AN INTEGRATED PLANT FOR TREATMENT OF RAW WATER USING DISCARDED SLUDGES TO PRODUCE DRINKING WATER

摘要

This invention relate to an integrated plant for treatment of raw water using discarded aludgasfrom the plant for producing safe drinking water comprising a Sedimentation tank (11), having an inlet (11la) for introduction of raw water, an outlet (lib) of said sedunentation tank being connected to an inlet of a Rapid Mixing Device/Flash Mixer, which is connected to a clarifier/clarifloculator (3), the flash inixer (15) being connected to an coagulating agent source (2) and SRP(L) storage tank (7), the clarifloculator being connected to a Rapid Sand Filter Bed (12) to obtain purified drinking water, wherein the discarded sludge from the clarifloculator and back wash from the filter bed is stored in a sludge settling tank (4), the said tank conveying settled sludge into a Concentrated Sludge Storage (CSS) Tank (8), supernatant from the said tank being recirculated into the sedimentation tank (11), the said CSS tank (8) being in communication with a Sludge-Reagent-Reaction (SRR) chamber (5), to produce a Sludge-Reagent Product (SRP) followed by separation of SRP (Liquid) as supernatant (10).