Environmental Studies on the Effects of Aquaculture and Drainage Wastewaters on Lake Burullus

Pollution of surface water has increased due to the discharge of industrial effluents, municipal wastes, aquaculture wastewater and agricultural drainage. The present study measured the effects of these pollution sources on Lake Burullus water by monitoring the physical, chemical and microbiological characteristics. Lake Burullus environment was investigated during four seasons of the year 2013/2014. Three locations represented the aquaculture farms drainage; Lake Burullus water (un-manipulated site) and agricultural wastewater were selected for this study. The main results of the study were, NH levels decreased 3 in summer and spring, while NO increased in the same seasons, also total and fecal coliform count increased 2 in summer and Autumn in agricultural wastewater drainage. Conductivity showed high levels in winter and Autumn in aquaculture wastewater. Total hardness levels increased in winter in aquaculture wastewater. Heavy metals levels in this study showed: Cu and Pb increased in winter and spring. Zn and Fe showed high levels in agricultural wastewater in summer and Spring. As and Co were under detectable limits. Also this study showed that Chloroform, dichlorobromomethane and trihalomethane levels recorded high values in summer and Autumn in agricultural wastewater drains.

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