A kind of heavy metal sewage multifunctional treatment agent and its synthesis method

A multi-functional, heavy metal technology, applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of increasing equipment and input costs, difficulty in rapid settlement, etc., to achieve molecular weight Large, multiple sites, high efficiency effect

Active Publication Date: 2017-02-22
杭州诗迈医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the stability of the composite in water, it is difficult to settle quickly, and the general process needs to add additional polymer coagulant to assist the settlement, which increases the cost of equipment and investment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] step 1):

[0040] In the there-necked flask with magnetic stirring, add 0.05 mol of cyanuric chloride ethanol solution, cool to 0-5 ° C, then add 0.15 mol pentaethylene hexamine, the reaction temperature is slowly warming up to 80-100 ° C in stages, Slowly increase the temperature in stages: 0-5°C for 30min-5h, 30-50°C for 30min-5h, 80-100°C for 30min-5h. During the reaction process, use 5-10% alkali solution to adjust the pH at 8-11, and the reaction time is 4-6 hours; the above-mentioned reaction system is cooled to 0-10°C, and then 1.05mol of epichlorohydrin is added within this temperature range, During the reaction process, use 5-10% alkali solution to adjust the pH to 8-11. After the epichlorohydrin is added dropwise, stir at room temperature for 2-4 hours;

[0041] Step (2):

[0042] Dissolve the reaction product synthesized in step (1) in water, slowly add dropwise the mixture of 0.9 mol pentaethylene hexamine and 0.15 mol triethylamine, the oil bath temperatu...

Embodiment 2

[0047] step 1):

[0048] Add 1.2mol ethanol-water solution of epichlorohydrin to a three-necked flask with magnetic stirring, then slowly add 0.15 mol pentaethylenehexamine dropwise, the reaction temperature rises slowly to 80-110°C, and slowly rises to 0-5°C C reaction 30min-5h, 30-50°C, reaction 30min-5h, 80-100°C, reaction 30min-5h. During the reaction process, use 5-10% alkali solution to adjust the pH at 8-11, and the reaction time is 4-6 hours;

[0049] Step (2):

[0050] Dissolve the reaction product synthesized in step (1) in water, slowly add dropwise the aqueous solution mixture of 0.95 mol hexaethyleneheptamine, 0.05 mol triethylamine, and 0.1 mol mercaptoethylamine, and the temperature of the oil bath during the dropwise addition is 80-110° C. During the reaction process, use 5-10% alkali solution to adjust the pH to 8-11. After the dropwise addition, maintain the reaction temperature at this temperature for 4 hours, cool down and purify to obtain a hyperbranched...

Embodiment 3

[0055] step 1):

[0056] Add 1.2mol ethanol-water solution of epichlorohydrin to a three-necked flask with magnetic stirring, then slowly add 0.15 mol pentaethylenehexamine dropwise, the reaction temperature rises slowly to 80-110°C, and slowly rises to 0-5°C C reaction 30min-5h, 30-50°C, reaction 30min-5h, 80-110°C, reaction 30min-5h. During the reaction process, use 5-10% alkali solution to adjust the pH at 8-11, and the reaction time is 4-6 hours;

[0057] Step (2):

[0058] Dissolve the reaction product synthesized in step (1) in water, slowly add dropwise the aqueous solution mixture of 0.95 mol pentaethylenehexamine and 0.1 mol triethylamine, the temperature of the oil bath is 80-110°C during the dropping process, and use Adjust the pH to 8-11 with 5-10% alkaline solution, after the dropwise addition, maintain the reaction at this temperature for 4 hours, cool down and purify to obtain a hyperbranched cationic polymer.

[0059] Step (3):

[0060] Dissolve the reactio...

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PUM

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Abstract

The invention belongs to the technical field of industrial water processing, and especially relates to a heavy metal sewage multifunctional processing agent and a synthesis method thereof. The heavy metal sewage multifunctional processing agent is mainly composed of polyethylene polyamine, cyanuric chloride, and epoxy chloropropane, has a flocculation effect on solid suspension and colloid, and can eliminate heavy metal ions, suspension, and floating oil at the same time. The invention further provides a synthesis method of the heavy metal sewage multifunctional processing agent. The processing agent has the advantages of many acting sites between the processing agent and heavy metal ions, large molecular weight, high efficiency, and integrated eliminations of heavy metal ions, suspension, and floating oil.

Description

technical field [0001] The invention belongs to the technical field of industrial water treatment, and in particular relates to a multifunctional treatment agent for heavy metal sewage and a synthesis method. Background technique [0002] Heavy metal sewage refers to the sewage containing heavy metals discharged from industrial production processes such as mining, machinery manufacturing, chemical industry, electronics, and instruments. Heavy metal (such as cadmium, nickel, mercury, zinc, etc.) sewage is the most serious environmental pollution and harmful to human beings. One of the most harmful industrial sewage, heavy metals in sewage generally cannot be decomposed and destroyed, but can only be transferred to their location and change their physical and chemical forms. Chemical, physical, and biological methods are often used for treatment. The heavy metals in the treated water are lower than Emission standards can be discharged or reused. In contrast, the chemical meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/56C02F1/62
Inventor 李连山张立鹏靖波柳沛丰
Owner 杭州诗迈医药科技有限公司
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