Preparation method of novel liquid-state nano complex flocculant

A flocculant, liquid technology, applied in the field of preparation of new liquid nano-complex flocculants, to achieve the effect of improved treatment efficiency, sufficient reaction, and good sewage treatment effect

Inactive Publication Date: 2018-06-22
渤海今日(天津)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Preparation method of novel liquid-state nano complex flocculant

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[0031] A method for preparing a novel liquid nano-complex flocculant, comprising the following steps:

[0032] Step 1: using waste liquid containing hydrochloric acid, corroded aluminum, and oxidized iron discharged from the production process as raw materials, performing stirring treatment, and reacting to form a mixture solution of aluminum trichloride and ferric chloride;

[0033] Step 2: re-add sodium hydroxide solution to the mixture solution of aluminum trichloride and ferric chloride generated by the reaction, adjust to a certain pH value, and then let it stand for a period of time to obtain a polyaluminum ferric chloride solution.

[0034] The method also includes step three: adding the obtained polyaluminum ferric chloride solution into organic cationic macromolecular products to form a composite nano flocculant.

[0035] The specific step of step 1 is to gradually add corroded aluminum and oxidized iron to the waste liquid containing hydrochloric acid at 65°C to 75°C...

Embodiment 1

[0044] A method for preparing a novel liquid nano-complex flocculant, comprising the following steps:

[0045] Step 1: using waste liquid containing hydrochloric acid, corroded aluminum, and oxidized iron discharged from the production process as raw materials, performing stirring treatment, and reacting to form a mixture solution of aluminum trichloride and ferric chloride;

[0046] Step 2: re-add the sodium hydroxide solution to the mixture solution of aluminum trichloride and ferric chloride generated by the reaction, adjust to a certain pH value, and then let it stand for a while to obtain a polyaluminum ferric chloride solution to form a composite Nano flocculants.

Embodiment 2

[0048] A method for preparing a novel liquid nano-complex flocculant, comprising the following steps:

[0049] Step 1: using waste liquid containing hydrochloric acid, corroded aluminum, and oxidized iron discharged from the production process as raw materials, performing stirring treatment, and reacting to form a mixture solution of aluminum trichloride and ferric chloride;

[0050] Step 2: re-add sodium hydroxide solution to the mixture solution of aluminum trichloride and ferric chloride generated by the reaction, adjust to a certain pH value, and then let it stand for a period of time to obtain a polyaluminum ferric chloride solution.

[0051] Step 3: adding the obtained polyaluminum ferric chloride solution to organic cationic polymer products to form a composite nano flocculant.

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Abstract

The invention belongs to the technical field of sewage treatment and particularly relates to a preparation method of a novel liquid-state nano complex flocculant. The preparation method comprises thefollowing steps: step 1, taking waste liquid containing hydrochloric acid, corroded aluminum and oxidized ferric, discharged in production processes, as raw materials, and performing stirring treatment for reacting to generate an aluminum chloride and ferric chloride mixture solution; step 2: adding the aluminum chloride and ferric chloride mixture solution generated in the reaction to a sodium hydroxide solution, adjusting the solution to a certain pH value, and standing the solution for a period of time to obtain a polymeric aluminum ferric chloride (PAFC) solution; and step 3, adding the obtained PAFC solution to an organic cation polymer product to generate a nano flocculant. The nano complex flocculant prepared by the preparation method provided by the invention has the beneficial effects that the nano complex flocculant belongs to an efficient complex variety, and pesticide wastes are used as raw materials, so that waste utilization is realized, ecological environment protectionis realized, and green cyclic development of agriculture is promoted; and compared with a traditional solid-state product, the nano complex flocculant has the advantages of high reaction speed, full reaction, uniform concentration and greatly improved treatment efficiency.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a method for preparing a novel liquid nano-complex flocculant. Background technique [0002] With the deepening of my country's opening to the outside world, people's awareness of environmental protection is getting stronger and stronger, and the country has formulated corresponding discharge standards for the discharge of domestic sewage. Domestic garbage leachate and livestock breeding wastewater contain a large amount of heavy metals, and direct discharge will cause harm to the environment. Domestic garbage leachate and livestock breeding wastewater need to be treated to meet the standards before they are allowed to be discharged. [0003] Heavy metal pollution is one of the serious problems facing my country's water environment, and it is also a hugely harmful water pollution problem. Due to its high toxicity, accumulation and persistence, it seriously threatens the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/5245C02F1/56
Inventor 刘瑾星刘杨辉刘亚宏
Owner 渤海今日(天津)科技有限公司
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