CN213012481U - Industrial production wastewater treatment system - Google Patents

Abstract

The utility model discloses a treatment system for industrial production wastewater, which comprises a collecting and adjusting tank, a coagulating sedimentation tank, an intermediate tank, a biochemical treatment system, a pH adjusting tank, a final sedimentation tank, a sand filter tank and a clean water tank which are connected in sequence; the biochemical treatment system comprises an anaerobic tank, a facultative tank and an aerobic tank which are sequentially connected, and biological fillers are arranged in the anaerobic tank, the facultative tank and the aerobic tank. The utility model discloses a processing system of industrial production waste water concentrates collection earlier in collecting the equalizing basin with industrial waste water, collect the equalizing basin through saving waste water regulating pondage, balanced quality of water to guarantee follow-up processing system's stability, then waste water passes through coagulating sedimentation tank, intermediate tank, biochemical treatment system, pH equalizing basin, final sedimentation tank and sand filtering pond in proper order, reach emission standard after handling and get into the clean water basin and store, can be used to reuse or directly discharge, more accord with the environmental protection requirement.

Description

Industrial production wastewater treatment system

Technical Field

The utility model relates to a relevant technical field of sewage treatment, concretely relates to industrial waste water's processing system.

Background

The industrial wastewater refers to wastewater and waste liquid generated in the industrial production process, and contains industrial production materials, intermediate products, byproducts and pollutants generated in the production process, which are lost along with water. Many industrial production waste water contains pollutants such as organic pollutants, heavy metal ions and the like, indexes such as COD, BOD, SS and the like exceed standards, if the industrial production waste water is directly discharged without being treated, the industrial production waste water can seriously pollute the environment and has great harm to human health, and if a single treatment method is used, the waste water treatment effect is poor, and the environmental protection requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem that prior art exists, the utility model provides a processing system of industrial waste water carries out effective treatment to industrial waste water, makes industrial waste water reach emission standard to the reduction reaches the requirement of environmental protection to the pollution of environment.

In order to achieve the above object, the present invention provides the following technical solutions:

a treatment system for industrial production wastewater comprises a collection regulating tank, a coagulating sedimentation tank, an intermediate tank, a biochemical treatment system, a pH regulating tank, a final sedimentation tank, a sand filter tank and a clean water tank which are connected in sequence; the biochemical treatment system comprises an anaerobic tank, a facultative tank and an aerobic tank which are sequentially connected, and biological fillers are arranged in the anaerobic tank, the facultative tank and the aerobic tank.

Furthermore, a hanging frame is arranged in the middle of the anaerobic tank, the biological filler is a rope type biological filler, and the biological filler is fixedly arranged on the hanging frame.

Furthermore, on the upper frame, the distance between every two adjacent steel pipes is 150-200mm, and the steel pipes of the lower frame are parallel to and in one-to-one correspondence with the steel pipes of the upper frame.

Furthermore, a zeolite layer is arranged in the middle of the sand filter, the lower part of the sand filter is connected with the final sedimentation tank, and the upper part of the sand filter is connected with the clean water tank.

Further, the coagulating sedimentation tank comprises a first-stage coagulating sedimentation tank and a second-stage coagulating sedimentation tank, the first-stage coagulating sedimentation tank comprises a first-stage coagulating area and a first-stage sedimentation area, the second-stage coagulating sedimentation tank comprises a second-stage coagulating area and a second-stage sedimentation area, and the first-stage sedimentation area and the second-stage sedimentation area are inclined tube sedimentation tanks.

Furthermore, perforated aeration pipes are arranged in the facultative tank and the aerobic tank, and air inlet ends of the perforated aeration pipes are connected with fans.

Further, the perforated aeration pipe is arranged between the biological filler and the water inlet.

Furthermore, the coagulating sedimentation tank and the final sedimentation tank are respectively connected with the sludge concentration tank, the sludge concentration tank is connected with the plate-and-frame filter press, and the sludge concentration tank and the plate-and-frame filter press are respectively connected with the collection regulating tank.

