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Heavy metal ion compound stabilizer and preparation method thereof

A technology for compounding stabilizers and heavy metal ions, which is applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the problems of not having broad-spectrum stabilizing effects of heavy metals, and achieves easy operation, simple preparation method, Environmental Risk Reduction Effects

Pending Publication Date: 2021-01-26
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An object of the present invention is to provide a compound stabilizer for heavy metal ions, which solves the problem that a single stabilizer in the prior art does not have a broad-spectrum stabilizing effect on all types of heavy metals

Method used

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  • Heavy metal ion compound stabilizer and preparation method thereof
  • Heavy metal ion compound stabilizer and preparation method thereof
  • Heavy metal ion compound stabilizer and preparation method thereof

Examples

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preparation example Construction

[0043] The preparation process of the adsorption leavening agent powder is as follows: sort the adsorption leavening agent to remove impurities, remove large particles with a diameter of more than 1cm, dry at 38-42°C with hot air until the moisture content is not greater than 10%, then break, pass 60-80 Mesh sieve to obtain adsorption leavening agent powder.

[0044] The specific preparation steps of a kind of heavy metal ion compound stabilizer of the present invention are as follows:

[0045] Step 1, take the amount of each component according to the proportion;

[0046] Step 2, sodium sulfide and potassium dihydrogen phosphate taken by weighing in step 1 are respectively configured into sodium sulfide saturated solution and potassium dihydrogen phosphate saturated solution;

[0047] Step 3, slowly mixing the saturated solution of sodium sulfide and the saturated solution of potassium dihydrogen phosphate under stirring conditions to obtain a mixed solution;

[0048] Step ...

Embodiment 1

[0053] A heavy metal ion complex stabilizer is composed of the following components by mass percentage: 2.5% sodium sulfide, 1.0% potassium dihydrogen phosphate, 96.5% mushroom slag powder, and the sum of the above mass percentages is 100%.

[0054] Prepare above-mentioned heavy metal ion complex stabilizer, concrete preparation steps are as follows:

[0055] Step 1. Weigh 2.5% of sodium sulfide, 1.0% of potassium dihydrogen phosphate, and 96.5% of mushroom residue powder, and the sum of the above mass percentages is 100%.

[0056] Step 2, sodium sulfide and potassium dihydrogen phosphate taken by weighing in step 1 are respectively configured into sodium sulfide saturated solution and potassium dihydrogen phosphate saturated solution;

[0057] Step 3, slowly mixing the saturated solution of sodium sulfide and the saturated solution of potassium dihydrogen phosphate under stirring conditions to obtain a mixed solution;

[0058] Step 4. Slowly add the mixed solution to the mus...

Embodiment 2

[0062] A heavy metal ion complex stabilizer is composed of the following components by mass percentage: 0.3% sodium sulfide, 2.3% potassium dihydrogen phosphate, 97.4% mushroom slag powder, and the sum of the above mass percentages is 100%.

[0063] Prepare above-mentioned heavy metal ion complex stabilizer, concrete preparation steps are as follows:

[0064] Step 1. Weigh 0.3% of sodium sulfide, 2.3% of potassium dihydrogen phosphate, and 97.4% of shiitake slag powder, and the sum of the above mass percentages is 100%.

[0065] Step 2, sodium sulfide and potassium dihydrogen phosphate taken by weighing in step 1 are respectively configured into sodium sulfide saturated solution and potassium dihydrogen phosphate saturated solution;

[0066] Step 3, slowly mixing the saturated solution of sodium sulfide and the saturated solution of potassium dihydrogen phosphate under stirring conditions to obtain a mixed solution;

[0067] Step 4. Slowly add the mixed solution to the mushro...

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Abstract

The invention discloses a heavy metal ion compound stabilizer. The heavy metal ion compound stabilizer is prepared from the following components in percentage by mass: 0.003 to 2.5 percent of sodium sulfide, 0.023 to 2.3 percent of monopotassium phosphate and 96.5 to 99.8 percent of adsorption swelling agent powder, totaling 100 percent. The form of heavy metal in the oil field treatment waste liquid and residues treated by the heavy metal ion compound stabilizer is obviously converted into a stable organic binding state and a most stable residue state from an unstable exchangeable state, a carbonate binding state and an iron-manganese binding state. The invention further discloses a preparation method of the heavy metal ion compound stabilizer. The preparation method is simple in processand easy to operate.

Description

technical field [0001] The invention belongs to the technical field of waste liquid treatment of oil field measures, and in particular relates to a metal ion stabilizer, and also relates to a preparation method of the stabilizer. Background technique [0002] Measures Waste liquid is a mixture of various liquid wastes produced in various process links in the oilfield production process. These liquid mixed wastes are transported to nearby treatment stations for centralized sewage treatment to achieve oil-water separation, solid-liquid separation, and measures. Waste liquid concentration Post-treatment measures Waste liquid residue. Among them, the waste liquid residue contains a variety of metal elements, especially heavy metals, which need to be stabilized. The stabilization of heavy metals is to transform the easily soluble and easily mobile heavy metal forms in solid waste residues into insoluble or difficult-to-migrate forms, and stabilize the forms existing in the resid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/62C02F101/20
CPCC02F1/62C02F2101/20
Inventor 孙先锋肖宇婷韩宇星陈静静
Owner XI'AN POLYTECHNIC UNIVERSITY
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