Odour Control for Industry in India: A Practical Guide to PCB Compliance

Why odor control matters

Odor is often the first sign a neighbour notices about a waste, treatment or process site. Even when gases are below harmful levels, persistent odor leads to complaints, inspections and pressure on the site’s consent to operate. Some odorous gases, such as hydrogen sulphide, are also corrosive and wear out equipment.

Know your odor sources

Start by listing every point where odor is released and how strong it is:

• Open waste heaps, tipping floors and leachate
• Inlet works, sludge handling and septic tanks
• Process vents, storage areas and loading bays
• Drains, grease traps and collection points

Note the prevailing wind direction and where the nearest homes or offices are. This decides where control is needed first.

Compliance in India

Odor-related conditions are usually part of the consent issued by the State Pollution Control Board, and the Central Pollution Control Board has published guidance on odour pollution and its control. Read your consent conditions closely — they tell you what the regulator expects to see on site.

Choose the right control method

• Misting and fogging for large open areas, perimeters and sheds.
• Odor control chemicals dosed into the fog, the wastewater or sprayed directly.
• Containment — covering tanks and enclosing sources — where it is practical.

Most sites combine two or more of these.

Measure and prove the result

Odour monitors at the site boundary show whether controls are working, help trace the source of a complaint and give you data to share with the regulator.

Next step

Share your site type, area, odor sources and consent conditions with us. We will recommend a system and send a quote.