Monitorização do Funcionamento da ETAR de um Matadouro – Caso de Estudo
Keywords:
matadouros, estação de tratamento de águas residuais (ETAR), monitorizaçãoAbstract
O presente trabalho teve como objetivo caracterizar as águas residuais produzidas num matadouro, determinar as eficiências do processo de tratamento e propor medidas de melhoria. Da caracterização das águas residuais constatou-se que o efluente final cumpriu com os valores limite de emissão, exceto para o fósforo. De um modo geral, obtiveram-se eficiências de remoção dos poluentes superiores a 73%. Em relação aos parâmetros operacionais, verificou-se que o valor de F/M, entre 0,05 e 0,15 kgCBO5.kg-1MLVSS.d-1, é importante para aumentar a eficiência do processo. Aumentando a quantidade de coagulante e floculante a adicionar nas DAF’s, ocorrerá uma maior produção de lamas e consequente remoção de fósforo. Constatou-se que a manutenção adequada da purga de lamas permite a redução da biomassa no reator e aumenta a razão F/M.Downloads
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