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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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M. Otero, L. Freire, S. Gómez-Cuervo and C. Ávila
Elevated ammonium (NH4+) concentrations in untreated waterways contribute to eutrophication and dissolved oxygen depletion. Geopolymer (GP) materials are introduced as sustainable, straightforward operation and low-cost option for pollutant adsorption th...
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Jinfeng Ma, Yuting Wang, Yu An, Mei Zhang and Xiaodong Wang
The impact of the spatial pattern of wetland plants on nitrogen removal is a hot research topic. Ten water samples were collected from separate sampling points in mid-August and at the end of October 2021, and the concentrations of TN, NH4-N, and NO3-N i...
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Amalia García-Valero, José Alberto Acosta, Ángel Faz, María Dolores Gómez-López, Dora María Carmona, Martire Angélica Terrero, Oumaima El Bied and Silvia Martínez-Martínez
The main objective of this study was to analyze the efficiency of CWs for purifying swine wastewater in order to reduce its pollutant load. The system included a pretreatment module (raw swine wastewater tank, phase separator, and settlement tank), and t...
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Lichao Nengzi, Ying Jiang, Zhirong Fang, Qiyuan Hu, Guanglei Qiu and Haitao Li
In order to improve the removal efficiency of refractory organic matters in micro-polluted source water, biological manganese oxides (BMOs) were generated in situ in the biological aerated filter (BAF) (BAF 2#), which could oxidize the refractory organic...
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Paulina Vilela, Kijeon Nam and Changkyoo Yoo
Partial nitritation (PN) coupled with the anaerobic ammonium oxidation (Anammox) process has improved ammonium removal in wastewater treatment plants (WWTPs). The operation conditions of this process, i.e., the dissolved oxygen (DO) and the influent ammo...
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Yongjun Zhong and Haiyang Xia
Excess nitrogen and phosphorus in the water causes several ecological problems for nutrients. Biological nitrogen removal is an economical and efficient way to prevent excessive nitrogen in the environment. For most areas of China, temperatures are usual...
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Zhaoxu Peng, Minghui Liu, Tingmei Li, Wangcheng Zhang, Yanpeng Wang, Luji Yu and Jiantao Ji
Given increasingly prominent environmental issues, there is a pressing need to satisfy more stringent emission standards for wastewater treatment plants (WWTP) while concurrently prioritizing energy conservation; a new up-flow layered nitrogen removal fi...
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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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Kateryna Stepova, Iryna Fediv, Au?ra Ma?eikiene, Julita ?arko and Jonas Ma?eika
The research focuses on ammonia and phosphate removal from wastewater by using a novel metal and microwave-treated clinoptilolite. For increasing adsorption capacity, the samples were calcinated or microwave irradiated in the solutions of Fe(III), Cu (II...
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