WO2019095370A1

WO2019095370A1 - Method for treating sewage

Info

Publication number: WO2019095370A1
Application number: PCT/CN2017/111877
Authority: WO
Inventors: 徐渊; 李保宁
Original assignee: 江苏宏大环保科技有限公司
Priority date: 2017-11-20
Filing date: 2017-11-20
Publication date: 2019-05-23

Abstract

Disclosed is a method for treating sewage. In particular, the present invention relates to a method for treating sewage by utilizing the action of clay mixed with coal ash, wherein same belongs to the field of the treatment of sewage. The method involves first crushing clay, coal ash and lime, pouring the crushed mixture into sewage to be treated, and stirring same for 10 hours; and then introducing corn starch into the sewage to be treated, and rapidly stirring same for 10 minutes. The treatment cost is low, the adsorption and flocculation ability of the clay is strong, the sedimentation time is short, there is less sludge, and the effect and efficiency of the sewage treatment are further improved; in addition, the addition of corn starch and activated carbon further enhance the adsorption and flocculation ability, and no chemical preparation remains in the water after same has been treated.

Description

Sewage treatment method

Technical field

The invention relates to a sewage treatment method, in particular to a sewage treatment method which uses a mixture of clay and fly ash, and belongs to the field of sewage treatment.

Background technique

With the continuous development of industry, the use of resources is also increasing. In particular, water resources, less than 1% of fresh water or about 0007% of water on Earth can be directly used by humans. Thereby saving water resources and water resources reuse has become a concern. In the reuse of water resources, sewage treatment is of paramount importance. At present, there are many methods for sewage treatment, but the treatment of adding chemical agents is generally used, which will leave chemical elements in the water, which will cause certain harm to the human body.

Summary of the invention

In order to achieve the above object, an object of the present invention is to provide a sewage treatment method in view of the above-mentioned deficiencies of the prior art.

In order to achieve the above objectives, the implementation process is as follows:

Clay, fly ash and lime are preferably pulverized, and the pulverized mixture is poured into the sewage to be treated, stirred for 10 hours, and then the corn starch is introduced into the sewage to be treated, rapidly stirred for 10 minutes, and then poured into the flocculant activated carbon. Stir for 10 minutes, finally add the edible salt, stir for 5 minutes, settle for 1 hour, add pH adjuster, stir for 5-10 minutes, adjust the pH to 6.6-7.5, precipitate the water with adjusted pH and Filter and add vinegar to the filtered water.

The weight ratio of the input amount of the clay, fly ash and lime to the sewage is 7:10000.

The weight ratio of the clay to fly ash was 11, and the weight ratio of lime to clay was 1:6.

The weight ratio of the clay to corn starch is 4:1.

The weight ratio of the clay to the activated carbon is 20:1.

The weight ratio of the clay to the edible salt is 100:1.

The weight ratio of the edible vinegar to the filtered water is 1:20000.

The invention has the beneficial effects that the clay and the fly ash are used as the main raw materials for treating the sewage, the cost of the sewage treatment is low, the adsorption and flocculation ability of the clay is strong, the sedimentation time is short, the sludge is less, and the sewage treatment is improved. The effect and efficiency, and the addition of corn starch and activated carbon, further provide adsorption and flocculation capabilities, and no chemical residues remain in the treated water.

Detailed ways

A sewage treatment method characterized in that the implementation process is as follows

It is preferred to pulverize clay, fly ash and lime into 4, and the mixture containing 4 smashed is poured into the sewage to be treated, stirred for 10 hours, then the corn starch is poured into the sewage to be treated, stirred rapidly for 10 minutes, and then poured. Flocculant activated carbon, stirring for 10 minutes, finally adding edible salt, stirring for 5 minutes, sedimenting for 1 hour, adding pH adjuster, stirring for 5-10 minutes, adjusting the pH to 6.6-7.5, in the water that will adjust the pH value Precipitation and filtration.

Claims

A sewage treatment method characterized in that the implementation process is as follows: clay, fly ash and lime are preferably pulverized, and the pulverized mixture is poured into the sewage to be treated, stirred for 10 hours, and then the corn starch is poured into the mixture. In the treated sewage, stir for 10 minutes, then pour the flocculant activated carbon, stir for 10 minutes, finally add the edible salt, stir for 5 minutes, settle for 1 hour, add the pH adjuster, stir for 5-10 minutes, adjust the pH. For 6.6-7.5, the pH-adjusted water is precipitated and filtered, and the vinegar is added to the filtered water.
A sewage treatment method according to claim 1, wherein the ratio of the amount of the clay, fly ash and lime to the weight of the sewage is 7: 10,000.
The sewage treatment method according to claim 1, wherein the weight ratio of the clay to the fly ash is 1:1, and the weight ratio of lime to clay is 1:6.
A sewage treatment method according to claim 1, wherein a weight ratio of said clay to corn starch is 4:1; a treatment according to claim 1, characterized in that said clay The weight ratio to activated carbon is 20:1.
The method according to claim 1, wherein the weight ratio of the clay to the edible salt is 100:1.
The method according to claim 1, wherein the weight ratio of the edible vinegar to the filtered water is 1:20000.