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Low-energy-consumption sewage deep denitrification system

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

Active Publication Date: 2022-01-11
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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  • Low-energy-consumption sewage deep denitrification system
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  • Low-energy-consumption sewage deep denitrification system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A low-energy sewage deep denitrification system, as follows Figure 1-4 As shown, it includes reaction device 1, water inlet device, water outlet device and 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 the habitat, growth and reproduction of microorganisms;

[0040] Aeration module 2, the aeration module 2 is connected with the air pump, 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 unit through a ball joint The end of the pipe 22, and one or more sets of intake passages are opened on the ball joint, the adjustment unit 23 includes one or more of the cylinder or electric push rod, and one end of the adjustment unit 23 is installed on the aeration tube On the outer ring of 22, the other end is installed on the bottom of t...

Embodiment 2

[0046] The difference from Embodiment 1 is as follows Figure 1-4 As shown, the end of the aeration tube 22 is connected with a driving source, and the driving source is one or more of a motor or a rotary cylinder. The driving source is used to drive the aeration tube 22 to rotate, and the outer ring of the aeration tube 22 A swivel is sleeved, and a through air inlet 221 is opened between the swivel and the aeration pipe 22, and the air inlet 221 communicates 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 part of the arc-shaped blades 24 gradually decreases toward both sides.

[0048] The driving source drives the aeration tube 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 bubble...

Embodiment 3

[0053] The difference from the second embodiment is as follows Figure 4 and Figure 6 As shown, the inside of the curved blade 24 is provided with an air channel one 241, one end of the air channel one 241 communicates with the inside of the aerator head 21, and the other end communicates with the opening 242 provided on the arc blade 24, the opening 242 is located at the end of the arc blade 24 away from the aeration head 21 .

[0054] By setting the air channel one 241 on the arc-shaped blade 24, the gas is ejected from the air channel 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 spraying of the aerator head 21 is reduced. The time wasted due to the effect of the released gas 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 Embodiment 2 is that when the gas in the ae...

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Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a low-energy-consumption sewage deep denitrification system which comprises a reaction device for sewage denitrification reaction, a water inlet device, a water outlet device and an air pump, and further comprises a biological membrane module for inhabitation, growth and reproduction of microorganisms, an aeration module composed of an aeration head, an aeration pipe and an adjusting unit. The adjusting unit is used for adjusting the angle of the aeration head in all directions, so that the solubility in the reaction device is changed in a zoning mode, an obvious solubility gradient exists, an aerobic zone appears in a certain area where aeration is conducted through the aeration head, and an anoxic zone appears in a certain area without aeration of the aeration head, so that an environment adapted to the action of nitrifying bacteria and denitrifying bacteria appears in the reaction device, namely, the dynamic stability of the content of dissolved oxygen in synchronous nitrification and denitrification is achieved, the deep denitrification treatment on sewage is realized, and the cost input and secondary pollution are reduced.

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, the pollution of water bodies such as Dianchi Lake in Yunnan, Taihu Lake in Jiangsu, and Chaohu Lake in Anhui is caused by nitrogen compounds and the eutrophication of water bodies is becoming more and more serious; more urgent Yes, my country's current urban sewage treatment rate is only about 5%, and most of them do not have the ability to remove nitrogen and phosphorus; [0003] At present, the traditional biological denitrification technology is commonly used in China, which includes assimilation reaction, nitrification reaction and denitrification reaction; in the assimilation stage, a part of ammonia nitrogen in the wastewater is assimilated into new cel...

Claims

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Application Information

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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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