Results 111 to 120 of about 3,939 (149)

Bromate removal during transition from new granular activated carbon (GAC) to biological activated carbon (BAC)

Water Research, 1999
Abstract Bromate removal by activated carbon after ozonation is a subject of concern, since bromate is commonly found in the ozonation of bromide-containing water. Though new GAC (granular activated carbon) shows the capacity to reduce bromate to bromide, in the long-term use of GAC following ozonation, its bromate removal rate apparently decreases ...
Mari Asami, Takako Aizawa, Takayuki Morioka, Wataru Nishijima, Akihisa Tabata, Yasumoto Magara   +5 more
openaire   +3 more sources

Impact of temperature on nitrification in biological activated carbon (BAC) filters used for drinking water treatment

Water Research, 2001
The impact of temperature on nitrification in biological granular activated carbon (GAC) filters was evaluated in order to improve the understanding of the nitrification process in drinking water treatment. The study was conducted in a northern climate where very cold water temperatures (below 2 degrees C) prevail for extended periods and rapid shifts ...
Andersson, A., Laurent, P., Kihn, Anne, Prévost, Martine, Servais, Pierre   +4 more
openaire   +4 more sources

Removal of precursors of typical nitrogenous disinfection byproducts in ozonation integrated with biological activated carbon (O3/BAC)

Chemosphere, 2018
The O3/BAC process has been widely used in drinking water treatment to improve the removal of dissolved organic matters (DOMs), including the precursors of nitrogenous disinfection byproducts (N-DBPs). In this study, the removal of N-DBP precursors by biological activated carbon (BAC) filters with different usage time of granular activated carbon (GAC)
Zheng, Jian, Lin, Tao, Chen, Wei, Tao, Hui, Tan, Yiwen, Ma, Baiwen   +5 more
openaire   +4 more sources

Accumulation of antibiotic resistance genes in full-scale drinking water biological activated carbon (BAC) filters during backwash cycles

Water Research, 2021
Biological activated carbon (BAC) filtration, a process widely used in drinking water treatment, was recently reported to harbor antibiotic resistance genes (ARGs). This emerging contamination is poorly understood. This study was conducted to investigate the occurrence of ARGs and bacterial community in full-scale BAC filters during the backwash cycle ...
Kun Wan, Lizheng Guo, Chengsong Ye, Jianwen Zhu, Menglu Zhang, Xin Yu   +5 more
openaire   +4 more sources

Previously uncultured β-Proteobacteria dominate in biologically active granular activated carbon (BAC) filters

Water Research, 2009
Bacteria colonizing BAC filters used in drinking water purification from lake water were characterized by morphology, physiological tests, whole cell protein profiles and PLFA (phospholipid fatty acid) composition, and identified by partial 16S rRNA gene sequencing. Epifluorescence revealed prothecate bacteria to dominate in BAC.
R Maarit, Niemi, Ilse, Heiskanen, Riitta, Heine, Jarkko, Rapala   +3 more
openaire   +2 more sources

Aerobic biological activated carbon (BAC) treatment of a phenolic wastewater

Environmental Progress, 1992
AbstractOrganic removal rates achieved in the aerobic BAC process were comparable to rates typically reported for traditional aerobic fixed‐film systems. When operated at organic loading rates lower than 0.03 g COD/g GAC‐d and air as the oxygen source, greater than 90 percent COD removal and 99 percent phenol removal was achieved.
Wei Lin, A. Scott Weber
openaire   +1 more source

Anaerobic/Aerobic biological activated carbon (BAC) Treatment of a high strength phenolic wastewater

Environmental Progress, 1992
AbstractAs a result of manufacturing operations at the Durez Division of Occidental Chemical Corporation (OCC) located in North Tonawanda, New York, a highly phenolic wastestream is produced. At the time of this study, average phenols and total COD concentrations of the wastestream averaged 35,000 and 10,000 mg/L.
A. Scott Weber, Ming‐Shen Lai, Wei Lin, John G. Goeddertz, Wei‐Chi Ying, James J. Duffy   +5 more
openaire   +1 more source

Study on reactivation cycle of biological activated carbon (BAC) in water treatment

International Biodeterioration & Biodegradation, 2015
Abstract This paper focused on the study of the reactivation cycle of biological activated carbon, which depended on the service time of BAC, running load, and reactivation time, reactivation yield, and reactivation cost etc. Six advanced water treatment plants (WTP1, WTP2, WTP3, WTP4, WTP5 and WTP6) of Jiangsu Provence in southern China, using BAC ...
Lihua Dong, Wenjun Liu, Renfu Jiang, Zhansheng Wang   +3 more
openaire   +1 more source

Composition and Abundance Changes of Invertebrates in Biological Activated Carbon (BAC) Filters

2009 3rd International Conference on Bioinformatics and Biomedical Engineering, 2009
Biological Activated Carbon Filter (BACF) could provide ideal habitats for invertebrates, which may leads to aesthetic problems and adverse health effects on drinking water.The invertebrates in BACF in a water plant of south China have been studied from Sep. 2006 to Sep. 2007. 23 species (genera or group) of invertebrates were found.
Lijun Liu, Jianshu Zhao, Jinsong Zhang, Xiaowei Li   +3 more
openaire   +1 more source

Performance of biological activated carbon (BAC) filtration for the treatment of secondary effluent: A pilot-scale study

Journal of Environmental Management, 2022
In addition to the adsorption capability for organic compounds, granular activated carbon (GAC) can also serve as a good media for the growth of microbial communities in biofilters. Despite its potential, the application of BAC filtration for municipal wastewater treatment has been little addressed in the literature.
Priscila Ribeiro dos Santos, Luan de Souza Leite, Luiz Antonio Daniel   +2 more
openaire   +2 more sources