A mobile method and device for purifying sewage and black and odorous water

A black and odorous water body, mobile technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of wide-ranging pollution, large cost of funds, and repeated effects. Achieve the effect of avoiding secondary pollution, low consumption of bacteria agent, and obvious effect

Active Publication Date: 2021-08-03
INST OF AQUATIC LIFE ACAD SINICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The pollution of black and odorous water bodies covers a wide range of areas and is mostly distributed in the corners of cities. In many cases, it is impossible to replenish enough clean water, making the treatment extremely difficult. The conventional method is to quickly decompose organic matter in the water body by adding bacterial agents or plant aquatic plants in large areas for restoration and treatment, but The former often treats the symptoms but not the root cause, nutrients such as nitrogen and phosphorus are still circulating in the water body, and the effect is repeated; the latter takes effect slowly
In addition, the earth-breaking dredging project is huge and costs a lot of money, which is not suitable for popularization
Based on the above situation, portable water purification all-in-one machines have attracted much attention in recent years, but most of them only increase the dissolved oxygen in the water body through a simple aeration device, and improve the metabolic activity of aerobic microorganisms, so as to remove some carbon, nitrogen and sulfur, and reduce the odor of the water body. However, it cannot efficiently and thoroughly remove water pollutants, especially phosphorus

Method used

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  • A mobile method and device for purifying sewage and black and odorous water
  • A mobile method and device for purifying sewage and black and odorous water
  • A mobile method and device for purifying sewage and black and odorous water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 Screening of bacteria forming micelle, preparation of bacteria agent and degradation effect

[0026] 1. Screening of micelle-forming bacteria and preparation of bacterial agents:

[0027] (1) Sample collection and strain screening: Collect activated sludge from the aerobic section of municipal sewage treatment plants or sediment from black and odorous water bodies, dilute the samples with sterile water gradients, and take 10 -3 ~10 -6 Spread 100 microliters of the diluted solution on the R2A or ZM solid plate medium; place the medium at 25-30°C for 48-72 hours, pick a single colony on the cultured plate and inoculate it into the R2A or ZM solid plate medium; In the aerobic culture tube of ZM liquid medium, cultivate it in a shaker at 25-30°C and 150-250rpm for 24-48 hours, select the strains with good flocculation state under this condition, and use a plate on R2A or ZM solid medium Purified strains were obtained by streaking method;

[0028] The R2A liquid...

Embodiment 2

[0043] Example 2 A mobile device for purifying sewage and black and odorous water

[0044] Such as figure 1 and figure 2 As shown, a mobile device for purifying sewage and black and odorous water includes a hull 1, a first aeration pump 8, a second aeration pump 9, an intelligent control module 3 and a piping system. The middle part of the hull 1 is provided with a middle cavity 2, through which the hull is divided into a symmetrical first aeration tank 6 and a second aeration tank 7, and the bottoms of the first and second aeration tanks are respectively equipped with brackets for aeration pumps 10. The first aeration pump 8 and the second aeration pump 9 are respectively fixed on the aeration pump bracket 10; the pipeline system includes No. 1 pipeline 17, No. 2 pipeline 18, No. 3 pipeline 19, No. 4 pipeline 20, and No. 5 pipeline 21. One end of the No. 1 to No. 5 pipelines is respectively connected to the five-way pipe joint 22, the other end of the No. 1 pipeline 17 is ...

Embodiment 3

[0047] Example 3 A mobile method for purifying sewage and black and odorous water

[0048] The 13 bacterial micelle-forming bacterial strains screened in Example 1 were expanded and cultivated in R2A medium to the stationary phase, and the bacterial liquid was left to stand for half an hour, and the supernatant was discarded after it naturally settled, and the concentrated The bacteria solution is mixed in equal volume ratio to prepare the bacteria agent.

[0049] During on-site use, according to the actual situation, the bacterial agent is added to the mobile sewage purification device described in Example 2 at a ratio of 1% to 5% by volume. When using the bacterial agent for the first time, the first aeration tank and the second aeration tank are filled with water to 1 / 2 of the volume of the aeration tank through a two-way water pump, and the prepared bacterial agent is added, and the aeration is continued for a period of time (5h ~10h) to revive the bacterial agent. After ...

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Abstract

The invention discloses a mobile method and device for purifying sewage and black and odorous water bodies. Bacteria agent is prepared by screening and purifying the gelatinous group-forming bacteria obtained from the activated sludge of municipal sewage treatment plants or the bottom sludge of black and odorous water bodies. , under the condition of aeration, the micelle-forming bacteria adapted to the polluted water environment such as black and odorous rivers can grow and multiply rapidly, and the microorganisms that can efficiently degrade and transform pollutants can be enriched in situ through the adsorption and flocculation of micelle bacteria, Finally, the carbon, nitrogen, phosphorus, sulfur and other elements in the pollutants are removed from the water body in the form of microbial biomass (similar to the remaining activated sludge), and both the symptoms and the root causes are treated, which not only improves the transparency of the water body (cures the symptoms), but also completely eliminates the organic matter and odor that cause the water body to blacken. High nitrogen and phosphorus nutritional factors (cure the root cause), effectively control and delay the re-blackening of water bodies, and the mobile sewage purification device has a simple structure and is easy to move, and can efficiently treat various high-pollution-loaded water bodies.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and specifically relates to a method for purifying sewage and black and odorous water, and a movable aeration reaction purification device for sewage and black and odorous water, which can efficiently treat various high pollution load waters such as black and odorous water . Background technique [0002] In the process of environmental governance, the task of sewage treatment in rivers and ditches is very heavy, especially in some black and odorous water bodies, which are currently difficult to solve in terms of discharge volume and treatment technology. A large number of pollutants are deposited in water bodies, which not only damage the urban environment, affect industrial and agricultural production, but may seriously pollute drinking water sources. Therefore, black and odorous water bodies are often treated as the focus of environmental governance. [0003] The pollution of black an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20
CPCC02F3/02C02F3/34Y02W10/10
Inventor 邱东茹刘双元高娜戴景程李书杨
Owner INST OF AQUATIC LIFE ACAD SINICA
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