Sewage treating agent

A sewage treatment agent and microbial treatment technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, textile industry wastewater treatment, etc. The effect of obvious treatment effect, simple composition and simple preparation process

Inactive Publication Date: 2016-07-20
张天国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wastewater is characterized by high concentration of organic matter, complex composition, deep and changeable color, large pH changes, and large changes in water quality and water quality; with the development of chemical fiber fabrics, the rise of imitation silk and the improvement of printing and dyeing finishing requirements, PVA slurry , rayon alkali hydrolyzate, new dyes, auxiliaries and other refractory organic substances enter textile printing and dyeing wastewater in large quantities, which poses a serious challenge to traditional wastewater treatment processes, and the COD concentration also rises from hundreds of milligrams per liter to 3000-5000mg / l
[0004] The currently used textile mill wastewater treatment methods mainly include coagulation method, oxidation method, and electrolysis method; the disadvantages of coagulation method are high operating cost, large amount of sludge and difficult dehydration, and poor treatment effect on hydrophilic dyes
The oxidation method has a poor decolorization effect on water-insoluble dyes such as vulcanization, reduction, and paint, and consumes a lot of power, so it is difficult to popularize and apply it on a large scale; the electrolysis method has a better treatment effect on the printing and dyeing wastewater of acid dyes, and the decolorization rate is 50% to 70%, but the treatment effect on wastewater with dark color and high CODcr is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] (1) Inoculate the white rot fungus seed liquid into the seed medium and cultivate for 3-5 days, the inoculum size is 8-10%, and the culture conditions are: at normal temperature, 80r / min shaker culture for 2-3 days; then Inoculate into the fermentation medium and cultivate, the inoculum amount is 8-10%; the culture conditions are: normal temperature condition, static culture for 4-6 days; inoculate the seed liquid of dry rot fungus into the seed medium and cultivate for 3-5 days, inoculate The amount is 8-10%, and the culture conditions are: at normal temperature, 80r / min shaker culture for 2-3 days; then inoculated into the fermentation medium for culture, the inoculum amount is 8-10%; the culture conditions are: normal temperature , static culture for 4-6 days;

[0019] The seed medium is: glucose 2%, sucrose 2%, fructose 1%, peptone 0.3%, yeast extract powder 0.3%, Na2HPO4 12H2O 0.1%, KH2PO 0.2%, MgSO4 7H2O 0.05%, the balance Water, pH 6.0, sterilized in a water bat...

example 2

[0024] (1) Inoculate the white rot fungus seed liquid into the seed medium and cultivate for 3 days, the inoculum size is 10%, and the culture conditions are: at normal temperature, 80r / min shaker culture for 3 days; then use the inoculum size as 8% again Inoculate into the fermentation medium and cultivate; the culture conditions are: normal temperature conditions, static culture for 6 days; inoculate the dry rot fungus seed solution into the seed culture medium for 5 days, the inoculation amount is 10%, and the culture conditions are: at normal temperature conditions , cultivated on a shaker at 80r / min for 2-3 days; then inoculated into the fermentation medium for culture, the inoculum size was 10%; the culture conditions were: normal temperature, static culture for 6 days;

[0025] (2) Bioflocculant: inoculate the Aspergillus sojae seed solution into the PDA liquid medium and cultivate it for 5 days, the inoculum size is 10%, and the culture conditions are: 28°C, 80r / min sha...

example 3

[0028] (1) the cultivation method of white rot fungus, dry rot fungus, aspergillus sojae, rhodococcus erythrophylla is identical with example 1;

[0029] (2) White rot fungi and dry rot fungi are mixed in a weight ratio of 1:3, and Aspergillus sojae and Rhodococcus are mixed in a weight ratio of 3:1, and then the two are mixed in a weight ratio of 1:1 to obtain microorganisms The treatment agent is finally configured in parts by weight: 35 parts of the microbial treatment agent and 10 parts of limestone to obtain the sewage treatment agent.

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PUM

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Abstract

The invention relates to the technical field of sewage treating, in particular to a sewage treating agent. The sewage treating agent is prepared from 20-35 parts of a microorganism treating agent and 10-20 parts of limestone. White rot fungi and serpula lacrymans schroet are mixed according to the weight ratio of (1-3):(1-3), aspergillus sojae and rhodococcus erythropolis are mixed according to the weight ratio of (1-3):(1-3), the two mixtures are mixed according to the weight ratio of 1:1 to obtain the microorganism treating agent, and the microorganism treating agent is mixed with the limestone to prepare the sewage treating agent. The sewage treating agent is used for treating textile mill sewage and is obvious in treating effect, good in stability and little in influence generated by environment.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment agent. Background technique [0002] Printing and dyeing wastewater is an important part of industrial wastewater. With the development of the printing and dyeing industry, the use of PVA slurry and new refractory dyes, the pollution of printing and dyeing wastewater is becoming more and more serious, and the difficulty of treatment is also increasing. The organic load of Shandong Weifang Lantian Textile Co., Ltd. is not high, the biodegradability is poor, and the chroma is high. Taking into account factors such as economy, technology and environment, neutralization + anaerobic + aerobic treatment is mainly used at present. The treated effluent has good quality and can meet the secondary standard in Table 3 of the "Water Pollution Discharge Standard for Textile Dyeing and Finishing Industry" (GB4287-92). [0003] Textile wastewater is mainly wastewate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F103/30
Inventor 张天国
Owner 张天国
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