CN205473253U - Pharmacy sewage treatment plant - Google Patents

Abstract

The utility model discloses a pharmaceutical sewage treatment device, which belongs to the technical field of water quality purification. Membrane bioreaction) tank, compound biological filter and clear water tank. The pharmaceutical sewage treatment device has a ten-stage serial structure, the first stage is two sludge ponds side by side, the second stage is a high-concentration regulating pond, the third stage is a low-concentration regulating pond, and the fourth stage is two side-by-side sludge ponds. The fifth level is two serial UASB pools, the sixth level is anoxic pool, the seventh level is three serial contact aerobic pools, the eighth level is two serial MBR pools, and the sixth level is an anoxic pool. The ninth level is 2 composite biofilters, and the tenth level is a clear water pool. Multi-stage sewage treatment facilities are used in series to improve the purification rate of pharmaceutical sewage; the biogas generated in the sewage treatment process is used for power generation, comprehensive utilization, energy saving and environmental protection.

Description

A pharmaceutical sewage treatment device

technical field

The utility model belongs to the technical field of water quality purification and relates to a sewage treatment device, in particular to a pharmaceutical sewage treatment device.

Background technique

The pharmaceutical industry produces a large amount of harmful wastewater in the process of product production. Its components are complex. The COD is as high as tens of thousands or even hundreds of thousands of mg/l, and the chroma is as high as several thousand times. The use of traditional processing methods cannot meet the relevant national discharge standards and will affect the surrounding environment. cause serious pollution. With the progress of society and the enhancement of people's environmental awareness, government departments have legislated to limit the direct discharge of harmful wastewater. For this reason, domestic pharmaceutical companies continue to study pharmaceutical wastewater treatment technologies. Sewage treatment devices such as sedimentation and biological oxidation still cannot achieve the desired effect, and the use of some traditional processes can no longer meet the increasing environmental problems.

The utility model patent with the application number 201120394453.9 discloses a pharmaceutical factory sewage treatment device, including the first and second sedimentation tanks, aerobic tanks, clarification tanks, fans and pumps. The device is equipped with first and second two-stage sedimentation tanks . A sludge return pipe is provided between the second sedimentation tank and the aerobic tank, and the first sedimentation tank is sequentially connected with the aerobic tank and the second sedimentation tank through pipelines. The utility model patent with the application number 201320467268.7 discloses a biopharmaceutical factory sewage treatment device, which consists of a water inlet, a dosing port, a reaction box, a steam coil, a pressure gauge, a thermometer, a water outlet, and a sludge discharge system. The water inlet is connected to the dosing port, and then it flows into the main reaction box. A steam coil is added in the reaction box to increase the temperature of the sewage treatment. After the sewage is treated with high-temperature chemical dosing and catalytic oxidation in the reaction box, it is discharged into the cooling chamber through the outlet. pool, and enter the biochemical treatment system after cooling. The two pharmaceutical sewage treatment devices disclosed above have their own characteristics, but neither has wide applicability. The former is suitable for pharmaceutical sewage with more precipitated impurities, and the latter is more suitable for pharmaceutical sewage with less sediment. Therefore, it is necessary to design a pharmaceutical wastewater treatment device with wider applicability.

Utility model content

The utility model provides a pharmaceutical sewage treatment device to solve the deficiencies of the prior art, so as to realize the up-to-standard discharge of pharmaceutical sewage.

The technical scheme of the utility model is as follows:

A pharmaceutical sewage treatment device, consisting of a sludge tank, a high-concentration regulating tank, a low-concentration regulating tank, a pre-acidification tank, a USAB tank, an anoxic tank, a contact aerobic tank, an MBR (membrane bioreaction) tank, and a composite biofilter Composed of clear water pools. The pharmaceutical sewage treatment device has a ten-stage serial structure, the first stage is two sludge ponds side by side, the second stage is a high-concentration regulating pond, the third stage is a low-concentration regulating pond, and the fourth stage is two side-by-side sludge ponds. The fifth level is two serial UASB pools, the sixth level is anoxic pool, the seventh level is three serial contact aerobic pools, the eighth level is two serial MBR pools, and the sixth level is an anoxic pool. The ninth level is 2 composite biofilters, and the tenth level is a clear water pool.

