Domestic sewage treatment agent and preparation method thereof

A domestic sewage and treatment agent technology, applied in the field of water treatment, can solve problems such as incomplete treatment, natural environment pollution, difficulty in meeting discharge standards, etc., and achieve the effect of improving treatment effect, improving treatment efficiency, and super-fast absorption efficiency

Inactive Publication Date: 2019-03-19
福建元泉机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

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preparation example Construction

[0021] A kind of preparation method of domestic sewage treatment agent provided by the invention comprises the following steps:

[0022] Step 1: Mix graphite oxide aqueous solution with a mass solubility of 12~15mg / mL, carboxymethyl cellulose, shell powder and iron blocks of different specifications and weights, pour them into a mold, and then place them in a reaction kettle at 150~180°C Under the conditions of hydrothermal reaction for 4~5h, and then dialysis and freeze-drying to obtain block carbon sponge, wherein, according to the mass ratio, graphite oxide water: carboxymethyl cellulose: shell powder = 100: 1 ~ 5: 2 ~ 10;

[0023] Step 2: Activate and expand Bacillus subtilis, Pseudomonas aeruginosa, Candida lipolytica, nitrifying bacteria, bifidobacteria, indigenous bacteria and paracoccus denitrification respectively, and then use 0.2~0.8% by volume Inoculate into the culture medium of mixed strains and culture at 25-30°C for 54-72 hours to obtain the compound bacterial ...

Embodiment 1

[0039] A preparation method of domestic sewage treatment agent, comprising the following steps:

[0040] Step 1: Mix graphite oxide aqueous solution, carboxymethyl cellulose, and shell powder with a mass solubility of 12 mg / mL with iron nuggets of different specifications and weights (1g iron nuggets, 2g iron nuggets, 5g iron nuggets, and 10g iron nuggets) Iron block) mixed, poured into the mold, and then hydrothermally reacted in the reactor at 150°C for 4 hours, and then freeze-dried to obtain a block carbon sponge by dialysis treatment, wherein, according to the mass ratio, graphite oxide water: carboxymethyl Cellulose: shell powder = 100:1:2;

[0041] Step 2: Cultivate Bacillus subtilis, Pseudomonas aeruginosa, Candida lipolytica, nitrifying bacteria, bifidobacteria, indigenous bacteria and paracoccus denitrifica at 25°C for 24 hours respectively, and then activate them at 30°C Expanded culture under the conditions of 18h, and then inoculated into the mixed strain culture...

Embodiment 2

[0049] Step 1: Mix graphite oxide aqueous solution, carboxymethyl cellulose, and shell powder with a mass solubility of 15 mg / mL with iron nuggets of different specifications and weights (1g iron nuggets, 2g iron nuggets, 5g iron nuggets, and 10g iron nuggets) Iron block) mixed, poured into the mold, and then hydrothermally reacted in the reactor at 180 ° C for 5 hours, and then freeze-dried to obtain block carbon sponge by dialysis treatment, wherein, according to the mass ratio, graphite oxide water: carboxymethyl Cellulose: shell powder = 100:5:10;

[0050] Step 2: Bacillus subtilis, Pseudomonas aeruginosa, Candida lipolytica, nitrifying bacteria, bifidobacteria, indigenous bacteria and denitrifying paracocci were respectively cultured at 35°C for 48 hours for activation, and then activated at 40°C Expanded culture for 48 hours, then inoculated into the mixed strain culture medium at 0.8% by volume and cultured at 30°C for 72 hours to obtain a composite bacterial solution. ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C12N1/16C02F3/34C12R1/125C12R1/385C12R1/01C12R1/73
CPCC02F3/34C02F3/347C12N1/16C12N1/20
Inventor 吴红梅
Owner 福建元泉机械有限公司
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