Pallavaram Tanners Industrial Effluent Treatment Co. ltd., (PTIETC)
Pallavaram Tanners Industrial Effluent Treatment Company Ltd. (PTIETC) established in 1989 and implemented the
Common Effluent Treatment Plant (CETP) during February 1995 for the benefit of 152 member tanneries with a
capacity of 3000m3/day. After pre-treatment, the effluent from individual tanneries are collected in 7 zonal
pumping stations and pumped to the CETP. The CETP is being periodically upgraded with
improved Aeration System using Jet Aspirators, Advanced Oxidation with Ozone Treatment, etc.
by complying the Environmental norms and directions of pollution control authorities.
| Number of member tanneries connected to CETP | 129 |
|---|---|
| Date of commissioning | 01.02.1995 |
| Area of CETP premises | 3 Acresplus |
| Wastewater collection and conveyance pipeline from Member tanneries to CETP | 5Km |
| Designed capacity of the CETP | 3000 m3/day |
| Total capital investment in 1995 | Rs.9.7 crores |
| Upgradation of CETP in 1995 | Rs.6.00 crores |
| Upgradation of CETP in 2005 | Rs.2.00 crores |
| Upgradation of CETP in 2012 | Rs.37.80 crores |
| Upgradation & TDS management project – On going | Rs.45.80 + 7.23 crores |
| Treated effluent conveyance system from Pallavaram PTIETC CETP to Perungudi STP | 15km |
The CETP is designed in two parallel modules so that one part of the CETP could be operated when it receives a lower
volume of effluent. Alternative standby arrangements such as standby pumps, generator sets for power backup have been
provided for continuous operation of 24 hrs in a day.
The salient and advanced technological activities under the ongoing upgradation project with financial
support of DPIIT, GoI and GoTN are listed below:
- Improved Pretreatment and Monitoring system in individual tanneries
- Jet cleaning system for better occupational health, safety & maintenance of the wastewater conveyance system from member units to CETP.
- Improved Equalization & Aeration by adopting Jet aspirators.
- Tertiary treatment units such as DMF, UF, etc.
- Water recovery from two stage RO system for reuse by member tanneries & CETP.
- Mechanically dewatered sludge is further dried in sludge transit / storage yard and disposed through TNWMS in Gummidipoondi.
- To overcome the technical challenges of MEE provided for Pallavaram CETP which receives effluent with low TDS from member tanneries processing from semi-finish to finishing operations, an alternative sustainable option of mixing/dilution of treated tannery effluent with domestic sewage at Perungudi STP is being implemented as per the approval and direction of TNPCB. This project component is under final stage of implementation through CMWSSB as a deposit work.
