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Bamboo filament biological membrane seriously polluted riverway water restoring device and method

A technology for heavy pollution and biofilm, which is applied in the field of nitrogen pollutants, suspended bacteria and particulate matter, and in the field of purifying organic matter in heavily polluted water bodies. poor biocompatibility

Inactive Publication Date: 2014-07-02
XUZHOU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of using biofilm reactor technology to restore heavily polluted river water bodies, artificially synthesized organic polymer biological carriers are often used, such as YDT elastic three-dimensional Filler, TX type columnar suspension filler, but these fillers have the problems of poor hydrophilicity and bio-affinity, so the film-hanging time is longer, and the binding force between the biofilm and the carrier is also weak

Method used

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  • Bamboo filament biological membrane seriously polluted riverway water restoring device and method

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Effect test

Embodiment 1

[0027] like figure 1 Shown, a kind of repairing device of bamboo silk biofilm repairing heavily polluted river course water body comprises housing 4, and the upper dividing plate 11, the lower dividing plate 12 with mesh are installed respectively in the upper part and the lower part in the housing 4, upper dividing plate Both the plate 11 and the lower dividing plate 12 are stainless steel mesh plates, and they are mainly used for fixing bamboo wire fillers. The lower partition 12 divides the inner cavity of the housing 4 into two parts, the main reaction zone and the gas-water mixing zone 3, and the main reaction zone is installed with a guide tube 7, which divides the main reaction zone into an air-water upflow zone 5 and the inside and outside of the downflow area 6, the guide tube can be a cylinder or a square tube or a polygonal tube. The main reaction area is filled with bamboo silk filler, and a sedimentation area 10 is installed on the top of the shell 4, and a water...

Embodiment 2

[0034] The difference between the repair device of Example 2 and Example 1 is that the volume ratio of the air-water mixing zone, the main reaction zone and the precipitation zone is 1:4.5:2.

[0035] The bamboo silk filler in the repairing device of this embodiment is the bamboo silk filler that has been processed by the following method: the bamboo silk filler of moso bamboo is made into a cuboid shape, then soaked continuously for 7 days with 10% sodium hydroxide aqueous solution, and the hydrogen oxidizer is replaced every day. Sodium aqueous solution, after soaking, rinse with distilled water for 5 times; then dry it to remove the water-soluble substances in the bamboo fiber filler; finally spread the dried bamboo fiber filler in a single layer, under the ultraviolet light of 240-270nm wavelength, the distance Ultraviolet light was irradiated for 40min at 15cm to reduce the crystallinity in the bamboo silk filler. The specifications of the bamboo wire filler are: length 3...

Embodiment 3

[0039] The difference between the repair device of Example 3 and Example 1 is that the volume ratio of the air-water mixing zone, the main reaction zone and the precipitation zone is 1:3:1.8.

[0040] The bamboo silk filler in the repairing device of this embodiment is the bamboo silk filler that has been processed through the following method: Moso bamboo is made into a cuboid-shaped filamentous bamboo, then soaked continuously for 6 days with 7% sodium hydroxide aqueous solution, and the hydrogen oxidizer is replaced every day. Sodium aqueous solution, rinse with tap water four times after soaking; then dry in a blast drying oven with a temperature not exceeding 60°C to remove water-soluble substances in the bamboo silk filler; finally spread the dried bamboo silk filler in a single layer , under the ultraviolet light of 240-270nm wavelength, ultraviolet irradiation is carried out for 28min at a distance of 12cm from the ultraviolet lamp, so as to reduce the crystallinity in ...

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Abstract

The invention discloses a bamboo filament biological membrane seriously polluted riverway water restoring device and method and belongs to the field of polluted water ecological restoration. The bamboo filament biological membrane seriously polluted riverway water restoring device is sequentially provided with a gas-water mixing zone, a main reaction zone and a sedimentation zone in longitudinal direction from bottom to top, wherein volume ratio of the gas-water mixing zone to the main reaction zone and the sedimentation zone is 1:(2.5-4.5):(1.2-2). The bamboo filament biological membrane seriously polluted riverway water restoring method comprises that firstly the air and raw water are quickly mixed in the mixing zone; then a mixture of the air and raw water enters into the main reaction zone and internal circulation is formed, mineralizing and removal on refractory organics as well as nitrification and denitrification are realized in the main reaction zone; finally effluent of the main reaction zone is discharged outside after being sedimented in the sedimentation zone; residual sludge of the residual zone is periodically discharged from a sludge discharging hole. Removal rates of CODMn, CODcr, ammonia nitrogen, total nitrogen and turbidity can respectively reach 10.57-74.34%, 56.3-88.9%, 12.30-86.67%, 49.38-70.93% and 20.01-100%.

Description

technical field [0001] The invention belongs to equipment and methods for repairing heavily polluted water bodies, in particular to a device and method for purifying organic matter, nitrogen pollutants, suspended bacteria and particulate matter in heavily polluted water bodies. It is mainly used for rapid restoration and purification of pollutants in heavily polluted water bodies. technical background [0002] Due to the impact of the rapid development of industry and population explosion, some river water bodies are sewage storage places compared to other rivers, lakes and reservoirs, and the phenomenon of black and smelly is obvious. The characteristics are: black and smelly water, extremely dissolved oxygen Low pollution, relatively high concentration of pollutants, weak self-purification ability of water body, and extremely poor transparency have caused great impact and disadvantages on residents' production and life, social image and ecological environment. Current riv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/28
CPCY02A20/402
Inventor 曹文平
Owner XUZHOU UNIV OF TECH
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