The Polyblend® DP500 System is a member of the family of reliable dry polymer feed systems for use in water and wastewater applications. The DP500 is an integrated equipment package capable of automatically preparing a homogeneous polymer solution.

The DP500 consists of the DD4 dry polymer disperser, a fiberglass mix tank, and a gravity fed fiberglass hold tank.

The DP500 is specifically designed to provide uniform mixing. Dry polymer and water are initially mixed in the DD4 polymer disperser exposing the solution to a high shear agitation via mechanical mixing. The high shear agitation ensures proper activation of the polymer and prevents unwanted agglomerations. After brief exposure, the solution exits the high shear mixer and flows into the mix tank.

The second stage mix is a longer, low shear mix. The rotating impeller in the secondary mix tank is a U.S. patented “hollow-wing” design and covers over half the width of the tank. The low shear mixing continuously and uniformly moves the solution vertically and horizontally resulting in no agglomerations or broken polymer chains.

When a low level is sensed in the hold tank, a valve is automatically opened and the prepared solution
is gravity fed into the holding tank. From the holding tank, the homogenous polymer solution can be transferred to the process with an optional feed pump skid. 

Click the link below to access a PDF of the data sheet.