Review
Environmental Sciences
Eloi Morral, David Gabriel, Antonio D. Dorado, Xavier Gamisans
Summary: Ammonia emissions are commonly found in various facilities and effective management is crucial. While physical-chemical treatments are common, there is increasing interest in eco-friendly biological alternatives, with bioscrubbers emerging as a promising option. Proper management of the by-products of ammonia bio-oxidation is essential for the successful operation of the process.
Article
Agriculture, Dairy & Animal Science
Siyi Peng, Jiaming Zhu, Zuohua Liu, Bin Hu, Miao Wang, Shihua Pu
Summary: With the development of pig farming intensification, the air quality and odor emissions in pig houses have become a growing concern. Ammonia, as an important environmental indicator, can significantly affect the growth of pigs and pose health risks to farm workers. This study used machine learning and deep learning algorithms to predict ammonia concentration in pig houses. The results can serve as a reference for regulating air quality in these environments.
Article
Engineering, Environmental
Zhao Jiaqi, Yuan Linjiang, Wang Yang
Summary: This study investigates the removal of ammonia nitrogen with the aid of sulfate in domestic wastewater treatment. The experimental results show that the desired reactions can be achieved in a specific reactor under certain conditions, and the presence of iron ions enhances the efficiency of ammonia removal.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Biotechnology & Applied Microbiology
Maartje A. H. J. van Kessel, Karin Stultiens, Arjan Pol, Mike S. M. Jetten, Boran Kartal, Huub J. M. Op den Camp
Summary: The study investigated the simultaneous activity of an anaerobic methane- and ammonia-oxidizing coculture under oxygen limitation, indicating the feasibility of combining N-damo and anammox activity for methane and ammonia removal. This research provides valuable insights for the potential application of these microbial processes in wastewater treatment to address eutrophication and greenhouse gas emissions.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Environmental Sciences
Eloi Morral, Antonio D. Dorado, Xavier Gamisans
Summary: This study presents a novel bioscrubber configuration for treating high ammonia loads in a short amount of time. The findings demonstrate that this configuration, coupled with a moving-bed biofilm reactor, effectively removes ammonia and achieves high nitrification rates.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agricultural Engineering
Qianwen Sui, Fei Di, Junya Zhang, Hui Gong, Li'an Jiang, Yuansong Wei, Jie Liu, Jia Lin
Summary: This study confirmed the feasibility of anaerobic ammonia oxidation as a tertiary nitrogen removal process, and identified the main nitrogen removal pathway using anammox in an upflow fixed-bed reactor. It also investigated the cooperation mechanism among AOA, AOB, and AnAOB in the inner-layer of biofilm in the reactor.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Tengzhi Zhou, Yu Xiang, Shiyi Liu, Zhiyu Shao, Yiwen Liu, Haiyuan Ma, Qiang He, Hongxiang Chai
Summary: In this study, the authors analyzed a biofilm system for simultaneous nitrogen and phosphorus removal in wastewater treatment. They found that comammox Nitrospira was the main ammonia-oxidizing microorganism, providing nitrite for anaerobic ammonia oxidation bacteria. Additionally, the bacteria of genus Defluviicoccus dominated the glycogen-accumulating organisms and primarily reduced nitrate. Fluorescent in situ hybridization analysis confirmed the enrichment of Nitrospira in the inner layer of the biofilm. This study provides new insights into the mechanism of SNPR biofilm systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Shanshan Liu, Longqian Xu, Xiaoqing Lin, Jiaming Zhang, Deli Wu
Summary: In this study, an electrochemical oxidation (EO) process using commercial Ti/IrO2-RuO2 anodes was employed to remove ammonia from black water. By adjusting the dosage of chloride, 100% removal of ammonia was achieved. The relationship between ammonia, chloride, and the degradation rate constant (K-obs) was used to determine the optimal chloride dosage and predict ammonia oxidation kinetics. The electrochemical process showed potential as a treatment method for black water, but the high chloride dosage also resulted in the generation of toxic by-products.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agricultural Engineering
Kimitaka Minami, Akira Takahashi, Koji Sakurai, Hiroaki Mikasa, Mikihiro Takasaki, Naoaki Doshu, Katsuya Aoyama, Tohru Nakamura, Ryota Iwai, Tohru Kawamoto
Summary: This study developed an ammonia adsorption and adsorbent regeneration apparatus to remove ammonia in a pig house. The results showed that the system effectively controlled ammonia concentration and temperature, resulting in improved growth rate and feed conversion ratio of pigs.
