WO2018024170A1

WO2018024170A1 - Emergency treatment device for riverway water

Info

Publication number: WO2018024170A1
Application number: PCT/CN2017/095087
Authority: WO
Inventors: 尹志强; 周震球; 钱俊
Original assignee: 江苏兆盛环保股份有限公司
Priority date: 2016-07-31
Filing date: 2017-07-30
Publication date: 2018-02-08
Also published as: CN106145287A

Abstract

An emergency treatment device for riverway water comprises three parts: a dosing system, a magnetic efficient precipitation system and a dewatering system. The dosing system comprises a first reaction stirring box (1), a second reaction stirring box (3), a third reaction stirring box (4) and a drug storage box (11), and stirrers are disposed in the reaction stirring boxes. The magnetic efficient precipitation system comprises a precipitation pond (5) and a magnetic powder separator (2) that communicate with each other by means of a mud conveying pipe (8). The dewatering system is a volute dewatering machine (12). Magnetic powder separated by the magnetic powder separator (2) continues to be placed into the second reaction stirring box (3) for being used in a recyclable manner, separated mud is conveyed, through a pipe and a mud pump, to the volute dewatering machine (12) for being dewatered, water subjected to pressure filtration is again returned to the first reaction stirring box (1) for being again treated. The emergency treatment device is integrated as a container, facilitates movement, the operation is flexible, investment costs are low, and the service life the device is long.

Description

River water emergency treatment device

Technical field

[0001] The present invention relates to the field of environmental protection equipment, and more particularly to a river water emergency treatment device.

Background technique

[0002] Urban rivers are important carriers for maintaining urban ecological balance, optimizing urban landscape, and improving living environment. However, the construction of water conservancy facilities also makes the river a static water body with poor liquidity and insufficient self-purification ability. Severe pollution incidents such as cyanobacteria outbreaks, "river floods" and "water blooms" have been seriously erupted, which not only hinders urban landscape, destroys the image of the city, but also affects the living and living conditions of residents along the river, directly threatening people's living environment and ecology. health.

[0003] Existing sewage treatment equipments are often built in sewage treatment plants, factories and mines, etc. due to complex equipment, large land occupation, large fixed investment, high operating costs, etc., and cannot directly treat river sewage, especially Vicious sudden environmental water pollution incidents can not effectively treat polluted water bodies.

technical problem

[0004] The present applicant provides a well-structured river water emergency treatment device for the shortcomings of the above-mentioned existing sewage treatment equipment that cannot deal with sudden river water pollution, so that it can be conveniently placed beside the river channel, for malignant suddenness. Environmental water pollution incidents are handled urgently.

Problem solution

Technical solution

[0005] The technical solution adopted by the present invention is as follows:

[0006] A river water emergency treatment device includes a dosing system, a magnetic high efficiency sedimentation system, and a dehydration system, and the dosing system includes a first reaction agitation tank, a second reaction agitation tank, and a third reaction agitation tank. a medicine storage tank is provided with a stirrer in each reaction stirring tank; the magnetic high-efficiency sedimentation system comprises a sedimentation tank and a magnetic powder separator, and the sedimentation tank and the magnetic powder separator are connected through a mud pipeline, and the sediment containing the magnetic powder is deposited. The mud is transported to the magnetic powder separator for magnetic powder separation; the dewatering system adopts a stacked screw dewatering machine; the magnetic powder separated by the magnetic powder separator is continuously put into the second reaction stirring tank for recycling, and the separated sludge is transported through the pipeline and the sludge pump. Dewatering to the stacking screw dewatering machine, the filtered water is returned to the first reaction mixing tank Re-enter the process.

[0007] As a further improvement of the above technical solution:

[0008] The inlet pipe is in communication with the first reaction agitation tank, and the first reaction agitation tank and the second reaction agitation tank are connected by a first overflow pipe, and the second reaction agitation tank and the third reaction agitation tank pass through the bottom of the tank. The water passage is connected.

[0009] Polyferric sulfate or ferric chloride is added to the first reaction stirred tank, magnetic powder is added to the second reaction stirred tank, and PAM is added to the third reaction stirred tank.

[0010] The sedimentation tank is circular, the center is an inlet pipe, communicates with the third reaction agitation tank through a second water pipe, the middle part is a sloping plate filtration zone, and the bottom is a mud scraper that rotates around the center. The bottom center is a collection bucket.

