Related Experiment Video
Updated: Sep 29, 2026

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor
Published on: October 15, 2015
Removal of 3-chlorobenzoate using an upflow anaerobic sludge blanket reactor under light conditions
S Sawayama1, K Tsukahara, T Yagishita
1Biomass Research Group, Institute for Energy Utilization, National Institute of Advanced Industrial Science and Technology, Onogawa, Tsukuba, Ibaraki, Japan.
Abstract:
The possibility of 3-chlorobenzoate removal from water using an upflow anaerobic sludge blanket (UASB) reactor without the addition of any extra dechlorinating culture under light conditions has been studied on a laboratory scale. Benzoate removal was observed in the first three months of operation under light conditions, but the 3-chlorobenzoate removal was not observed. After three months of operation under light conditions, the 3-chlorobenzoate concentration in the UASB reactor effluent gradually decreased to less than 1 mg x h(-1). The 3-chlorobenzoate concentration in the effluent did not increase under dark conditions. The DOC concentration in the effluent decreased according to the removal of the 3-chlorobenzoate by the UASB granules. These results indicated that granules in the UASB reactor provided the 3-chlorobenzoate removability after 80-100 d of adaptation to the 3-chlorobenzoate, and that the UASB reactor is useful for 3-chlorobenzoate removal.
Related Concept Videos
Biological Treatment of Effluent and Waste Water
Microbial Bioremediation of Pesticides
Microbial Wastewater Treatment
Bioremediation
Microbial Bioremediation of Hydrocarbons
