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An environmentally friendly method for treating industrial sludge

An industrial sludge and environmental protection technology, applied in sludge treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems that are difficult to reach the level of industrial sludge treatment, and achieve enhanced cleaning, Improve the purification effect, improve the effect of washing effect

Active Publication Date: 2022-06-03
远贺(佛山)新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Industrial sludge contains a lot of heavy metal components. Most of the existing technologies use domestic sludge to treat it. It is difficult for this technology to reach the level of industrial sludge treatment, so further improvement is needed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An environment-friendly method for treating industrial sludge of the present embodiment includes the following steps:

[0026] Step 1: Take 500 parts of industrial sludge and put it into a closed tank, then add 60 parts of reaction aids, stir at a speed of 200r / min for 35min, and then pressurize it at a pressure of 2MPa. After the reaction is completed, it is sent to calcination High temperature calcination is carried out in the furnace, the calcination temperature is 1000 ° C, and the calcination is carried out for 35 minutes;

[0027] Step 2: Preparation of adsorbent: add 30 parts of cyclodextrin to 60 parts of activated carbon dispersion, then stir at 200r / min for 30min, then add 1 part of rare earth lanthanum chloride, and then at 100r / min The rotating speed continued to stir for 55min to obtain the adsorbent;

[0028] In step 3, the adsorbent obtained in step 2 and the raw material in step 1 are blended and fed into a steam explosion tank, then hot-pressed lignin ...

Embodiment 2

[0039] An environment-friendly method for treating industrial sludge of the present embodiment includes the following steps:

[0040] Step 1: Take 1000 parts of industrial sludge and put it into a closed tank, then add 120 parts of reaction aids, stir at a speed of 500 r / min for 45 minutes, and then pressurize it at a pressure of 10 MPa, the reaction is over, and sent to calcination High temperature calcination is carried out in the furnace, the calcination temperature is 1500 ℃, and the calcination is 45min;

[0041] Step 2: Preparation of adsorbent: add 40 parts of cyclodextrin to 100 parts of activated carbon dispersion, then stir at 500r / min for 40min, then add 5 parts of rare earth lanthanum chloride, and then at 200r / min. The rotating speed continued to stir for 65min to obtain the adsorbent;

[0042] In step 3, the adsorbent obtained in step 2 and the raw material in step 1 are blended and sent into a steam explosion tank, and then hot-pressed lignin is added, and stea...

Embodiment 3

[0053] An environment-friendly method for treating industrial sludge of the present embodiment includes the following steps:

[0054] Step 1: Take 750 parts of industrial sludge and put it into a closed tank, then add 90 parts of reaction aids, stir at a speed of 350 r / min for 40 minutes, and then pressurize it at a pressure of 6 MPa. After the reaction is completed, it is sent to calcination High temperature calcination is carried out in the furnace, the calcination temperature is 1250 ℃, and the calcination is 40min;

[0055] Step 2: Preparation of adsorbent: add 35 parts of cyclodextrin to 80 parts of activated carbon dispersion, then stir at 350r / min for 35min, then add 3 parts of rare earth lanthanum chloride, and then at 150r / min The rotating speed continued to stir for 60min to obtain the adsorbent;

[0056] In step 3, the adsorbent obtained in step 2 and the raw material in step 1 are blended and fed into a steam explosion tank, then hot-pressed lignin is added, and s...

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PUM

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Abstract

The invention provides an environment-friendly method for treating industrial sludge, comprising the following steps: Step 1: Take 500-1000 parts of industrial sludge and send it into a closed tank, then add 60-120 parts of reaction auxiliary agent, and use 200-1000 parts of industrial sludge to Stir at a speed of 500r / min for 35-45min, and then pressurize at a pressure of 2-10MPa. After the reaction is completed, send it to a calciner for high-temperature calcination at a calcination temperature of 1000-1500°C for 35-45min. The industrial sludge of the present invention is firstly mixed and reacted with a reaction aid, and then calcined at a high temperature. The reaction aid is obtained by treating bentonite with pyrolyzed epoxy soybean oil. The pyrolyzed epoxy soybean oil has a high temperature and can promote the expansion of bentonite sheets , so as to promote the industrial sludge into the bentonite sheet, and then further adsorption reaction treatment with the adsorbent to form a new system structure, which provides the basis for the subsequent treatment of the adsorbent.

Description

technical field [0001] The invention relates to the technical field of industrial sludge treatment, in particular to an environment-friendly method for treating industrial sludge. Background technique [0002] Sludge is the product of sewage treatment, which is an extremely complex heterogeneous body composed of organic debris, bacterial cells, and inorganic particles. The main characteristics of sludge are high moisture content (up to more than 99%), high organic content, easy to spoil and stink, and fine particles, small specific gravity, and gelatinous liquid. The industrial sludge refers to the sludge produced by the industrial wastewater treatment station, which is the solid sedimentary material produced by the water and sewage treatment process. Generally, there are many inorganic sludges, which contain chemical components in the production wastewater, and belong to the category of hazardous waste. The treatment of industrial sludge is: dehydration, selection of dispo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/18B01J20/24B01J20/30C02F101/20C02F101/30
CPCC02F11/00C02F11/18B01J20/20B01J20/22B01J20/24C02F2101/20C02F2101/30Y02W10/40
Inventor 贺敬
Owner 远贺(佛山)新材料科技有限公司