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Yuqi Wang, Mengrui Jie, Huining Zhang, Jia Yang and Meijuan Xu
The efficient removal of nitrate from industrial wastewater containing high concentrations of both sulfate and nitrate presents a major challenge in the field of water treatment. In this study, we investigated the use of an Upflow Anaerobic Sludge Blanke...
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Agnieszka Michalik, Joanna Babinska, Filip Chylinski and Artur Piekarczuk
The paper presents the results of research on the properties of fly ashes from the process of flue gas denitrification by selective non-catalytic reduction (SNCR), consisting of dosing urea into the coal combustion chamber. The research was carried out o...
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Allen Kurniawan, Se Young Kwon, Jung-Hun Shin, Jin Hur, Jinwoo Cho
Pág. 1 - 11
In this study, an anaerobic baffled reactor (ABR), combined with a post denitrification process, was applied to treat primary sludge from a municipal wastewater treatment plant and wastewater with a high concentration of nitrate. The production of volati...
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Allen Kurniawan, Se Young Kwon, Jung-Hun Shin, Jin Hur and Jinwoo Cho
In this study, an anaerobic baffled reactor (ABR), combined with a post denitrification process, was applied to treat primary sludge from a municipal wastewater treatment plant and wastewater with a high concentration of nitrate. The production of volati...
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Alessio Siciliano, Giulia Maria Curcio and Carlo Limonti
The pollution of water by nitrates represents an important environmental and health issue. The development of sustainable technologies that are able to efficiently remove this contaminant is a key challenge in the field of wastewater treatment. Chemical ...
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Xiaofeng Jia, Hanxin Fan, Jiawei Liang, Jihua Dai, Yu Sun and Wenning Mai
The alcohol precipitation wastewater discharged from the production of Chinese patent medicine (CPM) has an extremely high chemical oxygen demand (COD) and poor biodegradability. In this study, the biological treatment method of anaerobic digestion coupl...
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Shaoqing Zhang, Hang Zhang, Yucheng Feng, Naga Raju Maddela, Shugeng Li and Liqiu Zhang
This study aimed at investigating the potential impacts of perfluorooctanoic acid (PFOA) exposure on the partial denitrification (PD) system. Our results indicated that nitrite accumulation rates were significantly decreased to 67.94 ± 1.25%?69.52 ± 3.13...
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Yayuan Li, Shimin Lu, Wang Zhang, Xingguo Liu, Haixin Jiang, Chong Liu and Zehui Yuan
During the process of circulating aquaculture, high concentrations of nitrate will accumulate. A simultaneous denitrification and fermentation process is described to remove nitrate from a recirculating aquaculture system using endogenous carbon on a bio...
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Lin Gao, Chen Liu, Mingcong Li and Xianbiao Lin
Nitrate (NO3-) dissimilatory reduction processes (denitrification, anammox and dissimilatory NO3- reduction to ammonium (DNRA)) in estuarine and coastal ecosystems play a crucial role in regulating reactive nitrogen loadings. However, nitrate reduction p...
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Toshifumi Osaka, Kosuke Shirotani, Sachiko Yoshie, Satoshi Tsuneda
Pág. 3709 - 3718
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Wenjing Chen, Xiaohu Dai, Dawen Cao, Xiaona Hu, Wenru Liu and Dianhai Yang
This study investigated a rapid start-up anaerobic ammonium oxidation (Anammox) process by inoculation with stored Anammox sludge and characterized the associated microbial communities. The Anammox process took only 43 days to start. A high nitrogen remo...
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Alejandro Rodriguez-Sanchez, Alejandro Gonzalez-Martinez, Maria Victoria Martinez-Toledo, Maria Jesus Garcia-Ruiz, Francisco Osorio and Jesus Gonzalez-Lopez
Nitrogen is a main contaminant of wastewater worldwide. Novel processes for nitrogen removal have been developed over the last several decades. One of these is the partial nitritation process. This process includes the oxidation of ammonium to nitrite wi...
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Pengzhang Li, Yun Wang, Yue Liu, Shuying Wang and Yongzhen Peng
Previous studies have highlighted the salinization caused by the use of seawater to flush toilets and industrial wastewater entering the urban wastewater systems in coastal areas. Thus, in this study, the effect of salinity on N2O emissions during the pa...
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Lanfang Hu, Ziyi Feng, Yongxiang Yu and Huaiying Yao
Metal oxide nanoparticles (NPs) have been widely used in industrial and agricultural production and introduced into soils. The impact of these nanoparticles on soil nitrous oxide (N2O) emission is unclear. We conducted a microcosm experiment to investiga...
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Giuseppe Campo, Barbara Ruffino, Arturo Reyes and Mariachiara Zanetti
The region of Antofagasta is the mining hearth of Chile. The water requirement of the local mining sector is 65% of the total water uses, with a water consumption of approx. 9 m3/s in the year 2020. That determines an important pressure onto freshwater, ...
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Eng Cheong Wong, Ying Hui Ong, Yee Sern Ng
Pág. 38 - 42
Eutrophication arises from human activities has been recognized globally as an environmental issue. Human activities have greatly increased the input of phosphorus and nitrogen into the water bodies which place a heavy pressure on clean water resources. ...
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Yu Yao, Ying Chen, Ruiming Han, Desheng Chen, Huanxin Ma, Xiaoxiang Han, Yuqi Feng and Chenfei Shi
This study investigates the decomposition process of algal blooms (ABs) in eutrophic lakes and its impact on the labile endogenous nitrogen (N) cycle. In situ techniques such as diffusive gradients in thin films (DGT) and high-resolution dialysis (HR-Pee...
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F.J. Rubio-Rincón, C.M. Lopez-Vazquez, L. Welles, M.C.M. van Loosdrecht, D. Brdjanovic
Pág. 156 - 164
Although simultaneous P-removal and nitrate reduction has been observed in laboratory studies as well as full-scale plants, there are contradictory reports on the ability of PAO I to efficiently use nitrate as electron acceptor. Such discrepancy could be...
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Xiaoqiang Zhu, Guobin Wang, Jieyun Xie, Ya Zhao and Donghui Liang
The main goal of this article is to elucidate the SDZ and TN removal characteristics and mechanisms of a saline-resistant strain of Acinetobacter sp. RT-6. The SDZ and TN removal characteristics indicated that SDZ and TN removal were significantly affect...
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Maria Pia Gervasio, Elisa Soana, Fabio Vincenzi and Giuseppe Castaldelli
In transitional environments, the role of sediments biogeochemistry and denitrification is crucial for establishing their buffer potential against nitrate (NO3-) pollution. The Po River (Northern Italy) is a worldwide hotspot of eutrophication. However, ...
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