High-intensity active carbon sedimentation basin and sedimentation process

A technology of activated carbon and sedimentation tank, used in sedimentation separation, sedimentation tank, water/sludge/sewage treatment, etc., can solve the problems of odor, limited removal of chromatic organic matter, low turbidity of effluent, and small footprint. , to achieve the effect of good effluent quality, strong removal capacity and small footprint

Active Publication Date: 2011-06-01
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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Problems solved by technology

ACTIFLO, DENSADEG and other processes have the advantages of low effluent turbidity and small footprint, but have limited removal capabilities for odor, chroma, and organic matter

Method used

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  • High-intensity active carbon sedimentation basin and sedimentation process
  • High-intensity active carbon sedimentation basin and sedimentation process
  • High-intensity active carbon sedimentation basin and sedimentation process

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0011] A high-density activated carbon sedimentation tank, including a water inlet pipe, is characterized in that the water inlet pipe 15 is connected to the mixing tank 1, the mixing tank 1 is connected to the first-level flocculation tank 2 arranged on both sides of the mixing tank, and the first-level flocculation tank 2 is connected to the second-level flocculation tank. The adsorption pool 3 is connected, the secondary flocculation adsorption pool 3 is connected with the sedimentation area 24 through the variable speed adsorption push flow area 4, and the connection between the variable speed adsorption push flow pool 4 and the sedimentation area 24 is provided with an inclined wall 23, and the bottom of the inclined wall 23 is connected to the bottom plate of the pool. There is a flow passage between them, and the variable speed adsorption push flo...

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Abstract

The invention discloses a high-intensity active carbon sedimentation basin. The sedimentation process thereof is characterized by comprising the following steps: reflowing the enriched sludge and the active carbon to a mixing basin by using the concentrating and separating effects of the sedimentation process and the active carbon on the turbidity materials, and obtaining the mixed liquid of which the concentrations of the sludge and the active carbon particles are high; and strengthening the removal of the turbidity materials and the organics in water by the capturing and adsorbing effects of the two carriers. According to the invention, the defect of the original conventional treating process that the utilization ratio of the added active carbon is low is overcome, and relatively stronger removal ability for stink smell, chroma and organics is provided for the conventional sedimentation process. The high-intensity active carbon sedimentation basin has the characteristics of good water quality, small drug consumption, high solid content of sludge, small occupation area, flexible operation control and strong adaptation ability on raw water quality. The sedimentation basin is developed based on the III-type raw water or raw water higher than III type, and has double functions of conventional treatment and deep treatment; and a completely new path to treat the serious raw water is provided. The sedimentation basin can be applied to the conventional treatment process or combined with the deep processing process when the quality of the raw water is poor.

Description

Technical field: [0001] The invention belongs to the technical fields of water treatment and environmental protection, and in particular relates to a high-density activated carbon sedimentation tank with recirculating activated carbon and sludge as circulation carriers and a sedimentation process thereof. Background technique: [0002] There are three main ways for particles to contact in water: (1) Brownian motion of particles; (2) flow of particle liquid; (3) difference in sinking velocity between particles. The classic flocculation theory holds that, in the case of ignoring the Brownian motion and the difference in particle sedimentation velocity during the flocculation stage, the number of particle collisions per unit time and the velocity gradient G is the 1st power, the particle size is the 3rd power and the particle size per unit volume is Proportional to the power of 2 of the number. In the 1990s, carrier flocculation technologies such as ACTIFLO and DENSADEG were d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D21/02B01D21/01C02F1/00C02F1/28
Inventor 沈裘昌郑国兴许龙周建平樊华青
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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