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A low energy consumption deep denitrification system for sewage

A deep denitrification, low energy consumption technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, water pollutants, etc., can solve the problems of low treatment capacity, incomplete nitrogen removal, secondary pollution, etc. Achieve the effect of improving the efficiency of denitrification treatment, improving denitrification treatment and reducing secondary pollution

Active Publication Date: 2022-05-27
深圳市中信方圆建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, these processes obviously have their own shortcomings; the removal of nitrogen by pre-denitrification is incomplete, and the content of nitrite nitrogen and nitrate nitrogen in the effluent cannot be guaranteed. If you want to obtain a higher nitrogen removal rate, you must increase the internal circulation In this way, the corresponding energy consumption will be greatly increased; the post-denitrification depends on the addition of fast and easily degradable organic carbon sources, which in turn causes the secondary pollution of the effluent by organic matter, so that the water quality of the effluent organic matter cannot be guaranteed. The processing time is long and the processing volume is low;

Method used

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  • A low energy consumption deep denitrification system for sewage
  • A low energy consumption deep denitrification system for sewage
  • A low energy consumption deep denitrification system for sewage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A low energy consumption deep denitrification system for sewage, as follows Figure 1-4 As shown, it includes a reaction device 1, a water inlet device, a water outlet device and an air pump for sewage denitrification reaction, and also includes:

[0039] a biofilm carrier, the biofilm carrier is arranged in the reaction device, and the biofilm carrier is used for inhabitation and growth and reproduction of microorganisms;

[0040] Aeration module 2, the aeration module 2 is communicated with the air pump, and the aeration module 2 is composed of an aeration head 21, an aeration pipe 22 and an adjustment unit 23, and the aeration head 21 is connected to the aeration head 21 through a ball joint. The end of the pipe 22, and one or more groups of air intake passages are opened on the ball joint, the adjustment unit 23 includes one or more of a cylinder or an electric push rod, and one end of the adjustment unit 23 is installed in the aeration pipe On the outer ring of 22...

Embodiment 2

[0046] The difference from Embodiment 1 lies in the following Figure 1-4 As shown, the end of the aeration pipe 22 is connected with a driving source, and the driving source is one or more of a motor or a rotating cylinder. The driving source is used to drive the aeration pipe 22 to rotate. A swivel ring is sleeved, and a through air inlet hole 221 is opened between the swivel ring and the aeration pipe 22, and the air inlet hole 221 is communicated with the air pump through a hose;

[0047] The outer ring of the aeration head 21 is evenly provided with arc-shaped blades 24, the arc-shaped blades 24 are bent toward the side close to the aeration head 21, and the thickness of the middle of the arc-shaped blades 24 gradually decreases toward both sides.

[0048] The driving source drives the aeration pipe 22 to rotate, so that the aeration head 21 rotates, so that when the gas bursts through the aeration head 21, a vortex can be formed, so that the large bubbles generated when ...

Embodiment 3

[0053] The difference from the second embodiment is as follows Figure 4 and Image 6 As shown, the interior of the arc-shaped blade 24 is provided with an air passage 241, one end of the air passage 241 is communicated with the interior of the aeration head 21, and the other end is communicated with the opening 242 opened on the arc-shaped blade 24. The opening 242 is located at one end of the arc-shaped blade 24 away from the aeration head 21 .

[0054] By setting the air passage one 241 on the arc-shaped blade 24, the gas is ejected from the air passage one 241. At the same time, because the arc-shaped blade 24 rotates with it, the area where the gas acts is larger, and the spray of the aeration head 21 is reduced. The time wasted by the outgoing gas acting from top to bottom, thus improving the efficiency of denitrification treatment of sewage;

[0055] Specific workflow:

[0056] The difference from the specific working process of the second embodiment is that when the...

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Abstract

The invention belongs to the technical field of sewage treatment, and specifically relates to a low-energy-consumption deep denitrification system for sewage, which includes a reaction device for sewage denitrification reaction, a water inlet device, a water outlet device and an air pump, and also includes a microbe The biofilm module for habitat and growth and reproduction, the aeration module and the control module composed of the aeration head, the aeration pipe and the adjustment unit, the invention uses the adjustment unit to adjust the angle of the aeration head in all directions, so that the solubility in the reaction device There are zonal changes, and there is an obvious solubility gradient, which makes an aerobic zone appear in a certain area with aeration head aeration, and an anoxic area in a certain area without aeration head aeration, so that nitrifying bacteria appear in the reaction device The environment adapted to the action of denitrifying bacteria is to achieve the dynamic stability of dissolved oxygen content in synchronous nitrification and denitrification, so as to realize the deep denitrification treatment of sewage, and reduce the cost input and secondary pollution.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a low-energy consumption deep denitrification system for sewage. Background technique [0002] Nitrogen is a very important pollution factor that causes water eutrophication and environmental pollution; for example, water pollution in Dianchi Lake in Yunnan, Taihu Lake in Jiangsu, Chaohu Lake in Anhui, etc. is caused by nitrogen compounds that cause eutrophication of water bodies and become more and more serious; more urgent Yes, the current urban sewage treatment rate in my country is only about 5%, and most of them do not have the ability to remove nitrogen and phosphorus; [0003] At present, traditional biological denitrification technology is widely used in my country, which includes assimilation reaction, nitrification reaction and denitrification reaction. In the denitrification stage, the nitrifying bacteria convert ammonia nitrogen into nitrate nitrogen (nitrous ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F101/16
CPCC02F3/302C02F2101/16C02F2203/006
Inventor 周华俊
Owner 深圳市中信方圆建筑工程有限公司
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