According to its concentration, the pharmaceutical sewage flows into the high concentration adjustment pool and the low concentration adjustment pool through the pipeline system respectively, and then the high concentration and low concentration sewage are combined, and the water quality is neutralized and the water volume is adjusted in the adjustment pool. After passing through the PH automatic adjustment control system, adjust the water quality PH to 7-8, and then enter the pre-acidification tank for pre-acidification treatment. The influent water of the adjustment tank and the return water of the UASB reactor are fully mixed, diluted and neutralized in the pre-acidification tank, and then enter the UASB for anaerobic vulcanization reaction.

The UASB pool consists of three parts: a sludge reaction zone, a gas-liquid-solid three-phase separator and an air chamber. The anaerobic reaction process in the UASB reactor includes hydrolysis, acidification, gas production and other processes. A large amount of anaerobic sludge remains in the sludge reaction area, and the pharmaceutical sewage flows from the bottom of the anaerobic sludge bed to mix and contact with the anaerobic sludge. The microorganisms in the anaerobic sludge decompose the organic matter in the pharmaceutical sewage and convert it into biogas for release. The biogas is continuously released in the form of tiny bubbles and merged during the rising process to form larger volume bubbles and enter the gas-liquid-solid three-phase separator. After the biogas touches the reflector at the lower part of the separator, it is deflected around the reflector and then passes through The water layer enters the air chamber. The biogas concentrated in the gas chamber can be led out through the conduit, and the biogas can be used for power generation to recover electric energy for comprehensive utilization.

The pharmaceutical sewage flows into the anoxic pool through the UASB pool to further degrade the organic matter in it, oxidize the macromolecular complex chain organic matter into small molecular single chain organic matter, and improve the biodegradability of the sewage. The built-in biological filler in the anoxic tank can greatly reduce the loss rate of activated sludge.

The pharmaceutical sewage flows into the contact aerobic tank through the anoxic tank for aeration and aerobic reaction. Due to the built-in high-efficiency biological filler in the contact aerobic tank, the biological activity in the tank is extremely high, and a large number of biofilms are attached by microorganisms on the surface of the filler, and the sewage is exchanged and biochemically treated, so that the pollution index of the sewage is greatly reduced, and the polluted organic matter contained in it is destroyed by microorganisms. Basic digestion.

The pharmaceutical sewage flows into the MBR pool through the contact aerobic tank, and undergoes ultrafiltration membrane biochemical reactions. In the MBR pool, more efficient biochemical reactions are carried out to further remove pollutant components, and the membrane separation technology is used for solid-liquid separation.

The pharmaceutical sewage flows into the composite biofilter through the MBR pool, which can complete the anaerobic biological treatment and aerobic biological treatment and filtration in the same pool. After multi-stage purification, the degradation of organic matter, nitrogen and phosphorus removal, and Filtering and many other processing. After the sewage is treated, the water quality is improved, reaching the discharge standard, flowing into the clean water pool, and flowing out through the discharge port of the clean water pool.

Part of the sludge from the pre-acidification tank, anoxic tank and MBR tank enters the sludge tank, and is lifted by the diaphragm pump into the screw-type sludge dewatering machine for dehydration. The dehydrated and dried sludge is harmlessly treated, and the filtrate is returned to the conditioning pool to prevent secondary pollution.

Effect and benefit of the present utility model are:

(1) Multi-stage sewage treatment facilities are used in series to improve the purification rate of pharmaceutical sewage, and the sewage treatment effect is good;

(2) Decompose toxic and harmful substances in pharmaceutical sewage by biological contact method, reduce the use of chemical substances, and avoid secondary environmental hazards;

(3) Utilize the biogas generated in the sewage treatment process to generate electricity, which is energy-saving and environmentally friendly;

(4) Once put into long-term use, it is easy to maintain and has a wide range of applications.

Description of drawings

Figure 1 Schematic diagram of the pharmaceutical wastewater treatment plant.

Fig. 2 Schematic diagram of the structure of the pharmaceutical wastewater treatment device.

In the figure: 1 sludge pond; 2 high concentration regulating pond; 3 low concentration regulating pond; 4 pre-acidification pond; 5USAB pond; 6 anoxic pond; 7 contact aerobic pond; 8MBR pond; pool; 11 outfalls.

