fulltext.study @t Gmail

Enhancement of organic pollutant biodegradation by ultrasound irradiation in a biological activated carbon membrane reactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
36230 45125 2005 6 PDF Available
Title
Enhancement of organic pollutant biodegradation by ultrasound irradiation in a biological activated carbon membrane reactor
Abstract

The effect of ultrasonics in a biological activated carbon membrane reactor on the removal of organic pollutants in micro-polluted water was investigated through parallel experiments. Results showed that ultrasonics at a power of 10 W could enhance biological activity significantly. The effect of ultrasonic treatment could be maintained for 24 h, so the time interval for ultrasonic treatment should be set at 24 h. The ultrasonic effect on biodegradation was studied through the organic load of the bioreactor, 2,3,5-triphenyl tetrazoliumchloride-dehydrogenase activity (TTC-DHA) of biological activated carbon and the apparent molecular size distribution (AMSD) of the organic compounds in influent and effluent water. The ultrasonic field in the reactor was analyzed and the mechanism of biological activity enhancement by ultrasonics was investigated.

Keywords
DHA, dehydrogenase activity (μgTF (mL h)−1); DO, dissolved oxygen (mg/L); HRT, hydraulic retention time (h); UV254, UV absorbance at 254 nm (cm−1)Ultrasonic; Biological activity; Membrane bioreactor; Micro-polluted water; Removal efficiency; Enhancement
First Page Preview
Enhancement of organic pollutant biodegradation by ultrasound irradiation in a biological activated carbon membrane reactor
Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 40, Issue 9, September 2005, Pages 3002–3007
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering