CN213141729U - Unpowered current-limiting sewage treatment device - Google Patents

Abstract

The utility model relates to an unpowered current-limiting sewage treatment plant, include: water collecting device, grid scrubbing device, current limiting device, good oxygen processing apparatus, membrane filter equipment and degassing unit, water collecting device grid scrubbing device current limiting device good oxygen processing apparatus membrane filter equipment degassing unit connects gradually, sewage process flow in after water collecting device collects the grid device removes dirt, current limiting device adjusts the flow rate, biofilm carrier in the good oxygen processing apparatus carries out the biofilm enrichment, good oxygen microorganism in the biofilm carries out microbial degradation, membrane filter equipment carries out filtration treatment, degassing unit carries out germicidal treatment. The utility model has simple region classification, compact structure and small occupied area; the device has a current-limiting device, and overcomes the defects that the unpowered sewage treatment device cannot limit current and has poor impact load resistance.

Description

Unpowered current-limiting sewage treatment device

Technical Field

The utility model relates to a sewage treatment device field especially relates to an unpowered current-limiting sewage treatment plant.

Background

Along with the rapid growth of national economy and the rapid development of rural areas in China, the amount of rural sewage is increasing day by day, and the sewage components are gradually complicated. According to the data of the housing and urban and rural construction departments, 17848 total constructed towns are built in the whole country (not listed in statistics in Tibet, Hongkong and Macao), and the total number of the constructed towns for treating the domestic sewage accounts for 25.3 percent of the total number of the constructed towns in the whole country, by 2015. 1.15 ten thousand villages and 264.5 ten thousand villages exist in the country, the residents of the villages have 7.65 hundred million people, and the villages for treating the domestic sewage are only 815 villages, which account for 7.1 percent of all villages. The data fully show that a large amount of rural domestic sewage is not treated, and the strengthening of rural domestic sewage treatment is particularly urgent and important. In order to ensure the ecological balance of rural areas, the treatment problem of agricultural wastewater, especially rural sewage, is very slow.

At present, facilities such as artificial wetlands, biological contact oxidation, aeration biological filters, artificial wetlands, stabilization pond systems, anaerobic/itching/aerobic biological filters and the like are mainly adopted for treating rural domestic sewage in China, and the facilities generally have the defects of high treatment cost, long operation period, large occupied area, difficult installation and maintenance, difficult standard reaching of water quality and the like. Therefore, the research and development of a novel, high-efficiency and low-energy rural sewage treatment device is very important.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above current situation, provide a novel, high-efficient, low-energy unpowered current-limiting sewage treatment plant.

The utility model adopts the technical proposal that: an unpowered flow-limiting sewage treatment device, comprising: water collecting device, grid scrubbing device, current limiting device, good oxygen processing apparatus, membrane filter equipment and degassing unit, water collecting device grid scrubbing device current limiting device good oxygen processing apparatus membrane filter equipment degassing unit connects gradually, sewage process flow in after water collecting device collects the grid device removes dirt, current limiting device adjusts the flow rate, biofilm carrier in the good oxygen processing apparatus carries out the biofilm enrichment, good oxygen microorganism in the biofilm carries out microbial degradation, membrane filter equipment carries out filtration treatment, degassing unit carries out germicidal treatment.

The utility model has the effects that: the utility model has simple region classification, compact structure and small occupied area; the device has the flow limiting device, overcomes the defects that the unpowered sewage treatment device cannot limit the flow and has poor impact load resistance, is not influenced by the terrain, and has low treatment cost, low operation and maintenance cost, low sludge yield and standard effluent quality.

Drawings

Fig. 1 is a schematic structural view of an unpowered current-limiting sewage treatment device provided by the utility model.

Detailed Description

The utility model provides an unpowered current-limiting sewage treatment plant is introduced below with the accompanying drawing:

referring to fig. 1, the utility model provides an unpowered current-limiting sewage treatment device, which comprises: water collecting device 1, grid scrubbing device 2, current limiting device 3, good oxygen processing apparatus 4, membrane filter equipment 5, degassing unit 6, water collecting device 1 grid scrubbing device 2 current limiting device 3 good oxygen processing apparatus 4 membrane filter equipment 5 degassing unit 6 connects gradually, and sewage process flow in after water collecting device 1 collects grid device 2 and decontaminates, current limiting device 3 regulation flow rate, biofilm carrier in the good oxygen processing apparatus 4 carries out the biomembrane enrichment, aerobic microorganism in the biomembrane carries out microbial degradation. The membrane module in the membrane filtering device 5 is used for filtering, and the sterilizing device 6 is used for sterilizing.

