+/NH4+/PO4 3- ratio of 1.5/16.6/1. The highest NH4-N and PO4-P precipitation performances were achieved at an Mg/P molar ratio of 2. Furthermore, volatile fatty acid presence did not adversely affect the struvite precipitation performance.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Pascal Ochs, Ben Martin, Eve Germain-Cripps, Tom Stephenson, Mark van Loosdrecht, Ana Soares
Summary: Over the past twenty years, various commercial technologies have been deployed to remove ammonia from anaerobic digestion liquors. This study provides a comparative techno-economic assessment of sidestream technologies to remove ammonia from conventional AD and THP/AD dewatering liquors. The study identified that deammonification is a capable and cost-effective nitrogen removal technology.
ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY
(2023)
Article
Agricultural Engineering
Hengyi Liu, Lei Li, Wenjie Ye, Lingyu Ru, Guotao Liu, Xuya Peng, Xiaoming Wang
Summary: A hybrid activated sludge membrane-aerated biofilm reactor based on a two-stage simultaneous nitrification-denitrification (SND) process was successfully utilized for treating interflow with low COD/N ratio. The reactor showed stable operation and high removal efficiency for COD, TN, and ammonia nitrogen under low COD/N conditions. Additionally, aerobic denitrification was found to play an important role in the denitrification process under aerobic conditions.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Angel Estevez-Alonso, Mark C. M. van Loosdrecht, Robbert Kleerebezem, Alan Werker
Summary: Research has shown that controlling the dissolved oxygen concentration in microbial community-based PHA production can reduce the activity of nitrifying bacteria while promoting PHA production. By utilizing the oxygen provided by nitrifying bacteria to supply the nitrate required for PHA production, maximum PHA production rates can be maintained.
BIORESOURCE TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Weifeng Deng, Litao Wang, Lang Cheng, Wenbo Yang, Dawen Gao
Summary: This paper reviewed the recent advances of anammox based processes for mature landfill leachate treatment and suggested some improvements to enhance the process efficiency.
Article
Engineering, Environmental
Yuanyuan Miao, Liang Zhang, Deshuang Yu, Jianhua Zhang, Wenke Zhang, Guocheng Ma, Xinchao Zhao, Yongzhen Peng
Summary: Intermittent aeration is an effective strategy for biological wastewater treatment, allowing for advanced nitrogen removal and reduced energy consumption. It is suitable for partial nitrification and denitrification processes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Rodrigo de Freitas Bueno, Julia Kersul Faria, Darcio Pinheiro Uliana, Vitor Silva Liduino
Summary: This study shows that the aerobic granular sludge process is effective in treating leachate from giant sanitary landfills, achieving high removal efficiency for organic matter and total nitrogen regardless of the leachate ratio. The study also demonstrates that the simultaneous nitrification and denitrification (SND) process can occur at low dissolved oxygen concentrations.
ENVIRONMENTAL TECHNOLOGY
(2021)
Article
Environmental Sciences
Jinfeng Jiang, Liang Ma, Lianjie Hao, Daoji Wu, Kai Wang
Summary: The study demonstrated that advanced nitrogen removal from landfill leachate can be achieved through SBR and SBBR without the addition of external carbon sources. SBBR showed a 16.7% improvement in nitrogen removal efficiency compared to SBR, attributed to the enhanced simultaneous nitrification and denitrification effect of the biofilm.
Article
Environmental Sciences
Yan Feng, Yongzhen Peng, Bo Wang, Bo Liu, Xiyao Li
Summary: A novel anaerobic/aerobic/anoxic/aerobic (AOAO) continuous plug-flow reactor was constructed to achieve stable partial nitrification and advanced nitrogen removal in treating domestic sewage, with the key factors being alternating anoxic/aerobic conditions and longer anoxic sludge retention time.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Editorial Material
Energy & Fuels
Agnieszka Cydzik-Kwiatkowska
Article
Chemistry, Physical
Maja Radziemska, Mariusz Z. Gusiatin, Agnieszka Cydzik-Kwiatkowska, Aurelia Blazejczyk, Vinod Kumar, Antonin Kintl, Martin Brtnicky
Summary: The present study comprehensively investigates the effectiveness of biochar-aided phytostabilization of metal/metalloid-contaminated soil under freezing-thawing conditions. The results show that biochar improves plant biomass, soil pH value, and reduces metal accumulation in stems and total content in the soil.
Article
Environmental Sciences
Agnieszka Cydzik-Kwiatkowska, Nadieh De Jonge, Jan Struckmann Poulsen, Jeppe Lund Nielsen
Summary: In this study, a gentle extraction approach combined with molecular analysis was used to investigate the composition and functions of microbes in aerobic granules from a wastewater treatment plant. The results revealed the presence of different functional bacteria in different layers of the granules, and the formation of microbial aggregates and extracellular polymeric substances played a crucial role in the structure of the granules.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Piotr Jachimowicz, Dawid Nosek, Agnieszka Cydzik-Kwiatkowska
Summary: The increasing production of plastic has led to widespread pollution of the environment with microplastics. This study aimed to investigate the microbial community on microplastic surfaces at different concentrations of ammonium nitrogen and identify microorganisms capable of degrading polyethylene terephthalate (PET). The results showed that biofilm-forming microorganisms from the genera Rhodococcus, Pseudomonas, and Xantomonas were present on the microplastic surface at lower ammonium concentrations. At higher ammonium concentrations, the microbial community changed, and the number of microorganisms capable of degrading microplastics decreased. Additionally, changes in the chemical characteristics of the microplastic surface resulting from microbial activity were observed, as well as the potential for microplastics to serve as carriers of pathogens from the genera Mycobacterium, Enterobacter, and Brevundimonas.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Engineering, Environmental
Magdalena Zaborowska, Katarzyna Bernat
Summary: This review focuses on the characteristics of the most widely used biopolymers, such as those containing starch, polylactic acid, cellulose, and/or polybutylene succinate. The development of recycling methods for bio-based materials is crucial in the implementation of a circular economy. This article summarizes the available methods of recycling for bio-based materials, including mechanical, chemical, and organic recycling, and suggests that organic recycling may be a more sustainable alternative.
