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Microbiological treatment of fertilizer solid waste material containing phenoxyalkanoic herbicides 2,4‐D and MCPP
Author(s) -
Oh KyeHeon,
Tuovinen Olli H.
Publication year - 1994
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280610404
Subject(s) - mecoprop , fertilizer , leaching (pedology) , chemistry , aqueous solution , biodegradation , propionate , alachlor , nuclear chemistry , environmental chemistry , waste management , agronomy , soil water , organic chemistry , atrazine , environmental science , pesticide , mcpa , engineering , soil science , biology
The purpose of the work was to evaluate the feasibility of a biological treatment process for herbicide‐containing solid waste material from a fertilizer‐manufacturing plant. The waste contained approximately 1·5% (w/w) 2,4‐dichlorophenoxyacetate (2,4‐D) and 1·4% (w/w) 2‐(2‐methyl‐4‐chlorophenoxy)propionate (MCPP, mecoprop). Both herbicides could be dissolved from the bulk matrix (vermiculite) within 3 days of chemical leaching in aqueous solution. Upon subsequent inoculation of herbicide‐degrading bacterial consortia derived from soil samples adjacent to the plant, 2,4‐D was completely degraded in the presence of up to 5% (w/v) pulp densities. The biodegradation of MCPP was concurrent but incomplete. The degradation process was acid‐producing, and pH control enhanced the rates of herbicide degradation.