Sewage effluents were "hailed with delight as being the purest water which the rivers hold".
It has been extensively used in photosynthetic studies, in mass cultivation experiments, and for purifying sewage effluents.
Alternatively, planned IPR usually involves treating the sewage effluents to a very high degree by advanced water treatment processes before releasing the purified water to a lake or groundwater system used for drinking water supply.
Bark also has utility as a source of adhesives and other chemicals (e.g., tannins, dyes, and waxes), in environmental protection applications (e.g., absorption of spilled oil, industrial wastes, and sewage effluents), and as a fuel.
The sewage effluents can be reused for irrigation purpose.
Other sources include farm drainage and sewage effluents.
Increased productivity from sewage effluents can enhance species richness locally.
Point sources, such as sewage effluents, contribute to the NO3 budget of the two watersheds.
In Kuwait, approximately 43.9% of the sewage effluents are reused for agricultural irrigation.
Similarly, high positive loading of nitrate is from domestic sewage effluents.
Besides, the domestic sewage effluents from villages nearby also contributed a substantial amount of pollutants.
