Air-floating pretreatment method and device for high-concentration organic sewage

A pretreatment device, organic sewage technology, applied in the field of sewage treatment equipment, air flotation water treatment, can solve the problems of large bubble size, small specific surface area, fast rising speed, etc., to save cost and operating cost, shorten Response time, simple and compact structure

Inactive Publication Date: 2007-04-25
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its advantages are: simple equipment and easy operation; but its disadvantages are: large bubble size (diameter > 1 mm), fast rising speed, small specific surface area, and short contact time with pollutants
Its advantages are: low air dissolution pressure, saving power consumption and power equipment; disadvantages are: all equipment is in the sealed air flotation pool, which makes the structure of the ai

Method used

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  • Air-floating pretreatment method and device for high-concentration organic sewage
  • Air-floating pretreatment method and device for high-concentration organic sewage
  • Air-floating pretreatment method and device for high-concentration organic sewage

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Embodiment 1

[0024] Embodiment 1: Referring to accompanying drawings 1 to 3, an air flotation pretreatment device for high-concentration organic sewage includes a reaction tank body 10 with an opening at the top of the tank body, and its interior is separated by a partition at the bottom of the tank. The plate 13 is divided into a reaction zone and a separation zone. The top of the pool wall on the side of the reaction zone is provided with a slag discharge pipe 6, and the bottom is respectively provided with a water inlet pipe 11 and a vent pipe 9. The reaction zone is provided with a guide tube 4. The diversion cylinder is erected on the sludge bed at the bottom of the pool through 3 buttresses 8, a steel pedal 2 is erected on the top of the pool body above the diversion cylinder, and the agitator 1 is fixed to the steel pedal through the I-shaped steel bracket 3. The stirring paddle 7 extends into the guide tube 4, the top of the pool wall on the side of the separation zone is provided w...

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PUM

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Abstract

The invention discloses an air-float predisposing method of organic effluent, which comprises the following steps: blending organic effluent and sludge with high-activity anaerobe; decomposing organics in the effluent under 15-60 deg.c through microbe; generating bubble; making non-decomposed particle impurity attached by bubble float on the water level; forming scum; remaining effluent for 1-2h to drain. the device contains a reacting pond bulk with reacting area and separating area separated by baffle on the pond bottom, wherein the pond wall top on the reacting area side possesses draining pipe with inlet pipe and blow-down pipe on the bottom; the diversion cylinder is set in the reacting area with stirrer on the diversion cylinder; the outlet pipe is set on the top of pond wall on the separating area side; the notch is opened on the top of baffle with reflux hole near the bottom.

Description

technical field [0001] The invention relates to a method and equipment for sewage treatment, in particular to an air flotation water treatment method for organic sewage and a device for completing sewage treatment using the method. Background technique [0002] The treatment methods for organic sewage usually include basic methods such as physical separation, physical chemistry and biological treatment. Among them, physical separation mainly includes sedimentation, air flotation, ultrasonic, microwave, filtration and other processes; physical chemistry mainly includes mixing coagulation precipitation, electrolytic air flotation, chemical dosing, photocatalytic oxidation and other processes; biological treatment mainly includes aerobic treatment and anaerobic treatment. Generally speaking, the physical separation method has the problem of low effluent quality, and it is not easy to meet the requirements of sewage discharge, while the chemical dosing, photocatalytic oxidation ...

Claims

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Application Information

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IPC IPC(8): C02F3/28C02F1/24
Inventor 黄天寅黄勇吕锡武
Owner SUZHOU UNIV OF SCI & TECH
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