Denitrifying Phosphorus Removal Bacteria Powder

Mechanism of Phosphorus Removal by Denitrification

Phosphorus removal by denitrification means that it is easy to enrich a kind of facultative Anaerobic Microorganisms with both denitrification and phosphorus removal under the condition of alternating operation of anaerobic/anoxic environment. The phosphorus accumulating bacteria can use NO3- as an electron acceptor. body, through their metabolism to complete the process of excess phosphorus absorption and denitrification at the same time.

Minimize the demand for carbon sources and realize the double saving of energy and resources. Denitrification and phosphorus removal can save about 50% of COD, about 30% of oxygen, and about 50% of excess sludge.

A large number of laboratory and productive scale biological phosphorus and nitrogen removal studies have also shown that when microorganisms go through three stages of anaerobic, anoxic and aerobic successively, about 50% of phosphorus-accumulating bacteria can utilize both oxygen and NO3. -Accumulate phosphorus as an electron acceptor, namely denitrifying phosphorus accumulating bacteria (DPB's phosphorus removal effect is equivalent to about 50% of the total phosphorus accumulating bacteria). On the one hand, these findings indicate that nitrate can also be used as an electron acceptor for the oxidation of PHB by some microorganisms, and on the other hand, it is also confirmed that DPB microorganisms do exist in the biological phosphorus removal system of sewage, and DPB can be enriched through domestication. of activated sludge.