Some practical approaches of the poultry slaughter wastewater treatment by apply physico-chemical treatment

Author:

Zaharia Andrei,Nedeff Valentin,Frunza Nicolata,Nedeff Florin,Barsan Narcis,Chitimuş Dana

Abstract

As a result of slaughtering processes, large volumes of effluents with high concentrations of organic, inorganic and microbiological pollutants are generated. The pollutants composition must be reduced by apply simultaneous processes in order, to obtain an proper effluent before discharge. In this paper, the efficiency of the physico-chemical treatment process was determined, in which a rotary sieve and the Dissolved Air Flotation (DAF) system were used. The efficiency of the DAF process was determined by comparing the quality indicators of effluents from a poultry slaughterhouse, analyzed both before and after treatment. To carry out the analysis, the samples were taken in October and November 2023, and they were determined by using certified laboratory procedures. After setting the DAF process to an optimal operating regime and chemicals dosages, the quality indicators were significantly reduced, reaching a maximum of 99%, 98%, 93%, 92%, 85%, 84%, for TSS, PO4, NO3, TKN, BOD5 and COD.

Publisher

EDP Sciences

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