CEEW - Compliance emission monitoring.pdf

CII compliance monitoring

1. COMPLIANCE MONITORING
IMPROVING THE ENVIRONMENTAL PERFORMANCE OF COAL UTILITY PLANTS I N INDIA
SANJEEV K KANCHAN
ADVISER-CEEW
MAY-JUNE 2022

2. •Compliance Monitoring Requirement
•Manual Monitoring Vs Real-time Monitoring
•Implementation of Manual monitoring
•Implementation of CEMS, CEQMS, DAS
•Checklists for Self-inspection and Assessment
•Q&A
PRESENTATION OUTLINE
Disclaimer:Views, findings and publications of the
International Centre for Sustainable Carbon do not
necessarily represent the views or policies of the IEA
Secretariat or its individual member countries.
SANJEEV K KANCHAN
A D V I S E R , C E E W

3. COMPLIANCE MONITORING REQUIREMENT
•Mandatory installation of CEMS, CEQMS, CAAQMS since February 2014
•Almost all the Utility plants have installed –around 600+ units (out of 6000 industrial units across 17
categories industries) India
•Data from these utilities goes to CPCB and respective SPCBs/PCCs
•Installation of Real-time monitors are also in CPPs-data goes to SPCBs/PCCs (to CPCB only if falls under
17 category industries)
•For compliance Monitoring requirement for Utilities includes:
✓CEMS installation (Certified/ Non-certified) for all required parameters
✓Adequate provisions in the stack or duct for Manual and Real-time monitoring
✓DAS system with direct data transfer facility
✓Remote calibration facility
✓Compliance to the stipulated new norms, as mandated by SPCB (CTO)
✓Min 85% data availability
✓Standardized data (e.g. mg/Nm3 in case of CEMS) against set norms

4. COMPLIANCE MONITORING
REQUIREMENT
Parameters to Monitor (Manual and Real-time)
•PM,
•SO2,
•NOX (NO + NO2)
•Total gaseous Hg-(for those have been asked in EC)
•A good number of utilities have installed Hg –CEMS without
mandated in EC
•Many of the CPPs have installed Hg-CEMS
•In many cases Hg-CEMS requirement were added in CTO
•Emission Flow rate-mandated lately for all industries
•Effluent: pH, TSS, Temperature (for discharge), O&G, COD,
TDS etc.
•ZLD-Flow meter and Camera at outlet
•Many ZLD-also installed set of CEQMS at outlet
•Sewage: pH, BOD, COD, TSS, FC

5. CHALLENGES IN IMPLEMENTATION -AFFECTS DATA
INITIAL CHALLENGES CURRENT CHALLENGES

6. •PM-CEMS: wrong installation giving wrong
data is the widespread challenge
✓Many installations in the same plane
affecting each other
✓Installation in un-stabilized gas flow
section
✓Calibration is always poor
•Gaseous CEMS: Lack of maintenance
affecting data
✓Extractive CEMS-wrong termination
of heated line, cold spots in sample
line, temperature and flow not
maintained
✓In-situ CEMS: no proper approach for
maintenance
•Missing Data standardization (mg/Nm3)-
prevalent issue
CEMS INSTALLATION CHALLENGES

7. •PM-CEMS
•SO2-CEMS
•NOx-CEMS (NO CEMS + NO2
converter)
•Hg CEMS (Gaseous)
•Flow
CEMS INSTALLATION-LOCATION & POSITION

8. MANUAL MONITORING: for Calibration/
Recalibration for PM CEMS and Data
validation and comparison with lab-
monitored data for both PM and gaseous
•PM/Dust monitoring-Main problem
•Level of port-holes in the stack/duct
•Number of port –holes
•Number of traverse points
•CEMS calibration/Recalibration-
protocol and intervals
✓Calibration:
✓8D/2D: 3 load x 3 points
✓4D/4D: 3 load x 3 points
✓Recalibration: 3 loads x 2 points
•Load change issue
STACK MANUAL MONITORING CHALLENGES
I.D. >=5 52
Minimum traverse point requirement for manual monitoring
(CPCB-emission regulation part-3)
[i]
Traverse points coverage in circular and rectangular stacks/ducts
(CPCB-emission regulation part-3)
[i]

9. Manual
monitoring ports
•Manual/CEMS monitoring at non-stabilized gas flow positions-gives wrong dust factor and data
•Manual/PM CEMS have high potential to impacts the data quality-cross interference, vibration, APC
device, gas moisture levels etc.
INSTALLATION AND MONITORING CHALLENGES

10. DATA STANDARDIZATION
Standardization Standardization-Example

11. DIRECT DATA TRANSFER
Integrated advance DAS, Direct –two way data transfer
Remote calibration for Gaseous CEMS. In-built Calibration cell?

