CASE STUDY

JASOL WATER POLLUTION CONTROL AND TREATMENT TRUST [ BARMER, ]

4 MLD CETP UPGRADATION AND RECYCLING UP TO ZLD-EPC PROJECT

BACKGROUND CHALLENGE

Jasol is well known hub of small and medium scale textile As the market boomed and due to water scarcity in processing industries. It is small village situated on the bank this region, recycling of waste water is only the of Luni River in of Rajasthan. It is well option. These industries are mainly having dyeing connected with which is hub of textile fabric effluent which has very high TDS, residual dyes, processing industry. There are 100+ small and medium sulphates, phosphorus, colour etc. in raw effluent. textile processing units in Jasol. Wet processing of cotton Existing treatment facility is having SBR technology for and polyester fabric is the major activity of the industries in treatment of effluent where results after treatment is Jasol. Effluent from small and medium scale industries is not suitable for recycling through RO. collected at CETP.

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CASE STUDY

JASOL WATER POLLUTION CONTROL AND TREATMENT TRUST [ BARMER, RAJASTHAN ]

SOLUTION:

We have upgrade the existing 4 MLD CETP with below modifications and addition of new treatment scheme.

1. DAF is added before SBR to remove TSS, O&G and colour for better performance of post treatments. 2. PVA GEL technology from “KURARAY JAPAN” with ASP process is added after SBR for removal of COD/BOD/TN. This can take care of shock loads of COD/BOD coming from industries. With help of PVA GEL technology foot print for ASP process is reduced up to 40%. 3. Tertiary treatment is added after secondary clarifier for removal of further SS. 4. UF + 3 stage RO will be installed for recycling of waste water. Permeate water will be given back to these industries for reuse. Over all recovery of this plant is 82% on feed TDS of 20000 PPM. “TORAY JAPAN” Membranes will be used in this plant. 5. NFRO with 20% recovery will help for further concentration of RO reject, Which will be reduce the size of MEE. NF reject has TDS of around 1,20,000 - 1,30,000 PPM. Which is going to solar pond.

Value at Different Stage of Treatment Parameter Unit Raw Textile Parameter at Parameters at UF Final Treated Water Effluent Secondary Outlet Outlet after RO TDS ppm 20000 20000 20000 <1500 BOD ppm 1800 <30 <10 BDL COD ppm 5000 <200 <100 BDL TTS ppm 4500 <100 BDL BDL

EXECUTIVE SUMMARY

We are doing above mention all modification of existing and installation of new systems on turnkey bases with civil including 7 years O&M. By recycling/reuse of effluent dependency on fresh water is going to less. So, industries will not suffer from lack of water for process.

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