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

the utility model provides a processing system of industrial waste water, its theory of operation lies in, collects industrial waste water earlier and concentrates the collection in collecting the equalizing basin, collects the equalizing basin and passes through storage waste water regulating pondage, balanced quality of water to guarantee follow-up processing system's stability. Then the wastewater enters a coagulating sedimentation tank for chemical sedimentation treatment to remove heavy metal ions contained in the wastewater, pollutants form sludge and sediment under the action of a medicament, and supernatant enters an intermediate tank. The wastewater in the intermediate tank enters a subsequent biochemical treatment system, organic pollutants in the water are removed through microorganisms attached to the biological filler, and then the wastewater enters a pH adjusting tank and then enters a final sedimentation tank. In the final sedimentation tank, activated sludge generated by the biochemical reaction is settled under the action of gravity, so that mud and water are separated, supernatant enters the sand filter, flocculate and suspended particles contained in the wastewater are adsorbed when the wastewater passes through the sand filter, the purpose of purifying the water quality again is achieved, and finally the wastewater reaching the standard enters the clean water tank. The treatment system can effectively treat industrial production wastewater, and the production wastewater treated by the treatment system meets the environmental protection requirement and can be recycled or directly discharged.

Drawings

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

FIG. 2 is a schematic structural diagram of the connection between the biological filler and the suspension frame in the anaerobic tank;

FIG. 3 is a schematic view of the internal structure of the aerobic tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the treatment system for industrial wastewater comprises a collection regulating reservoir 1, a coagulation sedimentation reservoir 2, an intermediate reservoir 3, a biochemical treatment system 4, a pH regulating reservoir 5, a final sedimentation reservoir 6, a sand filter 7 and a clean water reservoir 8 which are connected in sequence, wherein the biochemical treatment system comprises an anaerobic tank 41, a facultative tank 42 and an aerobic tank 43 which are connected in sequence, and biological fillers are arranged in the anaerobic tank 41, the facultative tank 42 and the aerobic tank 43. The industrial production wastewater is collected in the collecting and adjusting tank 1 in a centralized manner, and the collecting and adjusting tank 1 regulates the water quantity and balances the water quality by storing the wastewater so as to ensure the stability of a subsequent treatment system. Then the wastewater enters a coagulating sedimentation tank 2 for chemical sedimentation treatment to remove heavy metal ions contained in the wastewater, pollutants form sludge and precipitate under the action of a medicament, and supernatant enters an intermediate tank 3. The wastewater in the intermediate tank 3 enters a subsequent biochemical treatment system 4, organic pollutants in the wastewater are removed through microorganisms attached to the biological filler, and then the wastewater enters a pH adjusting tank 5 and then enters a final sedimentation tank 6. In the final sedimentation tank 6, activated sludge generated by the biochemical reaction is settled under the action of gravity, so that mud and water are separated, supernatant enters the sand filter 7, flocculate and suspended particles contained in the wastewater are adsorbed when the wastewater passes through the sand filter 7, the purpose of purifying the water quality again is achieved, and finally the wastewater reaching the standard enters the clean water tank 8. The treatment system can effectively treat industrial production wastewater, and the production wastewater treated by the treatment system meets the environmental protection requirement and can be recycled or directly discharged.

In the improved treatment scheme, the coagulating sedimentation tank 2 and the final sedimentation tank 6 can be respectively connected with a sludge concentration tank 9, the sludge concentration tank 9 is connected with a plate-and-frame filter press 10, and the sludge concentration tank 9 and the plate-and-frame filter press 10 are respectively connected with the collection regulating tank 1. The sludge concentration tank 9 can be used for collecting the precipitate treated by the coagulating sedimentation tank 2, then the precipitate is transferred into the plate-and-frame filter press 10, and the plate-and-frame filter press 10 compresses the precipitate into a sludge cake.

