CN212640221U - Industrial sewage treatment system - Google Patents

Abstract

The embodiment of the utility model discloses an industrial sewage treatment system, the water outlet of an adjusting water tank is connected with the water inlet of an aeration biological filter tank, the water outlet of the aeration biological filter tank is connected with the water inlet of a denitrification biological filter tank, the water outlet of the denitrification biological filter tank is connected with the water inlet of a sand filter tank, the water outlet of the sand filter tank is connected with the water inlet of a discharge water tank, the discharge water tank comprises a standard water outlet and a back flush water outlet, the back flush water outlet is respectively connected with the water inlets of the aeration biological filter tank, the denitrification biological filter tank and the sand filter tank, pollutants in the sewage are respectively removed by the arrangement mode of a multi-stage treatment process, other new pollutants are prevented from being generated in the sequential treatment process, the pollutants can be thoroughly removed by the process of back flush, the discharge standard is reached, and the mixed wastewater with, effectively remove COD, ammonia nitrogen, total nitrogen and other substances in the wastewater and reach the discharge standard.

Description

Industrial sewage treatment system

Technical Field

The embodiment of the utility model relates to a sewage treatment technical field, concretely relates to industrial sewage treatment system.

Background

Industrial sewage mainly takes the treatment of wastewater in chemical industry, metallurgy and the like as a main part, and is relatively complex compared with domestic sewage treatment, because impurity components contained in industrial sewage are relatively complex, the conventional treatment process is difficult to completely treat the sewage or easily generates new impurities.

In the existing industrial sewage treatment, particularly in the treatment of coking wastewater and steel casting wastewater, a mode of a sewage treatment tank is generally adopted for conveniently treating sewage among some associated devices, but in the treatment process, due to the limitation of a manufacturing process, the treatment tank can meet the treatment requirement, but the treatment tank does not have a self-cleaning function, needs to be regularly cleaned, is very complicated, has a fault in the device, is high in maintenance cost, is located on the ground, occupies a large space area, and has incomplete treatment.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides an industrial sewage treatment system,

the problems of the prior art that the sewage treatment is repeated and the treatment cost is high due to the limitation of equipment and sites are solved.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

the utility model discloses an in the first aspect of embodiment, an industrial sewage treatment system is provided, including adjusting pond, bological aerated filter, denitrification biological filter, sand filter and discharge water tank, the delivery port of adjusting the pond is connected the water inlet of bological aerated filter, the water inlet of denitrification biological filter is connected to bological aerated filter's delivery port, the water inlet of sand filter is connected to denitrification biological filter's delivery port, the delivery port of sand filter is connected the water inlet of discharge water tank, the discharge water tank includes standard outlet and back flush outlet, the back flush outlet is connected respectively bological aerated filter, denitrification biological filter and sand filter's water inlet.

Furthermore, detection sensors for ammonia nitrogen ions, COD and suspended matters are arranged in the discharge pond and are correspondingly connected with a plurality of groups of discharge electromagnetic valves arranged at the back washing water outlet.

Furthermore, the system also comprises an ozone tank, wherein a water inlet and a water outlet of the ozone tank are respectively connected with a water outlet of the sand filter tank and a water inlet of the discharge water tank.

Furthermore, the water outlets of the aeration biological filter, the denitrification biological filter and the sand filter are also connected with the water inlet of the adjusting water tank.

Furthermore, the biological aerated filter comprises a main body, wherein a water inlet end and a water outlet end are arranged at the upper part of the main body, a plurality of groups of aeration heads are arranged at the bottom of the main body, and an umbrella-shaped distribution plate is arranged in the main body.

Furthermore, the bottom of the main body is also provided with a gel sinking prevention hole net which is arranged at the bottom side of the aeration head.

