COD is the measure for the total food in the sewage of your factory going into the waste water treatment. The bacteria will use a part of this food (BOD) to stay alive and to grow. The other part will leave the treatment plant in the water or sludge.

Fluctuating loads will upset your treatment plant and will lead to bad treatment and foaming. Measuring the COD in the influent will help you controlling your treatment plant by means of feed forward control of the air compressors and increasing the return activated sludge. COD can also be toxic for bacteria above a certain concentration. Inhibition of bacteria will lead to poor treatment as well or can lead to upset the treatment completely.

Fluctuating loads will also help you improving your factory by finding leaking spots and causes. By reducing the amounts of leakages, you can sell more products and this will lead to lower treatment costs (less consumption of oxygen, less sludge).

Rhosonics has invented a new way to measure the amount of costly liquid spills from the factory going into the sewage, feeding or inhibiting the bacteria from the waste water treatment. COD is normally measured in the laboratory by means of chemical reactions with oxygen. In the field, the same technology is needed to get the same results. Rhosonics invented a new technology to quantify and qualify these liquid spills from the factory: CODeq; equivalant results but with a better technology. 

Rhosonics uses a combination of two technologies in one sensor to determine CODeq: the speed of sound and the attenuation in combination withstate-of-the-art software. The model 9670 should be selected for this application.

Measuring range: 25 -1.000.000 mg/l O₂