[0011] All the devices of the dosing system, the magnetic high efficiency sedimentation system, and the dehydration system are disposed in the same tank.

[0012] The lower portion of the magnetic powder separator is equipped with a lifting mechanism, and a window is arranged on the upper casing.

[0013] The box is a standard container size.

Advantageous effects of the invention

Beneficial effect

[0014] The beneficial effects of the present invention are as follows:

[0015] The treatment effect of the invention is good, the effluent is equivalent to the ultrafiltration effluent, the turbidity is <1.0 NTU, the SS<5.0 mg/L, the TP<0.055/L, the COD removal rate is about 43.58%, and the PTP removal rate is about 87.98%. The removal rate of PSS is about 85<3⁄4, and the moisture content of P mud cake is about ₇₅ ~ ₈₀ <3⁄4. The invention utilizes the large specific gravity of the magnetic powder and the micro magnetic field of the magnetic powder, and the flow is short, the whole process can be completed in 10 minutes, the daily treatment is 1000 m ³ /d, and the impact load resistance is strong, and the high water volume or high pollution load can still be used. Stable operation.

[0016] The invention has a small footprint and is integrated into a container type, which is convenient for movement and operation, low in investment cost, long in equipment life, low in equipment cost and construction cost. Low operating costs, low magnetic loss, recycling throughout the system, high recovery rates; can save 10%-30<3⁄4 of dosage, saving on pharmacy and sludge disposal costs.

Brief description of the drawing

DRAWINGS

1 is a front view of the present invention. 2 is a plan view of FIG. 1.

[0019] In the figure: 1, the first reaction mixing tank; 2, magnetic powder separator; 3, the second reaction mixing tank; 4, the third reaction mixing tank; 5, the sedimentation tank; 6, the second water pipe; Scraper; 8, mud pipe; 9, water passage; 10, lifting mechanism; 11, storage tank; 12, stack screw dewatering machine; 13, electrical control box; 14, inlet pipe; 15, outlet pipe; 16, the first water pipe; 17, flexible mud pipe; 18, the box; 19, magnetic powder injection port.

BEST MODE FOR CARRYING OUT THE INVENTION

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0020] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0021] As shown in FIG. 1 and FIG. 2, the river water emergency treatment device of the present invention is composed of a dosing system, a magnetic high-efficiency sedimentation system, and a dehydration system, and a first reaction agitation tank 1 and a second reaction agitation tank. 3. The third reaction agitation tank 4 and the drug storage tank 11 constitute a dosing system, and the inlet pipe 14 is in communication with the first reaction agitation tank 1, and the first reaction agitation tank 1 and the second reaction agitation tank 3 pass the first pass. The water pipe 16 is connected, the second reaction agitation tank 3 and the third reaction agitation tank 4 are communicated through the water passage 9 at the bottom of the tank, and the ferroferric sulfate or ferric chloride is added to the first reaction agitation tank 1 in the second reaction stirring. Magnetic powder was added to the tank 3, PAM was placed in the third reaction stirring tank 4, and a stirrer was placed in each reaction stirring tank to sufficiently stir. The sedimentation tank 5 and the magnetic powder separator 2 constitute a magnetic high-efficiency sedimentation system, the sedimentation tank 5 is circular, the center is an inlet pipe, and is connected with the third reaction agitation tank 4 through the second water conduit 6, and the middle portion is a sloping plate filtration zone. The bottom part is a scraper 7 which rotates around the center in a circle. The medicinal sewage enters the lower part of the sedimentation tank 5 through the central inlet pipe, the sewage rises and passes through the swash plate filtration zone, and the filtered purified water is discharged through the outlet pipe 15, wherein The solid particles are intercepted and fall into the bottom of the sedimentation tank 5, and are scraped by the scraper 7 into the bottom collecting hopper. The sedimentation tank 5 and the magnetic powder separator 2 communicate with the flexible sludge pipe 17 through the sludge pipe 8, and the precipitated sludge containing a large amount of magnetic powder is sent to the magnetic powder separator 2 for magnetic powder separation. The separated magnetic powder is continuously put into the second reaction agitation tank 3 for recycling, and the separated sludge is sent to the dewatering system 12 of the dewatering system through the pipeline and the sludge pump for dehydration, and the water after the filtration is still returned to the first The reaction agitation tank 1 is re-entered into the treatment.

