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Denitrifying deep bed filter equipment

Process Introduction

Denitrifying deep bed filter is currently the mainstream process for upgrading domestic sewage treatment plants, which integrates the removal of SS, TP, and TN. The effluent can meet the Class A standard of GB18918-2002.

This filter is a gravity flow sand filter, where raw water flows into the inlet channel above the filter, passes through a new type of quartz sand homogeneous filter material, support layer, new filter bricks, and finally flows out from the distribution channel or collection channel at the bottom. After adding a carbon source to the influent, the deep bed filter can be converted into a denitrification filter, which can significantly remove nitrate nitrogen in wastewater, thereby achieving the goal of reducing TN.

The complete set of denitrification deep bed filter equipment can be manufactured into integrated equipment or implemented as a process package in water treatment engineering.

Technical characteristics

1. Stable effluent with good denitrification, phosphorus removal, and SS removal functions: TN<10mg/L, TP<0.3mg/L, SS<5mg/L;

2. Special filter brick gas water distribution technology;

3. Multi mode operation, flexible and versatile application;

4. High processing load and low footprint.

Applicable scope

1. New sewage treatment plant for advanced treatment;

2. Upgrade and renovate the sewage treatment plant.