Discharge into Lakes

 Being larger and deeper than rivers, lakes are subject to temperature stratification and less pronounced natural mixing via currents. Therefore, the lower strata in a lake are commonly subject to conditions of low temperature and low dissolved oxygen that slow down the decomposition of organic matter. Consequently, it is essential to ensure which appropriate mixing occurs when wastewater effluent is discharged into a lake in order to prevent the formation of an anaerobic stratum. Within shallow lakes, effluents are adequately dispersed by wind-induced currents that ensure appropriate mixing.