CEM India CEM India

CEM India - Abstract

 
CEM India

 
CEM India



Abstract Title: CASE STUDY ON INDUSTRIAL POLLUTION & MONITORING OF PARADIP , ODISHA
Session Choice: Industry Case Studies
Presenter Name: Ms TWINKLE MOHANTY
Company/Organisation: ODISHA STATE POLLUTION CONTROL BOARD
Country: India

Abstract Information :

The individual township of Paradip has been evaluated by CPCB with CEPI score of 69. 26 i.e. at the verge of getting into the fold of critical polluted area, though now it is declared as “Severely Polluted”. The major industries in the Paradip area are M/s. IOCL (Paradip Refinery) of 15 MMTPA, M/s. Paradip Port Trust of cargo handling capacity 93.6 MMTPA, M/s. IFFCO Ltd. of 2 MTPA of DAP, M/s. PPL of 1.5 MTPA of DAP and M/s. Essar Steel & Power Limited of 6 MTPA pellet with 60 MW power. As State of Odisha is rich in mineral sources, a total of 140 industries under 17 categories of highly polluting industries are operating in Odisha mostly in the sector of Iron & Steel, Power, Aluminium smelter, Cement, Pulp & Paper etc. All these industries have high potential for emission of air pollutants & discharge of water pollutants & also generate substantial amount of solid waste.

CPCB has instructed to Odisha State Pollution Control Board (OSPCB) on 05.02.2014 to direct all the industries under 17 categories of highly polluting industries to install CEMS & CEQMS at stack & discharge outlet respectively with provision of data transmission to the server of SPCB & CPCB by 31.03.2015 and also to obtain Bank Guarantee (BG) for such installation to ensure timely compliance. Before such direction OSPCB has already installed its GPRS based RT-DAS server and CEMS data was even received from certain large scale industries. However, OSPCB issued direction to all industries to submit BG with validity for two years & to complete the installation & commissioning of the above systems by 31.03.2015. The same has also been incorporated as condition in Consent to operate orders for compliance. Since all these developments were completely new to the units and as no protocol, knowledge base & certification agency was prevailing in India, it took time to the industrial houses to select quality equipment from good vendors. Compliance to the direction was involved with tedious technical issues like

1. Choice of technology, suitable/appropriate to their quality & quantity of emission
2. Suitability of the equipment against local meteorological conditions for trouble free/error free functioning
3. Selection of genuine vendors after deciding on technology of CEMS/CEQMS keeping cost in mind yet without compromising the basics of (1), (2), & (3)
4. Choosing a right agency to facilitate installation of appropriate hardware & software for data acquisition
5. Transmission of uninterrupted and tempered proof free data to the server of OSPCB & CPCB
6. Service & availability of spares.

BG was released for those units complying with the direction & forfeited for the non-complying industries after field verification. About 95% of units have commissioned their online CEMS & CEQMS in stipulated time period.

Odisha is one of the first State in India to implement online CEMS & CEQMS in time. There are 579 CEMS & 76 CEQMS with real time data sent through Y-cable from industries received at RT-Das server at OSPCB. To ensure regular maintenance & operation of the systems CPCB has come out with CEMS Guidelines in July 2017 & the revised version on August 2018 with detailed procedure for selection of CEMS, installation, calibration & data validation protocols. Odisha have started calibration & data validation of PM-CEMS in April-2018 and subsequently will cover all gaseous CEMS & effluent monitoring stations for 17 categories unit. The difficulties faced during calibration & data validation are

1. Location sampling points don’t confirm to 8D/2D standard
2. Relocation of sampling points was not possible in the old stack
3. Entire ducting network needs to be rebuild,
4. Installation of CEMS at all ducts were expensive
5. Monitoring at variable load
6. limited number of NABL accredited laboratories
7. Dust deposition on probes and leakage test show poor maintenance of analyzer
8. CEMS vendors don’t follow the protocol for calibration, calculation of exact dust factor based on manual sampling
9. Lab analysis is not always feasible at the plant site & time consuming with triplicate sampling
10. Analyzer show abnormal values & sometime constant values.

OSPCB is the first in the country to introduce a Star Rating programme with Energy Policy Institute at the University of Chicago in September 2018 for better environment compliance. Ratings are given based on two parameters

1. Emission averaged over a period of time compared with permissible limit
2. Data availability as prescribed in CPCB Guidelines.

One month time is given to industry to change the analyzer if it is not as per the CPCB protocol. Instruction has been issued to plant head in case the emission exceeds the prescribed standard to take corrective action immediately.

The detail experience regarding Continuous Emission Monitoring System (CEMS), CEMS Architecture (SPCB, Odisha), RT-DAS Architecture, Online Stack Monitoring of Industries, Challenges, Star rating analysis will be deliberated in presentation.