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System and method for treating endogenous pollutants in water

A technology for pollutants and water bodies, which is applied in the direction of water pollutants, water/sewage treatment, flotation water/sewage treatment, etc. It can solve the problems of large sludge volume, high treatment cost, and inability to effectively remove endogenous pollutants. achieve the effect of avoiding release

Inactive Publication Date: 2020-10-09
DONGGUAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] One object of the present invention is to provide a water body source pollutant treatment system to solve the problems of large sludge volume, high treatment cost, inability to effectively remove endogenous pollutants and easy diffusion of pollutants in existing treatment methods. The treatment system provided by the invention can effectively remove endogenous pollutants and their easy-to-diffusion problems, and the amount of dredging is small, which can quickly improve the water quality of the water body

Method used

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  • System and method for treating endogenous pollutants in water
  • System and method for treating endogenous pollutants in water
  • System and method for treating endogenous pollutants in water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, a water body source pollutant treatment system includes:

[0042] The flushing device 1 includes a movable cover body 11 with an opening at the bottom and an air compressor 12 communicated with the cover body 11, the cover body 11 is arranged in the water body, and the top of the cover body 11 is provided with an exhaust port 111; wherein, the present Embodiments 3 to 4 of the invention adopt the cover body 11 whose length, width and height are 2m: 1m: 1m. Of course, the body shape setting of the cover body 11 can also be changed according to the length, width and height of the water body to be treated, and will not be specifically described here. Restrictions; the diameter of the exhaust port 111 should not be set too large to prevent too much outside air from entering the cover body 11, which cannot meet the needs of fully stirring the sediment and aeration, and maintain a certain gap between the inside of the cover body 11 and the outside o...

Embodiment 2

[0055] Such as figure 1 Shown, a kind of water internal source pollutant treatment method comprises the following steps:

[0056] S1. Set the cover body 11 in the water body, the bottom opening of the cover body 11 is in contact with the bottom mud of the water body, use the air compressor 12 to pass air into the cover body 11, and stir the bottom mud; wherein, the cover body 11 The exhaust port 111 on the top is provided with a hollow vertical pipe 1111 higher than the surface of the water body for exhausting, and the swirl velocity in the cover body 11 is 0.1-0.6m / s;

[0057] S2. After the stirring is completed, use the water pump 3 to extract the mud-water mixture in the cover body 11, introduce it into the air flotation separation tank 21, and add the medicament in the dosing device 4, and then pass into the air flotation separation tank 21 Micro nano bubbles 221 are carried out Reaction; after the reaction is completed, utilize the mud scraper 23 to carry out the mud-wat...

Embodiment 3

[0060] The treatment system of Example 1 and the treatment method of Example 2 of the present invention are applied to the treatment of endogenous pollution of the Renminyong River Channel in Dongguan City.

[0061] Renminyong belongs to a black and smelly river in Dongguan City. The river is 600m long, with an average width of 18m and an area of ​​about 10800m 2 , the average water depth is about 50cm, and the endogenous pollution is serious. For this river course, the medicament proportioning that the present invention adopts is, by mass parts, chitosan: aluminum sulfate: permanganate=40:40:20, and medicament dosing concentration is 40mg / L, and the governance process shared about In 15 days, a total of 210m of sludge with a moisture content of 60% was produced 3 , The comparison of people's water quality before and after treatment is shown in Table 1.

[0062] Table 1 Comparison of water quality of people's gushing water body before and after treatment

[0063]

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Abstract

The invention provides a water endogenous pollutant treatment system which comprises a flushing device, an air floatation separation device, a dosing device and a sludge treatment device. Compared with the prior art, the method has the advantages that air-flushing rotational flow washing, dosing flocculation and micro-nano bubble air floatation are adopted for cooperative treatment, so that the problems that in the prior art, the sludge amount is large, the treatment cost is high, the water quality is slowly improved, and the water quality cannot be effectively improved are solved; by adoptingthe treatment system disclosed by the invention, light organic pollutants in the bottom mud can be effectively removed, a large amount of heavy mud and sand are prevented from being removed, the desilting amount is remarkably reduced, and the sludge generation amount is only 1 / 10 of that of a traditional desilting method. According to the invention, the purposes of sludge elution, pollutant separation and clear water returning to the river are synchronously achieved, and the water quality of the water body is rapidly improved. In addition, the invention further provides a water endogenous pollutant treatment method.

Description

technical field [0001] The invention relates to the technical field of water body ecological restoration, in particular to a water body source pollutant treatment system and treatment method. Background technique [0002] The treatment of polluted water bodies is one of the hot spots in the field of ecological environment protection. In April 2015, since the "Water Pollution Prevention and Control Action Plan" (referred to as "Water Ten Measures") was promulgated, all parts of the country have invested in vigorous water environment comprehensive treatment, giving birth to a market of more than one trillion yuan. [0003] At present, the comprehensive treatment of water bodies in my country usually adopts the technical route of "controlling source and intercepting pollution, internal source treatment, ecological restoration, and quality assurance of running water". Among them, the source control and sewage interception project based on the drainage pipe network and sewage tr...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F101/30C02F101/20
CPCC02F1/24C02F1/5281C02F1/5236C02F1/56C02F2209/08C02F2209/16C02F2001/007C02F2103/007C02F2101/30C02F2209/22C02F2209/18C02F2209/04C02F2101/20C02F2303/26
Inventor 吕斯濠何忠艳杨草胡爽甘诗迪胡秀红
Owner DONGGUAN UNIV OF TECH
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