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Huiyun Zhong, Liangfei Dong, Yuanyuan Tang, Lin Qi and Mengyu Wang
In this study, a laboratory-scale membrane aerated biofilm reactor system was operated successively through four phases with different C/N ratios (7, 5, 3, and 1) for 15 days each to investigate the C/N ratio?s effect on the COD and nitrogen removal. The...
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Hyun-Hee Jang, Gyu-Tae Seo and Dae-Woon Jeong
Currently, the ozone (O3) oxidation efficiency in the treatment of waste soy sauce provides 34.2% color removal and a 27.4% reduction in its chemical oxygen demand (COD). To improve the O3 oxidation efficiency, hydrogen peroxide (H2O2) is used to cause a...
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Christos S. Akratos, Triantafyllos I. Tatoulis and Athanasia G. Tekerlekopoulou
The objective of this work was to determine the ability of a pilot-scale hybrid system to treat real (non-synthetic) winery wastewater. The experimental treatment system consisted of two stages: An attached growth pilot-scale bioreactor (biological trick...
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Bashir Adelodun, Matthew Segun Ogunshina, Fidelis Odedishemi Ajibade, Taofeeq Sholagberu Abdulkadir, Hashim Olalekan Bakare and Kyung Sook Choi
This study investigated the potential of Moringa oleifera (MO) seed biomass as a coagulant for the removal of turbidity, biochemical oxygen demand (BOD), and chemical oxygen demand (COD) of municipal wastewater. Triplicated laboratory experiments using M...
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Hoi Jin Kim, Jae-Woo Choi, Tae-Han Kim, Jong-Sup Park and Byungryul An
The water quality of a waterbody influenced by stormwater runoff was tested in a lab-scale setting by filtration. The filtration bed was packed with two or three types of media, sand, bottom ash (BA), and woodchips (WC), and tested with three hydraulic c...
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Pablo Marcelo Pérez García,Sandra L. Ibáñez-Calero,Ramiro Escalera Vásquez
This study investigated the use of ferrate ? hypochlorite solution or solid Ca(OCl)2 as treatment options to remove color and COD from solutions of the synthetic organic dyes: Reactive blue 19, Allura red and Reactive black 5. It was found that doses aro...
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Aspasia A. Chatzipaschali and Anastassios G. Stamatis
Cheese whey utilization is of major concern nowadays. Its high organic matter content, in combination with the high volumes produced and limited treatment options make cheese whey a serious environmental problem. However, the potential production of biog...
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Parsa Mohajeri, Mohammad Razip Selamat, Hamidi Abdul Aziz and Carol Smith
Water pollutant removal by biomass adsorbent has been considered innovative and cost-effective, and thus commendable for application in industry. However, certain important aspects have been overlooked by researchers, namely the efficiency in the operati...
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Parsa Mohajeri, Mohammad Razip Selamat, Hamidi Abdul Aziz and Carol Smith
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Currently, the ozone (O3) oxidation efficiency in the treatment of waste soy sauce provides 34.2% color removal and a 27.4% reduction in its chemical oxygen demand (COD). To improve the O3 oxidation efficiency, hydrogen peroxide (H<...
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Laura E. Christianson, Christine Lepine, Kata L. Sharrer, Steven T. Summerfelt
Pág. 147 - 156
Chemoheterotrophic denitrification technologies using woodchips as a solid carbon source (i.e., woodchip bioreactors) have been widely trialed for treatment of diffuse-source agricultural nitrogen pollution. There is growing interest in the use of this s...
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Lucía Hernández Leal, Hardy Temmink, Grietje Zeeman and Cees J. N. Buisman
Greywater consists of household wastewater excluding toilet discharges. Three systems were compared for the biological treatment of greywater at a similar hydraulic retention time of approximately 12?13 hours. These systems were aerobic treatment in a se...
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Tharaa M. Al-Zghoul, Zakaria Al-Qodah and Ahmad Al-Jamrah
The combination of the chemical coagulation-assisted electrocoagulation (CC-EC) process with a solar photovoltaic energy source has attracted increasing attention for the efficient removal of chemical oxygen demand (COD) from pharmaceutical wastewater. I...
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Yaneth Vasquez, Jair Franco, Mario Vasquez, Felipe Agudelo, Eleni Petala, Jan Filip, Jose Galvis and Oscar Herrera
The tannery wastewater from the tanning stage (TWT) comprises organic and Cr pollutants, which can adversely affect aquatic life and have carcinogenic effects. In this study, we investigated the performance of a Fenton-like process using commercial Nano-...
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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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Katelyn Skornia, Steven I. Safferman, Laura Rodriguez-Gonzalez and Sarina J. Ergas
Wastewater produced during the wine-making process often contains an order of magnitude greater chemical oxygen demand (COD) concentration than is typical of domestic wastewater. This waste stream is also highly variable in flow and composition due to th...
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Luis Fernando Perez-Mercado, Cecilia Lalander, Christina Berger and Sahar S. Dalahmeh
The potential of biochar as a filter medium for onsite wastewater treatment was investigated in five sub-studies. Sub-study 1 compared pollutant removal from wastewater using pine-spruce biochar, willow biochar and activated biochar (undefined biomass) f...
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Hamidi Abdul Aziz, Nor Aini Rahim, Siti Fatihah Ramli, Motasem Y. D. Alazaiza, Fatehah Mohd Omar and Yung-Tse Hung
Landfill leachate is a highly polluted and generated from water infiltration through solid waste produced domestically and industrially. In this study, a coagulation?flocculation process using a combination of Polyaluminium chloride (PACl) as a coagulant...
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Dennis C. Y. Ling, Jegalakshimi Jewaratnam, Chia Jun Kwong
Pág. 18
Palm oil mill effluent (POME) characterized with high total suspended solids (TSS) and chemical oxygen demand (COD) can pollute the waterways if not treated properly. The aim of this work is to study the alternative flocculant to replace commercial flocc...
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Weiyan Pan, Yunwu Xiong, Quanzhong Huang, Guanhua Huang
Pág. 1 - 18
Reclaimed water is an important supplementary source for fresh water. Purification is necessary prior to utilization in order to minimize the pollution and human-health risk. A three-year experiment was carried out to study the removal of nitrogen and or...
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