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Microbial degradation of organic xenobiotics in environment; Biseibutsu ni yoru kankyo kagaku busshitsu no bunkai gijutsu (genba ni okeru omona bunkai biseibutsu no tokusei wo donoyoni tsukamuka, hanno dorikigaku)

Abstract

With an objective to develop technologies to purify sites polluted by harmful chemical substances and elucidate environmental fates of chemical substances, studies have been made on decomposition dynamics for microorganisms in environments. When microorganisms proliferate as a result of decomposition of certain chemical substances, the proliferation rate increases with concentration of the substances, and approaches the maximum proliferation rate. The reaction dynamics changes as a result of affinity of the microorganisms with the chemical substances. With decomposing bacteria with low affinity, the decomposition rate decreases as decomposition progresses, with very little decomposition proceeding at low concentrations. Research and development are required on microorganisms having high substrate affinity even at low concentrations. A reaction device was developed that uses membrane separation to accumulate the above microorganisms efficiently, by which bacteria residence time was extended. Effective microorganisms have substantial difference at the gene level. Induction and emergence of decomposition activity and its loss mechanism also affect the decomposing reaction dynamics. This paper also discusses other factors that affect decomposition in the environments. 16 refs., 9 figs., 4 tabs.
Authors:
Yonezawa, Y [1] 
  1. National Institute for Resources and Environment, Tsukuba (Japan)
Publication Date:
Jan 25, 1996
Product Type:
Journal Article
Reference Number:
SCA: 540320; 320305; 290300; 320604; PA: NEDO-96:930068; EDB-96:101224; SN: 96001610748
Resource Relation:
Journal Name: Shigen to Kankyo; Journal Volume: 5; Journal Issue: 1; Other Information: PBD: 25 Jan 1996
Subject:
54 ENVIRONMENTAL SCIENCES; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 29 ENERGY PLANNING AND POLICY; HAZARDOUS MATERIALS; CHEMICAL SPILLS; BIODEGRADATION; IN-SITU PROCESSING; BIOCHEMICAL REACTION KINETICS; BACTERIA; REPRODUCTION; ENZYME ACTIVITY; ENVIRONMENTAL TRANSPORT; AFFINITY; MICROORGANISMS; AGGLOMERATION; COLONY FORMATION; MEMBRANE TRANSPORT; SEPARATION PROCESSES; RETENTION; TIME DEPENDENCE; GENES; ENZYME INDUCTION; DEACTIVATION
OSTI ID:
247780
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: SKANE7; ISSN 0916-9997; TRN: 96:930068
Submitting Site:
NEDO
Size:
pp. 51-58
Announcement Date:
Jul 13, 1996

Citation Formats

Yonezawa, Y. Microbial degradation of organic xenobiotics in environment; Biseibutsu ni yoru kankyo kagaku busshitsu no bunkai gijutsu (genba ni okeru omona bunkai biseibutsu no tokusei wo donoyoni tsukamuka, hanno dorikigaku). Japan: N. p., 1996. Web.
Yonezawa, Y. Microbial degradation of organic xenobiotics in environment; Biseibutsu ni yoru kankyo kagaku busshitsu no bunkai gijutsu (genba ni okeru omona bunkai biseibutsu no tokusei wo donoyoni tsukamuka, hanno dorikigaku). Japan.
Yonezawa, Y. 1996. "Microbial degradation of organic xenobiotics in environment; Biseibutsu ni yoru kankyo kagaku busshitsu no bunkai gijutsu (genba ni okeru omona bunkai biseibutsu no tokusei wo donoyoni tsukamuka, hanno dorikigaku)." Japan.
@misc{etde_247780,
title = {Microbial degradation of organic xenobiotics in environment; Biseibutsu ni yoru kankyo kagaku busshitsu no bunkai gijutsu (genba ni okeru omona bunkai biseibutsu no tokusei wo donoyoni tsukamuka, hanno dorikigaku)}
author = {Yonezawa, Y}
abstractNote = {With an objective to develop technologies to purify sites polluted by harmful chemical substances and elucidate environmental fates of chemical substances, studies have been made on decomposition dynamics for microorganisms in environments. When microorganisms proliferate as a result of decomposition of certain chemical substances, the proliferation rate increases with concentration of the substances, and approaches the maximum proliferation rate. The reaction dynamics changes as a result of affinity of the microorganisms with the chemical substances. With decomposing bacteria with low affinity, the decomposition rate decreases as decomposition progresses, with very little decomposition proceeding at low concentrations. Research and development are required on microorganisms having high substrate affinity even at low concentrations. A reaction device was developed that uses membrane separation to accumulate the above microorganisms efficiently, by which bacteria residence time was extended. Effective microorganisms have substantial difference at the gene level. Induction and emergence of decomposition activity and its loss mechanism also affect the decomposing reaction dynamics. This paper also discusses other factors that affect decomposition in the environments. 16 refs., 9 figs., 4 tabs.}
journal = []
issue = {1}
volume = {5}
journal type = {AC}
place = {Japan}
year = {1996}
month = {Jan}
}