Draft Detailed Project Report

Technology Centre Systems Program – Draft DPR for New TC at Rohtak
Environment, health and safety
Effective management of environmental, health, and safety (EHS) issues entails the inclusion of EHS
considerations at various levels during project implementation. It is proposed that World Bank EHS
guidelines will be followed to adhere to the desirable performance levels and measures while
developing the TC.
Environment
Air emissions
The expected manufacturing processes in the proposed TC with air emissions would be sintering,
metal cutting, grinding and / or forming (including forging, wire drawing, pressing, stamping, among
others), quenching, annealing and other general treatments, abrasive treatments (e.g. shot, sand
blasting), solvent degreasing and emulsion, alkaline, and acid cleaning, welding, anodizing, chemical
conversion coating, electroplating, painting and other metal finishing techniques (Including polishing,
hot dip coating). To counter the problems, the following techniques will be used:
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Volatile Organic Compounds (VOC) emissions management strategies will be used which
include:
Installation of refrigerator coils (or additional coils) above the degreaser vapour zone
Application of an air flow over the top of the degreaser that should not typically exceed 40
m / minute
Rotation of parts before removal from the vapour degreaser, including:
• Installation of thermostatic heating controls on solvent reservoirs and tanks
• Installation of in-line filters to prevent particulate build- up
• Use of solvent recovery to reduce emissions of VOC from curing ovens
• Use of activated carbons to recover solvent vapours
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In order to reduce emissions during welding and coating, metal surfaces would be carefully
cleaned
Coatings would be removed from the base metal before welding preferably using mechanical
cleaning (for example blasting with CO2-pellets) instead of solvents.
Dust: Dust emissions management strategies will be used which include:
Installation of in-line aspirators with filters or scrubbers. Electrostatic precipitators (ESP) will
also be employed
Where possible, maintaining wetness on the metal surface in order to prevent or minimize
dust production
Acid / Metals Content in Mists and Fumes: Management strategies for acid / metal content in
mist and fume emissions will be used which include:
Use of fume suppressants as additives to electroplating baths to reduce air emissions of
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