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Carbon source medicament adding equipment and adding method

A carbon source and agent technology, applied in chemical instruments and methods, water treatment parameter control, special compound water treatment, etc. Increase cost waste and other issues

Active Publication Date: 2020-07-31
北京恒润慧创环境技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At the same time, most of the sewage treatment plants are affected by factors such as seasons, rainfall, time, residential water habits, industrial water doping, etc., and there are fluctuations in the influent water volume and influent total nitrogen concentration.
In order to ensure that the effluent is stable and qualified, the sewage treatment plant has to manually control the dosing of carbon source chemicals for removing total nitrogen, and often adopts excessive dosing methods such as constant overdosing, delayed overdosing, and fluctuating impulse dosing. Caused the waste of carbon source agent dosing cost and the instability of effluent index

Method used

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  • Carbon source medicament adding equipment and adding method
  • Carbon source medicament adding equipment and adding method
  • Carbon source medicament adding equipment and adding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Example 1: Carbon source agent dosing equipment at a single carbon source dosing point 1

[0094] see figure 1 . The carbon source medicament dosing device 1 of this embodiment includes a calculation control module 10 , a dosing control module 20 , an influent water volume monitoring module 30 , a pre-nitrate nitrogen monitoring module 41 and a post-nitrate nitrogen feedback module 42 . Each module is electrically connected to the input interface of the calculation control module 10 through its output interface, so as to send the detection signal data to the calculation control module 10 .

[0095] The carbon source chemical dosing equipment 1 of this embodiment adopts a two-way feedback mode, through the dynamic changes of influent water volume, carbon source dosage, and the concentration of nitrate nitrogen / total nitrogen in the front and back sections of the biochemical process system, the overall system total is obtained. The actual carbon source dosage required f...

Embodiment 2

[0098] Example 2: Carbon source agent dosing equipment with dual carbon source dosing points 1

[0099] In order to improve the feedback accuracy of the two-way feedback mode, on the basis of the structure shown in Embodiment 1, the carbon source chemical dosing device 1 of this embodiment further has dual post-positioned nitrate nitrogen feedback modules. like figure 2 As shown, the rear nitrate nitrogen feedback module 42 includes two parts, the rear nitrate nitrogen monitoring module 421 and the total nitrogen effluent monitoring module 422, wherein the rear nitrate nitrogen monitoring module 421 is installed at the water inlet of the denitrification filter 8 for Obtain and output the post-feedback filter influent nitrate nitrogen monitoring value c', the total nitrogen effluent monitoring module 422 is installed at the water outlet of the denitrification filter 8, and is used to obtain and output the post-feedback filter effluent total nitrogen monitoring value e. By se...

Embodiment 3

[0101] Example 3: Dosing method of single carbon source dosing point

[0102] This embodiment further demonstrates the operation method for precise dosing of carbon source chemicals by using the carbon source chemical agent dosing device 1 with dual carbon source dosing points shown in Example 1.

[0103] A municipal sewage treatment plant was initially built, with a designed treatment volume of 50,000 cubic meters per day. The AAO treatment process and the secondary sedimentation tank advanced treatment process were adopted, and the effluent quality was stable up to the quasi-Class IV local standard. The concentrations of the main indicators of total phosphorus, total nitrogen, ammonia nitrogen, COD, and BOD5 are not higher than 0.3, 5, 1.5, 30, and 6 ml / liter respectively. Process flow chart such as image 3 shown. Influent water quality is listed in Table 3-1.

[0104] Table 3-1 Influent water quality

[0105]

[0106] According to the process design value of the sew...

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Abstract

The invention belongs to the technical field of sewage treatment, in particular to carbon source medicament accurate adding equipment. Output interfaces of a water inlet quantity monitoring module, afront nitrate nitrogen monitoring module and a rear nitrate nitrogen feedback module are electrically connected with an input interface of a calculation control module respectively; an output interface of a calculation control module is electrically connected with an input interface of a dosing control module; dynamic accurate control over carbon source medicament adding of a sewage treatment plant is achieved, excessive adding such as constant excessive adding, delayed excessive adding and fluctuation impulse adding caused by manually judging the carbon source adding amount through experienceis avoided, and the medicament adding amount and cost are saved. The invention further relates to a method for accurately adding a carbon source medicament by using the equipment.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a device for precise dosing of carbon source chemicals, and further relates to a method for using the device to accurately add carbon source chemicals. Background technique [0002] With the development of our country's social economy, the population increases and the scale of enterprises increases, resulting in an increasing amount of sewage discharge and inflow. Therefore, it is very necessary to develop technologies and agents for efficient sewage treatment. The biochemical nitrogen removal process based on the activated sludge method is the mainstream technology of sewage treatment plants in China and even in the world. The sewage to be treated first enters the biochemical pool (such as the AAO treatment unit) for nitrate nitrogen oxidation treatment. The nitrifying bacteria in the sewage are used to oxidize the nitrate nitrogen in the sewage into nitrate...

Claims

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Application Information

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IPC IPC(8): C02F3/30
CPCC02F3/302C02F2209/15C02F2305/06
Inventor 周继柱刘芳丁强宋胜男江瀚王光辉汪文朱国普张行石伟杰
Owner 北京恒润慧创环境技术有限公司
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