Emergency treatment system for river pollution treatment

Abstract

The invention discloses an emergency treatment system for river pollution treatment. The emergency treatment system is characterized by mainly comprising a river, a lifting pump, a water inlet pipe, a quartz sand filter, integrated emergency equipment, a water outlet pipe, a clean water tank, a backwashing pump, a backwashing pipe and the like, the integrated emergency equipment consists of a membrane reaction tank and an equipment room. The system can adopt internal pressure type air water flushing, attachments on the surface are easy to clean, in addition, friction cleaning is carried out along with the elastic filler on the outer side, extra chemical washing is not needed, the service life is long, and installation and maintenance are easy. The system provided by the invention performs ectopic treatment on sewage in the river, and then discharges the treated sewage to the downstream of the river after reaching the standard, has the advantages of high treatment load, small occupied area, low operation energy consumption and the like, and meets the requirements of emergency treatment of the polluted water in the river.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment, and particularly to an emergency treatment system for river pollution control. Background Art

[0002] With the rapid development of China's social economy, especially the rapid development of urban industry and population, the emissions of sewage and pollutants have increased significantly. Due to the large amount of industrial wastewater and domestic wastewater discharged into the river, river pollution has become one of the environmental problems that have attracted increasing attention at home and abroad.

[0003] The main treatment objects of river assessment items are SS, COD, nitrogen and phosphorus, etc. Generally, the index of rivers flowing into the sea is Class V of surface water, and the index of branch rivers flowing into water sources is Class III of surface water. To cope with the sudden exceeding of river water quality standards, it is necessary to build corresponding sewage emergency treatment equipment.

[0004] In recent years, traditional activated sludge treatment methods or conventional primary treatment methods have been adopted. However, the activated sludge treatment method requires a long commissioning time, cannot be quickly put into use, and is greatly affected by temperature, so the treatment effect is not satisfactory, especially in winter. The off-site treatment method combining the high-efficiency air flotation system and the BAF system has a high operating cost and many control difficulties, making it difficult to be widely applied. And the MBR membrane method equipment developed on the basis of activated sludge, for example, the patent number 202222448080.X discloses a membrane tank type sewage treatment system for river sewage treatment, which adopts a filtration part, a collecting pool, and an MBR membrane tank type sewage treatment equipment. However, the MBR membrane method equipment has complex cleaning. In order to maintain the membrane flux, online and offline cleaning are required, otherwise it will affect its service life. Moreover, the wastewater generated during the chemical cleaning process cannot be discharged near the river, resulting in difficulty in popularizing and applying this process.

[0005] Therefore, it is necessary to design an emergency treatment system with simple equipment, small floor area and convenient cleaning to directly treat river sewage off-site, especially for malignant sudden environmental water pollution incidents, and to treat polluted water bodies in real time and on-site to achieve the standard of river water quality. Summary of the Invention

[0006] The purpose of the present invention is to provide an emergency treatment system for river pollution control in view of the deficiencies of existing river treatment technologies.

[0007] To achieve the above object, the present invention provides an emergency treatment system for river pollution control, and its main features are as follows: This system mainly consists of a river, a lift pump, an inlet pipe, a quartz sand filter, an integrated emergency device, an outlet pipe, a clean water tank, a backwash pump, and a backwash pipe, etc.; The integrated emergency device consists of a membrane reaction tank and an equipment room. The membrane reaction tank is provided with a silicon carbide flat membrane module, elastic fillers, a fixed bracket, and aeration facilities; The equipment room is provided with a blower, a water production pump, and a control system; The elastic fillers are installed on the fixed bracket, and the aeration facilities are installed below the fixed bracket. The blower is connected to the aeration facilities through a pipeline; A water collection pipe is provided at the upper end of the silicon carbide flat membrane module, and the water collection pipe is communicated with the water production pump; The blower is connected to the silicon carbide flat membrane module through a pipeline; The silicon carbide flat membrane module is arranged vertically; The elastic fillers are installed in the cavities between the silicon carbide flat membrane modules and on both sides.

[0008] A barrage is set on the river. The lift pump is set upstream of the barrage, and the clean water tank and the backwash pump are set downstream of the barrage; The integrated device is set on one side bank of the river; The inlet pipe is connected to the quartz sand filter, the outlet pipe is connected to the water production pump in the integrated emergency device and is connected to the clean water tank of the river. The backwash pump is set in the clean water tank, and the backwash pump is connected to the silicon carbide flat membrane module in the integrated emergency device through a backwash pipe.

[0009] The beneficial effects of the present invention: The adopted elastic fillers have a higher specific surface area, rapid film formation, no blockage, and improve the biological load of the pool body; The adopted silicon carbide flat membrane has the characteristics of short water channels and low operating pressure, which can reduce the energy consumption of the overall equipment. At the same time, internal pressure air-water flushing can be adopted, and the attachments on the surface are easy to clean. In addition, together with the friction cleaning of the elastic fillers on the outside, no additional chemical cleaning is required, and it has a long service life and is easy to install and maintain. The system of the present invention treats the sewage water in the river in a different location and then discharges it downstream of the river after reaching the standard. It has the advantages of high treatment load, small floor area, and low operating energy consumption, meeting the requirements of emergency treatment of polluted river water. Description of the Drawings

[0010] Attached Figure 1 is a schematic diagram of an embodiment of the present invention.

[0011] Attached Figure 2 is a schematic diagram of the structure of the integrated emergency device.

