Characterisation of aerobic bio treatment of meat plant effluent.
Primary treated meat processing plant effluent was characterised for the calibration of the ASM 2 model. The total COD of the wastewater was 500-2,000 mg L(-1). The wastewater contained 15-18% of RBCOD. RBCOD of the meat processing wastewater was from short chain fatty acids (SCFA). Acetic and iso-valeric acids contributed 50% of the total SCFA COD. The inert soluble and particulate COD fractions were each 4%. The COD exerted by carbohydrate was 5% of the total COD. Fat and protein contributed 51% and 44% of the total COD of the wastewater respectively. The average concentrations of ammonia, total phosphorus, total suspended solids and alkalinity were 75 mg L(-1), 34 mg L(-1), 450 mg L(-1) and 275 mg L(-1) CaCO3 respectively. Maximum specific growth rates of heterotrophs and autotrophs were between 1.2-2.5 day(-1) and 0.65-0.8 day(-1). The heterotrophs yield coefficient was 0.63 on a COD basis.
Thayalakumaran
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Institute of Technology and Engineering, Massey University, Private Bag 11-222, Palmerston North, New Zealand.
Bhamidimarri
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Bickers
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D001420:Bacteria, Aerobic / Q000502:physiology*; D001673:Biodegradation, Environmental; D019149:Bioreactors; D002138:Calibration; D019649:Food Industry; D007220:Industrial Waste; D008460:Meat; D010100:Oxygen / Q000737:chemistry; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods*
D007220:Industrial Waste; D010100:Oxygen