Color is often caused by dissolved organic matter, e.g. humic and fulvic acids (organic decomposition products from vegetation). It can also be a result of impurities of minerals such as iron and manganese.
The color level can often be a good indicator of the organic content of water. If color is caused by organic matter, there is often a relation between color intensity and the level of organic content. Reduced color, and hence reduction of the organic matter in the water, is therefore an important parameter to control to prevent damage to the industrial process.
Chemical coagulation is an effective method to reduce the color level of the raw water. Our in-depth knowledge from different types of water sources around the world will help you to solve your color problems.