Heavy metal normal temperature solidifier and method for solidifying heavy metal in heavy metal pollutant by using heavy metal normal temperature solidifier

A technology of room temperature solidification and heavy metals, applied in the field of heavy metal pollutant treatment, can solve the problems of high room temperature solidification cost, secondary pollution solidifying agent dosage, etc., and achieve good solidification effect, good removal effect, and increase the effect of adsorption effect.

Inactive Publication Date: 2019-11-15
孙毅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] One of the purposes of the present invention is to solve the above technical problems, to provide a heavy metal normal temperature curing agent, which has a good curing effect under normal temperature conditions, and can effectively solve the problem of high normal temperature curing cost and easy occurrence of secondary problems in the prior art. Problems of pollution and large amount of curing agent

Method used

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  • Heavy metal normal temperature solidifier and method for solidifying heavy metal in heavy metal pollutant by using heavy metal normal temperature solidifier
  • Heavy metal normal temperature solidifier and method for solidifying heavy metal in heavy metal pollutant by using heavy metal normal temperature solidifier
  • Heavy metal normal temperature solidifier and method for solidifying heavy metal in heavy metal pollutant by using heavy metal normal temperature solidifier

Examples

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Effect test

example 1

[0052] The heavy metal normal temperature curing agent raw material weight composition that this example adopts is:

[0053] 5 parts of nano molecular sieve, 10 parts of calcium oxide, 7 parts of aluminum sulfate, 3 parts of iron oxide.

[0054] Wherein the nano molecular sieve is a Y type molecular sieve.

[0055] Then, the heavy metal normal temperature curing agent is used to cure the heavy metals in the heavy metal pollutants provided in this embodiment, which specifically includes the following steps:

[0056] Step 1. Mix the heavy metal pollutants and the heavy metal normal temperature curing agent evenly at normal temperature to obtain a mixture, wherein the mass ratio of the heavy metal pollutants to the heavy metal normal temperature curing agent is 100:15, and the water content of the mixture is 3%;

[0057] Step 2. The mixture prepared in step 1 was left to stand for 60 hours at normal temperature;

[0058] Step 3. The mixture treated in step 2 is mixed with water...

example 2

[0060] The heavy metal normal temperature curing agent raw material weight composition that this example adopts is:

[0061] 1 part of nano molecular sieve, 5 parts of calcium oxide, 30 parts of aluminum sulfate, 1 part of iron oxide.

[0062] Wherein the nano molecular sieve is a Y type molecular sieve.

[0063] Then, the heavy metal normal temperature curing agent is used to cure the heavy metals in the heavy metal pollutants provided in this embodiment, which specifically includes the following steps:

[0064] Step 1. Mix the heavy metal pollutants and the heavy metal normal temperature curing agent evenly at normal temperature to obtain a mixture, wherein the mass ratio of the heavy metal pollutants to the heavy metal normal temperature curing agent is 100:20, and the water content of the mixture is 5%;

[0065] Step 2. The mixture prepared in step 1 was left to stand for 72 hours at normal temperature;

[0066] Step 3. Add water to the mixture treated in step 2 and mix ...

example 3

[0068] The heavy metal normal temperature curing agent raw material weight composition that this example adopts is:

[0069] 3 parts of nano molecular sieve, 3 parts of calcium oxide, 10 parts of aluminum sulfate, 5 parts of iron oxide.

[0070] Wherein the nano molecular sieve is a Y type molecular sieve.

[0071] Then, the heavy metal normal temperature curing agent is used to cure the heavy metals in the heavy metal pollutants provided in this embodiment, which specifically includes the following steps:

[0072] Step 1. Mix the heavy metal pollutants and the heavy metal normal temperature curing agent evenly at normal temperature to obtain a mixture, wherein the mass ratio of the heavy metal pollutants to the heavy metal normal temperature curing agent is 100:30, and the water content of the mixture is 4%;

[0073] Step 2. The mixture prepared in step 1 was left to stand for 48 hours at room temperature;

[0074] Step 3. Add water to the mixture treated in step 2 and mix ...

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Abstract

The invention discloses a heavy metal normal temperature solidifier and a method for solidifying heavy metal in a heavy metal pollutant by using the heavy metal normal temperature solidifier. The heavy metal normal temperature solidifier is produced from the following raw materials in parts by weight: 1-10 parts of a nanometer molecular sieve, 3-20 parts of calcium oxide, 1-30 parts of aluminum sulfate and 1-10 parts of ferric oxide. When the heavy metal in the heavy metal pollutant is solidified, firstly, the heavy metal pollutant and the heavy metal normal temperature solidifier are mixed evenly under a normal temperature condition to obtain a mixture; the produced mixture stands under the normal temperature condition for 48-72 hours; and water is added for mixing to make the water content in an obtained mixture reach 25-40%, and the mixture stands under the normal temperature condition. By means of the heavy metal normal temperature solidifier, the problems that in the prior art, the high-temperature solidifying production cost is high, secondary pollution is liable to be generated, a normal temperature solidifying effect is poor, the dosage is high are solved, moreover, the method for solidifying the heavy metal in the heavy metal pollutant by means of the heavy metal normal temperature solidifier is very simple, operation is simple and convenient, the solidifying cost is low, and a solidifying effect is good.

Description

technical field [0001] The invention relates to the technical field of treatment of heavy metal pollutants, in particular to a heavy metal room temperature curing agent and a method for curing heavy metals in heavy metal pollutants using the curing agent. Background technique [0002] Heavy metal pollution of the soil refers to human activities, the content of trace metal elements in the soil exceeds the background value, and the excessive content caused by excessive deposition is collectively referred to as soil heavy metal pollution. Heavy metal refers to the relative density of 4.5g / cm 3 above, or metals with a specific gravity greater than 5. [0003] With the rapid development of industry, the expansion of urbanization, and the continuous increase in the types and quantities of agricultural chemicals used, heavy metals have entered the soil environment in large quantities. Unlike organic matter, heavy metals cannot be degraded by microorganisms and can be enriched in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/08B09C1/08B09C1/00C09K109/00
CPCB09C1/00B09C1/08C09K17/08C09K2109/00
Inventor 孙毅丁桂平张伟
Owner 孙毅
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