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Pernambut town, situated in Vellore district at 50 km from Vellore, is one of the main and oldest centres for leather processing industry. There are 36 tanneries presently functioning in this tannery cluster, in two sectors, namely Bakkalapalli and V.Kota Road sectors. Tanneries in this cluster mainly processes vegetable tanned sole leather from raw to wetblue and semi finished to finished.

TALCO Pernambut Tannery Effluent Treatment Company Limited (PERTEC) conceived two CETPs for the then operating and proposed tanneries. The Bakkalapalli sector CETP serves for 19 tanneries another for V.Kota Road sector comprising 18 tanneries. Subsequently Bakkalapalli CETP alone could be completed for a capacity of 900 m3/d and 19 tanneries connected to this CETP are functioning with all necessary treatment measures. At present there are 18 tanneries are operating with their own individual effluent treatment plants. All these units, 18 from Bakkalappally sector and another 18 from V Kota sector were made part of the ZLD system proposed for this CETP.

The CETP, by name Pertec is managed by a company registered under the Indian Companies Act and managed by a BoD, drawn from its members. Mr. C.M. Basheer, a prominent tanner of the area, is currently the Chairman of the company.

Contact details of the CETP:
Talco Pernambut Tannery Effluent Treatment Co. Ltd
Bakkalapalli Sector, # 299/A, High Road
Pernambut – 635 810.
Telephone: +91-4171-233 093 / 232 584 / 232 245
Fax: +91-4171-230 659 / 232 584.

Project Components

The ZLD system proposed in Pertec CETP consists of the following:

  1. CETP upgradation: new mechanical screen, pre-settler, modification of equalisation tank with new mixing system, new mechanisms and bridges for primary & secondary clarifiers, additional mechanical sludge dewatering, new aeration system complete with civil, blower and diffusers, softening to remove hardness and improvement in monitoring.
  2. RO system: Pre-treatment filtration, organic scavenger, ultra-filtration, two stage reverse osmosis and automated control system for the same.
  3. Mechanical Evaporation of RO reject: Five effect evaporation with thermal vapour re-compression system and pusher centrifuge for separation of salts.
  4. Salt disposal yard: special disposal unit to store generated salt for two years at full capacity.
  5. Recovered water conveyance system: overhead tanks and piping system with metering for conveying the recovered water back to individual tanneries. Individual tanneries are providing individual storage tanks with more than one day storage capacity.

The turnkey implementation of the project was awarded to Hyderabad based Ramky Infrastructure Ltd based on a two stage competitive tendering.  The contract value is Rs. 19.89 crores and the total project cost including administrative charges is Rs. 20.88 Crores.

Current Position

The project was functionally completed as early as in March 2013. The upgraded project was handed over to the CETP and contractor for O&M in October 2014. The plant has been in regular operation since then.

Recently some supplementary activities were also taken up in the CETP which included new seamless tubes for evaporator and additional feed pumps for evaporation system.

During the year 2016-2017, it is reported by the CETP, they incurred an expenditure of Rs. 4.53 crores as O&M cost of the facility.
Project Photos

RO building

Tertiary treatment system

New Aeration Tank

Filter Presses

UF skid

RO skid

Evaporator system supplied

Overhead Tank

ZLD Section

Upgraded CETP


Salt Produced from Evaporation in transit to the storage yard

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