[0022] As shown in FIG. 1 and FIG. 2, the present invention has a box structure, and all the equipments of the dosing system, the magnetic high-efficiency sedimentation system, and the dehydration system can be disposed in a container 18 of a container, and the structure is compact and the layout is reasonable. It has a small footprint and can be conveniently transported to the shore of the river. The electric control box 13 is connected to the electricity and directly discharged. deal with. In the present invention, a lifting mechanism 10 is mounted on the lower portion of the magnetic powder separator 2, and a window is formed on the upper casing 18, and the magnetic powder separator 2 is raised by the hydraulic or electric starting and lowering mechanism 10 in actual operation, and the magnetic powder injection port 19 is located. Above the second reaction agitation tank 3, the magnetic powder can be directly and efficiently applied.

[0023] The invention puts the medicament and the magnetic powder in the sewage, and utilizes the large specific gravity of the magnetic powder and the micro-magnetic field of the magnetic powder, the sludge floc can complete the supernatant liquid in a short and very short kind, and the same sludge passes through the sludge pump row. After entering the stacking screw dewatering machine, the sludge will be discharged after dewatering by the stacking screw, which will not cause secondary pollution of the river channel. The entire process is fully automated, with effluent turbidity <1.0 NTU and clear water. The same problem solved the problem that the river sewage is difficult to handle, the treatment cost is high, secondary pollution is caused, and the installation and commissioning cycle is long.

The above description is illustrative of the present invention and is not intended to limit the invention, and the invention may be modified in any form without departing from the spirit of the invention.

Claims

Claim

[Claim 1] A river water emergency treatment device, comprising a dosing system, a magnetic high efficiency sedimentation system, and a dehydration system, wherein: the dosing system comprises a first reaction agitation tank (1), a second reaction a stirring tank (3), a third reaction stirring tank (4) and a medicine storage tank (11), and a stirring device is arranged in each reaction stirring tank; the magnetic high efficiency sedimentation system comprises a sedimentation tank (5) and a magnetic powder separator ( 2) The composition, the sedimentation tank (5) and the magnetic powder separator (2) are connected through the sludge pipe (8), and the sediment sludge containing the magnetic powder is sent to the magnetic powder separator (2) for magnetic powder separation; the dehydration system The stacked screw dewatering machine (12); the magnetic powder separator (2) separated magnetic powder continues to be put into the second reaction mixing tank (3) for recycling, and the separated sludge is transported to the stack screw dewatering machine through the pipeline and the sludge pump. (12) Dewatering is carried out, and the filtered water is returned to the first reaction agitation tank (1) for re-entry treatment.

[Claim 2] The river water emergency treatment device according to claim 1, wherein: the water inlet pipe (1)

4) communicating with the first reaction agitation tank (1), the first reaction agitation tank (1) and the second reaction agitation tank (3) are connected through the first water conduit (16), and the second reaction agitation tank ( 3) Connect to the third reaction agitation tank (4) through the water passage (9) at the bottom of the tank.

[Claim 3] The river water emergency treatment device according to claim 1, wherein: the polymerization ferric sulfate or ferric chloride is added to the first reaction agitation tank (1), and the second reaction agitation tank (3) The magnetic powder is added, and PAM is added to the third reaction agitation tank (4).

[Claim 4] The river water emergency treatment device according to claim 1, wherein: the sedimentation tank (5) is circular, the center is an inlet pipe, and passes between the third reaction agitation tank (4) The second water pipe (6) is connected, the middle part is a sloping plate filter area, the bottom part is a mud scraper (7) that rotates around the center, and the bottom center is a collecting mud bucket.

[Claim 5] The river water emergency treatment device according to claim 1, wherein: the dosing system

All equipment of the magnetic high-efficiency sedimentation system and dehydration system are set in the same tank (18).

[Claim 6] The river water emergency treatment device according to claim 5, wherein: the magnetic powder separator (2) is mounted with a lifting mechanism (10) at a lower portion thereof, and has an upper casing (18) window.

[Claim 7] The river water emergency treatment device according to claim 5, wherein: the casing (18) is the standard container size.