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Dec 7, 2020Keywords:
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Physico-chemical characterization of liquid waste from sugar production unit labs in Zuenoula, Côte d'Ivoire
Abstract
Managing liquid waste from the laboratories of Integrated Agricultural Unit (IAU) of Zuénoula (Côte d´Ivoire) is a major concern for the decision-makers of the company, who are working to solve this problem in their sustainable development policy. This work aims at quantifying liquid waste from the agronomic laboratories and factory of IAU of Zuénoula and to assess their level of pollution. The quantities of waste produced daily are estimated at 28.5 L, 52.6 L and 2600 L respectively for waste from the agronomy laboratory, the factory laboratory and from the rinsing water from latter's glassware. The following parameters were analyzed, temperature, pH, conductivity, turbidity, total suspended solids, COD, BOD5, total nitrogen, total phosphorus, zinc, copper, lead and mercury. The results of these analyzes generally showed that waste produced did not comply with national standards. In particular, the level of lead was very high in these liquid wastes and reached 160 times the standard value. These results require a waste treatment system, which would reduce all the parameters, in particular those of the most noxious metals (lead and mercury).
Keywords: Heavy metals, Pollution, Industrial unit, Ivorian standards, Wastewater.
