Removal characteristics of disinfection by-products formation potential by bioaugmentation activated carbon process
WANG Guang-zhi1, LI Wei-guang2, HUANG Li-kun1, GAO Yu-nan1, ZHANG Duo-ying1
1.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China;2.State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090,China
Abstract:
The high-active bacteria were screened from 8 dominant bacteria obtained from the natural water body,and then the bioaugmentation activated carbon was formed by hydraulic immobilization of the high-active bacteria. Plant-scale studies on removal characteristics of disinfection by-products formation potentials (DBPFP) by bioaugmentation activated carbon process were conducted for micro-polluted raw water treatment. The results show that the bioaugmentation activated carbon process has adopted better purification efficiency to THMFP and HAAFP than traditional biological activated carbon process,and that average removal efficiencies of THMFP and HAAFP can reach 35% and 39.7% during the test period,increasing by more than 10% compared with traditional biological activated carbon process. The removal efficiencies of THMFP and HAAFP are stable because of the biodegradation of the high-active bacteria and the adsorption of active carbon. The biodegradability of CHCl3 formation potential is better as compared with that of CHCl2Br and CHClBr2 formation potentials among THMFP,and high removal efficiency of CHCl3formation potential is obtained by bioaugmentation degradation of the high-active bacteria. The biodegradability of HAAFP is better in comparison with that of THMFP,and the chemical properties of HAAFP are propitious to adsorption of activated carbon. Thus,HAAFP is on predominance during the competitive removal process with THMFP.
Key words: bioaugmentation activated carbon disinfection by-products formation potential high-active bacteria
DOI：10.11916/j.issn.1005-9113.2010.03.006
Clc Number:X703
Fund:
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Removal characteristics of disinfection by-products formation potential by bioaugmentation activated
本站小编 哈尔滨工业大学/2019-10-23
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