Method for improving treatment efficiency of sewage plant by utilizing bypass sludge activity enhancing technology

A technology for sewage plants and sludge, which is applied in the field of improving the treatment efficiency of sewage plants by using bypass sludge activation technology, which can solve the problems of inability to perform anoxic or anaerobic hydrolysis, inability to release SCOD, and ineffective utilization, etc., to achieve The effect of reducing output, improving removal capacity, and improving sludge stability

Active Publication Date: 2012-10-03
刘智晓
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing technologies include: "regenerated activated sludge" process or "adsorption-regeneration" process, but these two forms of regeneration tank are continuously aerated and completely aerobic, so there are some shortcomings. One is due to the complete aerobic state, Therefore, there is no anoxic environment for denitrification and denit...

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  • Method for improving treatment efficiency of sewage plant by utilizing bypass sludge activity enhancing technology
  • Method for improving treatment efficiency of sewage plant by utilizing bypass sludge activity enhancing technology
  • Method for improving treatment efficiency of sewage plant by utilizing bypass sludge activity enhancing technology

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Embodiment 1

[0033] Such as figure 1 As shown, a method for improving the treatment efficiency of a sewage plant by using the bypass sludge activation enhancement technology includes the following steps: after the primary pretreated sewage passes through the main biological pool 1 for secondary treatment (the sewage is in the main biological pool, passed through Aerobic, anoxic or anaerobic process, to achieve the removal of pollutants and the reduction of concentration) into the secondary settling tank 2, in which the mud and water are separated, the supernatant of the secondary settling tank is discharged, and the active sewage concentrated in the secondary settling tank The mud is transported to the bypass biological pool (hereinafter referred to as the SART pool) 3 through the sludge return pump 4 and the pipeline, and returns to the water inlet of the main biological pool after being treated in the SART pool through aerobic, anoxic, and anaerobic biochemical processes, resulting in Th...

Embodiment 2

[0041] Such as figure 1 As shown, a method for improving the treatment efficiency of a sewage plant by using the bypass sludge activation enhancement technology includes the following steps and processes: the sewage that has undergone primary pretreatment flows into the secondary sedimentation tank after secondary treatment in the main biological tank, and then flows into the secondary sedimentation tank in the secondary sedimentation tank. The sludge and water are separated in the tank, and the supernatant of the secondary sedimentation tank enters the subsequent advanced treatment. The concentrated activated sludge in the secondary sedimentation tank is transported to the SART tank through the sludge return pump and pipeline, and undergoes aerobic, anoxic and anaerobic biochemical processes in the SART tank. After the process is treated, it is returned to the water inlet of the main biological pool, and the excess sludge generated is processed through the sludge treatment pro...

Embodiment 3

[0048] Such as figure 1 As shown, a method for improving the treatment efficiency of a sewage plant using the bypass sludge activation enhancement technology includes the following steps: the sewage that has undergone primary pretreatment flows into the secondary sedimentation tank after secondary treatment in the main biological tank, and in the secondary sedimentation tank Separation of mud and water, discharge of the supernatant from the secondary settling tank, and the concentrated activated sludge from the secondary settling tank is transported to the SART tank through the sludge return pump and pipeline, and then returned to the SART tank after being treated by aerobic, anoxic and anaerobic biochemical processes. At the water inlet of the main biological pool, the excess sludge generated is processed through the sludge treatment process unit. The main design parameters of each treatment unit or structure are as follows:

[0049] The proportion of SART pool volume to the...

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Abstract

The invention discloses a method for improving treatment efficiency of a sewage plant by utilizing a bypass sludge activity enhancing technology. The method comprises the following steps of: enabling sewage after primary pretreatment to pass through a main biological tank for secondary treatment and then flow into a secondary sedimentation tank, performing sludge-water separation in the secondary sedimentation tank, discharging supernatant fluid of the secondary sedimentation tank or enabling the supernatant fluid to be subjected to follow-up advanced treatment, conveying activated sludge concentrated by the secondary sedimentation tank to a bypass biological tank through a sludge reflux pump and a pipeline, and enabling the activated sludge to reflux to the water inlet end of the main biological tank after aerobic, anoxic and anaerobic biochemical process treatment in the bypass biological tank. According to the method disclosed by the invention, the total amount of the activated sludge in the sewage plant can be greatly improved by simply transforming (combined building) the existing biological tank or only newly building a small-volume bypass biological tank (separate building), and the total retention quantity of MLSS (mixed liquor suspended solids) of the biological system disclosed by the invention can be improved by 18%-100% in comparison with the process in the prior art. The method disclosed by the invention is suitable for not only new building of sewage plants, but also upgrade and standard-raising transformation of the existing sewage plants; and the method disclosed by the invention has the advantages of high efficiency, low consumption and low investment.

Description

technical field [0001] The invention relates to a sewage treatment method, in particular to a method for improving the treatment efficiency of a sewage plant by using bypass sludge activation enhancement technology. Background technique [0002] At present, China's water environment problems are becoming more and more prominent, and the pressure of energy conservation and emission reduction is increasing. In addition to large-scale construction of sewage treatment systems, sewage treatment plants that have been built or are in operation are also facing increasingly stringent water quality requirements. It will become the theme of sewage plant construction and renovation for a long period of time in the future. However, the main problems faced by China's sewage plants at present are mainly problems such as insufficient carbon sources in influent water, poor nitrogen and phosphorus removal effects, and limited expansion sites for sewage plants. At the same time, due to the im...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/12
CPCY02W10/10
Inventor 刘智晓
Owner 刘智晓
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