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A kind of heavy metal composite adsorbent and preparation method thereof

A composite adsorption and heavy metal technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as waste and ineffective utilization, and achieve the effect of realizing secondary utilization, expanding the scope of utilization, and being conducive to environmental protection.

Inactive Publication Date: 2018-10-19
辽宁锐派尔环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, wheat straw pulp residue, as a kind of papermaking waste, cannot be effectively utilized and becomes a waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The invention discloses a heavy metal composite adsorbent. The raw material formula is composed of the following components by weight:

[0022] 50 parts of wheat straw pulp residue;

[0023] Concentration is 10 parts of sodium sulfite solution of 5%;

[0024] 10 parts of slag;

[0025] 20 parts of polyacrylamide.

[0026] The invention also discloses a preparation method of the heavy metal composite adsorbent, which comprises the following steps:

[0027] A. Seal the wheat straw pulp residue for 12 hours.

[0028] B. Grind the treated wheat straw pulp residue to powder and set aside.

[0029] C. Add sodium sulfite solution to the wheat straw pulp slag powder ground in step B, and treat in a constant temperature water bath; after being treated with sodium sulfite solution, the wheat straw pulp slag initially has the ability to adsorb heavy metals.

[0030] D. Wash the processed wheat straw pulp residue in step C until the pH value is neutral, and dry to obtain a sem...

Embodiment 2

[0034] This embodiment is basically the same as Example 1, except that the raw material formula of the composite adsorbent of this embodiment is composed of the following components in parts by weight:

[0035] 100 parts of wheat straw pulp pulp;

[0036] Concentration is 15 parts of sodium sulfite solution of 5%;

[0037] 15 parts of slag;

[0038] 30 parts of polyacrylamide.

[0039] The adsorption capacity of the composite adsorbent obtained in this example to heavy metals is equivalent to Example 1.

Embodiment 3

[0041] This embodiment is basically the same as Example 1, except that the raw material formula of the composite adsorbent of this embodiment is composed of the following components in parts by weight:

[0042] 78 parts of wheat straw pulp pulp;

[0043] Concentration is 14 parts of sodium sulfite solution of 5%;

[0044] 12 parts of slag;

[0045] 26 parts of polyacrylamide.

[0046] The adsorption capacity of the composite adsorbent obtained in this example is equivalent to that of Example 1, but the efficiency is higher, and the adsorption efficiency is about 1.5 times that of Example 1.

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PUM

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Abstract

The invention discloses composite adsorbent for heavy metal and a preparation method of the composite adsorbent. The composite adsorbent is prepared from, by weight, 50-100 parts of wheat straw pulp residues, 10-15 parts of a sodium sulfite solution with the concentration being 5%, 10-15 parts of slag and 20-30 parts of polyacrylamide. According to the composite adsorbent for heavy metal and the preparation method of the composite adsorbent, sodium sulfite is utilized for treating the wheat straw pulp residues, so that the wheat straw pulp residues can have the capability of adsorbing heavy metal, the utilization scope of the pulp residues is expanded, reutilization of the pulp residues is achieved, environmental protection is facilitated, the requirement of sustainable development is met, and the composite adsorbent and the preparation method thereof are worthy of application and popularization.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a heavy metal composite adsorbent and a preparation method thereof. Background technique [0002] As people's awareness of environmental protection continues to strengthen, the country's environmental protection requirements are becoming more and more stringent, and the pressure on the paper industry is also increasing. However, wheat straw pulp residue, as a kind of papermaking waste, cannot be effectively utilized and becomes a waste. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] The object of the present invention is to provide a heavy metal composite adsorbent and a preparation method thereof, so as to expand the utilization range of pulp residue. [0005] The technical scheme of the present invention is as follows: a heavy metal composite adsorbent, wherein the raw material formula is composed of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/30
CPCB01J20/045B01J20/24B01J20/262
Inventor 黄文辉
Owner 辽宁锐派尔环保科技有限公司