CN213865835U

CN213865835U - Process unit for treating micro-polluted underground water

Info

Publication number: CN213865835U
Application number: CN202022576938.1U
Authority: CN
Inventors: 李合海; 唐培帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-08-03
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a process units of little contaminated groundwater of processing belongs to the groundwater processing field. It includes drop aeration water tank and crosses the jar, drop aeration water tank is last to connect raw water inlet tube and raw water outlet pipe, cross the overflow pipe of jar top connection, the drainage outlet pipe is connected to the bottom, it is equipped with first filter equipment and second filter equipment to cross in the jar, first filter equipment includes the top cap, one-level annular filter wall, the bottom plate, one-level annular filter wall locates between top cap and the bottom plate, the bottom plate is fixed on crossing the jar inner wall, one-level annular filter wall outside is equipped with the mouth of a river on the bottom plate, the raw water outlet pipe passes inside top cap intercommunication one-level annular filter wall, second filter equipment includes from last biological filter layer down setting gradually, bearer layer and water distributor. The utility model discloses carry out multistage filtration to the complicated composition pollutant of micro-polluted groundwater, the filter effect is good, and filtration efficiency is high, relies on biological solid manganese effect, can accomplish effectively getting rid of to manganese.

Description

Process unit for treating micro-polluted underground water

Technical Field

The utility model belongs to an underground water treatment process units, specifically speaking especially relates to a process units who handles micro-polluted groundwater.

Background

Along with economic development and scientific and technological progress, environmental problems are increasingly prominent, particularly the problem of underground water pollution, in recent years, different degrees of overproof manganese and ammonia nitrogen appear in underground water bodies in different regions, the overproof manganese becomes a great problem for treating micro-polluted underground water in northern regions, and the biological manganese fixation technology is widely applied to conventional treatment processes. The conventional drop aeration-ceramsite adsorption process adopts natural contact oxidation and physical adsorption of air, when the filtering speed is reduced to a certain degree, the total manganese can not be effectively removed, the fluctuation of the total manganese concentration of effluent water can only be controlled to be about 0.5 mm/L, and pollutants with other complex components can not be filtered.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a handle process units who pollutes groundwater a little to overcome among the prior art and handle the defect that the process units who pollutes groundwater a little can not accomplish effective getting rid of total manganese and complicated pollutant.

The utility model discloses an adopt following technical scheme to realize: the utility model provides a handle process units of micro-pollution groundwater, includes drop aeration water tank and crosses the jar, drop aeration water tank is last to connect raw water inlet tube and raw water outlet pipe, cross the overflow pipe of connection of jar top, the drainage outlet pipe is connected to the bottom, cross and be equipped with first filter equipment and second filter equipment in the jar, first filter equipment includes top cap, one-level annular filter wall, bottom plate, one-level annular filter wall locates between top cap and the bottom plate, the bottom plate is fixed on crossing the jar inner wall, one-level annular filter wall outside is equipped with down the mouth of a river on the bottom plate, the raw water outlet pipe passes inside top cap intercommunication one-level annular filter wall, second filter equipment includes from last biological filter layer, support layer and the water distributor that down sets gradually.

Furthermore, the first filtering device further comprises a second-stage annular filtering wall, and the second-stage annular filtering wall is sleeved outside the first-stage annular filtering wall and is arranged between the top cover and the bottom plate.

Furthermore, the biological filter layer comprises a modified volcanic biological filter material for removing iron and manganese.

Furthermore, the bearing layer is cobblestones.

Furthermore, a backwashing pipe is connected to the filtered water outlet pipe, the backwashing pipe is connected to a backwashing water tank, and a backwashing pump is arranged on the backwashing pipe. Furthermore, flow meters are arranged on the backwashing pipe and the raw water inlet pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model carries out multi-stage filtration to the micro-polluted groundwater complex component pollutants by arranging the first-stage annular filter wall and the second-stage annular filter wall, and has good filtration effect and high filtration efficiency;

(2) the utility model discloses a biological filter membrane in the filtration jar after ripe, relies on biological solid manganese effect, can accomplish effectively getting rid of to manganese for it is up to standard to go out water stabilization of water quality.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an enlarged sectional view taken along line a-a of fig. 1.