BIOSYSTEMS ENGINEERING
(2022)
Article
Multidisciplinary Sciences
S. Abernethy, F. M. O'Connor, C. D. Jones, R. B. Jackson
Summary: This study examines the potential advantages of methane removal as a key supplementary technology in mitigating climate change. The research highlights that methane removal can reduce temperature more rapidly than carbon dioxide removal, improve air quality, and provide important insights for future climate policy formulations.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2021)
Article
Engineering, Environmental
Chen Zhao, Jia Li, Chenyu Li, Bin Xue, Shang Wang, Xi Zhang, Xiaobo Yang, Zhiqiang Shen, Lin Bo, Zhigang Qiu, Jingfeng Wang
Summary: This study investigated the impact of a conjugative transfer plasmid RP4 on ammonia oxidation and found that the transfer of RP4 plasmid significantly inhibited the ammonia removal efficiency and suppressed the expression of functional genes related to ammonia oxidation in ammonia-oxidizing bacteria.
Article
Soil Science
Jun Xie, Zifang Wang, Ying Wang, Shujiang Xiang, Ziyi Xiong, Ming Gao
Summary: Fertilization and soil environmental factors play a role in the niche differentiation of ammonia-oxidizing microorganisms and affect the ammonia-oxidation process. In this study, the effect of manure, chemical fertilizer, and manure combined with biochar on soil properties and the abundance, diversity, and structure of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in the rhizosphere were investigated. The results showed that chemical fertilizer and manure combined with biochar increased the potential nitrification rate (PNR) and AOA amoA gene abundance, while manure combined with biochar decreased PNR and AOA amoA gene abundance. The population structure of AOA and AOB was influenced by pH, available phosphorus, carbon-to-nitrogen ratio, soil moisture content, nitrate nitrogen, and ammonium nitrogen in the rhizosphere. The ammonia oxidation process in the acid purple soil was dominated by AOA in the presence of chemical fertilizer and pig manure combined with rice husk biochar.
APPLIED SOIL ECOLOGY
(2023)
Article
Environmental Sciences
Yuncheng Wu, Wei Tian, Yang Zhang, Wei Fan, Fang Liu, Jiayin Zhao, Mengmeng Wang, Yu Liu, Tao Lyu
Summary: This study investigated the use of novel nanobubble technology and ozone oxidation method to enhance the ozonization of ammonia. The results showed that the use of nanobubbles significantly improved the removal of ammonia compared to the control group, with a higher kinetic rate constant.
Article
Chemistry, Physical
Puqing Shen, Guochen Zhang, Yang Wu, Yaliu Zhang, Xi Liu, Yang Xu, Yaoqiang Chen, Lin Zhong
Summary: The perovskite synthesized showed a significant reduction in ammonia formation in the exhaust gases, and also improved the three-way catalytic performance of Pd/Al and 3Pd/Al-La catalysts. The presence of perovskite greatly decreased the ammonia content in the exhaust gases, with particularly notable results in the absence of CH4.
Article
Environmental Sciences
Ting Xie, Xinyu Liu, Yiming Xu, Samuel Bryson, Lu Zhao, Kai Huang, Shiqi Huang, Xiaoming Li, Qi Yang, Huiyu Dong, Mari-Karoliina H. Winkler
Summary: Simultaneous removal of ammonium and nitrate was achieved in a methane-fed moving bed biofilm reactor (MBBR) through the collaboration of methanotrophic microorganisms, denitrifiers, and anaerobic ammonium oxidizing bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)