Chemical and biological oxygen demand

An important step in the waste water treatment process involves reducing chemical and biological oxygen demand.

The problem: chemical and biological oxygen demand

Pollutants introduced to water can severely deplete the oxygen available to plant and animal life. Effluent that measures high in chemical oxygen demand (COD) or biological oxygen demand (BOD) will deplete water of more oxygen.

It’s vital that waste water treatment addresses chemical and biological oxygen demand – and not only for the sake of the environment. Maintaining optimum COD or BOD levels is also crucial to plant operations, since chemical and biological processes used to treat waste water rely on the right balance.

Failing to maintain the correct COD or BOD levels can slow down treatment operations and may result in increased operating charges.

Effluent samples that fail to meet COD and BOD consent levels could also incur additional charges from Scottish Water.

Our solution

You can rely on Business Stream to address chemical and biological oxygen demand levels for you. We’ll start by conducting a waste minimisation survey to see if improving processes can lower COD and/or BOD.

We will further reduce the COD and/or BOD levels of your waste water – or even equalise it – using appropriate chemical or biological treatments. We may also consider installing an activated carbon filter system to boost the removal of organic contamination.

If chemical and biological oxygen demand is an ongoing issue for your business, we can design, operate, build and pilot an on-site treatment plant for your business. Business Stream also offers plant hire, if it’s just a temporary fix that you need.