The water collecting device 1 comprises a water collecting tank 11 and a sealing tank 12, wherein the water collecting tank 11 is arranged above the sealing tank 12, and the bottom of the water collecting tank 11 is communicated with the top of the sealing tank 12; the top of the water collecting tank 11 is provided with a water outlet connected with the grating decontamination device 2, and the seal box 12 is provided with a sewage inlet.

A check valve 13 is arranged at the joint of the water collecting tank 11 and the sealed tank 12, and the check valve 13 only allows fluid to flow from the sealed tank 12 to the water collecting tank 11. The function of the one-way valve 13 is to form a sealed and anoxic environment when the sealed box 12 is filled with sewage, so that the high molecular substances in the sewage are hydrolyzed, acidified and degraded into small molecular substances.

The grating decontamination device 2 comprises a first box body 21 and a grating plate 22 arranged in the first box body 21, wherein a water inlet of the first box body 21 is connected with the water collecting device 1, a water outlet of the first box body 21 is connected with the flow limiting device 3, and the water inlet of the first box body 21 and the water outlet of the first box body 21 are positioned on two sides of the grating plate 22.

The grid plates 22 are used to remove impurities and larger particulate matter from the wastewater.

Flow-limiting device 3 includes current-limiting box 31, restriction valve 32 and baffle 33, current-limiting box 31 the water inlet with grid scrubbing device 2 is connected and switches on, current-limiting box 31 the delivery port with aerobic treatment device 4 is connected and switches on, restriction valve 32 sets up current-limiting box 31's water inlet department, restriction valve 32 velocity of flow can manual regulation, thereby can adjust the entering the sewage volume in the current-limiting box 31, baffle 33 sets up in the current-limiting box 31, three sides of baffle 33 with current-limiting box 31's inner wall is fixed, baffle 33 will be cut apart in the current-limiting box 31 and be reserve zone 311 and supply zone 312, current-limiting box 31's delivery port with supply zone 312 switches on, restriction valve 32 with reserve zone 311 switches on.

When the height of the contaminated water in the reserve zone 311 is higher than the height of the baffle 33, the contaminated water in the reserve zone 311 overflows into the supply zone 312.

The aerobic treatment device 4 comprises an aerobic box body 41, an aeration device 42 and biological filler 43, wherein a water inlet of the aerobic box body 41 is communicated with a water outlet of the flow limiting box 31, a water outlet of the aerobic box body 41 is communicated with the membrane filtering device 5, an air outlet end of the aeration device 42 is arranged in the aerobic box body 41, and the aerobic box body 41 is filled with the biological filler 43. The aeration device 42 is used for maintaining the oxygen content in the aerobic tank 41, so that the sewage is degraded by a biofilm formed on the biological filler 43, and the aeration device 42 is positioned below the biological filler 43.

The inner wall of the aerobic box body 41 is coated with diatom ooze.

The membrane filtering device 5 comprises a second box body 51 and a membrane assembly 52, a water inlet of the second box body 51 is communicated with a water outlet of the aerobic box body 41, a water outlet of the second box body 51 is communicated with the sterilizing device 6, the membrane assembly 52 is in a cylindrical shape without a cover from top to bottom, the upper end and the lower end of the membrane assembly 52 are fixed with the inner wall of the second box body 51, a water inlet of the second box body 51 is communicated with the cylindrical inner space of the membrane assembly 52, and a water outlet of the second box body 51 is communicated with the outer space of the membrane assembly 52.

In this embodiment, the membrane module 52 is an organic flat membrane module or an organic hollow fiber membrane module.

The sedimentation disinfection device 6 comprises a disinfection tank 61 and an ultraviolet disinfection lamp tube 62, wherein a water inlet of the disinfection tank 61 is arranged at the bottom of the disinfection tank 61, a water outlet of the disinfection tank 61 is arranged on the side wall of the disinfection tank 61, and the ultraviolet disinfection lamp tube 62 is arranged at the top of the disinfection tank 61.

When in use, the working process is as follows: sewage enters the water collecting device 1, the water collecting device 1 collects water to a fixed amount and then starts to flow into the grating decontamination device 2, and the grating decontamination device 2 is responsible for removing large-particle floaters and large garbage in the sewage, so that the operation of plugging the device in the subsequent treatment process is avoided; the sewage reaches the flow limiting device 3, the water quality of the sewage is uniform through the flow limiting flow velocity, and then the sewage enters the aerobic treatment device 4 for organic matter decomposition treatment to reduce COD, ammonia nitrogen and the like; and then, carrying out further degradation and removal work on pollutants in the sewage through a membrane filtering device 5, and finally, flowing into a disinfection tank for disinfection treatment, and finally discharging water meeting the standard.

