Sewage Effluent: Explanation

Sewage Effluent

Sewage Effluent can occur in two different situations. The first occurs when domestic sewage is treated to secondary or tertiary levels. Though this only releases a low toxicity, if this is spread into water it can spread rapidly. The toxin can stimulate groth within biological receptor populations through nutrient enrichment. The second occurs when domestic sewage that contains industrial waste within it is exposed to these secondary or tertiary treatments. The effects are similar to the first, but it contains low concentration of contaminants. These may also reproduce in the water. Enviormentally, the impact of treated sewage effluent is the spread to freshwater, estuarine, and marine enviorments.