WASTE MANAGEMENT & RESEARCH
(2023)
Article
Environmental Sciences
Agnieszka Cydzik-Kwiatkowska, Katarzyna Bernat, Magdalena Zielinska, Mariusz Zygmunt Gusiatin, Irena Wojnowska-Baryla, Dorota Kulikowska
Summary: This study assessed biogas production from waste AGS and investigated the properties of the digestate. The results showed that ultrasound pretreatment increased the accessibility of organics and significantly improved biogas production. The digestion time of pretreated AGS was reduced by 25%, indicating that anaerobic digestion is a feasible solution for AGS waste management.
Article
Energy & Fuels
Katarzyna Bernat, Thi Cam Tu Le, Magdalena Zaborowska, Dorota Kulikowska
Summary: This study analyzed the effects of hydrothermal pre-treatment and enzymatic additives on anaerobic digestion of organic waste. It was found that hydrothermal pre-treatment improved methane production and organic matter removal efficiency, while enzymatic additives further enhanced methane production. Hydrothermal pre-treatment showed better performance in organic matter removal, while enzymatic additives had a more significant impact on methane production.
Article
Energy & Fuels
Dorota Kulikowska, Katarzyna Bernat
Summary: This study assessed the characteristics of compost from municipal sewage sludge, including the kinetics of organic matter and nitrogen transformations. The study found that the concentrations of humic substances in the compost were higher than in the feedstock, and the levels of heavy metals met the Polish requirements.
Article
Environmental Sciences
Maja Radziemska, Aurelia Blazejczyk, Mariusz Z. Gusiatin, Agnieszka Cydzik-Kwiatkowska, Grzegorz Majewski, Tereza Hammerschmiedt, Wioletta Rogula-Kozlowska, Malgorzata Majder-Lopatka, Jiri Kucerik, Ayla Bilgin, Jiri Holatko, Antonin Kintl, Martin Brtnicky
Summary: The addition of natural zeolite to trace-element-contaminated soil can increase plant biomass and soil pH, and significantly decrease the total content of copper, lead, cadmium, and zinc in the soil, as well as the bioavailable and leachable content of these elements. Moreover, the presence of zeolite can also influence the bacterial diversity in the soil, favoring the growth of certain bacterial species with ecological importance.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Engineering, Environmental
Magdalena Zaborowska, Katarzyna Bernat, Bartosz Pszczolkowski, Agnieszka Cydzik-Kwiatkowska, Dorota Kulikowska, Irena Wojnowska-Baryla
Summary: Currently, there is a growing amount of poly(lactic acid) (PLA) waste in municipal waste due to the increasing production of bio-based polymeric materials. This study investigates the potential use of anaerobic digestion (AD) to treat PLA waste, focusing on the effects of thermophilic fermentation and hydrothermal and alkaline pretreatments. The findings show that pretreatments significantly increase methane production and shorten the overall time of maximal methane production. However, it is important to consider that methane production is not necessarily linked to the visible presence of PLA pieces.
Article
Environmental Sciences
D. Nosek, O. Samsel, T. Pokoj, A. Cydzik-Kwiatkowska
Summary: The commercialization of microbial fuel cell technology is hindered by high operating costs and low electricity production due to poor electron transfer to the anode. This study explores the impact of anode modification with iron compounds on energy generation efficiency and microbiome in microbial fuel cells fueled with waste volatile fatty acids. Anode modification with 2.5 g of Fe2O3/m(2) increased power density, current density, and voltage. The presence of iron favored efficient volatile fatty acids metabolism and increased the abundance of electrogens in the biofilm, leading to improved electricity generation.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Maja Radziemska, Mariusz Z. Gusiatin, Agnieszka Cydzik-Kwiatkowska, Aurelia Blazejczyk, Jiri Holatko, Martin Brtnicky
Summary: This article investigates the effect of a combined amendment, biochar+compost (BC), on the immobilization of Cd, Cu, Ni, Pb, and Zn in soil under freezing and thawing conditions (FTC). The study analyzes the speciation of these elements using sequential extraction and assesses the variability of the soil microbiome using 16S rRNA gene sequencing. The results show that BC promotes the biomass yield of L. perenne, but FTC decreases it. BC increases the content of heavy metals in plant roots and improves soil pH. BC has the greatest impact on increasing Cu stability by redistributing it from certain fractions to others. FTC affects the stability of heavy metals in the soil, especially for Pb and Zn. The core genera in the soil samples include Sphingomonas sp. and Mycobacterium sp., and FTC favors the growth of Bacteroidetes and Proteobacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Magdalena Zielinska, Agnieszka Cydzik-Kwiatkowska, Dorota Kulikowska, Katarzyna Bernat, Marcin Zielinski, Irena Wojnowska-Baryla
Summary: Iron incorporation in biomass carriers at different percentages significantly affected the nitrogen removal efficiency and the abundance of Anammox bacteria. The addition of 5% iron carriers resulted in the highest nitrogen removal efficiency (up to 75%) and increased ammonium removal rate. However, the presence of 10% iron carriers inhibited ammonium oxidation rate. The long-term release of ferrous iron from the carrier structure accelerated the treatment of the digester supernatant.
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)
