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Title: Anaerobic biodegradation of cyanide under methanogenic conditions

Abstract

Upflow, anaerobic, fixed-bed, activated charcoal biotreatment columns capable of operating at free cyanide concentrations of {gt}100 mg liter{sup {minus}1} with a hydraulic retention time of {lt}48 h were developed. Methanogenesis was maintained under a variety of feed medium conditions which included ethanol, phenol, or methanol as the primary reduced carbon source. Under optimal conditions, {gt}70% of the inflow free cyanide was removed in the first 30% of the column height. Strongly complexed cyanides were resistant to removal. Ammonia was the nitrogen end product of cyanide transformation. In cell material removed from the charcoal columns, ({sup 14}C) bicarbonate was the major carbon end product of ({sup 14}C) cyanide transformation.

Authors:
; ;  [1];  [2]
  1. E.I. DuPont and Co., Inc., Wilmington, DE (USA)
  2. Vanderbilt Univ., Nashville, TN (USA)
Publication Date:
OSTI Identifier:
5314464
Resource Type:
Journal Article
Journal Name:
Applied and Environmental Microbiology; (United States)
Additional Journal Information:
Journal Volume: 57:6; Journal ID: ISSN 0099-2240
Country of Publication:
United States
Language:
English
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CYANIDES; BIODEGRADATION; AMMONIA; CARBON 14 COMPOUNDS; ETHANOL; METHANOGENIC BACTERIA; METHANOL; PHENOL; TRACER TECHNIQUES; ALCOHOLS; AROMATICS; BACTERIA; CARBON COMPOUNDS; CHEMICAL REACTIONS; DECOMPOSITION; HYDRIDES; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; ISOTOPE APPLICATIONS; LABELLED COMPOUNDS; MICROORGANISMS; NITROGEN COMPOUNDS; NITROGEN HYDRIDES; ORGANIC COMPOUNDS; PHENOLS; 560300* - Chemicals Metabolism & Toxicology

Citation Formats

Fallon, R D, Cooper, D A, Henson, M, and Speece, R. Anaerobic biodegradation of cyanide under methanogenic conditions. United States: N. p., 1991. Web.
Fallon, R D, Cooper, D A, Henson, M, & Speece, R. Anaerobic biodegradation of cyanide under methanogenic conditions. United States.
Fallon, R D, Cooper, D A, Henson, M, and Speece, R. Sat . "Anaerobic biodegradation of cyanide under methanogenic conditions". United States.
@article{osti_5314464,
title = {Anaerobic biodegradation of cyanide under methanogenic conditions},
author = {Fallon, R D and Cooper, D A and Henson, M and Speece, R},
abstractNote = {Upflow, anaerobic, fixed-bed, activated charcoal biotreatment columns capable of operating at free cyanide concentrations of {gt}100 mg liter{sup {minus}1} with a hydraulic retention time of {lt}48 h were developed. Methanogenesis was maintained under a variety of feed medium conditions which included ethanol, phenol, or methanol as the primary reduced carbon source. Under optimal conditions, {gt}70% of the inflow free cyanide was removed in the first 30% of the column height. Strongly complexed cyanides were resistant to removal. Ammonia was the nitrogen end product of cyanide transformation. In cell material removed from the charcoal columns, ({sup 14}C) bicarbonate was the major carbon end product of ({sup 14}C) cyanide transformation.},
doi = {},
journal = {Applied and Environmental Microbiology; (United States)},
issn = {0099-2240},
number = ,
volume = 57:6,
place = {United States},
year = {1991},
month = {6}
}