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Sewage purification agent as well as preparation method and application thereof

A sewage purifying agent and sewage technology, applied in chemical instruments and methods, separation methods, water treatment parameter control, etc., can solve the problems of secondary pollution of groundwater, pollution of the surrounding environment, complicated processes, etc., to solve the burden of land occupation and purification. Great effect, wide range of effects

Inactive Publication Date: 2017-06-27
李文贵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More than 95% of cities and enterprises in my country still use the traditional activated sludge method to treat sewage, which has the disadvantages of complex process, large investment, high energy consumption, cumbersome operation and management, and poor treatment effect. At the same time, a large amount of activated sludge will be produced. Sludge contains a large amount of heavy metals, highly carcinogenic, highly pathogenic bacteria and organic pollutants, releasing foul smell and polluting the surrounding environment
Many units and areas use landfill to dispose of these sludges, which requires a large amount of land and is likely to cause secondary pollution of groundwater

Method used

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  • Sewage purification agent as well as preparation method and application thereof
  • Sewage purification agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation of additive A: Take 60 parts by weight of polyvinyl alcohol with a mass concentration of 12%, and 40 parts by weight of 5% carboxymethylcellulose (CMC) aqueous solution, and stir evenly.

[0038] Preparation of additive B: Weigh 70 parts by weight of coal (the G value of coal is 98, the Y value is 23, and the maximum Gibbs fluidity is 4300), weigh 30 parts by weight of attapulgite and mix them evenly, and add them into the pulverizer to make powder. After testing, the fineness of the powder is 325 mesh and the passing rate is 81.5%.

[0039] Raw material ratio is selected: 65 parts by weight of activated sludge residue, 15 parts by weight of additive A, and 20 parts by weight of additive B. The three raw materials weighed are added in the mixer, stirred for 10 minutes, and then moved into an extrusion molding machine. Under a pressure of 260kg / cm2, the material passes through a die hole with a diameter of 1.8mm to obtain a cylindrical granular material. Put...

Embodiment 2

[0041] Preparation of additive A: Take 70 parts by weight of 8% polyvinyl alcohol and 30 parts by weight of carboxymethyl cellulose (CMC) aqueous solution with a mass concentration of 10%, and stir evenly.

[0042] Preparation of additive B: Weigh 80 parts by weight of coal (the G value of coal is 98, the Y value is 23, and the maximum Gibbs fluidity is 4300), weigh 20 parts by weight of attapulgite and mix them evenly, and add them into the pulverizer to make powder. After testing, the fineness of the powder is 325 mesh and the passing rate is 83%.

[0043]Raw material ratio in this embodiment: 80 parts by weight of activated sludge residue, 10 parts by weight of additive A, and 10 parts by weight of additive B. Put the three raw materials weighed into the mixer, stir for 10 minutes, and then move into the molding machine. Under the pressure of 160kg / cm2, the materials pass through the die holes with a diameter of 5mm to obtain cylindrical granular materials. Put this granul...

Embodiment 3

[0045] Preparation of additive A: Take 80 parts by weight of 3% polyvinyl alcohol and 20 parts by weight of carboxymethyl cellulose (CMC) aqueous solution with a mass concentration of 15%, and stir evenly.

[0046] Preparation of additive B: Weigh 95 parts by weight of coal (the G value of coal is 98, the Y value is 23, and the maximum Gibbs fluidity is 4300), weigh 5 parts by weight of attapulgite and mix them evenly, and add them into the pulverizing machine to make powder. After testing, the fineness of the powder is 325 mesh and the passing rate is 82.6%.

[0047] Raw material ratio in this embodiment: 90 parts by weight of activated sludge residue, 5 parts by weight of additive A, and 5 parts by weight of additive B. Put the three raw materials weighed into the mixer, stir for 10 minutes, and then move into the molding machine. Under the pressure of 90kg / square centimeter, the materials pass through the die holes with a diameter of 10mm to obtain cylindrical granular mate...

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Abstract

The invention discloses a sewage purification agent as well as a preparation method and application thereof. The sewage purification agent comprises the following components in parts by weight: 60-80 parts of sewage, 65-90 parts of activated sludge residue and 10-35 parts of additives, wherein the sewage is a biologically cultured sewage; the obtained sewage purification agent has an appearance of cylindrical small particles with the diameter of 1-10 mm, and contains a large number of beneficial microorganisms internally. The preparation method comprises the following steps; firstly, culturing beneficial biological bacteria; then, scientifically the activated sludge of a sewage plant with a small number of additives; performing mixing forming and rotary furnace heat treatment to form a high-pore-volume absorbent having a pore volume of 200-900 cm<2> / g and particularly developed large and medium pores; and finally, culturing the pre-cultured beneficial biological bacteria in pores of the adsorbent. The obtained sewage purification agent not only has a biochemical function of the activated sludge, but also has a strong adsorption function and a strong filtration function, and can be directly used for the purification of sewage, and realize integration of filtration, adsorption and biological treatment.

Description

technical field [0001] The invention relates to a sewage purifying agent and its preparation method and application, belonging to the technical field of environmental protection of industrial organic sewage and urban sewage purification. Background technique [0002] At present, with the vigorous development of industry, the rapid expansion of cities, and the acceleration of rural urbanization, the purification technology of industrial organic sewage and urban sewage is particularly important. More than 95% of cities and enterprises in my country still use the traditional activated sludge method to treat sewage, which has the disadvantages of complex process, large investment, high energy consumption, cumbersome operation and management, and poor treatment effect. At the same time, a large amount of activated sludge will be produced. Sludge contains a large amount of heavy metals, highly carcinogenic, highly pathogenic bacteria and organic pollutants, releasing foul smell and...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/32C02F3/12B01D53/74C02F101/16C02F101/20C02F101/30
CPCC02F3/12C02F3/327C02F3/34C02F3/348C02F2101/16C02F2101/166C02F2101/20C02F2101/30C02F2209/08Y02W10/10
Inventor 李文贵
Owner 李文贵
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