A rapid enrichment reaction equipment for anammox bacteria

Abstract

The invention belongs to the field of water pollution control, and particularly relates to quick enriching reaction equipment for anammox. The reaction equipment comprises a reactor, a peristaltic pump and a water inlet box, wherein the reactor is a continuous stirring tank type reactor; a water inlet and a mud pipe are arranged at the bottom part of the reactor; the water inlet box is connected with the water inlet by the peristaltic pump; the top part of the reactor is provided with a thermometer probe, a gas collecting tube and a stirrer shaft seal, so as to ensure that the anaerobic environment is at a strictly-sealed state; and a gas-liquid-solid three-phase separator is arranged in the reactor. By adopting the quick enriching reaction equipment for the anammox, the anammox can be quickly enriched for the anaerobic ammonia oxidizing water treatment technology, the concentration of a substrate in the reactor can be decreased, and therefore, the operating yield and the selectivity of a target product of the reactor can be effectively improved.

Description

technical field [0001] The invention belongs to the field of water pollution control, in particular to an anammox bacteria ( Anammox ) Rapid enrichment reaction equipment. Background technique [0002] In recent years, with the development of the economy, the content of nitrogen and phosphorus elements (especially ammonia nitrogen) in industrial, agricultural and urban domestic sewage is getting higher and higher. A large amount of nitrogen and phosphorus wastewater is directly discharged into the water body without proper treatment, seriously polluting the water body environment, leading to severe eutrophication of a large number of rivers and lakes, frequent occurrence of coastal red tides, and serious harm to human health. The contradiction of shortage seriously restricts the implementation of sustainable development strategy. Among them, ammonia nitrogen, the most important pollutant, has a wide range of sources and a large content. In addition to domestic sewage and l...

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Problems solved by technology

For example: the complete nitrification of ammonia nitrogen requires a large amount of oxygen, which increases power consumption; for wastewater with relatively low C / N, an additional organic carbon source is required; the entire treatment process is long, occupies a large area and requires high infrastructure investment, etc.

[0004] With the continuous and in-depth research on sewage treatment, several new biological denitrification processes have been developed and applied in recent years. Among them, the anaerobic ammonium oxidation process has low energy consumption, no need for aeration, carbon source saving, and less sludge production. , the advantage of small footprint is attracting more and more attention, but there are still some problems to be solved urgently in this process, such as: the anammox bacteria have a long generation cycle and are difficult to enrich, which leads to a long start-up time of the reactor; Ammonia oxidizing bacteria have strict requirements on the quality of wastewater and are sensitive to changes in environmental conditions; the operation of reaction equipment is more complicated, the amount of biological holdings is low, and the operation is unstable. Among them, it is difficult for anammox bacteria to enrich and lead to anammox The long start-up time of the reactor has become a bottleneck restricting the popularization and application of the anammox process

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