Composite aggregate purification carrier

Abstract

The invention provides a composite aggregate purification carrier, which comprises an aggregate carrier and a composite layer, the composite layer covers the surface of the aggregate carrier, the composite layer is formed by mixing an adhesive and composite bacteria, the composite bacteria comprise bacillus subtilis, bacillus licheniformis and alcaligenes faecalis, and the composite bacteria comprise bacillus subtilis, bacillus licheniformis and alcaligenes faecalis. The adhesive comprises polyvinyl alcohol, sodium alginate and gelatin, the concentration ratio of the polyvinyl alcohol to the sodium alginate to the gelatin is (30-40): 6: 1, the thickness of the composite layer is 1-2 mm, and the weight ratio of the adhesive to the composite bacteria is 8: 1. Sodium alginate and gelatin in the adhesive not only can realize an adhesion effect, but also can provide nutrients for the compound bacteria, so that the compound bacteria can have a longer life cycle, the black and odorous water body is more favorably purified, the aggregate carrier, the adhesive and the compound bacteria do not pollute the environment, and the service life of the black and odorous water body is prolonged. Therefore, the composite aggregate purification carrier can purify polluted water in an environment-friendly manner.

Description

technical field [0001] The invention relates to the field of biological water purification, more specifically, to a composite aggregate purification carrier. Background technique [0002] At present, with the rapid development of the country's economy, sewage collection and treatment facilities are seriously lagging behind, causing a large amount of sewage to flow directly into the river. The Ministry of Housing and Urban-Rural Development conducted spot checks on black and smelly water bodies in prefecture-level and above cities across the country. The results of the spot checks showed that there were 1,811 black and smelly water bodies in 295 cities, of which 1,547 were rivers, accounting for 85.4% of the total number of black and smelly water bodies in the spot checks; lakes There are 264 ponds, accounting for 14.6% of the total number of black and odorous water bodies inspected. Today, with the increasingly serious pollution from external sources, it is urgent to take m...

AI Technical Summary

Problems solved by technology

However, this magnetic separation temporary pollution control measure can only remove part of the insoluble pollutants, and the removal rate of ammonia nitrogen and total phosphorus is extremely low. The water quality after magnetic separation treatment is still of inferior water quality. It is easy to produce a large amount of chemical sludge, which will cause secondary pollution to the environment

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