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Tanning wastewater flocculant
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Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of tanning wastewater and flocculant, which is applied in the treatment of animal processing wastewater, flocculation/sedimentation water/sewage treatment, water pollutants, etc., can solve problems affecting physical health and social environment, etc.
Inactive Publication Date: 2015-06-03
QINGDAO HAOTAI WATER
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Summary
Abstract
Description
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Application Information
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Problems solved by technology
A large amount of wastewater generated during the whole process is discharged, and the wastewater contains a large amount of high-concentration organic matter, suspended impurities and toxic and harmful chemical substances. If not treated, the consequences will seriously affect human health and the social environment.
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0008] Take the preparation of tannery wastewater flocculant 100g as an example:
[0009] 17g of ferric sulfate, 8g of aluminum sulfate, 4g of ferrous sulfate, 1.2g of polyacrylamide, and the balance is water.
[0010] A preparation method of a tannery wastewater flocculant is as follows: adding the above-mentioned ratio of polyferric sulfate, polyacrylamide, polyaluminum chloride, and aluminum sulfate to a certain amount of water, and stirring evenly to obtain a tannery wastewater flocculant.
[0011] In the above examples, a reasonable mass ratio is applied, so that the obtained product has a good removal effect on high-concentration chromium salts and sulfides in tannery wastewater.
Embodiment 2
[0013] Take the preparation of tannery wastewater flocculant 100g as an example:
[0014] 16g of ferric sulfate, 6.5g of aluminum sulfate, 5.2g of ferrous sulfate, 2g of polyacrylamide, and the balance is water.
[0015] The preparation method of the tannery wastewater flocculant is the same as that of Example 1.
[0016] In the above-mentioned examples, the mass fraction of each substance is changed, so that the obtained product can effectively flocculate the suspended solids in the tanning wastewater.
Embodiment 3
[0018] Take the preparation of tannery wastewater flocculant 100g as an example:
[0019] Ferric sulfate 20g, aluminum sulfate 9.5g, ferrous sulfate 6g, polyacrylamide 1.5g, and the balance is water.
[0020] In the above examples, by changing the mass fraction of each substance, the obtained product has a good purification effect on tannery wastewater, and can effectively purify water quality.
[0021] In summary, the present invention is applicable to the treatment of tannery wastewater, can effectively remove chromium ions and sulfides in wastewater, has efficient flocculation effect, and plays a certain role in protecting the environment and water resources.
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PUM
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Abstract
The invention discloses a tanning wastewater flocculant which is composed of the following components in parts by mass: 15-20 parts of ferricsulfate, 5-10 parts of aluminum sulfate, 4-6 parts of ferroussulfate, 1-2 parts of polyacrylamide and the balance of water. The tanning wastewater flocculant is suitable for treating tanning wastewater, can effectively remove chromium ions and sulfides in wastewater, has efficient flocculation effect, and has certain actions on environment protection and water resource protection.
Description
technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a tanning wastewater flocculant. Background technique [0002] my country is a big country that produces leather. Most of the finished leather is medium and low-grade leather. The production enterprises are mainly small and medium-sized tanneries, which are widely distributed and scattered. At the same time, it also forms a huge waste of water resources. With the promotion of cleaner production and the development and investment of new technologies, people have put forward higher requirements for the treatment of tannery industrial wastewater. [0003] At present, the vast majority of tanning enterprises in my country still adopt the traditional ash-alkali production process. The main raw materials are slaughtered cattle, pigs, and sheep leather. The production process consists of three stages: preparation, tanning, and finishing. Production process In China, many chem...
Claims
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Application Information
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