CN205473254U - Compound sewage treatment plant - Google Patents

Abstract

The utility model discloses a composite sewage treatment device, which belongs to the technical field of sewage treatment and consists of an industrial water collection pool, a pretreatment catalytic tower, a grid adjustment pool, an anaerobic pool, an anoxic pool, a contact aerobic pool, a sedimentation pool, a filter It consists of a front pool, a depth filter bed and a UV disinfection tank. The industrial sump is connected in series with the pretreatment catalytic tower and then connected in parallel with the grid adjustment tank, before and after the grid adjustment tank, anaerobic tank, anoxic tank, contact aerobic tank, sedimentation tank, pre-filtration tank, depth filter bed and ultraviolet disinfection tank Structural combinations in series. The reactor adopts a combination of parallel connection and series connection, which can channel industrial sewage and domestic sewage into the sewage treatment device, improve the treatment efficiency of all sewage, ensure the compliance rate of sewage, and avoid corrosion caused by different components of sewage to the sewage treatment device, etc. Destruction is conducive to the later maintenance of equipment.

Description

A composite sewage treatment device

technical field

The utility model belongs to the technical field of sewage treatment and relates to a sewage treatment device, in particular to a composite sewage treatment device.

Background technique

Domestic sewage is mainly various detergents, sewage, garbage, feces, etc. used in urban life, and most of them are non-toxic inorganic salts. Domestic sewage contains a lot of nitrogen, phosphorus, sulfur, and many pathogenic bacteria. Its characteristics are as follows: Good biodegradability, high concentration of nitrogen and phosphorus, containing pathogens, the overall concentration of pollutants is not very high, and it is easy to meet the standards of COD and BOD. Industrial sewage refers to the waste water and waste liquid produced in the process of industrial production, which contains industrial production materials lost with water, intermediate products, by-products and pollutants produced in the production process. The main characteristics are large discharge, complex composition and serious pollution. It can be seen that the types and quantities of pollution sources contained in domestic sewage and industrial sewage are different. If the same sewage treatment equipment is used for water purification without distinction, on the one hand, the discharge standard cannot be met, and on the other hand, the sewage treatment equipment will be damaged. . Therefore, it is necessary to classify urban domestic sewage and industrial production sewage.

The utility model patent with application number 201520742305.X discloses a composite sewage treatment system, including a grid, a feeding device, a stirring tank, a catalyst storage tank, a biochemical tank, an ultrafiltration treatment tank, an anaerobic tank, and a first sedimentation tank , The second sedimentation tank is connected to the water storage tank, the grid is connected to the feeding device, the feeding device is connected to the stirring tank, the stirring tank is connected to the biochemical tank, the biochemical tank is connected to the ultrafiltration treatment tank, and the ultrafiltration treatment tank is connected to the The anaerobic tank is connected, the anaerobic tank is connected with the first sedimentation tank, the first sedimentation tank is connected with the second sedimentation tank, the second sedimentation tank is connected with the storage tank, and the stirring tank includes the stirring tank body and supporting stirring The tripod of the tank body and the top of the stirring tank are connected with a catalyst feeding pipe, and the stirring tank is connected with the catalyst storage tank through the catalyst feeding pipe. The composite sewage treatment system uses a variety of equipment, and the sewage treatment in sections can improve the treatment efficiency of sewage; however, it has not realized the classification and treatment of different types of sewage, and still faces the low compliance rate of sewage in mixed sewage treatment and the equipment Difficult to maintain.

Utility model content

In order to solve the deficiencies of the prior art, the utility model provides a composite sewage treatment device to realize the classification and standard discharge of industrial sewage and domestic sewage.

