Anaerobic-aerobic Treatment of Dairy Wastewater with National
نویسنده
چکیده
A short term solution for the treatment of dairy waste water is discussed. Discharge rate'is 500 m3lday with a high organic load (2,750 Kg CODlday). Low capital investment (US $ 330,000) and operational (US$ 0.55lm3) costs were required which ought to be competitive with current market prices but within the official environmental norms imposed by the national agency SEDESOL. The problem was solved by remodelling existing lagooning facilities which .were operating below the official norm. Local technology was used with the exception of aereation equipment. The system was made of: a cllarifier, an anaerobic lagoon, an intemediate aerobic lagoon and an effluent polishing lagoon with water hyacinth. Design and supervision was done by UAM-Iztapalapa personnel. Construction and operation by the cheese factory "El Sauz, S.A. de C.V."
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