Nine Kinds of Water Treatment Basic Processes

Nine kinds of water treatment basic processes. Yes, it is. And do you know what are they? Now, let’s continue to reading.   1. Precipitation Precipitation is usually a multi-step process. It is used to reduce turbidity and suspended matter in water. This multi-step process involves the addition of a chemical coagulant or pH adjuster to react to form flocs. The flocs precipitate in the sedimentation tank due to gravity. Or filter out when water passes through the height difference filter. The precipitation process effectively removes particles larger than 25 μm. 2. Lime – Soda Softening A method of reducing the calcium and magnesium content by adding lime (CaO) and soda ash (Na2CO3) to water is called a lime softening method. The goal is to precipitate calcium hydroxide and magnesium hydroxide (hardness) in the water. This process costs less. But the effect is not ideal. The water hardness usually produced is 50-120 ppm (3-7 gpg). The inadequacy of this process is that the pH of the treated water is high, generally ranging from 8.5 to 10.0. 3. Mechanical Filter (Multi-media Filter) A mechanical filter is a pressure vessel filled with a specified thickness of filter material. When filling a single […]

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