Domestic sewage treatment agent and preparation method thereof

Abstract

The invention provides a domestic sewage treatment agent and a preparation method thereof. The preparation method includes the steps: mixing graphite oxide water solution, carboxymethyl cellulose, shell powder and iron blocks with different specifications and weights, performing hydrothermal reaction for 4-5 hours, and then performing dialysis and freeze-drying to obtain a blocky carbon sponge; performing activation and amplification culture on bacillus subtilis, pseudomonas aeruginosa, candida lipolytica, nitrifying bacteria, bifidobacteria, indigenous bacteria and paracoccus denitrificans, inoculating the bacteria to a mixed strain medium in the volume percent of 0.2-0.8% and performing culture to obtain composite bacteria solution; mixing sodium chloride, lime, sodium carbonate, chitosan, earthworm protease and water to obtain mixed solution; soaking the blocky carbon sponge into the mixed solution, taking out and airing the blocky carbon sponge, spraying the composite bacteria solution to the surface of the blocky carbon sponge and airing the blocky carbon sponge to obtain a target product. The prepared sewage treatment agent can effectively reduce medicine consumption and improve domestic sewage treatment effects and is small in sludge quantity, green and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a domestic sewage treatment agent and a preparation method thereof. Background technique [0002] With the development of society and the improvement of people's living standards, the composition of domestic sewage is more complex, and the treatment of domestic sewage is becoming more and more difficult. If domestic sewage is discharged directly, it will cause pollution to the natural environment, and the consequences will be disastrous. The existing domestic sewage contains high nitrogen, phosphorus, and oil content. Physical methods use separation to recover insoluble suspended pollutants in sewage, which can only deal with some simple wastewater treatment, but the treatment is very incomplete, and it is difficult to achieve discharge Standards, and the use of existing water treatment agents, generally a variety of chemical components, a large amount of drug consumption...

AI Technical Summary

Problems solved by technology

[0002] With the development of society and the improvement of people's living standards, the composition of domestic sewage is more complex, and the treatment of domestic sewage is becoming more and more difficult. If domestic sewage is discharged directly, it will cause pollution to the natural environment, and the consequences will be unimaginable.

The existing domestic sewage contains high nitrogen, phosphorus, and oil content. Physical methods use separation to recover insoluble suspended pollutants in sewage, which can only deal with some simple wastewater treatment, but the treatment is very incomplete, and it is difficult to achieve discharge Standards, while the existing water treatment agents are generally composed of various chemical components, consume a lot of chemicals, and have a large amount of sludge, and most of them contain some toxic ingredients, which are likely to cause secondary pollution