Secondary sedimentation tank system capable of improving organic wastewater effluent quality and processing method

A technology of secondary sedimentation tank and effluent quality, applied in sedimentation tank, feeding/discharging device of sedimentation tank, etc., can solve the problems of water turbidity, affecting effluent quality, unfavorable separation of water and floating mud, etc., to improve interception effect, the effect of improving water quality

Active Publication Date: 2015-12-02
GUANGZHOU KINTE IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the sludge produced by biochemical treatment of organic wastewater is synthetic metabolites, and the density of the sludge deposited at the bottom of the sedimentation zone after coagulation is only slightly higher than that of water. The mud board expels these sludges, which are easy to float and cause water turbidity, which is not conducive to water purification
In addition, for the floating mud on the water surface, the conventional advection sedimentation tank mostly uses the scraper plate of the driving type mud scraper to drive the floating mud to the scum tank at the end of the tank along the flow direction of the water, which is not conducive to water and floating mud. separation, affecting the quality of the effluent

Method used

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  • Secondary sedimentation tank system capable of improving organic wastewater effluent quality and processing method
  • Secondary sedimentation tank system capable of improving organic wastewater effluent quality and processing method
  • Secondary sedimentation tank system capable of improving organic wastewater effluent quality and processing method

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Embodiment 1

[0040] Such as Figure 1-6 The shown secondary settling tank system that can improve the quality of the effluent is an embodiment of the present invention, including a coagulation tank, a secondary settling tank 20, an effluent collection tank 6 and a sludge thickening tank 8, and the four tanks can be independently set up. In order to save land, in this embodiment, the coagulation tank, the secondary sedimentation tank 20, the outlet water collection tank 6 and the sludge thickening tank 8 are arranged close to each other. Wherein, the coagulation tank, the secondary sedimentation tank 20 and the outlet water collection tank 6 are sequentially connected along the water flow direction. The coagulation tank and the secondary sedimentation tank 20 are connected by a rectifying wall 19 with holes, and the outlet water collection tank 6 is located at the tail of the secondary sedimentation tank 20 and is connected with the secondary sedimentation tank 20 through a partition wall ...

Embodiment 2

[0045] When the biochemically treated wastewater enters the reaction hopper 1 of the coagulation tank, the mixer 2 is started, and the coagulant dosing system adds an appropriate amount of coagulant at the same time, and the flocculant dosing system simultaneously adds an appropriate amount of flocculant. The waste water after the coagulation reaction in 1 overflows into the water distribution tank 13, then passes through the perforated rectifying wall 19 and enters the buffer zone of the secondary sedimentation tank 20, then reaches the sedimentation area for mud-water separation, and reaches the tail of the secondary sedimentation tank 20 Pass through the overflow weir hole 5 and the filter screen, and then overflow into the effluent sump 6.

[0046] After the mud-water separation in the sedimentation area, most of the sludge can settle to the mud collecting bucket 4 at the bottom of the tank, and some flocs become floating mud and float on the water surface. Carry out 1-2 t...

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Abstract

The invention discloses a secondary sedimentation tank system capable of improving organic wastewater effluent quality. The secondary sedimentation tank system comprises a coagulating tank, a secondary sedimentation tank and an effluent water collection tank which are sequentially connected in the water flowing direction. The secondary sedimentation tank system is characterized in that the secondary sedimentation tank is a horizontal sedimentation tank, the wall on the head of the secondary sedimentation tank is provided with a mud discharge groove with a water retaining dam in the width direction of the tank, the wall on the tail of the secondary sedimentation tank is provided with an effluent weir, the bottom of the secondary sedimentation tank is fully provided with a plurality of mud collection buckets which are arranged in rows in the width direction and length direction of the tank, each mud collection bucket is provided with an independent mud discharge pipe, a walking type mud scraper is arranged above the tank and used for scraping float mud on the water surface to the mud discharge groove so as to be away from the effluent weir, and therefore effluent quality is improved. The invention further discloses a method for processing organic wastewater through the secondary sedimentation tank system.

Description

technical field [0001] The invention relates to a secondary sedimentation tank system capable of improving the effluent quality of organic wastewater. The invention also relates to a treatment method capable of improving the effluent quality of organic wastewater. Background technique [0002] In the industrial wastewater containing organic matter, that is, the organic wastewater treatment process, especially the esterification wastewater treatment process, the organic wastewater is first biochemically treated and then coagulated and precipitated. However, esterification wastewater produces a lot of floating mud after biochemical treatment. After entering the coagulation reaction tank, it is difficult to remove it even if coagulants and flocculants are added, so there are often more floating mud in the pool water. Excessive floating mud will not be conducive to the coagulation reaction and affect the subsequent sedimentation effect. In order to improve the subsequent sedime...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D21/08B01D21/24
Inventor 廖亮张捷刘亮蓝裕进陆宏杰胡百九
Owner GUANGZHOU KINTE IND
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