In the figure: 1. a raw water inlet pipe; 2. a flow meter; 3. a drop aeration water tank; 4. a raw water outlet pipe; 5. a filter tank; 6. a top cover; 7. an overflow pipe; 8. a first-stage annular filter wall; 9. a secondary annular filter wall; 10. a water outlet; 11. a base plate; 12. a biological filtration layer; 13. a support layer; 14. a water distribution pipe; 15. a filtered water outlet pipe; 16. a backwash pipe; 17. a backwash pump; 18. the tank is flushed.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1:

as shown in FIG. 1 and FIG. 2, the device for treating micro-polluted groundwater comprises a drop aeration water tank 3 and a filtration tank 5, wherein the drop aeration water tank 3 is connected with a raw water inlet pipe 1 and a raw water outlet pipe 4, the filtration tank 5 is connected with an overflow pipe 7 at the top and a filtered water outlet pipe 15 at the bottom, a first filtration device and a second filtration device are arranged in the filtration tank 5, the first filtration device comprises a top cover 6, a first-stage annular filtration wall 8 and a bottom plate 11, the first-stage annular filtration wall 8 is arranged between the top cover 6 and the bottom plate 11, the bottom plate 11 is fixed on the inner wall of the filtration tank 5, a drain port 10 is arranged outside the first-stage annular filtration wall 8 on the bottom plate 11, the raw water outlet pipe 4 passes through the top cover 6 and is communicated with the inside of the first-stage annular filtration wall 8, and the second filtration device comprises a biological filtration layer 12 which is sequentially arranged from top to bottom, A supporting layer 13 and a water distribution pipe 14.

Further, the biological filter layer 12 comprises a modified volcanic biological filter material for removing iron and manganese. The particle size of the modified volcanic ceramsite is 3.2-5. Omm, and the strain is taken from a stably-running ceramsite aeration biological filter for removing iron, manganese and ammonia nitrogen, and is identified as Citrobacter citrobacter freundii, Pseudomonas stutzeri by separation and purification.

Furthermore, the supporting layer 13 is cobblestones, the particle size is 10-20 mm, and the height is 0.2 m.

Further, a backwashing pipe 16 is connected to the filtered water outlet pipe 15, the backwashing pipe 16 is connected to a backwashing water tank 18, a backwashing pump 17 is arranged on the backwashing pipe 16, and flow meters 2 are arranged on the backwashing pipe 16 and the raw water inlet pipe 1.

The utility model discloses a working process: after raw water is pumped out, the raw water respectively enters the drop aeration water tank 3 and the backwashing water tank 18 through the raw water inlet pipe 1 by pressurization, the backwashing pump 17 is started to perform long-time and high-strength backwashing on the filter tank 5 before the raw water filtration is started, a small amount of original filter membranes are flushed, and biological action interference is eliminated. Raw water is aerated by the drop aeration water tank 3, flows into the first-stage annular filter wall 8 of the first filter device, is filtered by the first-stage annular filter wall 8, then enters the second filter device through the upper water gap 10 and the lower water gap 10 of the bottom plate 11, and flows out from the filtered water outlet pipe 15 at the bottom of the filter tank 5 after being filtered by biological contact.

Example 2:

on the basis of embodiment 1, the first filtering device further comprises a second-stage annular filtering wall 9, and the second-stage annular filtering wall 9 is sleeved outside the first-stage annular filtering wall 8 and is arranged between the top cover 6 and the bottom plate 11. The first-stage annular filter wall 8 and the second-stage annular filter wall 9 can adopt different reaction media, can carry out multistage filtration treatment on different pollutants of slightly polluted underground water, and have better treatment effect and safer water quality.

Claims

1. The utility model provides a process units who handles micro-polluted groundwater, includes drop aeration water tank (3) and filters jar (5), connect raw water inlet tube (1) and raw water outlet pipe (4) on drop aeration water tank (3), filter jar (5) top and connect overflow pipe (7), bottom connection drainage outlet pipe (15), its characterized in that: be equipped with first filter equipment and second filter equipment in filtering jar (5), first filter equipment includes top cap (6), one-level annular filter wall (8), bottom plate (11), one-level annular filter wall (8) are located between top cap (6) and bottom plate (11), bottom plate (11) are fixed on filtering jar (5) inner wall, bottom plate (11) last one-level annular filter wall (8) outside is equipped with down mouth of a river (10), raw water outlet pipe (4) pass inside top cap (6) intercommunication one-level annular filter wall (8), second filter equipment includes from last biological filter layer (12), support layer (13) and water distributor (14) down setting gradually.

2. The process installation for treating micro-polluted groundwater according to claim 1, wherein: the first filtering device further comprises a second-stage annular filtering wall, and the second-stage annular filtering wall is sleeved outside the first-stage annular filtering wall and is arranged between the top cover and the bottom plate.

3. The process installation for treating micro-polluted groundwater according to claim 1, wherein: the biological filter layer (12) comprises a modified volcanic biological filter material for removing iron and manganese.

4. The process installation for treating micro-polluted groundwater according to claim 3, wherein: the bearing layer (13) is cobblestones.

5. The process installation for treating micro-polluted groundwater according to claim 1, wherein: the filtering water outlet pipe (15) is connected with a backwashing pipe (16), the backwashing pipe (16) is connected with a backwashing water tank (18), and a backwashing pump (17) is arranged on the backwashing pipe (16).

6. The process installation for treating micro-polluted groundwater according to claim 5, wherein: and flow meters (2) are arranged on the backwashing pipe (16) and the raw water inlet pipe (1).