Chemical dosing system, is also named as dewatering unit, it is a mixing & storage system used to enhancing chemicals, or acid, alkali to other system or materials to reach a certain purpose. It is widely used in drilling waste management system, waste oil recovery system, waste water treatment system, soil clarification system, and other liquid treatment applications. Below are some of the applications of the dosing chemicals:

1) The chemical dosing system can be used to mix and prepare flocculent or polymers to remove the fine solids from waste oil or waste water. Mostly, the chemical dosing system is used together with decanter centrifuge separator. The separation point of centrifuge is 2 ~ 5 microns. Particles smaller than 2～ 5 microns is out of the range of centrifuge separation. After using flocculent, the ultra-fine particles and be flocculated to bigger size for centrifuge remove.

2) The chemical dosing system can be used to mixing and it can automatically add acid or alkali to liquid to reach the suitable PH degree. Mostly, the waste liquid is not neutral. It is either acidic or alkaline. During treatment, people should to make it to be neutral to reduce its harm to the environment. Based on the liquid situation, acid or alkali will be add to the system to neutralize the PH degree.

3) The chemical dosing system can be used to stock demulsifier for oily sludge separation system. After dosing the demulsifier, the viscosity of the oily sludge can be reduced, then it can be suitable for mechanical separation, like high G shaker, vertical cuttings dryer or decanter centrifuge. Decanter centrifuge is one of the most common equipment used together with chemical dosing system. According to different treating capacity requirement and the separating result, there are different sizes and different speed decanter centrifuge for option from world famous brand GN Solids Control. The bowl size varies from 9 inch, 14 inch, 18 inch, 22 inch and 30 inch.