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.

An anaerobic and aerobic multi-stage wetland sewage treatment device, as shown in the accompanying drawings 1-2 of the specification, consists of a sludge tank 1, a high-concentration adjustment tank 2, a low-concentration adjustment tank 3, a pre-acidification tank 4, and a USAB tank 5 , anoxic pool 6, contact aerobic pool 7, MBR pool 8, composite biofilter 9 and clear water pool 10.

Example

Sludge tank 1, size: 8.0m×3.0m×3.0m; structure: underground steel concrete structure; equipped equipment: sludge pump, stacked screw sludge dehydrator, etc.; quantity: 1 block, 2 compartments.

High concentration regulating pool 2, size: 8.0m×4.0m×3.0m; structure: underground steel concrete structure; volume: 100m ³ ; quantity: 1 seat.

Low concentration regulating pool 3, size: 8.0m×6.0m×3.0m; structure: underground steel concrete structure; volume: 140m ³ ; quantity: 1 seat.

Pre-acidification pool 4, size: 8.0m×2.0m×6.0m; structure: underground steel concrete structure; effective volume: 91m ³ ; quantity: 1 block, 2 grids.

USAB pool 5, size: 8.0m×12.0m×6.0m; structure: semi-underground steel concrete structure; effective volume: 528m3; equipped equipment: filler, three-phase separator, water distribution system, etc.; quantity: 1 block and 2 cells.

Anoxic pool 6, size: 8.0m×3.0m×4.0m; structure: semi-underground steel concrete structure; effective volume: 89m3; equipped equipment: 1 set of biochemical filler, bottom stirring system; quantity: 1 seat.

Contact aerobic pool 7, size: 8.0m×7.0m×4.0m; structure: semi-underground steel concrete structure; effective volume: 207m ³ ; equipment: 156 sets of microporous aerators and brackets, model TK- P-215, biochemical filler 207m ³ ; Quantity: 1 block, 3 grids.

MBR pool 8, size: 8.0m×4.0m×4.0m; structure: semi-underground steel concrete structure; effective volume: 118m ³ ; equipment: 60 sets of microporous aerators and brackets, model TK-P- 215, biochemical filler 118m ³ , 1 set of MBR film and formwork; quantity: 1 seat 2 grids.

Composite biological filter 9, size: 8.0m×4.0m×4.0m; structure: semi-underground steel concrete structure; equipped equipment: 1 set of filter plate, filter material 88m ³ ; quantity: 1 block, 2 grids.

And clean water pool 10, size: 4.0m×4.0m×2.0m; structure: underground steel concrete structure; 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 kind of pharmaceutical sewage treatment device, by sludge tank (1), high concentration regulating pond (2), low concentration regulating pond (3), pre-acidification pond (4), USAB pond (5), anoxic pond ( 6), composed of a contact aerobic pool (7), an MBR pool (8), a composite biological filter (9) and a clear water pool (10), it is characterized in that the pharmaceutical sewage treatment device is a ten-stage serial structure, the first The first stage is two sludge ponds (1) side by side, the second stage is a high-concentration regulating pond (2), the third stage is a low-concentration regulating pond (3), and the fourth stage is two pre-acidification ponds ( 4), the fifth level is 2 serial UASB pools (5), the sixth level is anoxic pools (6), the seventh level is 3 serial contact aerobic pools (7), and the eighth level is 2 There are two serial MBR pools (8), the ninth level is two composite biofilters (9), and the tenth level is a clear water pool (10). 2. A pharmaceutical sewage treatment device according to claim 1, characterized in that the UASB pool (5) consists of a sludge reaction zone, a gas-liquid-solid three-phase separator and an air chamber. 3. A pharmaceutical sewage treatment device according to claim 1, characterized in that, the UASB pool (5) collects the biogas generated in the sewage treatment process, and uses the biogas to generate electricity and recover electric energy for comprehensive utilization. 4. a kind of pharmaceutical sewage treatment device according to claim 1, is characterized in that, part sludge enters sludge pond ( 1) It is lifted by the diaphragm pump into the stacked screw sludge dewatering machine for dehydration, and the dehydrated and dried sludge is harmlessly treated, and the filtrate is returned to the regulating tank.