A kind of rapid start-up method of anaerobic ammonium oxidation reactor

Abstract

The invention provides a method for quickly starting an anaerobic ammonia oxidation reactor. A small amount of anaerobic ammonia oxidation sludge subjected to enrichment culture successfully is regularly added into a reactor for starting an anaerobic ammonia oxidation process by using non-anaerobic ammonia oxidation sludge (such as nitrification sludge, denitrification sludge, methane-producing sludge and the like) to provide certain growth factors for the reactor, so that the starting condition of the anaerobic ammonia oxidation process is improved, and a part of bacterium sources can be increased to accelerate the enrichment of anaerobic ammonia oxidation bacteria in the sludge in the reactor; and substrate concentration and hydraulic retention time are timely adjusted on the basis to avoid substrate lack and accelerate the growth of the anaerobic ammonia oxidation bacteria and the process of granulating the sludge, so that the starting time of the anaerobic ammonia oxidation reactor is greatly shortened, and the popularization and application of the anaerobic ammonia oxidation process are facilitated.

Description

(1) Technical field

[0001] The invention relates to a quick starting method of an anaerobic ammonium oxidation reactor. (2) Background technology

[0002] The accumulation of nutrient elements such as nitrogen in the water body will lead to eutrophication of the water body and cause serious damage to the water body ecosystem. Anammox bacteria can use nitrite as an electron acceptor to oxidize ammonia to generate nitrogen and remove nitrogen in water. Compared with the traditional nitrification and denitrification biological denitrification process, the new anammox denitrification process based on anammox bacteria has the advantages of low consumption and high efficiency, and has a bright application prospect.

[0003] As an autotrophic bacterium, the anammox bacteria have low cell yield, long doubling time, slow growth, and are sensitive to environmental conditions, making it very difficult and time-consuming to start the anammox process. The start-up of the world's first ...