Floccule self-filtering device and using method thereof

A self-filtration, flocculent technology, applied in the direction of filtration and separation, separation methods, chemical instruments and methods, etc., to achieve the effects of large processing capacity, long service life, and strong cleaning and recovery ability.

Inactive Publication Date: 2013-03-06
BEIJING ORIGIN WATER FILM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in combination with submerged ultrafiltration process instead of traditional MBR

Method used

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  • Floccule self-filtering device and using method thereof
  • Floccule self-filtering device and using method thereof
  • Floccule self-filtering device and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific example 1

[0047] Adopt the PVC pipe network that length is 3m, inner diameter is 2mm as the supporting structure 4 of self-filtering device, its outer layer wraps aperture and is the non-woven fabric porous filter material layer 5 of 0.8mm, the thickness of non-woven fabric porous filter material layer 5 0.1mm, as a self-filtering unit of the self-filtering device, such 6 self-filtering units are connected in parallel to form a complete self-filtering device, put into the aerobic tank 17, the concentration of the aerobic tank is 1.2g / L, and the aeration Strength is 10m 3 / m 2 *L, through the switch of the pipeline valve, enter the filtered water stage of the self-filtering device, the filtered water flows out from the siphon outlet pipe 3, and set the water output of the self-filtering device at the initial stage to 300L / m by controlling the valve 18 2 *h, after 0.5 min of water outflow, take water samples and observe the water quality of the outflow water, as shown in Table 1. When t...

specific example 2

[0053] According to attached figure 1 The described self-filtering unit is placed in the aerobic pool 17 after being connected in parallel, and the untreated sewage enters the aerobic pool 17 from the feed water 1 .

[0054] use The ABS network tube is used as the support structure 4 of the self-filtering unit, and its outer layer is wrapped with a non-woven porous filter material layer 5 made of polypropylene cloth with a pore size of 1 μm. The thickness of the porous filter material layer 5 is 2mm, so six 3m-long The self-filtering units are connected in parallel as a self-filtering device, put into the aerobic tank 17, the concentration of the aerobic tank is 1.0g / L, and the aeration intensity is 50m 3 / m 2 *h, through the switch of the pipeline valve, enter the filtered water stage of the self-filtering device, the filtered water flows out from the siphon outlet pipe 3, and set the water output of the self-filtering device at the initial stage to 500L / m by controlling t...

specific example 3

[0059] According to attached figure 2 The described process example of the combined use of the self-filtering device and the fine-pored membrane, the fine-pored membrane in this embodiment specifically adopts the submerged ultrafiltration membrane.

[0060] Stainless steel rods are used as the support structure 4 of the self-filtering device, and a cuboid support structure unit of 500 mm × 10 mm × 2000 mm is made, and its outer layer is wrapped with a pore diameter of 100 μm and a thickness of 0.2 mm. Blended yarn fiber cloth is used as a porous filter material layer 5, Such 6 self-filtering device units are used as a self-filtering device and put into the aerobic pool 17, the concentration of the aerobic pool is 1.0g / L, and the aeration intensity is 20m 3 / m 2 *h, through the switch of the pipeline valve, enter the filtered water stage of the self-filtering device, the filtered water flows out from the siphon outlet pipe 3, and set the water output of the self-filtering dev...

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Abstract

The invention discloses a floccule self-filtering device which comprises a plurality of self-filtering units connected in parallel. Each self-filtering unit comprises a supporting structure; the outer surface of each supporting structure is coated with a porous filtering material layer; a floccule layer is arranged outside each porous filtering material layer; a water pipe is arranged in each supporting structure and is connected to an external siphon water outlet pipe; and the floccule layers are formed by floccule interception sludge of the porous filtering material layers. Effluent generated by the self-filtering device disclosed by the invention enters a subsequent fine pore film filtering system by a siphonic manner, so that the high-efficiency operation of the subsequent system is ensured. The cheap and simple self-filtering device carries out pretreatment of sludge and water separation, so that the effluent has an excellent water quality and the total operation cost of the integral process is reduced. Particularly, the self-filtering device disclosed by the invention is combined with an immersion-type ultrafiltration system, replaces a conventional MBR (Membrane Biological Reactor) and is used for deeply treating sewage and wastewater; the treatment cost of per ton of water only occupies 20 to 30 percent of that of a conventional MBR process; and the water quality of the effluent is superior to that of effluent generated by the conventional MBR.

Description

technical field [0001] The invention relates to the technical field of water body purification and sewage and wastewater treatment, in particular to a zero-pollution and zero-energy floc self-filtering device and a method for using the same. Background technique [0002] The background technology is based on MBR technology and dynamic membrane technology. MBR technology is a process that combines activated sludge water treatment technology with membrane separation technology. It is considered to be the most promising sewage treatment and reuse technology in the 21st century. However, there are large investment and operating costs in the promotion and application of MBR technology. Membrane fouling is serious, cleaning recovery is not high, and these problems force water treatment work to research and invent new water treatment processes to replace them. In the MBR process, the main function of the membrane is to filter, that is, to separate the sludge and water from the slu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/15B01D29/92C02F3/10
CPCY02W10/10
Inventor 陈亦力文剑平李天玉李锁定郭莎莎
Owner BEIJING ORIGIN WATER FILM TECH
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