ISSN: 0973-7510

E-ISSN: 2581-690X

Hongxiang Chai and Wei Kang
1Key Laboratory of the Three-Gorge Reservoir’s Eco-Environments, Ministry of Education, Chongqing University, Chongqing – 400 045, China.
J Pure Appl Microbiol. 2013;7(Spl. Edn.: April):145-150
© The Author(s). 2013
Received: 03/03/2013 | Accepted: 14/04/2013 | Published: 30/04/2013
Abstract

Considering that mustard tuber wastewater has the characteristics of high salinity, high biodegradability, and high concentration of organic matter, a new and efficient anaerobic pretreatment unit, anaerobic sequencing batch biofilm reactor (ASBBR), was chosen to treat most organic compounds in this wastewater. By changing the temperature of the reactor, the experiment was carried out to find out the influence of temperature on effluent COD, gas production rate, and the content of the sludge dehydrogenase. Results showed that: under the condition of 50% biofilm density, draining ratio of 1/4 and 2 d hydraulic retention time, COD removal rate increased from 63.1 to 93.7% when the temperature increased from 10 to 30°C. According to the influence of temperature on effluent COD, gas production rate, and the content of the sludge dehydrogenase, ASBBR should take 30°C in mustard wastewater treatment.

Keywords

ASBBR, High salinity wastewater, Mustard tuber wastewater, Temperature

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