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Sewage treatment agent and preparation method thereof

A technology of sewage treatment agent and solvent, which is applied in water/sewage treatment, water/sludge/sewage treatment, sterilization/microdynamic water/sewage treatment, etc. It can solve the problem of poor treatment effect of physical methods and cost of biological treatment High, complex process and other problems, to achieve good stability, good anti-color effect, and enhance the effect of adsorption bridging structure

Active Publication Date: 2018-07-24
安徽金兄弟环保科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are many methods to deal with the pollution of water resources, such as physics, chemistry, and biology. However, most of the physical methods have poor treatment effects and unstable treatment rates; biological methods are too expensive to be popularized and used; more chemical methods are used. To treat sewage, that is, to treat sewage by putting sewage treatment agents
However, the existing sewage treatment agents have secondary pollution problems in their reagent components, which will also have a certain impact on the environment.
In addition, due to the variety and mixture of water pollutants, and the main water treatment agent currently used has a single function, it is necessary to add various agents such as flocculants, corrosion inhibitors, and fungicides to the water treatment system, and the treatment process is complicated. , a lot of equipment, complex operation process, large dosage of medicament, high cost, and various reagents will resist each other through various chemical reactions, resulting in reduced efficacy

Method used

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  • Sewage treatment agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of sewage treatment agent, comprising the steps of:

[0035] 1) Surface modification of polymeric aluminum iron silicate: add 30 g of polymeric aluminum iron silicate to 100 g of ethanol, then add 15 g of 3-chloropropyltriethoxysilane, stir and react at 40 ° C for 6 hours, and remove the solvent by rotary evaporation can;

[0036] 2) Amino starch-modified surface-modified polyaluminum iron silicate: add 30 g of the surface-modified polyaluminum iron silicate prepared in step 1) into 100 g of isopropanol, and add 10 g of amino starch to it, and stir at 40°C Reacted for 4 hours, and the solvent was removed by rotary evaporation;

[0037] 3) Dimethyl-vinyl phosphate transesterification: Add 30 g of amino starch modified surface-modified polyaluminum iron silicate prepared in step 2) into 100 g of acetone, then add 15 g of dimethyl-vinyl phosphate, KOH 5g and 5g of chloranil, react at 70°C for 10 hours, then filter, wash with water for 3 times, absorb...

Embodiment 2

[0042] A preparation method of sewage treatment agent, comprising the steps of:

[0043]1) Surface modification of polyaluminum iron silicate: add 35 g of polyaluminum iron silicate into 110 g of isopropanol, then add 18 g of 3-chloropropyltriethoxysilane, stir and react at 42°C for 6.5 hours, and spin evaporate Just remove the solvent;

[0044] 2) Amino starch-modified surface-modified polyaluminum iron silicate: add 35 g of the surface-modified polyaluminum iron silicate prepared in step 1) into 115 g of isopropanol, and add 13 g of amino starch to it, and stir at 45°C Reacted for 4.5 hours, and the solvent was removed by rotary evaporation;

[0045] 3) Dimethyl-vinyl phosphate transesterification: add 35 g of amino starch modified surface-modified polyaluminum iron silicate prepared in step 2) into 115 g of acetone, then add 17 g of dimethyl-vinyl phosphate, NaOH 6g and 6.5g of l,4-naphthoquinone were reacted at 75°C for 10.5 hours, then filtered, washed with water for 4 ...

Embodiment 3

[0050] A preparation method of sewage treatment agent, comprising the steps of:

[0051] 1) Surface modification of polyaluminum iron silicate: add 40 g of polyaluminum iron silicate to 135 g of n-butanol, then add 20 g of 3-chloropropyltriethoxysilane, stir and react at 45 °C for 7 hours, and spin evaporate Just remove the solvent;

[0052] 2) Amino starch-modified surface-modified polyaluminum iron silicate: add 40 g of the surface-modified polyaluminum iron silicate prepared in step 1) into 136 g of isopropanol, and add 15 g of amino starch to it, and stir at 48°C Reacted for 5 hours, and the solvent was removed by rotary evaporation;

[0053] 3) Dimethyl-vinyl phosphate transesterification: add 40 g of amino starch modified surface-modified polyaluminum iron silicate prepared in step 2) into 130 g of acetone, then add 20 g of dimethyl-vinyl phosphate, NaOCH 3 7.5g and 8g of chloranil were reacted at 80°C for 11 hours, then filtered, washed with water for 5 times, then a...

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Abstract

The invention discloses a preparation method of a sewage treatment agent. The method comprises the following steps: 1) surface modification of polyaluminum ferric silicate; 2) modification of the surface-modified polyaluminum ferric silicate with amino starch; 3) dimethyl-vinyl phosphate exchange; 4) polymerization; and 5) ion exchange. The invention also discloses the sewage treatment agent prepared by the preparation method of the sewage treatment agent. The sewage treatment agent has the advantages of remarkable sewage treatment effect, small use amount, fast reaction speed, no generation of toxic and harmful gases in the reaction process, safety and environmental protection in use, safety to human bodies and no corrosion to devices before and after the reaction, simple use method, andno addition of devices or materials.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and relates to a sewage treatment agent and a preparation method thereof. Background technique [0002] With the development of industry, the acceleration of urbanization and the expansion of population, our country is facing a very severe environmental situation. The three major pollution sources consisting of domestic sewage, agricultural sewage and industrial sewage are directly or indirectly threatening people's health. The state has paid more and more attention to the discharge of pollutants and the treatment of sewage. [0003] At present, there are many methods to deal with the pollution of water resources, such as physics, chemistry, and biology. However, most of the physical methods have poor treatment effects and unstable treatment rates; biological methods are too expensive to be popularized and used; more chemical methods are used. To treat sewage, that is, to treat sewage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/50C02F101/20
CPCC02F1/00C02F1/50C02F2101/20
Inventor 董廷显李军
Owner 安徽金兄弟环保科技股份有限公司
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