[0012] Figure 1 In the figure, 1 - river; 2 - lift pump; 3 - inlet pipe; 4 - quartz sand filter; 5 - integrated emergency device; 6 - outlet pipe; 7 - clean water tank; 8 - backwash pump; 9 - backwash pipe; 20 - barrage.

[0013] Figure 2Among them, 10 - membrane reaction tank; 11 - equipment room; 12 - silicon carbide flat membrane module; 13 - elastic filler; 14 - fixed bracket; 15 - aeration facility; 16 - blower; 17 - water production pump; 18 - control system; 19 - collecting pipe. Detailed implementation manner

[0014] The following combines the attached Figure 1 and the attached Figure 2 to further illustrate the detailed implementation manner of the present invention.

[0015] This system mainly consists of a river channel 1, a lift pump 2, a water inlet pipe 3, a quartz sand filter 4, an integrated emergency device 5, a water outlet pipe 6, a clear water tank 7, a backwash pump 8, a backwash pipe 9, etc.; the integrated emergency device 4 is composed of a membrane reaction tank 10 and an equipment room 11. The membrane reaction tank 10 is provided with a silicon carbide flat membrane module 12, an elastic filler 13, a fixed bracket 14, and an aeration facility 15; the equipment room 11 is provided with a blower 16, a water production pump 17, and a control system 18; the elastic filler 13 is installed on the fixed bracket 14, the aeration facility 15 is installed below the fixed bracket 15, and the blower 16 is connected to the aeration facility 15 through a pipeline; a collecting pipe 19 is provided at the upper end of the silicon carbide flat membrane module 12, and the collecting pipe 19 is communicated with the water production pump 17; the blower 16 is connected to the silicon carbide flat membrane module 12 through a pipeline; the silicon carbide flat membrane module 12 is arranged in the vertical direction; the elastic filler 13 is installed in the cavities between and on both sides of the silicon carbide flat membrane modules 12.

[0016] A water retaining dam 20 is arranged on the river channel, the lift pump 2 is arranged upstream of the water retaining dam 20, and the clear water tank 7 and the backwash pump 8 are arranged downstream of the water retaining dam 20; the integrated device 5 is arranged on one side bank of the river channel; the water inlet pipe 3 is connected to the quartz sand filter 4, the water outlet pipe 6 is connected to the water production pump 17 in the integrated emergency device 5 and is connected to the clear water tank 7 of the river channel, the backwash pump 8 is arranged in the clear water tank 7, and the backwash pump 8 is connected to the silicon carbide flat membrane module 12 in the integrated emergency device 5 through the backwash pipe 9.

[0017] The polluted river water enters the quartz sand filter 4 through the lifting pump 2 to remove large particle pollutants. The effluent from the quartz sand filter tank 4 enters the membrane reaction tank 10 of the integrated emergency equipment 5. The elastic filler 13 in the membrane reaction tank 10 is a polypropylene three-dimensional hanging filler, on which a number of domesticated and cultured denitrification and dephosphorization microorganisms are attached. The river water undergoes denitrification and dephosphorization reactions in the membrane reaction tank 10, and then is filtered through the silicon carbide flat membrane to achieve deep purification. Finally, the water production pump 17 discharges the water produced by the silicon carbide flat membrane into the clear water tank 7 downstream of the river through the outlet pipe 6. The integrated emergency equipment 5 is backwashed with the produced water in the clear water tank 7, and then the blower 16 is used to air wash the silicon carbide flat membrane assembly 12 in the membrane reaction tank 10. The elastic filler 13 in the membrane reaction tank 10 rolls and rubs the membrane surface between the silicon carbide flat membrane components 12 under the drive of air and water flow, and the attachments on the surface are easy to clean. In addition, the friction cleaning of the elastic filler on the outside further improves the cleaning effect of the membrane component, quickly restores the membrane flux, and does not require additional drug washing. The integrated emergency equipment 5 has a long service life and is easy to install and maintain. It has the advantages of high processing load, small footprint, and low operating energy consumption, and meets the requirements of emergency treatment of river polluted water bodies.

Claims

1. An emergency treatment system for river pollution control, characterized in that: This system mainly consists of a river channel, a lifting pump, a water inlet pipe, a quartz sand filter, an integrated emergency device, a water outlet pipe, a clear water tank, a backwashing pump and a backwashing pipe, etc.; the integrated emergency device is composed of a membrane reaction tank and an equipment room, and the membrane reaction tank is provided with a silicon carbide flat membrane module, elastic fillers, fixed brackets and aeration facilities; the equipment room is provided with a blower, a water production pump and a control system; the elastic fillers are installed on the fixed brackets, the aeration facilities are installed below the fixed brackets, and the blower is connected to the aeration facilities through a pipeline; a water collecting pipe is arranged at the upper end of the silicon carbide flat membrane module, and the water collecting pipe is communicated with the water production pump; the blower is connected to the silicon carbide flat membrane module through a pipeline; the silicon carbide flat membrane module is arranged vertically; the elastic fillers are installed in the cavities between and on both sides of the silicon carbide flat membrane modules.

2. The emergency treatment system for river pollution control according to claim 1, wherein: A barrage is set on the river channel, the lifting pump is set upstream of the barrage, and the clear water tank and the backwashing pump are set downstream of the barrage; the integrated device is set on one side bank of the river channel; the water inlet pipe is connected to the quartz sand filter, the water outlet pipe is connected to the water production pump in the integrated emergency device and is connected to the clear water tank of the river channel, the backwashing pump is set in the clear water tank, and the backwashing pump is connected to the silicon carbide flat membrane module in the integrated emergency device through a backwashing pipe.

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