A kind of environment-friendly water treatment agent and its preparation method and water treatment method

An environment-friendly, water treatment agent technology, applied in the field of water treatment, can solve the problems of low recovery efficiency and unsatisfactory degradation rate of water treatment agents, etc., achieve extensive and excellent adsorption properties, improve environmental friendliness, and improve flocculation ability Effect

Active Publication Date: 2018-08-24
工大环境股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an environmentally friendly water treatment agent and its preparation method in order to solve the technical problems of low water treatment agent recovery efficiency and unsatisfactory degradation rate of the composite water treatment agent in the prior art, and to provide a method for applying the compound water treatment agent. The water treatment method of an environmentally friendly water treatment agent, in the present invention, through the compounding of magnetic substances, the rapid sedimentation of flocs can be realized under the action of a magnetic field, which greatly improves the recovery efficiency of the water treatment agent. Zinc-modified polypropylene is used Amides improve the degradation of water treatment agents, and the synergistic effect of the two improves the environmental friendliness of water treatment agents

Method used

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  • A kind of environment-friendly water treatment agent and its preparation method and water treatment method
  • A kind of environment-friendly water treatment agent and its preparation method and water treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0045] (1) Carboxylation of graphene oxide

[0046] Add sodium hydroxide and chloroacetic acid to 5 mg / mL graphene oxide aqueous solution, graphene oxide aqueous solution: sodium hydroxide: chloroacetic acid = 1L: 2g: 2g, mix and react for 1 hour, separate and wash to obtain carboxylated oxidation Graphene;

[0047] (2) Preparation of carboxylated ferric oxide

[0048] Ferric trichloride, sodium acrylate, anhydrous sodium acetate and ethylene glycol mixture are transferred to the reaction kettle, wherein when ferric chloride, sodium acrylate, anhydrous sodium acetate and ethylene glycol are mixed, the feed ratio is 27g: 75g: 75g: 1000ml, react at 200°C, after cooling, wash with ethanol and deionized water to obtain surface carboxylated ferric oxide;

[0049] (3) Preparation of acrylamide oligomer / graphene oxide / ferric oxide composite

[0050] Mix carboxylated graphene oxide, surface carboxylated ferric oxide and acrylamide oligomer in DMSO, add EDCI, among them, DMSO: carboxy...

Embodiment 1-2

[0061] In this example, the preparation process of the environment-friendly water treatment agent is the same as Example 1-1, only the ratio of each component is adjusted. The parts by weight of each component are as follows:

[0062] Acrylamide oligomer / graphene oxide / Fe3O4 complex 8,

[0063] Zinc modified polyacrylamide 55,

[0064] Ferric aluminum polysilicate 35,

[0065] sodium bicarbonate 5.

Embodiment 1-3

[0067] In this example, the preparation process of the environment-friendly water treatment agent is the same as Example 1-1, only the ratio of each component is adjusted. The parts by weight of each component are as follows:

[0068] Acrylamide oligomer / graphene oxide / ferric oxide complex 6,

[0069] Zinc modified polyacrylamide 60,

[0070] Ferric aluminum polysilicate 30,

[0071] sodium bicarbonate 5.

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Abstract

The invention relates to an environment-friendly water treatment agent, a preparing method thereof and a water treatment method. The environment-friendly water treatment agent comprises acrylamide oligomer / oxidized graphene / ferroferric oxide compounds, zinc modified polyacrylamide, polysilicate aluminum ferrite and sodium bicarbonate. A preparing method in which oxidized graphene is grafted on acrylamide oligomers includes the three steps of carboxylation of the oxidized graphene, preparing of carboxylation ferroferric oxide and composite reacting. By means of the water treatment agent, magnetic-field-assisting rapid flocculation and efficient recycling can be achieved; meanwhile, as the zinc modified polyacrylamide is adopted, the decomposition time of the polyacrylamide is effectively shortened, and the requirement for the environment-friendly performance is met. The water treatment method includes the steps of mixing, primary flocculation, secondary flocculation and filtering. The water treatment agent is efficiently used through a lower-layer-water backflow step, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to an environment-friendly water treatment agent, a preparation method thereof and a water treatment method using the environment-friendly water treatment agent. Background technique [0002] Water treatment agents are widely used in the field of raw water and sewage treatment, which can reduce the sensory indicators such as turbidity and color of raw water. Water treatment agents can be used to remove a variety of high-molecular organic substances, some heavy metals and radioactive substances. It can be used as an independent treatment system or combined with other treatment unit processes as pretreatment, intermediate treatment and final treatment. It can also be used It is used in the thickening process before sludge dewatering to improve the dewatering performance of sludge. [0003] However, the recovery of water treatment agents is a difficult problem in the governanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/54C02F1/56
Inventor 李宏亮
Owner 工大环境股份有限公司
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