How to remove ammonia nitrogen from wastewater and how to remove ammonia nitrogen from wastewater?

1 traditional biological nitrogen removal method

I believe many environmentalists are familiar with biological A/O denitrification process, so I won't go into details here.

The process separates the three stages of organic matter degradation, nitrification and denitrification, and has its own independent sedimentation tank and sludge reflux system after each stage.

It should be noted that in the actual operation process, it is necessary to control the appropriate reflux ratio of nitration solution to achieve the visible denitrification effect in the system.

2MAP precipitation method

Theoretically speaking, magnesium ammonium phosphate (MAP) can be produced by adding phosphate and magnesium salt to wastewater containing high concentration of ammonia nitrogen in a certain proportion, thus removing ammonia nitrogen from wastewater.

At present, the cost of adding magnesium salt is still the main factor limiting the implementation of this method.

3 chemical reagent method

A method for directly oxidizing ammonia nitrogen into nitrogen through strong oxidation by directly adding ammonia nitrogen remover into sewage.

Based on the consideration of cost control, operation requirements, removal effect and other factors, this method is also a more popular method.