Carbonate type ammoxidation process and strengthening technology thereof

Abstract

The invention discloses a carbonate type ammoxidation process and a strengthening technology thereof. According to the method, a proper amount of carbonic acid compounds are supplemented into the wastewater to serve as an electron acceptor for ammonia nitrogen autotrophic oxidation and a carbon source for nitrifying bacteria anabolism; nitration of ammonia nitrogen under an anaerobic condition is realized by regulating and controlling environmental factors such as proper temperature and pH value and working conditions such as hydraulic retention time and sludge retention time, and nitrite nitrogen and nitrate nitrogen are stably generated from the ammonia nitrogen; and by supplementing a proper amount of redox mediator in the system, the ammonia nitrogen nitration / oxidation rate can be increased, the nitration degree is more thorough, and the product is mainly nitrate nitrogen. Aeration oxygen supply is not needed in the whole process, and the construction and operation cost of a rear-mounted biological denitrification process based on the nitrification-denitrification process can be greatly reduced.

Description

Technical field

[0001] The present invention belongs to the field of environmental protection sewage biological denitride, involving a carbonate type ammonia oxidation process and its strengthening techniques, and is specifically related to a ammonia nitrogen anaeroxidation treatment method using a carbonate as an electron acceptor and electronics. Medomanner strengthening process. Background technique

[0002] During the process of wastewater biodeproform, the nitrification process of ammonia nitrogen is critical, and it is to ensure traditional A / O process, A 2 Biological Nitrogen and Phosphorus Process, Short Round Nitrification - Nitrination Process, Nitrification - Basis of Nitrification - Internal Denitrification Detproduction Process. However, the nitrification process needs to maintain a high DO level (NH 4 + -N's oxygen equivalent is 4.57 g O 2 / g NH 4 + -N), the aeration energy is very high, and the sewage plant is difficult to operate.

[0003] Does the key regula...