Treatment system and treatment method for controlling pipeline corrosion stink

A treatment system and pipeline technology, applied in the direction of special treatment goals, sustainable biological treatment, chemical instruments and methods, etc., can solve the problems of long-term actual control, high cost of FNA reagents, large consumption, etc., and achieve a stable and simple preparation process Energy saving, convenience and low cost

Active Publication Date: 2017-07-28
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the cost of FNA agent is high, the consumption is large, and the sewer pipeline cannot be actually controlled for a long time.

Method used

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  • Treatment system and treatment method for controlling pipeline corrosion stink
  • Treatment system and treatment method for controlling pipeline corrosion stink
  • Treatment system and treatment method for controlling pipeline corrosion stink

Examples

Experimental program
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Embodiment 1

[0060] Such as figure 1 As shown, the treatment system for controlling pipeline corrosion and stench includes: source separation toilet 2, flushing device 3, urine storage tank 4, SBR reaction tank 5, FNA storage tank 6, FNA preparation device 7, sewage pipeline 8 and Sewage treatment plant 9 , wherein the FNA preparation device includes a urine storage tank 4 , an SBR reaction tank 5 and an FNA storage tank 6 .

[0061] In this embodiment, in combination with the number and location of the population, the treatment system is set up upstream of the sewage pipeline, and the diluted urine is pumped into the SRB reaction tank after staying in the urine storage tank for 2 days. The urine ammonia nitrogen concentration is 400-900mgN / L, the residence time is 1 day, and the dissolved oxygen concentration is 0.2-0.3mgDO / L.

[0062] Such as image 3 As shown, use the urine product of the system of the present invention and the existing chemical agents that can produce FNA to treat th...

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Abstract

The invention provides a treatment system and method for controlling pipeline corrosion stink. The treatment system comprises a urine storage tank, a free nitrous acid reaction tank and a free nitrous acid dosing system which are sequentially connected, wherein the urine storage tank is used for in-situ collection and urine hydrolysis, the free nitrous acid reaction tank is used for preparing free nitrous acid solution from hydrolyzed urine through nitrosation, and the free nitrous acid dosing system is used for realizing contact of the free nitrous acid solution and a pipeline. The treatment system and method have the advantages of simple structure, convenience in operation, stable effect and the like, and have a quite wide application prospect in source separating reclamation, sewage pipeline operation optimization management and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment and recycling, and more specifically, to a treatment system and treatment method for controlling corrosion and stench in pipelines. Background technique [0002] Sewage pipeline corrosion and odor is a global problem, which seriously threatens human and environmental health. The cost of pipeline repair and reconstruction is huge. Therefore, the problem of pipeline corrosion and odor prevention is extremely serious. The sulfide in sewage is the main pollutant that causes pipeline problems. It is caused by sulfate-reducing bacteria attached to the biofilm on the pipe wall and the sediment at the bottom of the pipe. Therefore, the fundamental way to solve the problem of pipeline corrosion and odor is to inhibit or kill sulfate-reducing bacteria. [0003] At present, many control methods are limited to the removal of existing sulfides in water bodies, such as aeration and oxygenation, adjust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C02F3/34
CPCC02F3/1263C02F3/34C02F2303/04Y02W10/10
Inventor 刘艳臣左志强郑敏
Owner TSINGHUA UNIV
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