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Coagulation, adsorption, dephenolization and precipitation device for removing non-biodegradable substances from coal chemical wastewater

A technology that is difficult to biodegrade and coal chemical wastewater, applied in the fields of flocculation/sedimentation water/sewage treatment, water pollutants, adsorbed water/sewage treatment, etc. cost, saving infrastructure costs, and the effect of COD removal

Inactive Publication Date: 2012-06-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that coal chemical wastewater still contains some toxic organic residues and suspended solids after aerobic treatment. Most of these polycyclic and heterocyclic compounds cannot be degraded by microorganisms, which increases the pollutant load for the subsequent advanced oxidation process. problem, and then provide a coagulation, adsorption, dephenolization and precipitation device for removing difficult-to-biodegradable substances in coal chemical wastewater

Method used

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  • Coagulation, adsorption, dephenolization and precipitation device for removing non-biodegradable substances from coal chemical wastewater
  • Coagulation, adsorption, dephenolization and precipitation device for removing non-biodegradable substances from coal chemical wastewater
  • Coagulation, adsorption, dephenolization and precipitation device for removing non-biodegradable substances from coal chemical wastewater

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specific Embodiment approach 1

[0017] Specific implementation mode one: combine Figure 1 to Figure 4 This embodiment is described. The coagulation, adsorption, dephenolization and precipitation device for removing difficult-to-biodegradable substances from coal chemical industry wastewater in this embodiment includes a first square wall 1, a second square wall 3, a third square wall 5, and a sludge pipeline room 7 , sludge storage tank 8, water inlet pipe 9, stirring head 10 of lifting mixer, flocculant pipeline 12, decolorizing agent pipeline 13, diversion cylinder 15, agitator center shaft 16 of lifting mixer, lifting motor 18, flow guide Platform 19, partition wall 20, mud scraper 25 of lifting mud scraper, mud bucket 27, sludge return pump 28, first sludge return pipe 29, second sludge return pipe 30, speed-adjustable paddle mixer The mixing head 40, the stirring rod 41 of the speed-adjustable blade mixer, the speed-regulating motor 42 of the speed-adjustable blade mixer, the transmission rod 43 and th...

specific Embodiment approach 2

[0024] Specific implementation mode two: combination figure 2 The present embodiment is described. The central shaft 16 of the agitator and the guide tube 15 of the lift mixer of the present embodiment are arranged coaxially, and the guide platform 19 corresponds to the guide tube 15 up and down. Such setting makes the turbulence under the hydraulic condition more conducive to the flocculation process. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Specific implementation mode three: combination figure 2 To describe this embodiment, the longitudinal section of the guide platform 19 of this embodiment is trapezoidal. With such setting, the diversion effect is good. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

[0026] Specific implementation mode four: combination figure 2 To describe this embodiment, the bottom corners of the third-shaped enclosure wall 5 of this embodiment are filled with concrete to form rounded corners. It is set so that the settled mud can slide down freely, and then scraped into the mud hopper by the mud scraper. Other compositions and connections are the same as those in Embodiment 1, 2 or 3.

[0027] Specific implementation mode five: combination figure 1 and figure 2 To illustrate this embodiment, the concentration of the flocculant added in this embodiment is 150 mg / L, and the dosage of the decolorizing agent is 2 mg / L. With this sett...

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Abstract

The invention discloses a coagulation, adsorption, dephenolization and precipitation device for removing non-biodegradable substances from coal chemical wastewater, which relates to a device for degrading toxic and harmful pollutants in coal chemical wastewater and is used for solving the problem that pollutant load in a subsequent high-grade oxidation process is increased since a part of toxic organic matter residues and suspended matters contained in aerobically-treated coal chemical wastewater are non-degradable. The device is partitioned into an adsorption region, a flocculation region, aradial flow precipitation region, a sludge pipeline room and a sludge storage region, wherein the adsorption region is provided with an adjustable-speed blade stirrer, and active carbon, diatomite, aflocculating agent and a decoloring agent are added; the flocculating region is provided with an elevating stirrer; and the radial flow precipitation region is provided with an elevating mud scraper.The device is used for removing non-biodegradable substances from coal chemical wastewater.

Description

technical field [0001] The invention relates to a device for degrading toxic and harmful pollutants in coal chemical wastewater, in particular to a coagulation, adsorption, dephenolization and precipitation device for removing difficult-to-biodegradable substances in coal chemical wastewater, and belongs to the technical field of sewage treatment. Background technique [0002] At present, the treatment process of coal chemical wastewater at home and abroad is mainly composed of physicochemical and biochemical processes. The coal chemical wastewater after pretreatment is generally further treated by anoxic and aerobic biological treatment process (A / O treatment process) at home and abroad, but the wastewater contains some polycyclic and heterocyclic compounds, and the effluent is still It is difficult to meet emission standards. In order to solve the above problems, some new methods have appeared in recent years, such as membrane biological treatment process, fluidized bed t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/28C02F101/34
Inventor 韩洪军赵茜徐春艳张凌翰周飞祥
Owner HARBIN INST OF TECH
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