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Solid adsorption settling agent and preparation method and application

A solid adsorption and settling agent technology, applied in the fields of adsorbed water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of failing to meet the treatment requirements, secondary pollution of water resources, and unsatisfactory treatment effect, and save energy. The effect of dissolving water, reducing pollution and reducing secondary pollution

Active Publication Date: 2016-01-06
SHIJIAZHUANG LANJIANG BIOLOGICAL ENVIRONMENT PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The industrial wastewater produced in the mining and coal mining fields is mainly acidic wastewater, which contains a variety of harmful substances and heavy metal salts. Currently, the industrial wastewater in the mining and coal mining fields often uses polyaluminum chloride and polyacrylamide as water treatment agents. However, the inorganic polymer aluminum flocculant has the problem of aluminum toxicity in the process of use, which will cause secondary pollution to water resources, and will limit the use of chemicals in alpine regions, resulting in unsatisfactory treatment effects and cannot achieve processing request

Method used

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  • Solid adsorption settling agent and preparation method and application
  • Solid adsorption settling agent and preparation method and application
  • Solid adsorption settling agent and preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This embodiment relates to a group of solid adsorption sedimentation agents, and its component formula is shown in the following table:

[0022]

[0023] Examples 1.1 to 1.5 are solid adsorption-sedimentation agents of the present invention, and examples 1.6 and 1.7 are solid adsorption-settling agents whose component formulations are not within the scope of the present invention, and are used for comparison of use effects.

[0024] The solid adsorption-sedimentation agent in the above-mentioned embodiment adopts following preparation method to make, comprises the following steps:

[0025] a. Weigh polymerized dimethyl diallyl ammonium chloride homopolymer according to the composition formula in the above table, add it into water and stir until completely dissolved to obtain polymerized dimethyl diallyl ammonium chloride solution, the amount of dissolved water It is 4 times of the weight of polymerized dimethyl diallyl ammonium chloride homopolymer;

[0026] b. Weig...

Embodiment 2

[0029] This example relates to the verification of the use effect of the solid adsorption-sedimentation agent prepared in Example 1.

[0030] The use effect is evaluated by flocculation and sedimentation experiments: a flocculation and sedimentation experiment is carried out on a kind of coal mining roadway wastewater (its initial suspended solids concentration is 230mg / L, initial COD is 60mg / L), 500ml of coal mining roadway wastewater is taken, and solid adsorption sedimentation is added 0.025g of solution, fully stirred for 2-5 minutes, then settled, observed the state of flocs, allowed to settle for 10 minutes, and detected the turbidity and COD of the supernatant.

[0031] In the experiment, a turbidimeter was used to detect the turbidity of the supernatant, and the COD was detected by the national standard GB11914-1989 Water Quality_Determination of Chemical Oxygen Demand_Potassium Dichromate Method.

[0032] The use effect of solid adsorption sedimentation agent is shown...

Embodiment 3

[0036] This embodiment relates to the composite agent (A) of the solid adsorption sedimentation agent of embodiment 1.1 and embodiment 1.5 and commonly used polyaluminum chloride and polyacrylamide, and has the same component distribution ratio as embodiment 1.1 but the preparation method is different, only The adsorption flocculant (B) obtained by simple and uniform mixing has the same component distribution ratio as Example 1.5 but the preparation method is different, and the comparative verification of the use effect of the adsorption flocculant (C) obtained only by simple and uniform mixing, the effect experiment is the same as Example two, the results are shown in the table below:

[0037]

[0038] It can be seen from the results in the above table that the adsorption flocculant of the present invention can efficiently adsorb and remove dissolved inorganic and organic pollutants and suspended particles in wastewater, form solid floc particles, achieve good sedimentation...

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Abstract

The invention relates to a solid adsorption settling agent. The solid adsorption settling agent is prepared from, by weight, 15-25 parts of polymerization dimethyl diallyl ammonium chloride homopolymer, 20-40 parts of volcanic, 30-50 parts of calcium aluminate powder, 5-15 parts of activated carbon and 5-15 parts of bentonite. The obtained solid adsorption settling agent can efficiently adsorb and remove soluble inorganic and organic pollutants and suspended particles in waste water, a good settling clarification effect is achieved, COD is effectively reduced, and pollution is reduced. The solid adsorption settling agent obtained through the preparation method can be directly put for use, dissolution is not needed, and the settling agent is easy to disperse in waste water, can take effect fast and is suitable for being used under a high and cold environment.

Description

technical field [0001] The invention relates to a water treatment agent, in particular to a solid adsorption sedimentation agent, and at the same time, the invention also relates to a preparation method and application of the solid adsorption sedimentation agent. Background technique [0002] With the development of human society and the expansion of industrial and agricultural production scale, human demand for clean fresh water is increasing day by day. However, due to the failure of effective use and rational development of water resources in social production and life, water resources are seriously polluted and ecological balance is damaged. to damage, leading to water stress and endangering human life. According to the relevant reports of the Ministry of Environmental Protection of my country: the organic pollution of major rivers in my country is serious, and it is expanding continuously, and the pollution of water sources is becoming more and more prominent; most of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F1/28C02F1/52
Inventor 赵永强刘岩王卓
Owner SHIJIAZHUANG LANJIANG BIOLOGICAL ENVIRONMENT PROTECTION TECH CO LTD
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