The technical scheme of the utility model is as follows:

A composite sewage treatment device consisting of industrial sump, pretreatment catalytic tower, grid adjustment tank, anaerobic tank, anoxic tank, contact aerobic tank, sedimentation tank, pre-filtration tank, depth filter bed and ultraviolet disinfection tank composition. The industrial sump is connected in series with the pretreatment catalytic tower and then connected in parallel with the grid adjustment tank, before and after the grid adjustment tank, anaerobic tank, anoxic tank, contact aerobic tank, sedimentation tank, pre-filtration tank, depth filter bed and ultraviolet disinfection tank Structural combinations in series.

The grid regulating pool is a two-grid structure, the front grid is an artificial grid pool structure, and the rear grid is a sewage regulating pool structure. The domestic sewage is directly transported into the artificial grid pool by the pipeline, and the suspended solids in the domestic sewage are removed through the filtration and removal of the grid. At this time, the organic and inorganic substances suspended by large particles in the water have been basically removed.

The industrial sewage enters the industrial sump through the special collection pipe, and after preliminary precipitation in the industrial sump, the industrial sewage supernatant is pumped into the pretreatment catalytic tower. The industrial sewage is oxidized and separated from heavy metal ions and toxic organic substances in the pretreatment catalytic tower, and then the pretreated industrial sewage flows into the rear grid sewage adjustment tank in the grid adjustment tank, and the domestic waste discharged from the artificial grid tank The sewage is mixed, and the mixed sewage flows into the anaerobic tank together, and participates in the same subsequent sewage treatment process.

An aeration device is installed at the bottom of the pool in contact with the aerobic tank, and an external Roots blower is used as the blowing device. At the same time, a sludge pump is installed at the bottom of the pool to regularly clean the sediment at the bottom of the pool and pump it into the anoxic tank.

A sludge pump is installed at the bottom of the sedimentation tank to recycle and reprocess the sludge in the sedimentation tank. Part of the sludge returns to the anaerobic tank directly, and the remaining sludge is dehydrated by removing the plate and frame sludge.

Sewage flows from the sedimentation tank into the pre-filtration pool, then enters the depth filter bed in batches for biofilm filtration, and finally flows into the ultraviolet disinfection tank, and reaches the sewage discharge standard after comprehensive ultraviolet light disinfection.

Effect and benefit of the present utility model are:

(1) In this composite sewage treatment device, the reactors adopt a combination of parallel and series connection, which can channel industrial sewage and domestic sewage into the sewage treatment device;

(2) The subdivided sewage treatment channels can improve the treatment efficiency of all sewage and ensure the compliance rate of sewage;

(3) Avoid corrosion and other damage caused by sewage with different components to the sewage treatment device, which is conducive to the later maintenance of the equipment.

Description of drawings

Figure 1 Schematic diagram of the structure of the composite sewage treatment device.

In the figure: 1 industrial collection pool; 2 pretreatment catalytic tower; 3 grille adjustment tank; 4 anaerobic tank; 5 anoxic tank; 6 contact aerobic tank; 7 sedimentation tank; 10 UV disinfection tank; 61 aeration device; 62 Roots blower; 71 sludge pump.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

A composite sewage treatment device, shown in Figure 1 of the manual, consists of an industrial sump 1, a pretreatment catalytic tower 2, a grid adjustment tank 3, an anaerobic tank 4, anoxic tank 5, a contact aerobic tank 6, The sedimentation tank 7, the pre-filter pool 8, the depth filter bed 9 and the ultraviolet disinfection tank 10 are composed.

The industrial sump 1 is connected in series with the pretreatment catalytic tower 2, and then connected in parallel with the grid regulating tank 3. The grid adjustment tank 3, the anaerobic tank 4, the anoxic tank 5, the contact aerobic tank 6, the sedimentation tank 7, the pre-filtration tank 8, the depth filter bed 9 and the ultraviolet disinfection tank 10 are sequentially combined in series.

An aeration device 61 is installed at the bottom of the contact aerobic pool 6, and the outside is blown by a Roots blower 62. A sludge pump 71 is installed at the bottom of the settling tank 7 for regular cleaning of the settled sludge.