A no power limit sewage treatment plant, compare with current equipment and have following advantage:

1) the region classification is simple, the structure is compact, and the occupied area is small;

2) the device is provided with the current limiting device, so that the defects that the unpowered buried sewage treatment device cannot limit current and has low impact load resistance are overcome;

3) the biological membrane is not separately partitioned, so that materials and resources are saved;

4) the diatom ooze is attached in the aerobic treatment device, and the defect of non-ideal oxygenation effect of the device is overcome by utilizing the oxygen absorption characteristic of the diatom ooze, so that the effect is good.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (8)

1. The utility model provides an unpowered current limiting sewage treatment plant which characterized in that includes: the water collecting device, the grating decontamination device, the current limiting device, the aerobic treatment device, the membrane filtration device and the disinfection device are sequentially connected, sewage flows into the grating decontamination device for decontamination after being collected by the water collecting device, the current limiting device adjusts the flow speed, biological fillers in the aerobic treatment device are enriched by biological membranes, aerobic microorganisms in the biological membranes are subjected to microbial degradation, the membrane filtration device is subjected to filtration treatment, the disinfection device is subjected to sterilization treatment, the current limiting device comprises a current limiting box, a current limiting valve and a baffle plate, a water inlet of the current limiting box is connected and communicated with the grating decontamination device, and a water outlet of the current limiting box is connected and communicated with the aerobic treatment device, the flow limiting valve is arranged at a water inlet of the flow limiting box, the flow speed of the flow limiting valve can be manually adjusted, so that the amount of sewage entering the flow limiting box can be adjusted, the baffle is arranged in the flow limiting box, three side edges of the baffle are fixed with the inner wall of the flow limiting box, the baffle divides the flow limiting box into a storage area and a supply area, a water outlet of the flow limiting box is communicated with the supply area, and the flow limiting valve is communicated with the storage area.

2. The unpowered current-limiting sewage treatment device according to claim 1, wherein the water collection device comprises a water collection tank and a seal tank, the water collection tank is arranged above the seal tank, and the bottom of the water collection tank is communicated with the top of the seal tank; the top of the water collecting tank is provided with a water outlet connected with the grating decontamination device, the seal box is provided with a sewage inlet, the joint of the water collecting tank and the seal box is provided with a one-way valve, and the one-way valve only allows fluid to flow from the seal box to the water collecting tank.

3. The unpowered current-limiting sewage treatment device according to claim 2, wherein the grille decontamination device comprises a first box and a grille plate disposed in the first box, a water inlet of the first box is connected to the water collection device, a water outlet of the first box is connected to the current limiting device, and the water inlet of the first box and the water outlet of the first box are disposed on two sides of the grille plate.

4. The unpowered current-limiting sewage treatment device according to claim 3, wherein the aerobic treatment device comprises an aerobic tank, an aeration device and a biological filler, a water inlet of the aerobic tank is connected and communicated with a water outlet of the current-limiting tank, a water outlet of the aerobic tank is connected and communicated with the membrane filtering device, a gas outlet of the aeration device is arranged in the aerobic tank, the aerobic tank is filled with the biological filler, and the aeration device is located below the biological filler.

5. The unpowered current-limiting sewage treatment device according to claim 4, wherein the membrane filtering device comprises a second tank and a membrane module, the membrane module is in a cylindrical shape without upper and lower covers, the upper and lower ends of the membrane module are fixed to the inner wall of the second tank, a water inlet of the second tank is communicated with the cylindrical inner space of the membrane module, and a water outlet of the second tank is communicated with the outer space of the membrane module.

6. The unpowered current limiting sewage treatment device according to claim 5, wherein the disinfection device comprises a disinfection tank and an ultraviolet disinfection lamp tube, the water inlet of the disinfection device is arranged at the bottom of the disinfection tank, the water outlet of the disinfection tank is arranged on the side wall of the disinfection tank, and the ultraviolet disinfection lamp tube is arranged at the top of the disinfection tank.

7. The unpowered current limiting sewage treatment device according to claim 5, wherein the inner wall of the aerobic tank is coated with diatom ooze.

8. The unpowered current limiting sewage treatment device according to claim 6, wherein the membrane filtration device employs an organic flat membrane module or an organic hollow fiber membrane module.

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