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Principles of aerobic treatment of food processing wastes: nitrogen and phosphorus relationships
Author(s) -
SHERRARD J. H.,
BENNINGER R. W.,
STALL T. R.
Publication year - 1978
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.1978.tb00793.x
Subject(s) - phosphorus , nitrogen , environmental science , chemical oxygen demand , residence time (fluid dynamics) , sewage treatment , waste management , activated sludge , nutrient , food processing , process (computing) , pulp and paper industry , environmental engineering , chemistry , food science , engineering , computer science , geotechnical engineering , organic chemistry , operating system
Summary Efficiency of treatment of food processing wastes by an activated sludge process was explored in a model treatment unit. Effects of varying the ratio of chemical oxygen demand (COD) to phosphorus and nitrogen were examined. It was found that the mean cell residence time is an important factor in the operation of the process. The results suggest that municipal sewage may be a useful source for the additional nitrogen and phosphorus required for the efficient treatment of food wastes.