According to the utility model discloses an embodiment, the utility model discloses a sewage treatment system has following advantage:

1. in the technical scheme, a water outlet of an adjusting water tank is connected with a water inlet of the biological aerated filter, a water outlet of the biological aerated filter is connected with a water inlet of the denitrification biological filter, a water outlet of the denitrification biological filter is connected with a water inlet of the sand filter, a water outlet of the sand filter is connected with a water inlet of the discharge water tank, the discharge water tank comprises a standard water outlet and a back flush water outlet, the back flush water outlet is respectively connected with the water inlets of the biological aerated filter, the denitrification biological filter and the sand filter, pollutants in sewage are respectively removed through the arrangement mode of a multi-stage treatment process, other new pollutants are prevented from being generated in the sequential treatment process, the pollutants can be thoroughly removed through the back flush process to reach the discharge standard, the complex mixed wastewater has stronger impact load resistance, and COD, COD and the like in the wastewater are, Ammonia nitrogen, total nitrogen and the like, and reaches the discharge standard, the automation degree is high, the overall operation cost is low, the system stability is strong, and the stable operation of the front-end system and the back-end system is ensured;

2. in this scheme, bological aerated filter includes the main part, and the upper portion of main part sets up into water end and play water end, and bological aerated filter's bottom sets up the multiunit aeration head, and the inside of main part is equipped with the flow distribution disc of umbelliform, through setting up the reposition of redundant personnel structure, collects the part at the fluid and begins aeration work promptly, improves the aeration effect to reduce aeration cost, raise the efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

FIG. 1 is a block diagram of a system flow of an industrial wastewater treatment system according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a middle biological aerated filter of an industrial sewage treatment system according to an embodiment of the present invention.

In the figure: 1. adjusting the water tank; 2. an aeration biological filter; 21. a main body; 22. a water inlet end; 23. a water outlet end; 24. an aeration head; 25. a diverter tray; 26. preventing gel from sinking into the mesh; 3. a denitrification biological filter; 4. a sand filter; 5. draining the water tank; 6. an ozone pool.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

As shown in figure 1, it shows the utility model discloses an industrial sewage treatment system that embodiment provided, including adjusting pond 1, biological aerated filter 2, denitrification biological filter 3, sand filter 4 and discharge water pond 5, the water inlet of biological aerated filter 2 is connected to the delivery port of adjusting pond 1, the water inlet of biological aerated filter 3 is connected to the delivery port of biological aerated filter 2, the water inlet of biological aerated filter 4 is connected to the delivery port of biological aerated filter 3, the water inlet of sand filter 4 is connected to the delivery port of sand filter 4, the water inlet of discharge water pond 5 is connected to the delivery port of sand filter 4, discharge water pond 5 includes standard outlet and back flush outlet, biological aerated filter 2 is connected respectively to the back flush outlet, denitrification biological filter 3 and the water inlet of sand filter 4.

In the flow structure of the scheme, the biological aerated filter 2 is used as a first treatment end for sewage treatment, pollutants (such as total nitrogen, ammonia nitrogen ions, COD, BOD and the like) in sewage can be fully contacted and mixed with microorganisms to the maximum extent, the effects of removing ammonia nitrogen, COD and suspended matters are achieved, the pollutants in the sewage are respectively removed through the setting mode of a multi-stage treatment process, other new pollutants are prevented from being generated in the sequential treatment process, the pollutants can be thoroughly removed through the process of backflow backwashing, and the discharge standard is reached.

The denitrification biological filter 3 chooses the process of the postposition denitrification filter of extra carbon source, mainly gets rid of the effect of total nitrogen, COD etc., and 4 main effects of getting rid of the suspended solid in pond are considered to the sand, and the sewage treatment system design of this embodiment is intake: COD 80mg/l NH 4-N10 mg/l TN 35mg/l, design water: COD is 30mg/l NH4-N is 1.5mg/l TN 15mg/l, and the discharge standard of composite water is standard.

In a specific structure, a controller (not shown) is arranged in the master control chamber and is connected with execution electronic elements in the system, such as a detection sensor and a drainage electromagnetic valve, detection sensors of ammonia nitrogen ions, COD (chemical oxygen demand) and suspended matters are arranged in the discharge water tank 5 and correspondingly connected with a plurality of groups of drainage electromagnetic valves arranged at the back washing water outlet, and the detection sensors correspondingly open the corresponding drainage electromagnetic valves of the fluid higher than the discharge value by detecting various indexes in the discharge water tank 5 and setting the discharge value through a foundation, so that the fluid returns to the corresponding treatment tank to form a back washing process.

