Results 161 to 170 of about 11,073 (221)

Dechlorination of auto shredder residues

Journal of Hazardous Materials, 2007
Dechlorination of ASR (auto shredder residual) wastes has been studied in the present work. ASR was predechlorinated with Ca(OH)(2) extraction as well as dechlorinated with Ca(OH)(2) during incineration or pyrolysis. Experimentally, pre-dechlorination of ASR via extraction of Cl with a Ca(OH)(2) solution (pH 12.5) may reduce Cl contain in the ASR by 15%
Hua-Shan, Tai, Chia-Ming, Liu, Yun-Jou, Wu   +2 more
openaire   +3 more sources

Potential Role of Methanogens in Microbial Reductive Dechlorination of Organic Chlorinated Pollutants in Situ

Environmental Science & Technology, 2021
Previous studies often attribute microbial reductive dechlorination to organohalide-respiring bacteria (OHRB) or cometabolic dechlorination bacteria (CORB).
Yan He, Jianming Xu, Yi Yang
exaly   +2 more sources

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KINETICS OF POLYCHLORINATED BIPHENYL DECHLORINATION AND GROWTH OF DECHLORINATING MICROORGANISMS

Environmental Toxicology and Chemistry, 2001
Abstract The present study has investigated a correlation between the kinetics of polychlorinated biphenyl (PCB) dechlorination and the growth of dechlorinating microbial populations. Microorganisms were eluted from Aroclor® 1248-contaminated St.
G Y, Rhee, R C, Sokol, C M, Bethoney, Y C, Cho, R C, Frohnhoefer, T, Erkkila   +5 more
openaire   +2 more sources

Incompleteness of Wastewater Dechlorination

Environmental Science & Technology, 1995
Dechlorination by sulfur dioxide or other S(IV) compounds is employed to protect aquatic wildlife from toxic residual chlorine in wastewatertreatment plant effluents. Tests at two wastewater treatment plants show that dechlorination removes 87-98% of residual chlorine but that a remainder, which exceeds regulatory limits, is very slowly reduced ...
G R, Helz, A C, Nweke
openaire   +2 more sources

Temperature dependence of sequential chlorinated ethenes dechlorination and the dynamics of dechlorinating microorganisms

Chemosphere, 2022
Thermally enhanced bioremediation is a promising approach to shorten the bioremediation period of tetrachloroethene (PCE) and trichloroethene (TCE). To clarify the influence that temperature has on stepwise PCE dechlorination and associated microorganisms, this study conducted dechlorination experiments using contaminated soil and groundwater under ...
Yuji Yamazaki, Gaku Kitamura, Xiaowei Tian, Ichiro Suzuki, Takeshi Kobayashi, Takaaki Shimizu, Daisuke Inoue, Michihiko Ike   +7 more
openaire   +2 more sources

Dechlorination and trihalomethane yields

Bulletin of Environmental Contamination and Toxicology, 1985
Wastewater treatment plants, paper mills and electric power plants are major dischargers of chlorinated effluents to rivers, lakes, estuaries and the sea. At power plants chlorine is used to control fouling in cooling water while it is passing through conduits and condensers.
G R, Helz, A D, Uhler, R, Sugam
openaire   +2 more sources

Oxygen exposure effects on the dechlorinating activities of a trichloroethene-dechlorination microbial consortium

Bioresource Technology, 2017
The aim of this work was to study the effects of the presence of oxygen on the dechlorination of trichloroethene by a microbial consortium containing D. mccartyi. The 16S rRNA and reductive dechlorination genes of the functional bacteria and the non-dechlorinators were monitored.
Na, Liu, Haijun, Li, Mengyan, Li, Longzhen, Ding, Chih-Huang, Weng, Cheng-Di, Dong   +5 more
openaire   +2 more sources

Anaerobic dechlorination of perchloroethylene (PCE) in soil by a dechlorinating microbial consortium

Journal of Fermentation and Bioengineering, 1998
An anaerobic dechlorinating microbial granular consortium was developed for biotreatment of soil contaminated with perchloroethylene (PCE) and trichloroethylene (TCE). Microcosm tests were conducted at ambient temperature (22°C) to examine the performance of PCE dechlorination by this consortium.
Weimin Wu, Masayoshi Kitagawa, Shin Taniguchi, Mahendra K. Jain   +3 more
openaire   +1 more source

Dechlorination of wastewater and cooling water

Environmental Science & Technology, 1984
The movement toward dechlorination is propelled by a desire to escape the environmental problems associated with both the residual oxidants and halocarbons produced by chlorination. The chemistry of dechlorination is reviewed with the purpose of showing that questions remain about the environmental effects of the general use of dechlorination ...
G R, Helz, L, Kosak-Channing
openaire   +2 more sources