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A total submerged sewage treatment method for simultaneous denitrification and phosphorus removal

A sewage treatment method and technology for denitrification and phosphorus removal, which are applied in water/sewage multi-stage treatment, neutralized water/sewage treatment, adsorbed water/sewage treatment, etc., can solve the problems of high cost and low nitrogen and phosphorus removal efficiency, etc. To achieve the effect of improving processing efficiency

Active Publication Date: 2020-06-16
江苏中百洲环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low nitrogen and phosphorus removal efficiency and high cost in sewage in the prior art, the present invention provides a fully submerged sewage treatment method for simultaneous denitrification and phosphorus removal

Method used

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  • A total submerged sewage treatment method for simultaneous denitrification and phosphorus removal
  • A total submerged sewage treatment method for simultaneous denitrification and phosphorus removal
  • A total submerged sewage treatment method for simultaneous denitrification and phosphorus removal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Example 1 Fully submerged multi-stage box-type nitrogen and phosphorus removal bioreactor

[0100] Such as figure 1 As shown, the fully submerged multi-stage box-type nitrogen and phosphorus removal bioreactor includes an upflow aerobic reactor A, an upflow anoxic reactor B and a sedimentation water outlet C connected in sequence, with a total effective volume of 150L.

[0101] Wherein, the shells of the upflow aerobic reactor and the upflow anoxic reactor are rectangular parallelepiped + inverted cone, the shell of the sedimentation outlet is rectangular parallelepiped, and the bottom of the inverted cone is respectively connected with sludge output pipe j.

[0102] The top of the upflow aerobic reactor A is provided with a water outlet a, a sampling port b, and a probe extension port c; the bottom is provided with a stirring device 11 and a first return port d, and the rotating shaft of the stirring device is inserted in the bushing , a paddle is connected to the bot...

Embodiment 2

[0109] 1. Pre-start

[0110] (1) The upflow aerobic reactor A, the upflow anoxic reactor B and the sedimentation outlet C connected in sequence, with a total effective volume of 150L. Among them, the shells of the upflow aerobic reactor and the upflow anoxic reactor are rectangular parallelepiped + inverted cone, and the shell of the sedimentation water outlet is rectangular parallelepiped.

[0111] The top of the upflow aerobic reactor A is provided with a water outlet a, a sampling port b, and a probe extension port c; the bottom is provided with a stirring device 11 and a first return port d, and the rotating shaft of the stirring device is inserted in the shaft sleeve. A paddle is connected to the bottom of the rotating shaft, and the paddle is a hollow trapezoid.

[0112] The top of the upflow anoxic reactor B is provided with a sampling port b, a probe extension port c and a first overflow port e, and a water distributor 10 is provided below the first overflow port e; t...

Embodiment 3

[0128] 1. Pre-start

[0129] (1) The upflow aerobic reactor A, the upflow anoxic reactor B and the sedimentation outlet C connected in sequence, with a total effective volume of 150L. Wherein, the shells of the upflow aerobic reactor and the upflow anoxic reactor are cuboid+inverted cone, the shell of the sedimentation outlet is cuboid, and the bottom of the inverted cone is connected with a sludge output pipe j.

[0130] The top of the upflow aerobic reactor A is provided with a water outlet a, a sampling port b, and a probe extension port c; the bottom is provided with a stirring device 11 and a first return port d, and the rotating shaft of the stirring device is inserted in the shaft sleeve. A paddle is connected to the bottom of the rotating shaft, and the paddle is a hollow trapezoid.

[0131] The top of the upflow anoxic reactor B is provided with a sampling port b, a probe extension port c and a first overflow port e, and a water distributor 10 is provided below the f...

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Abstract

The invention relates to the technical field of sewage treatment and provides a total flooding type sewage treatment method with simultaneous nitrogen and phosphorus removal. The method comprises thefollowing steps: feeding sewage to be treated into an up-flow type aerobiotic reactor, and carrying out filtration by using filtering packing, nitration by using biological aerobiotic packing, organicmatter decomposition and dephosphorization in sequence, so as to obtain aerobic treatment sewage; feeding the sewage into the up-flow type aerobiotic reactor, carrying out anaerobic and anaerobic treatment by using biological anoxia packing and bio-bed packing in sequence, and carrying out denitrification, dephosphorization and anaerobic decomposition; finally feeding the sewage into a precipitate effluent discharger, passing through an adsorption material and a pH value adjusting material in sequence, and discharging the sewage. By adopting the method provided by the invention, the total nitrogen removal rate of a treated effluent is up to 85%, the total phosphorus removal rate is up to 70% or greater, the effluent can be directly discharged into a natural water body, and the treatment efficiency of black and odorous sewage can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a fully submerged sewage treatment method for simultaneous denitrification and phosphorus removal. Background technique [0002] In the past ten years, with the rapid development of urbanization and imperfect environmental protection facilities in my country, the amount of sewage discharged into natural water bodies has increased rapidly, and the pollution has caused severe anaerobic water bodies. + 、HS - , S 2- with Fe 2+ , Mn 2+ A series of reactions in the plasma, as well as anaerobic decomposition of polluted organic matter, produce gray-black suspended matter such as FeS and MnS and H 2 S, CH 4 , NH 3 Wait for odorous gas to form black and odorous water. According to the results of the first round of national investigation of black and odorous water bodies, as of February 18, 2016, among the 295 prefecture-level and above cities in the country, the total numb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F101/16
CPCC02F1/001C02F1/28C02F1/66C02F3/30C02F9/00C02F2001/007C02F2101/16
Inventor 杨知颖王维易
Owner 江苏中百洲环境科技有限公司
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