The production wastewater sequentially passes through a collecting and adjusting tank 1, a coagulating sedimentation tank 2, an intermediate water tank 3, an anaerobic tank 41, a facultative tank 42, an aerobic tank 43, a pH adjusting tank 5, a final sedimentation tank 6 and a sand filter tank 7 for treatment, the treated production wastewater reaches the discharge standard and is stored in a clean water tank 8, water in the clean water tank 8 can be recycled or directly discharged, in the further improvement scheme, precipitates in the coagulating sedimentation tank 2 and the final sedimentation tank 6 can enter a sludge concentration tank 9 and enter a plate-and-frame filter press 10 through the sludge concentration tank 9, the plate-and-frame filter press 10 performs filter pressing on the precipitates to form sludge cakes, and the sludge cakes can be packed and transported outside for treatment; supernatant liquor in the sludge concentration tank 9 and filtrate in the plate-and-frame filter press 10 can enter the collection regulating tank 1 for circular treatment, so that the wastewater recycling rate can be increased.

In the treatment system, the coagulation sedimentation tank 2 comprises a primary coagulation sedimentation tank and a secondary coagulation sedimentation tank, so that secondary coagulation and sedimentation treatment can be performed on production wastewater, and pollutants in the production wastewater are more fully treated; the primary coagulation sedimentation tank comprises a primary coagulation area and a primary sedimentation area, the secondary coagulation sedimentation tank comprises a secondary coagulation area and a secondary sedimentation area, and the primary sedimentation area and the secondary sedimentation area are inclined tube sedimentation tanks; the zeolite layer is arranged in the sand filter 7, the zeolite layer can further adsorb and filter the flocculation and the precipitate in the production wastewater, the zeolite layer is arranged in the middle of the sand filter 7, the lower part of the sand filter 7 is connected with the final sedimentation tank 6, and the upper part of the sand filter 7 is connected with the clean water tank 8, so that the flocculate and the precipitate filtered by the zeolite layer are directly precipitated to the bottom of the sand filter 7, and the wastewater adsorbed and filtered by the zeolite layer is cleaner and has no precipitate or flocculate.

In order to make the biological filler fully contact and react with the production wastewater, the biological fillers in the anaerobic tank 41, the facultative tank 42 and the aerobic tank 43 are respectively arranged in the middle parts of the anaerobic tank 41, the facultative tank 42 and the aerobic tank 43, the middle tank 3 is connected with the lower part of the anaerobic tank 41, the upper part of the anaerobic tank 41 is connected with the lower part of the facultative tank 42, the upper part of the facultative tank 42 is connected with the lower part of the aerobic tank 43, and the upper part of the aerobic tank 43 is connected with the pH adjusting tank 5. More specifically, as shown in fig. 2, a suspension frame 411 is fixedly disposed in the middle of the anaerobic tank 41, the biological filler is a rope-type biological filler 412, the suspension frame 411 includes an upper frame and a lower frame (not labeled in the figure), the planes of the upper frame and the lower frame are respectively perpendicular to the radial direction of the anaerobic tank 41, and the upper frame and the lower frame are respectively fixed on the inner side wall of the anaerobic tank 41; the upper frame and the lower frame respectively comprise steel pipes which are arranged in parallel at intervals, the distance between every two adjacent steel pipes on the upper frame is 150-200mm, the steel pipes on the lower frame are parallel to and in one-to-one correspondence with the steel pipes of the upper frame, namely, the distance between every two adjacent steel pipes on the lower frame is 150-200mm, the rope-type biological packing 412 is fixedly wound between the upper frame and the lower frame (namely, two ends of the rope-type biological packing are respectively tied on the upper frame and the lower frame), and the distance between the steel pipes enables the distance between the rope-type biological packing 412 to be 150-200mm, so that the biological packing is fully contacted with and reacts with the production wastewater.

