What is the reason for the excess ammonia nitrogen in domestic sewage?

1. Domestic sewage mainly comes from the wastewater generated in the daily life of residents, including the sewage generated from laundry, kitchen, bathing, toileting, etc. The reason for the production of ammonia nitrogen in domestic sewage is that nitrogen-containing organic substances such as food residues in domestic sewage produce ammonia nitrogen under the decomposition of microorganisms.

2. Ammonia nitrogen in domestic sewage may also be caused by the following external factors:

(1) Insufficient gas supply or nitrifying bacteria;

(2) The scale of the facility in the process design is too small, and the processing load is too small;

(3) The hydraulic retention time is not well controlled;

(4) The proportion of nutrients does not meet the design standards, and it is necessary to increase the nutritional dosing system.

3. Characteristics of ammonia nitrogen degrading bacteria powder:

(1) It has the characteristics of fast reaction speed and high removal efficiency, which can meet the requirements of subsequent treatment;

(2) It is easy to add and use, which can save time and manpower;

(3) It has auxiliary functions such as reducing COD, and can adjust the pH value, saving the cost of acid adjustment;

(4) The real environmental protection agent will not bring about secondary pollution.