12. STACK REQUIREMENT FOR CEMS
KEY MOUNTING INFRASTRUCTURE , UTILITIES AND SAFETY
•Strong platform with safe approach/ladders/stair.
•If mounting location is >45m then proper stair case/ elevator
•Monkey ladder not preferred for height > 30 mtrfrom the ground
•For vertical ladder: caged, every 10-12m-a landing platform
•Strong, maintained ladder, continued through platform to some distance above for safe landing.
•Platform railing at least reach 1.2m in height
•Min. platform width: metallic stacks-800mm, concrete stack-1000mm.
•All the cables, instrument air tubings-properly laid & clamped
•Uninterrupted, properly earthed power supply, Lightning arrestor wire line
•Proper and quality Instrument air connection as per demand

13. CHECKLIST FOR CEMS
CEMSCHECKLIST
•Dailyzerodriftcheck
•FortnightlyZeroandSpandriftcheck
•Adjustmentduringzeroandspanchecknotallowed
•Maintenanceregister-markdailyactivitiesdoneforparticularCEMS
•Calibration-duringinstallation
•Remotecalibrationisrequired
•Asperguideline-MultiplexingofCEMSnotallowed.
•Performancetests-fornon-certifiedonesduringinstallation
•IfExtractiveCEMS-checkifheatedlinesareheatedandterminatedproperlyandnocoldspots,ordepositionsinthe
samplingtubevisible.
•CheckifCold-drytechnology,moistureremovalthroughperistalticpumpsarehappeningandthesameisnotflooded.
•Checktheblowerforlenscleaningisfunctional.

14. CHECKLIST FOR CEMS
CEMSCHECKLIST
•CalibrationcylinderisnotexpiredandItsconcentrationshouldbe80%ofspanrangeofanalyzer.
•Recalibration-every12monthsandifthereisamajorrepairwhichmayaffectdataquality
•Recalibration-alsoifdriftvariesbeyondlimitforconsecutive5days.
•Calibration-PMCEMS3pointsx3loads(Recalibration3loadsx2points).Sinceloadchangenotfeasible-askto
increasenumberoftraversepoints
•FortheStack:8D/2Dnotmet-recalibrationrequire9sampling(3load/3points).Forrecalibrationto8D/2Dstack-6
pointscalibrationissufficient
•CheckDustfactor-shouldnotbechangedwithoutpermissionfromSPCB/CPCB
•Remember–CEMScalibration/recalibrationhastobedonebyEPA/NABLapproved/accreditedlab-notvendor
•MonthlycomparisonofCEMSdatawithmanualdata-logintheregister
•Datacomparisonandvalidation-every6months-byaccreditedlab
•Validationofdata-6monthlyforCEMS-NDIR,NDUV,DOAS,FTIRandLaser-basedetc.
•CheckCEMSdatavariation,itshouldmatchcomplianceprotocol.Shouldbeclosetolab-monitoredvalue(inpercentage
difference-insteadofabsolutevaluedifference)
•ComparePMCEMSdatawithvisualemission,itshouldbereflectiveandjustifiable

15. CHECKLIST FOR MANUAL MONITORING
MANUALMONITORINGCHECKLIST
•In-houseemployeeattendsmanualmonitoringprocessbythethird-partylab
•Ensurethenumbersamplingpointscoveredduringdustmonitoring-meetsguidelines
•Checkifthird-partylabfollowsthisinmanualmonitoring
Note: For more than 5m stack dia-52 sampling points need to be
there (BIS)
Figure : Minimum traverse point requirement for manual monitoring (CPCB-emission
regulation part-3)
[i]
Figure : traverse points coverage in circular
and rectangular stacks/ducts (CPCB-emission
regulation part-3)
[ii]

16. CEQMS IMPLEMENTATION CHALLENGES
•Sensors are installed in stagnant water
•Sensor are dry (no water)
•CEQMS values have no deviation
•Operation and maintenance issue: lenses are covered, scaled
•ZLD plants have installed CEQMS at the outlet, along with Flow meter and camera
•Lack of proper maintenance schedule
•Missing data validation and comparison

17. CEQMS IMPLEMENTATION CHALLENGES

18. CHECKLIST FOR CEQMS
CEQMSCHECKLIST
•Checkwaterisnotstagnantismonitoringtank
•Checkcleaningofsensor
•Checkdatavariationmatchescomplianceprotocolrequirementandactualoperationalcondition
•Checkthatsensorsarenotdry
•Checkfollowingschedule-maintain/markinregister
InstrumentCalibrationFrequency:
✓pH–onceeveryweekorasspecifiedbymanufacturerwhicheverisearlier
✓COD–onceeveryweekorasspecifiedbymanufacturerwhicheverisearlier
✓BOD–onceeveryweekorasspecifiedbymanufacturerwhicheverisearlier
✓TSS–onceeveryweekorasspecifiedbymanufacturerwhicheverisearlier
✓TOC–onceeveryweekorasspecifiedbymanufacturerwhicheverisearlier
✓Temperature–onceeverymonthorasspecifiedbymanufacturerwhicheverisearlier
RelativeDifferenceEstimation-CEQMSVsLaboratorymeasurementsshouldbeunderfollowingrange(CEQMSguidelines):
✓CODAccuracy±10%
✓BODAccuracy±10%.
✓pHAccuracy±0.2pH
✓TSSAccuracy+/-10%

19. THANK YOU
ANY QUESTIONS?
SANJEEV K KANCHAN
[email protected]
[email protected]/ 91-8800855090