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Biological purification carrier for wastewater treatment

A technology for biological purification and wastewater treatment, applied in biological water/sewage treatment, water/sludge/sewage treatment, by-product vaporization, etc. problems, to achieve the effect of easy-to-master process, rich sources and good elasticity

Active Publication Date: 2015-11-11
山东省神农生态科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the attapulgite composite hydrogel has low efficiency and small adsorption capacity for heavy metal ions, and it is difficult to clean the gel after absorbing heavy metal ions, and the gel is not sensitive to the pH value of the solution, so it is impossible to control the pH value of the solution. to control the adsorption of heavy metal ions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The object of the present invention is to provide a biological purification carrier for wastewater treatment. The technical scheme is as follows:

[0032] The preparation method of the biological purification carrier for wastewater treatment is as follows:

[0033] Mix the pretreated attapulgite and MBAA in brine, and stir at 60°C for 2 hours; mix the biopolymer solution with the above mixed solution, heat the above solution to 50°C, and add activated sludge with 4% mass of attapulgite and 2% nano-iron-manganese composite oxide, adding attapulgite mass 4% carbon nanotubes and stirring for 2 hours, the stirring speed is 8 revolutions / min. Then add the cyclodextrin complex solution to the above mixed solution, stir at 25°C for 30 minutes, then place it at 10°C for 30 minutes, adjust the temperature to -7°C and keep it for 50 minutes for slow stirring, solidification and crosslinking, and wrap the above mixture with gauze Squeeze to remove water. Rinse 3 times with 15% ...

Embodiment 2

[0046] The object of the present invention is to provide a biological purification carrier for wastewater treatment. The technical scheme is as follows:

[0047] The preparation method of the biological purification carrier for wastewater treatment is as follows:

[0048] Mix the pretreated attapulgite and MBAA in brine, and stir at 50°C for 3 hours; mix the biopolymer solution with the above mixed solution, heat the above solution to 40°C, and add activated sludge with 5% mass of attapulgite and 1% nano-iron-manganese composite oxide, adding 5% carbon nanotubes of attapulgite mass and stirring for 1 hour, the stirring speed is 5 rpm. Then add the cyclodextrin complex solution to the above mixed solution, stir at 20°C for 40 minutes, place it at 10°C for 30 minutes, adjust the temperature to -5°C and keep it for 60 minutes for slow stirring, curing and crosslinking, and wrap the above mixture with gauze Squeeze to remove water. Rinse twice with 10% tannic acid solution; pla...

Embodiment 3

[0061] The object of the present invention is to provide a biological purification carrier for wastewater treatment. The technical scheme is as follows:

[0062] The preparation method of the biological purification carrier for wastewater treatment is as follows:

[0063] Mix the pretreated attapulgite and MBAA in brine, and stir at 50°C for 1 hour; mix the biopolymer solution with the above mixed solution, heat the above solution to 40°C, and add activated sludge with 2% mass of attapulgite and 1% nano-iron-manganese composite oxide, adding attapulgite mass 2-5% carbon nanotubes and stirring for 1 hour, the stirring speed is 5 revolutions / min. Then add the cyclodextrin complex solution to the above mixture, stir at 20°C for 20 minutes, place it at 10°C for 30 minutes, adjust the temperature to -7°C and keep it for 60 minutes for slow stirring, curing and crosslinking, wrap the above mixture with gauze Squeeze to remove water. Rinse twice with 10% tannic acid solution; plac...

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Abstract

The invention provides a biological purification carrier for wastewater treatment. A method for preparing the biological purification carrier comprises the following steps: mixing pretreated attapulgite with MBAA in salt water; mixing a biomacromolecule solution with the obtained mixed solution; heating to 40-60 DEG C; adding activated sludge and nanometer iron-manganese composite oxide, wherein the adding amounts of the activated sludge and the iron-manganese composite oxide are respectively 2-5% and 1-3% of the mass of attapulgite; adding carbon nano tube and stirring for 1-3 hours, wherein the adding amount of the carbon nano tube is 2-5% of the mass of attapulgite; adding a cyclodextrin composite solution to the obtained mixed solution, adjusting the temperature to be -5-7 DEG C, keeping the temperature for 40-60 minutes, and stirring slowly for curing crosslinking; wrapping the mixture with gauze, compressing to remove water, and washing the mixture with the 10-20% tannic acid solution; placing the mixture into a drying oven with the temperature of 50-70 DEG C for 8-10 hours. The biological purification carrier can efficiently remove pollutants in wastewater through adsorption, and is high in stability, good in elasticity effect, high in wear resistance, simple in production process, and easy to manufacture and master.

Description

technical field [0001] The invention belongs to the field of wastewater treatment. Background technique [0002] With the rapid development of modern industry and urbanization, water pollution is becoming more and more serious. Wastewater treatment methods mainly include chemical precipitation method, electrolysis method, ion exchange method, membrane treatment method, etc., but these methods have defects such as complex process, cumbersome operation, high operating cost, and secondary pollution. One of the keys to solving water pollution problems is to develop and use new high-efficiency, low-toxicity, and cheap water treatment technologies. [0003] Attapulgite (also known as palygorskite) is a natural non-metallic mineral material. It is a kind of hydrous magnesium-rich silicate clay mineral with a chain layer structure. The typical chemical formula is Si 8 Mg 6 o 20 (OH) 2 (OH 2 ) 4 4H 2 O, the structure is a 2:1 type clay mineral, in each 2:1 unit structure laye...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/00B01J20/24
CPCB01J20/06B01J20/12B01J20/24C02F3/00C02F3/34Y02W10/40
Inventor 邵素英
Owner 山东省神农生态科技股份有限公司
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