A model for cost estimation of system for piggery wastes treatment ponds: a case study

Pesquisa Operacional

Waldir Medri¹  Rejane Helena Ribeiro Da Costa² 

[1] ,Universidade Estadual de Londrina Departamento de Matemática Aplicada Londrina PR

关键词: costs;    piggery wastes;    ponds;    treatment;    custos;    dejetos de suínos;    lagoas;    tratamento;   

DOI  :  10.1590/S0101-74382003000300006

来源: SciELO

【 摘 要 】

This article presents the results from the monitoring of a system of ponds for the treatment of piggery wastes, carried out during a 20 months period, with the objective to determine design parameters for the optimization of the treatment system. A series composed of two anaerobic ponds, one facultative pond and one water hyacinth pond, gave an efficiency of 97% in the removal of BOD5, 93% for total phosphorus, 91% for total Kjeldahl nitrogen and a removal of 7 log units for fecal coliforms. A model of the optimization incurred in the treatment of these wastes was developed, within economic concepts.

【 授权许可】

CC BY   
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