If the ammonia nitrogen ion detection sensor detects that the concentration of the ammonia nitrogen ions is higher than the discharge standard cone, the controller opens the drainage electromagnetic valve corresponding to the biological aerated filter 2 so as to enable the sewage to flow back and treat, and the discharge standard is reached.

In another embodiment, the system also comprises an ozone tank 6, wherein a water inlet and a water outlet of the ozone tank 6 are respectively connected with a water outlet of the sand filter 4 and a water inlet of the discharge water tank 5, partial ions are not completely treated in the water treatment system, and the wastewater is further subjected to catalytic oxidation by ozone to remove COD, suspended matters, chromaticity and the like, is finally recycled or discharged after reaching the standard, and mainly has the effect of removing COD.

In a further preferred embodiment, the water outlets of the biological aerated filter 2, the biological denitrification filter 3 and the sand filter 4 are also connected with the water inlet of the regulating water tank 1 to form a backwashing drainage process, and the backwashing process can carry out recycling treatment on the wastewater which is not treated completely in the primary water treatment process, so that the purpose of improving the early-stage wastewater treatment capacity and improving the subsequent wastewater treatment efficiency is achieved.

As shown in fig. 2, the biological aerated filter 2 comprises a main body 21, a water inlet end 22 and a water outlet end 23 are arranged at the upper part of the main body 21, a plurality of groups of aeration heads 24 are arranged at the bottom of the main body 21, an umbrella-shaped diversion disc 25 is arranged in the main body 21, in the practical implementation process, the biological aerated filter 2 is of a circular cross-section structure, the aeration heads 24 are uniformly distributed on the circumference of the bottom of the main body 21, a plurality of groups of aeration heads 24 of a concentric circle structure are arranged in the circle formed by the aeration heads 24, fluid entering through the diversion disc 25 can firstly contact with the aeration heads 24 at the circumference for first-step aeration, then the fluid is subjected to aeration treatment through other aeration heads 24, so that the aeration grading is formed.

In the structure, an aeration head 24 can be added on the side wall of the body near the edge of the diverter disc 25 to form radial aeration towards the inside of the body, so that a better aeration effect can be formed.

In a further embodiment, the bottom of the main body 21 is further provided with a gel sinking prevention mesh 26, the gel sinking prevention mesh 26 is arranged at the bottom side of the aeration head 24, the aperture of the gel sinking prevention mesh 26 is selected to be 2mm, the distance below the parallel surface of the aeration head 24 is 30mm, the aeration effect is further improved, and floccules are prevented from being accumulated at the bottom of the tank.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (6)

1. The utility model provides an industrial sewage treatment system, its characterized in that, including regulation pond, bological aerated filter, denitrification biofilter, sand filter and discharge water pond, the delivery port of regulation pond is connected the water inlet of bological aerated filter, the water inlet of denitrification biofilter is connected to the delivery port of bological aerated filter, the water inlet of sand filter is connected to the delivery port of denitrification biofilter, the delivery port of sand filter is connected the water inlet of discharge water pond, the discharge water pond includes standard outlet and back flush outlet, the back flush outlet is connected respectively the water inlet of bological aerated filter, denitrification biofilter and sand filter.

2. The industrial wastewater treatment system according to claim 1, wherein detection sensors for ammonia nitrogen ions, COD and suspended matters are arranged in the discharge water tank and are correspondingly connected with a plurality of groups of drainage electromagnetic valves arranged at the back washing drainage port.

3. The industrial wastewater treatment system of claim 2, further comprising an ozone tank, wherein a water inlet and a water outlet of the ozone tank are respectively connected with a water outlet of the sand filter tank and a water inlet of the drain tank.

4. The industrial wastewater treatment system according to claim 1, wherein the water outlets of the biological aerated filter, the biological denitrification filter and the sand filter are further connected with the water inlet of the regulating water tank.

5. The industrial wastewater treatment system according to any one of claims 1 to 4, wherein the biological aerated filter comprises a main body, a water inlet end and a water outlet end are arranged at the upper part of the main body, a plurality of groups of aeration heads are arranged at the bottom of the main body, and an umbrella-shaped diversion plate is arranged inside the main body.

6. The industrial sewage treatment system of claim 5, wherein the bottom of the main body is further provided with a gel-proof mesh of sink holes, and the gel-proof mesh of sink holes is disposed at the bottom side of the aeration head.

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