A method for producing high-concentration aluminum-zinc-magnesium multi-ion composite water purifier

A technology of aluminum-zinc-magnesium polyion and water purifying agent, which is applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of long production cycle and cumbersome steps, and achieve the effect of saving cost, speeding up separation speed and improving removal rate

Active Publication Date: 2011-12-14
童益
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The normal production of high-concentration aluminum-zinc-magnesium multi-ion composite water purifier requires a multi-step method. First, pressurize and heat hydrochloric acid or sulfuric acid and bauxite to 110-120°C for 2 hours, then add calcium aluminate powder and react for 2 hours. Then add magnesium oxide for alka

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1: A method for producing a high-concentration aluminum-zinc-magnesium multi-ion composite water purifier, the steps are as follows: the formula ratio is calculated in parts by weight:

[0028] (1) Take 100 parts of aluminum alloy sludge containing multiple metals, add 10-30 parts of circulating filtrate (water) and 3-10 parts of conditioner, mix thoroughly, and pump into the variable filter chamber pressure through a diaphragm pump After initial filtration and pressure retention in the filter, a filter cake with a solid content of 10% is obtained, which is then hydraulically filtered through a filter plate hydraulic device to form a dry sludge cake with a solid content of 50%. The filtrate is reused as a circulating filtrate. Finally, the dried sludge is crushed by a crusher;

[0029] The conditioner was purchased from Hangzhou Jingwang Filter Press Co., Ltd.

[0030] (2) Use an anti-corrosion pump to drive 10 parts of waste sulfuric acid with a mass concentration of...

Example Embodiment

[0036] Example 2: A method for producing a high-concentration aluminum-zinc-magnesium polyion composite water purifier, the steps are as follows: the formula ratio is calculated in parts by weight:

[0037] (1) Take 100 parts of aluminum alloy sludge containing multiple metals, add 10-30 parts of circulating filtrate and 3-10 parts of conditioner, mix thoroughly, and pump into the variable filter press through a diaphragm pump After initial filtration and pressure retention, a filter cake with a solid content of 20% is obtained, which is then hydraulically filtered through a filter plate hydraulic device to form a dry sludge cake with a solid content of 70%. The filtrate is reused as a circulating filtrate and finally crushed The machine crushed the dried sludge;

[0038] The conditioner was purchased from Hangzhou Jingwang Filter Press Co., Ltd.

[0039] (2) 30 parts of waste hydrochloric acid with an acid content of 50% are pumped into the anticorrosive reaction kettle (pool) with...

Example Embodiment

[0044] Example 3: A method for producing a high-concentration aluminum-zinc-magnesium multi-ion composite water purifier, the steps are as follows: the formula ratio is calculated in parts by weight:

[0045] (1) Take 100 parts of aluminum alloy sludge containing multiple metals, add 10-30 parts of circulating filtrate and 3-10 parts of conditioner, mix thoroughly, and pump into the variable filter press through a diaphragm pump After initial filtration and pressure retention, a filter cake with a solid content of 15% is obtained, which is then hydraulically filtered through a filter plate hydraulic device to form a dry sludge cake with a solid content of 60%. The filtrate is reused as a circulating filtrate and finally crushed The machine crushed the dried sludge;

[0046] The conditioner was purchased from Hangzhou Jingwang Filter Press Co., Ltd.

[0047] (2) 60 parts of industrial hydrochloric acid with an acid content of 30% are pumped into the anticorrosive reaction kettle (poo...

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Abstract

The invention relates to a method for producing a high concentration composite water purifying agent with multi-ions of aluminium, zinc and magnesian. The method is characterized by comprising the following steps of: adding a circulation filtrate and a modifying agent into aluminium alloy sludge containing multiple metals, mixing them fully, and conducting hydraulic filtration through a filter plate hydraulic device so as to form a dry sludge filter cake, which is then delivered to a pulverizer for pulverizing, thus obtaining dry sludge; adding an acid into the dry sludge; adjusting the pH value by controlling the adding amount of the sludge; conducting stirring for reaction continuously at a normal temperature to make the dry sludge dissolved completely, thus obtaining a composite water purifying agent (A) with multi-ions of aluminium, zinc and magnesian; adding a heavy metal trapping agent into the obtained composite water purifying agent (A) with multi-ions of aluminium, zinc and magnesian, continuing to stir the agent and pouring it to a sedimentation basin, then carrying out solid-liquid separation with a filter press. Thus, the liquid phase is a composite water purifying agent (B) with multi-ions of aluminium, zinc and magnesian, while the solid phase is a residue of insoluble heavy metal complexes and insoluble substances. The method of the invention effectively solves the problem of treating the sludge, creates remarkable economic benefits, and eliminates the risk of environmental pollution caused by the heavy metal sludge.

Description

technical field [0001] A method for producing a high-concentration aluminum-zinc-magnesium multi-ion composite water purifier. The invention relates to a method for preparing a high-concentration aluminum-zinc-magnesium multi-ion composite water purifier by using aluminum alloy sludge containing various metals as a raw material. The invention utilizes the aluminum alloy sludge containing various metals produced by aluminum alloy processing, and produces a high-concentration aluminum-zinc-magnesium multi-ion composite water purifier by means of pressure filtration and reaction, which is used for treating waste water and belongs to the technical field of environmental protection. Background technique [0002] Since a large amount of sludge will be produced in the processing and production of aluminum alloy, the sludge contains utilizable components (aluminum, zinc, magnesium) and harmful components, whether it can be dissolved and the useful components can be fully utilized, an...

Claims

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Application Information

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IPC IPC(8): C02F1/52
Inventor 童益
Owner 童益
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