Treatment method of pigment wastewater

Pigment wastewater treatment, because precipitation separation is the main method of wastewater treatment, pigment manufacturers, so the main equipment for wastewater treatment is sedimentation tank. The sedimentation tank can be divided into advection, vertical and radial flow according to the direction of water flow. The plane of the advection sedimentation tank is rectangular. After the wastewater flows through the tank, the sediment continuously settles and flows out from the tail of the tank. The sludge accumulated at the bottom of the tank is discharged by the scraper. The vertical flow sedimentation tank has a circular plane. The wastewater enters from the bottom and is discharged from the periphery of the top. The bottom of the tank is a cone, which can discharge sedimented sludge. The radial flow sedimentation tank has a circular plane. The wastewater enters from the central pipe and flows evenly to the surrounding. It is equipped with a slow-speed scraper agitator that takes about 17 minutes a week, and the clear liquid can overflow around the tank. The pool is made of reinforced concrete, with a depth of about 5 meters and a volume of 600-1200 square meters or even larger. The sediment is pumped from the bottom to the filter equipment for filtration.

The monitoring of water quality is the key to governance. In the process of governance, some inspection instruments can be installed, which can reflect the governance situation at any time, and can also record automatically to save labor. Water quality should be sampled at sampling points for analysis to correctly reflect the governance.