Zero Liquid Discharge
- ZLD treatment process includes Pre-treatment, where the effluent is screened and equalized for secondary treatment.
- The effluent at ambient temperatures enters secondary treatment wherein the high loads of COD and BOD (in the incoming effluent) is reduced in Anaerobic and Aerobic systems by 95%.
- The secondary treatment is succeeded by the tertiary treatment, in which the effluent is filtered through different streams of filters to get effluent with less particulate matter. The effluent coming out of the tertiary treatment enters the evaporators where water is evaporated, which is recycled back in the industry.
- The solids that are crystalized during evaporation have less volume. (depending on the TSS & TDS in liquids it may vary). These solid crystals are disposed after confirming the environmental aspects.
