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Min Pan, Xiaoming Huang, Guangxue Wu, Yuansheng Hu, Yan Yang and Xinmin Zhan
This study aims to investigate the effects of the organic loading rate (OLR) and the aeration rate on denitrifying phosphate removal (DPR) from slaughterhouse wastewater treated at a temperature of 11 °C. Three laboratory-scale intermittently aerated seq...
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Nadine C. Boelee, Hardy Temmink, Marcel Janssen, Cees J. N. Buisman and René H. Wijffels
Microalgae can be used for the treatment of municipal wastewater. The application of microalgal biofilms in wastewater treatment systems seems attractive, being able to remove nitrogen, phosphorus and COD from wastewater at a short hydraulic retention ti...
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Jiawei Li, Kun Dong, Shaoyuan Bai, Yubing Fan, Yishan Feng, Meina Liang and Dunqiu Wang
A combined anaerobic?anoxic?oxic moving bed biofilm reactor (A2O-MBBR) constructed wetlands process was used to treat low carbon-to-nitrogen (C/N) simulated sewage. The results showed that the removal rates of chemical oxygen demand (COD), ammonia nitrog...
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Joanna Rodziewicz, Artur Mielcarek, Wojciech Janczukowicz, Andrzej Bialowiec, Jorge Manuel Rodrigues Tavares, Krzysztof Józwiakowski and Arthur Thornton
This study analyzed the effect of lightweight aggregates made of fly ash from sewage-sludge thermal treatment (FASSTT LWA) on the effectiveness of phosphorus removal from wastewater in vertical constructed wetlands (CWs), depending on FASSTT LWA content ...
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Qihui Liang, Xinxi Fu, Ping Wang, Xinxian Li and Peiyuan Zheng
Biochar is a new type of adsorption material with excellent performance, but it has some problems, such as light texture, poor sedimentation, and difficult recovery, which limits its practical application. In this study, biochar microspheres (MBCQ) were ...
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Isis S. P. C. Scott, Chad J. Penn and Chi-hua Huang
The reduction of dissolved phosphorus (P) transport to water systems is of critical importance for water quality. Phosphorus sorption materials (PSMs) are media with high affinity for dissolved P, and therefore serve as the core components of P removal s...
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Svetlana Öfverström, Åsa Davidsson, Salar Haghighatafshar, Hamse Kjerstadius and Jes la Cour Jansen
Ochre, waste iron sludge from the treatment of iron rich groundwater for potable use, makes up a significant waste problem. Furthermore, wastewater treatment plants with enhanced biological phosphorus removal and the digestion of sludge are in lack of ir...
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Shugeng Feng, Shengjun Xu, Xupo Zhang, Rui Wang, Xiaona Ma, Zhirui Zhao, Guoqiang Zhuang, Zhihui Bai and Xuliang Zhuang
Water pollution caused by various eutrophic nutrients such as nitrogen (N) and phosphorus (P), such as outbreaks of eutrophication in rivers and lakes, has become a serious environmental problem in China. Such problems have spurred extensive studies aimi...
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F.J. Rubio-Rincón, L. Welles, C.M. Lopez-Vazquez, M. Nierychlo, ... D. Brdjanovic
Pág. 53 - 64
Thiothrix caldifontis was the dominant microorganism (with an estimated bio-volume of 65 ± 3%) in a lab-scale enhanced biological phosphorus removal (EBPR) system containing 100 mg of sulphide per litre in the influent. After a gradual exposure to the pr...
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Ying-Xin Zhao, Chun-Fang Chao, Si-Yuan Zhai, Zi-Jian Wang and Min Ji
Differing from municipal wastewater, rural wastewater in salinization areas is characterized with arbitrary discharge and high concentration of salt, COD, nitrogen and phosphorus, which would cause severe deterioration of rivers and lakes. To overcome th...
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Xiujuan Chen, Guohe Huang, Haiyan Fu, Chunjiang An, Yao Yao, Guanhui Cheng and Meiqin Suo
Eutrophication has become increasingly serious in recent years, which severely impairs the aquatic ecosystem. Applying environmentally-friendly methods to effectively control the growth of algae and avoid eutrophication has been proved to be a promising ...
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Chad Penn, Isis Chagas, Aleksandar Klimeski and Gry Lyngsie
Controlling dissolved phosphorus (P) losses to surface waters is challenging as most conservation practices are only effective at preventing particulate P losses. As a result, P removal structures were developed to filter dissolved P from drainage water ...
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Xiujuan Chen, Guohe Huang, Haiyan Fu, Chunjiang An, Yao Yao, Guanhui Cheng, Meiqin Suo
Pág. 1 - 12
Eutrophication has become increasingly serious in recent years, which severely impairs the aquatic ecosystem. Applying environmentally-friendly methods to effectively control the growth of algae and avoid eutrophication has been proved to be a promising ...
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Stefan E. B. Weisner, Karin Johannesson, Geraldine Thiere, Henrik Svengren, Per Magnus Ehde, Karin S. Tonderski
Pág. 1 - 11
During 2007?2013, the Swedish Board of Agriculture granted support within a national program to about 1000 wetlands, corresponding to a 5300-hectare wetland area, with the dual goal to remove nutrients from water and to improve biodiversity in agricultur...
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Stefan E. B. Weisner, Karin Johannesson, Geraldine Thiere, Henrik Svengren, Per Magnus Ehde and Karin S. Tonderski
During 2007?2013, the Swedish Board of Agriculture granted support within a national program to about 1000 wetlands, corresponding to a 5300-hectare wetland area, with the dual goal to remove nutrients from water and to improve biodiversity in agricultur...
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Lai Yoke Lee, Bibin Wang, Huiling Guo, Jiang Yong Hu and Say Leong Ong
Aluminum-based water treatment residue (Al-WTR) generated during the drinking water treatment process is a readily available recycled material with high phosphorus (P) adsorption capacity. The P adsorption capacity of Al-WTR generated from Singapore?s wa...
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Jin Zhang, Yawei Liu, Jiajia Liu, Yu Shen, Hui Huang, Yongli Zhu, Jiangang Han and Haiying Lu
Phosphorus (Pi) and cadmium (Cd) contamination in water sources pose significant health risks and environmental concerns. Periphytic biofilms have been recognized for their ability to effectively remove these contaminants from aquatic environments. This ...
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Yan Liu, Limin Zhang and Rajendra Prasad Singh
Fly ash and steel slag both have a good adsorption performance and many researchers have mixed the two to make effective adsorbents. Based on previous knowledge, activated clay is added in this study. In order to deep dephosphorize wastewater, two differ...
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Jessica K. Hauda, Steven I. Safferman and Ehsan Ghane
Phosphorus (P) is a valuable, nonrenewable resource in agriculture promoting crop growth. P losses through surface runoff and subsurface drainage discharge beneath the root zone is a loss of investment. P entering surface water contributes to eutrophicat...
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Yihuan Deng and Andrew Wheatley
Due to urbanisation, there are large amounts of waste concrete, particularly in rapidly industrialising countries. Currently, demolished concrete is mainly recycled as aggregate for reconstruction. This study has shown that larger sizes (2?5 mm) of recyc...
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