Sewage treatment material and preparation method thereof

A sewage treatment and pretreatment technology, applied in the direction of water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of ineffective application of sewage treatment, complex preparation process, and poor sewage treatment effect Good and other questions

Inactive Publication Date: 2016-12-14
GUILIN XINYI REFRIGERATION EQUIP
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Problems solved by technology

[0003] The patent with the publication number of 104722272A discloses a new type of adsorption material for wastewater treatment and its preparation process. The invention includes three parts: organic modification of bentonite, immobilization of bentonite and continuous treatment of industrial wastewater containing phenol. Excessive ion concentration will compress the electric double layer of bentonite particles, inhibit the dispersion and diffusion of bentonite, and even cause aggregation and coalescence of bentonite, so it cannot be effectively applied to sewage treatment, with poor results and high costs
[0004] Publication No. 103601433A discloses a method for preparing high-efficiency phosphorus removal materials for sewage treatment. The preparation of the inventive materials includes the following steps (1) drying clay, ordinary cement, slaked lime and oil shale slag at 105 ° C for 12- 24 hours; (2) 120-180 grams of clay, 40-60 grams of ordinary cement, 80-120 grams of slaked lime and 80-120 grams of oil shale after drying in step (1), add water 190-280ml, and use an aeration device Introduce 0.2L / min air and stir thoroughly for 10-25 minutes to obtain the mixture; (3) put it into a granulator to make particles with a particle size of 3.5-4.5mm; (4) dry at 105°C for 12-24 hours, that is Obtain high-efficiency phosphorus removal materials for sewage treatment. This invention has poor adsorption to heavy metal ions and poor sewage treatment effect, and the preparation process is complicated.

Method used

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  • Sewage treatment material and preparation method thereof

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Effect test

Embodiment 1

[0022] A. In parts by weight, 10 parts of bamboo charcoal are added to a water bath and boiled for 5 minutes to remove dust and surface residues, then the bamboo charcoal is added to the reactor and activated for 10 minutes at 400 ° C under steam conditions, and finally cooled for 10 minutes to obtain pretreatment bamboo charcoal;

[0023] B, in parts by weight, the pretreated bamboo charcoal obtained in the step (A) is mixed with 1 part of hydrotalcite and 1 part of diatomaceous earth, and added to a grinder and ground to 100 orders to obtain mixture A;

[0024] C, in parts by weight, 5 parts of mixture A obtained in step (B) and porous starch, 1 part of carboxymethyl cellulose, 10 parts of polyvinyl alcohol, 1 part of amino resin and solvent are added in a high-speed mixer and mixed uniformly, the temperature Control at 50°C to obtain mixture B;

[0025] D. In parts by weight, add the mixture B obtained in step (C) into the screw extruder, the screw extruder speed is contro...

Embodiment 2

[0027] A. In parts by weight, 15 parts of bamboo charcoal are added to a water bath and boiled for 8 minutes to remove dust and surface residues, then the bamboo charcoal is added to the reactor and activated for 20 minutes at 500 ° C under steam conditions, and finally cooled for 15 minutes to obtain pretreatment bamboo charcoal;

[0028] B, in parts by weight, mix the pretreated bamboo charcoal obtained in the step (A) with 3 parts of hydrotalcite and 3 parts of diatomaceous earth, add in the grinder and grind to 300 mesh, obtain mixture A;

[0029] C, in parts by weight, 8 parts of mixture A obtained by step (B) and porous starch, 4 parts of carboxymethyl cellulose, 15 parts of polyvinyl alcohol, 3 parts of amino resin and solvent are added in high-speed mixer and mixed uniformly, temperature Control at 80°C to obtain mixture B;

[0030] D, in parts by weight, add the mixture B obtained in step (C) into the screw extruder, the screw extruder speed is controlled at 400r / min...

Embodiment 3

[0032] A. In parts by weight, 20 parts of bamboo charcoal are added to a water bath and boiled for 10 minutes to remove dust and surface residues, then the bamboo charcoal is added to the reactor and activated for 30 minutes at 600 ° C under steam conditions, and finally cooled for 20 minutes to obtain pretreatment bamboo charcoal;

[0033] B, in parts by weight, the pretreated bamboo charcoal obtained in the step (A) is mixed with 5 parts of hydrotalcite and 5 parts of diatomaceous earth, and added to a grinder and ground to 500 mesh to obtain mixture A;

[0034] C, in parts by weight, 10 parts of mixture A obtained by step (B) and porous starch, 5 parts of carboxymethyl cellulose, 20 parts of polyvinyl alcohol, 5 parts of amino resin and solvent are added in high-speed mixer and mix uniformly, temperature Control at 100°C to obtain mixture B;

[0035] D. In parts by weight, add the mixture B obtained in step (C) into the screw extruder, the screw extruder speed is controlle...

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Abstract

The invention provides a sewage treatment material which comprises 10-20 parts of bamboo charcoal, 5-10 parts of porous starch, 1-5 parts of carboxymethylcellulose, 10-20 parts of polyvinyl alcohol, 1-5 parts of hydrotalcite, 1-5 parts of amino resin and 1-5 parts of kieselguhr. Compared with the prior art, a preparation method of the material is simple in process; the obtained sewage treatment material is free from environmental pollution, can be effectively applied to sewage treatment for public places such as ponds and swimming pools, has the characteristics of high adsorption capacity, high selectivity and low cost, and has market application prospect.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a sewage treatment material and a preparation method thereof. Background technique [0002] At present, the total annual water consumption in my country has exceeded 600 billion cubic meters, and the per capita water resources are only 2,100 cubic meters, which is only 28% of the world's average level. The national average annual water shortage is more than 50 billion cubic meters, and two-thirds of the cities are short of water. There are 9 provinces and cities in the north with less than 500 cubic meters of water per capita, which is far below the minimum international standard (1,000 cubic meters). , is listed as one of the world's water-poor countries. With the rapid development of social economy, the amount of sewage in my country has reached 82 billion tons at present, with an annual increase of 2 billion tons, and the daily sewage discharge has reached 200 million tons. H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28
CPCB01J20/26B01J20/02B01J20/14B01J20/20B01J20/24B01J20/261B01J2220/46B01J2220/4806B01J2220/4812B01J2220/4825C02F1/288C02F2101/20
Inventor 陆应生苏情王君
Owner GUILIN XINYI REFRIGERATION EQUIP
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