NDLI: Screening and Application of High Effective Functional Bacteria for Subsequent Treating Leachate Biological Treatment Effluent

Content Provider	IEEE Xplore Digital Library
Author	Xie Zhi-gang
Copyright Year	2010
Abstract	To improve refractory organic pollutants degradability of landfill leachate biological treatment effluent, high effective functional bacteria for subsequent treating the effluent were cultured by bioaugmentation. Three predominant bacteria for subsequent treating organic refractory pollutants were cultured and screened from sludge in aeration pool of biochemical treatment system. Based on 16S rDNA identification, the three bacteria are named Mari-nobacter (coded Y1), Acinetobacter (coded Y2) and Escherichia (coded Y3), respectively. In this experiment research, the Mari-nobacter had favorable degradability to organic pollutants and the removal of absorbance at 254nm (UV254) of landfill leachate biological effluent reached 63.9%. The experiment also shows that mixed bacteria have more degradability than single bacterium. Functional bacteria were scaling up cultured, and then inoculated into biological-activated carbon (BAC) reactor by physical circle absorption method. The BAC column operating experiment shows that the high effective functional bacteria also have favorable degradability to organic pollutants in the reactor with diversiform ecological environment. The control experiment shows that the natural start-up BAC has significant degradation capacity to organic pollutants with molecular weight M of 10 ~ 5 k Da, while the inoculums' start-up BAC with functional bacteria keeps removal rate of 76.1% to organic pollutants with molecular weight M of 100 ~ 30 k Da, and reaches removal rate of. 80.9% to organic pollutants with molecular weight M exceeding 100 k Da. It was testified that the BAC reactor with functional bacteria can increase biochemical treatment efficiency of landfill leachate, UV254 removal efficiency of BAC with functional bacteria is 12% higher than it of BAC without functional bacteria.
Starting Page	1
Ending Page	4
File Size	249600
Page Count	4
File Format	PDF
ISBN	9781424447121
ISSN	21517622
DOI	10.1109/ICBBE.2010.5515030
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-18
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microorganisms Electromagnetic wave absorption Effluents Carbon dioxide Land pollution Biological information theory Inductors Sludge treatment Thermal degradation Testing
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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