Example

Industrial sump 1, size: 8.0m×4.0m×4.0m; structure: underground steel concrete structure; equipped equipment: sludge pump, stacked screw sludge dewatering machine, etc.; quantity: 1 set.

Pretreatment catalytic tower 2, size: φ3.0m×6.0m; structure: a complete set of anti-corrosion structure; equipped equipment: oxidant 15kg, catalytic packing; effective volume: 110m ³ ; quantity: 1 set.

Grid adjustment pool 3, size: 8.0m×6.0m×3.0m; structure: underground steel concrete structure; volume: 140m ³ ; quantity: 1 block, 2 grids.

Anaerobic tank 4, size: 4.0m×2.0m×3.0m; structure: underground steel concrete structure; effective volume: 20m ³ ; quantity: 1 seat.

Anoxic pool 5, size: 4.0m×2.0m×3.0m; structure: semi-underground steel concrete structure; effective volume: 20m ³ ; equipped equipment: 1 set of biochemical filler, bottom stirring system; quantity: 1 seat.

Contact aerobic pool 6, size: 8.0m×7.0m×4.0m; structure: semi-underground steel concrete structure; effective volume: 207m ³ ; equipped equipment: microporous aerator and bracket, biochemical filler 207m ³ ; quantity .: 1 seat.

Sedimentation tank 7, size: 8.0m×10m×6.0m; structure: semi-underground steel concrete structure; effective volume: 450m ³ ; equipped equipment: sludge pump, etc.; quantity: 1.

Pre-filtration pool 8, size: 3.0m×4.0m×4.0m; structure: semi-underground steel concrete structure; quantity: 1 seat.

Depth filter bed 9, size: φ3.0m×6.0m; structure: metal tank; equipped equipment: 1 set of filter plate, filter material 88m ³ ; quantity: 1 set.

10 ultraviolet disinfection tanks, size: φ2.0m×4.0m; structure: metal tank body; volume: 30m ³ ; quantity: 1 seat.

The drawings in the manual are only for the structure and schematic diagram of the product, and the actual product structure and size are subject to the inventor's design and production drawings.

The above-mentioned embodiments are only to describe the implementation of the present utility model, but not to limit the concept and scope of the present utility model. Under the premise of not departing from the design concept of the present utility model, various modifications and improvements made by ordinary persons in the art to the technical solution of the present utility model shall fall into the protection scope of the present utility model, and the scope of the present utility model shall be determined by the scope of the present utility model. The claims appended hereto rather than the foregoing description limit.

Claims (4)

1. a composite sewage treatment equipment, is adjusted by industry collecting-tank (1), pretreatment catalytic tower (2), grid Water before joint pond (3), anaerobic pond (4), anoxic pond (5), contact Aerobic Pond (6), sedimentation tank (7), filter Pond (8), degree of depth filter bed (9) and ultraviolet disinfection tank (10) composition, it is characterised in that described industry is catchmented Connect with pretreatment catalytic tower (2) and in parallel with grid regulating reservoir (3) in pond (1), described grid regulating reservoir (3), anaerobic pond (4), anoxic pond (5), contact Aerobic Pond (6), sedimentation tank (7), filter front pond (8), It is sequentially connected in series combination before and after degree of depth filter bed (9) and ultraviolet disinfection tank (10).

A kind of composite sewage treatment equipment the most according to claim 1, it is characterised in that described grid is adjusted Joint pond (3) is two lattice, and front lattice are artificial grid pool structure, and rear lattice are sewage regulating reservoir structure.

A kind of composite sewage treatment equipment the most according to claim 1, it is characterised in that described contact is well Aerator (61) is installed at the bottom of the pond in oxygen pond (6), outside roots blower (62) sets as air blast Standby.

A kind of composite sewage treatment equipment the most according to claim 1, it is characterised in that described sedimentation tank (7) sludge pump (71) is installed at the end.