Difficulties in phosphorus removal in wastewater treatment
Thread Content
The phosphorus content in the sodium hypochlorite solution produced by our company is above the specified limit; even the tests on a small scale do not meet the requirements. The reagents used in these tests include ① sodium hypochlorite, ② potassium permanganate, and ③ calcium hypochlorite – none of these oxidizing agents are able to meet the required standards； The total phosphorus in the inlet water is around 700, and the COD is around 1000; the total phosphorus in the outlet water is 200, while the COD hardly decreases. What are the main reasons for this?
Oxidants cannot remove total phosphorus; try polyferric sulfate and similar substances
The agents used for removal are generally iron, aluminum, and calcium salts for precipitation; however, if the phosphate is not orthophosphate, it cannot be removed by precipitation as it does not react.
I have a COD remover that can eliminate COD as well as phosphorus
Everyone is in the water business; why bring up such trivial matters?