Preparation method and equipment of novel bio-magnetic suspension filler for water treatment

A technology of suspended filler and water treatment, which is applied in special compound water treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. Production cost, effect of enhancing microbial activity

Active Publication Date: 2019-08-16
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the limitations of the material properties used to manufacture suspended fillers limit the application performance of suspended fillers in different wastewater treatment processes.

Method used

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  • Preparation method and equipment of novel bio-magnetic suspension filler for water treatment
  • Preparation method and equipment of novel bio-magnetic suspension filler for water treatment
  • Preparation method and equipment of novel bio-magnetic suspension filler for water treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: preparation novel water treatment biomagnetic suspension filler, comprises the following steps:

[0048] S1: Magnetic powder surface treatment: Soak the magnetic powder with 1mol / L alkaline potassium persulfate solution. The magnetic powder is RuFeB powder. Stir continuously during the soaking process. After soaking for 3 hours, take it out and dry to obtain modified magnetic powder. Put the modified magnetic powder in Stir in an agitator, dilute the titanate coupling agent with white mineral oil at a mass ratio of 1:1, atomize and spray the diluted titanate coupling agent into the agitator, and continue stirring for 20 minutes to obtain Activated magnetic powder;

[0049] S2: Modification of the carrier material: add the composite emulsifier and phenyltrichlorosilane in the mass ratio of 2:1 into the ultrasonic emulsification device for ultrasonic emulsification for 1 hour to obtain a silicone emulsion, and then mix the silicone emulsion and polyurethane by...

Embodiment 2

[0055] Embodiment 2: the preparation of novel biomagnetic suspension filler for water treatment comprises the following steps:

[0056] S1: Magnetic powder surface treatment: Soak the magnetic powder with 2mol / L alkaline potassium persulfate solution. The magnetic powder is RuFeB powder. Stir continuously during the soaking process. After soaking for 4 hours, take it out and dry to obtain the modified magnetic powder. Put the modified magnetic powder in Stir in an agitator, dilute the titanate coupling agent with white mineral oil at a mass ratio of 1:1, atomize and spray the diluted titanate coupling agent into the agitator, and continue stirring for 25 minutes to obtain Activated magnetic powder;

[0057] S2: Modification of the carrier material: add the composite emulsifier and phenyltrichlorosilane into the ultrasonic emulsification device at a mass ratio of 2.3:1 for ultrasonic emulsification for 1.5 hours to obtain a silicone emulsion, and then combine the silicone emuls...

Embodiment 3

[0063] Embodiment 3: the preparation of novel biomagnetic suspension filler for water treatment comprises the following steps:

[0064] S1: Surface treatment of magnetic powder: Soak the magnetic powder with 3mol / L alkaline potassium persulfate solution. The magnetic powder is RuFeB powder. Stir continuously during the soaking process. After soaking for 5 hours, take it out and dry to obtain the modified magnetic powder. Put the modified magnetic powder in Stir in an agitator, dilute the titanate coupling agent with white mineral oil at a mass ratio of 1:1, atomize and spray the diluted titanate coupling agent into the agitator, and continue stirring for 30 minutes to obtain Activated magnetic powder;

[0065] S2: Modification of the carrier material: add the composite emulsifier and phenyltrichlorosilane into the ultrasonic emulsification device at a mass ratio of 2.5:1 for ultrasonic emulsification for 2 hours to obtain a silicone emulsion, and then combine the silicone emul...

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Abstract

The invention discloses a preparation method of a novel bio-magnetic suspension filler for water treatment. According to the method, a magnetic powder is activated after alkali modification, then polyurethane is subjected to copolymerization modification with an organic silicone emulsion, a dispersing lubricant, a crosslinking agent and a pore-forming agent are added for high-speed kneading to obtain a mixed material, the mixed material is directly subjected to extrusion forming and cutting, the pore-forming agent is removed by vacuum drying to make the interior of the formed filler porous toobtain a suspension filler, the suspension filler is magnetized and then loaded with a surface-enhancing component to obtain the bio-magnetic suspension filler.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a preparation method and equipment for a novel biomagnetic suspension filler for water treatment. Background technique [0002] Biological filler is one of the cores of biofilm water treatment technology. The addition of suspended filler can enrich the composition of microbial populations in the reactor, improve the mass transfer efficiency between the gas-liquid-solid three-phase system, improve the nitrification performance of the reactor and The ability to degrade some refractory organic matter. However, the limitations of the material properties used to manufacture suspended fillers restrict the application performance of suspended fillers in different wastewater treatment processes. The modification of the suspended filler is to make the necessary modification to the material or the surface of the suspended filler to make it better meet the specific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/10C02F101/16
CPCC02F3/10C02F3/105C02F3/34C02F3/342C02F2101/16C02F2203/006C02F2203/008C02F2305/06Y02W10/10
Inventor 许柯朱远墨任洪强耿金菊
Owner NANJING UNIV
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