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Landfill co‐disposal of phenol‐bearing wastewaters: Organic load considerations
Author(s) -
Watsoncraik Irene A.,
Senior Eric
Publication year - 1990
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.280470304
Subject(s) - phenol , chemistry , dilution , wastewater , biodegradation , activated sludge , chromatography , degradation (telecommunications) , methanol , environmental chemistry , organic chemistry , environmental engineering , environmental science , telecommunications , physics , computer science , thermodynamics
A multi‐stage model, operated with single elution, was used to investigate the effects of organic loadings on the attenuation of a model phenolic wastewater in domestic refuse. Although 100% dissimilation of influent phenol (2–5 mmol dm −3 ) was recorded at a dilution rate of 0.007 h −1 , partial inhibition of both phenol degradation and species competing with methanogens for a common electron donor(s) was apparent at concentrations ±4 mmol dm −3 . On extended perfusion with 8 mmol phenol dm −3 , the progressive inhibition of phenol dissimilation was not obviated by nutrient supplementation. Simultaneous degradation of the catabolic intermediate, hexanoic acid, and elevated methane release rates suggested that the transformation of phenol to hexanoate was rate limiting.