Recycle and Reject Management

Potable water, the pricey elixir is scarce due to population explosion and increased urbanization. The aquatic environment and basic life support system are under threat due to poor wastewater management affecting human health, well being and economic activity.

Sewage Surfeit

Sewage overload causes eutrophication in water bodies and high concentrations of excreted pathogens and chemical contamination. These things cause gastro intestinal diseases which are very common in India where infant mortality rate is very high.


Recycle should be done in concordance with natural ecosystem processes. The sewage treated in SEWAGE TREATMENT PLANT can be used for pisci-culture, irrigation, forestry and horticulture. The byproduct, sludge is nutrient rich manure and high energy source. The application of treated wastewater on land increases the ground water level. Also the human faeces contain 0.5 % phosphorous and used as natural manure. The highly calorific wastewater sludge and its reuse is rich source of energy and heat especially biomass fuel. The treated faecal sludge produces ‘bio solids’ which are excellent soil conditioners.

Reject Water Management

Reject- the effluent sludge from wastewater treatment plant needs to be treated.

Wastewater effluent mixing involves the combining of secondary treated liquid and RO concentrate. The combined stream can be applied to land with permissible limits.

The concentrate volume reduction comprises Electro dialysis Reversal (EDR) which uses electricity to remove salt ions from solution where poorly ionized solute and pathogens are not removed.

Zero liquid discharge technologies include mechanical evaporation and evaporation ponds depending on availability of solar energy and vast land area for land filling the residue.

Securing sustainable water to all should be ensured through effective waste water management.

By taking a pertinent step with great concern for people and environment water the precious resource can be saved for posterity.