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A deep denitrification and turbidity reduction reactor and its application

A deep denitrification and reactor technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, multi-stage water treatment, etc., can solve the problems of long residence time and low removal effect

Inactive Publication Date: 2020-11-13
山西华力碧蓝环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, after the biological reaction of sewage treatment completes the oxidation of carbon, the process of nitrification and denitrification is carried out under certain conditions to convert nitrogen into N 2 However, this process requires a longer residence time and requires a strict anaerobic environment. After anoxic or anaerobic denitrification denitrification treatment, the turbidity of the effluent cannot be guaranteed. Usually, after the nitrification process It is discharged when the ammonia nitrogen discharge standard is reached, and the removal effect of total nitrogen is low

Method used

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  • A deep denitrification and turbidity reduction reactor and its application
  • A deep denitrification and turbidity reduction reactor and its application
  • A deep denitrification and turbidity reduction reactor and its application

Examples

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Effect test

Embodiment 1

[0043] The effluent from the secondary treatment of a sewage plant directly enters the equipment of the present invention, and successively passes through the chemical mixing flocculation zone I, the deep denitrification zone II, the inclined plate sedimentation zone III and the rotary filter zone IV.

[0044] In the agent mixing and flocculation zone I, the speed of the nozzle 3 of the tapered throat pipe is v=4.05m / s, the speed of the waiting pipe is v=2.65m / s, and the exit speed of the inverted conical expanding barrel 5 is v=95mm / s.

[0045] Add 14% xanthan gum, 3.85% polyaluminum chloride, 1.2% kaolin and 0.65% CaCl according to the mass ratio of the original preparation to the conventional denitrification bioflocculant provided by the Heilongjiang Provincial Key Laboratory of Environmental Biotechnology 2 , to make a special biological denitrification flocculant, increase the flocculation effect, meet the requirements of denitrification carbon source, and improve the deni...

Embodiment 2

[0051] The secondary treatment effluent (temperature 12° C.) of a certain sewage plant in the north directly enters the equipment of the present invention. In the medicament mixing and flocculation zone I, the speed of the nozzle 3 of the shrinking throat pipe v=3.95m / s, and the speed of the waiting pipe v=2.55m / s, the outlet velocity v=85mm / s of inverted conical expanding barrel 5.

[0052] Add 11% xanthan gum, 3.5% polyaluminum chloride, 1.1% kaolin and 0.55% CaCl according to the mass ratio of the original preparation to the conventional denitrification bioflocculant provided by the Heilongjiang Provincial Key Laboratory of Environmental Biotechnology 2 , to make a special biological denitrification flocculant, increase the flocculation effect, meet the requirements of denitrification carbon source, and improve the denitrification efficiency.

[0053] The length of the single-layer inclined plate 12 in the inclined plate precipitation zone III is 0.4m; the inclination angl...

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Abstract

The invention belongs to the technical field of sewage treatment and particularly relates to a deep denitrification and turbid-descending reactor and application. According to the technical scheme, the deep denitrification and turbid-descending reactor comprises a bin body, a drug mixed flocculation area, a deep denitrification area, an inclined plate sedimentation area and a rotary filter area, wherein the bottom of the bin body is an inverted cone; a mounting frame is arranged in the middle of the bin body; the drug mixed flocculation area is arranged in the middle area of the lower part of the mounting frame; the deep denitrification area is located at the lower part of the mounting frame and is arranged at the periphery of the drug mixed flocculation area; the rotary filter area is arranged in the middle area of the upper part of the mounting frame; and the inclined plate sedimentation area is located at the upper part of the mounting frame and is arranged at the periphery of the rotary filter area. According to the deep denitrification and turbid-descending reactor and the application, deep denitrification and enhanced phosphorus removal can be achieved, the sewage effluent standard is improved to achieve the reuse requirements, and meanwhile, the energy utilization rate is increased.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a deep denitrification and turbidity reduction reactor and its application. Background technique [0002] Urban sewage treatment and reuse is an important means to alleviate the shortage of water resources, promote the conservation and protection of water resources, and realize the recycling of regional water resources. The potential of sewage treatment and reuse in our country is huge, and the development of new sewage regeneration processes and methods has broad market prospects. Through the medium and long-term forecast and in-depth analysis of my country's sewage treatment and reuse technology demand, it is found that the key technical indicators that restrict the reuse of sewage are the total nitrogen and turbidity of the reused water, and most treatment processes cannot effectively reduce turbidity and total nitrogen at the same time Especially in the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F101/16
CPCC02F1/001C02F1/5245C02F1/54C02F1/56C02F3/28C02F9/00C02F2001/007C02F2101/16C02F2201/002C02F2301/08
Inventor 于鹏飞王勇勇黄殿男李希
Owner 山西华力碧蓝环保技术有限公司
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