Similarly, in order to make the biological filler in the facultative tank 42 and the aerobic tank 43 sufficiently contact and react with the production wastewater, the structure of the biological filler in the facultative tank 42 and the aerobic tank 43 is the same as that of the biological filler in the anaerobic tank 41, and in order to maintain the activity of the biological filler in the facultative tank 42 and the aerobic tank 43 and maintain the good reaction capability of the biological filler, perforated aeration pipes may be provided in the facultative tank 42 and the aerobic tank 43, respectively, and the perforated aeration pipes may be provided below the biological filler. To specifically explain the internal structure of the aerobic tank 43, as shown in fig. 3, a suspension frame 431 is disposed in the middle of the aerobic tank 43, the biological filler is a rope-type biological filler 432, the suspension frame 431 includes an upper frame and a lower frame (not labeled in the figure), the planes of the upper frame and the lower frame are respectively perpendicular to the height direction of the aerobic tank 43, and the upper frame and the lower frame are respectively fixed on the inner side wall of the aerobic tank 43; the upper frame and the lower frame respectively comprise steel pipes which are arranged in parallel at intervals, the distance between every two adjacent steel pipes on the upper frame is 150-200mm, the steel pipes on the lower frame are parallel to and in one-to-one correspondence with the steel pipes of the upper frame, namely, the distance between every two adjacent steel pipes on the lower frame is also 150-200 mm; in order to facilitate the biological filler to fully contact the air, the perforated aeration pipe 433 can be arranged between the water inlet of the aerobic tank 43 and the biological filler.

The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all the solutions should be covered in the scope of the claims of the present invention.

Claims (9)

1. A treatment system for industrial production wastewater is characterized by comprising a collection regulating tank, a coagulating sedimentation tank, an intermediate tank, a biochemical treatment system, a pH regulating tank, a final sedimentation tank, a sand filter tank and a clean water tank which are connected in sequence; the biochemical treatment system comprises an anaerobic tank, a facultative tank and an aerobic tank which are sequentially connected, and biological fillers are arranged in the anaerobic tank, the facultative tank and the aerobic tank.

2. The industrial wastewater treatment system according to claim 1, wherein a suspension frame is provided in the middle of the anaerobic tank, the biological filler is a rope-type biological filler, and the biological filler is fixedly provided on the suspension frame.

3. The industrial process wastewater treatment system according to claim 2, wherein the suspension frame comprises an upper frame and a lower frame, each of which comprises steel pipes arranged in parallel at intervals.

4. The industrial wastewater treatment system according to claim 3, wherein the distance between every two adjacent steel pipes on the upper frame is 150-200mm, and the steel pipes of the lower frame are parallel to and in one-to-one correspondence with the steel pipes of the upper frame.

5. The industrial wastewater treatment system according to any one of claims 1 to 4, wherein a zeolite layer is provided in the middle of the sand filter, the lower part of the sand filter is connected to the final sedimentation tank, and the upper part of the sand filter is connected to the clean water tank.

6. The industrial wastewater treatment system according to any one of claims 1 to 4, wherein the coagulation sedimentation tank comprises a primary coagulation sedimentation tank and a secondary coagulation sedimentation tank, the primary coagulation sedimentation tank comprises a primary coagulation zone and a primary sedimentation zone, the secondary coagulation sedimentation tank comprises a secondary coagulation zone and a secondary sedimentation zone, and the primary sedimentation zone and the secondary sedimentation zone are both inclined tube sedimentation tanks.

7. The system for treating industrial wastewater according to any one of claims 1 to 4, wherein perforated aeration pipes are provided inside the facultative tank and the aerobic tank, and a blower is connected to the inlet ends of the perforated aeration pipes.

8. The industrial wastewater treatment system of claim 7, wherein the perforated aeration pipe is disposed between the biological packing and the water inlet.

9. The industrial wastewater treatment system according to any one of claims 1 to 4, wherein the coagulation sedimentation tank and the final sedimentation tank are further connected to a sludge concentration tank, respectively, the sludge concentration tank is connected to a plate and frame filter press, and the sludge concentration tank and the plate and frame filter press are connected to a collection and adjustment tank, respectively.

Images