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Sewage treatment device and method

A sewage treatment device and regulating device technology, applied in radioactive purification, nuclear engineering, etc., can solve the problem that the dosing device cannot accurately dosing, etc., to solve the problems of increased production, convenient equipment maintenance and maintenance, and less manual operation Effect

Active Publication Date: 2019-06-18
CPI YUANDA ENVIRONMENTAL PROTECTION ENG
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Problems solved by technology

[0004] The embodiment of the present invention provides a sewage treatment device and method, which solves the problem that the existing dosing device cannot accurately dosing

Method used

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  • Sewage treatment device and method
  • Sewage treatment device and method

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Embodiment Construction

[0046] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0047] figure 1 For a structural schematic diagram of a sewage treatment device provided in this embodiment, see figure 1 , the sewage treatment device in this embodiment includes: a reaction device 1, a first medicament regulating device 2, a mixing device 3, a second medicament regulating device 4 and a filtering device 5; wherein,

[0048] The reaction device 1 includes: a reaction vessel 11, a first interface for injecting radioactive waste water into the reaction vessel, a second interface for injecting the first medicament into the reaction vessel, and a second interface for injecting the first agent into the reaction vessel 3 A third port for outputting the first liquid mixed with the radioactive waste water and the first chemical in the reaction...

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Abstract

The embodiment of the invention provides a sewage treatment device and method. The device includes: a reaction unit, a first reagent regulation unit, a mixing unit, a second reagent regulation unit and a filter unit. The first reagent regulation unit controls the input flow rate of a first reagent output to a reaction container according to the flow rate of radioactive wastewater and / or the pH value of first liquid. The second reagent regulation unit controls the input flow rate of a second reagent put into the mixing unit according to the flow rate of radioactive wastewater and / or the streaming current value of a second liquid. The sewage treatment device can achieve precise adding of the first reagent and second reagent and lower the reagent cost, also can reduce the generation of radioactive precipitate and reduce the follow-up solid waste treatment cost at the same time. The sewage treatment device also has the advantages of high automation degree, few manual operation, safety andreliability, convenient equipment overhaul and maintenance, etc.

Description

technical field [0001] The invention relates to the field of nuclear power plant radioactive wastewater treatment, in particular to a sewage treatment device and method. Background technique [0002] Existing nuclear power plant wastewater treatment devices mostly adopt the method of adding flocculants to remove suspended solids and radioactive metal colloids. Generally, the dosage of agents is set according to the designed maximum suspended solids concentration, while suspended solids and radioactive metals in nuclear power plant wastewater In most cases, the colloid does not reach the maximum value, which will lead to excessive dosing of the agent, which will lead to an increase in the production of radioactive precipitates, which will increase the cost of subsequent solidification and disposal of the precipitated sludge. At the same time, the existing sedimentation filtration uses activated carbon deep bed filtration. Although activated carbon is cheap and easy to impleme...

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Application Information

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IPC IPC(8): G21F9/06
Inventor 李斗马若霞吉庆方祥洪杨彬许国静陈子惟贾紫永刘强伍灵
Owner CPI YUANDA ENVIRONMENTAL PROTECTION ENG
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