CN216918937U

CN216918937U - Viscera draws type pharmacy effluent disposal system

Info

Publication number: CN216918937U
Application number: CN202220224240.XU
Authority: CN
Inventors: 邓家清; 杨航; 陈燕
Original assignee: Sichuan Hope Environmental Engineering Technology Co ltd
Current assignee: Sichuan Hope Environmental Engineering Technology Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-07-08
Anticipated expiration: 2032-01-19

Abstract

The utility model discloses an internal organ extraction pharmaceutical wastewater treatment system which comprises a sludge tank, a filter pressing system, a grid tank, an adjusting tank, an MABR anaerobic tank, a primary A/O biochemical tank, an intermediate sedimentation tank, a secondary A/O biochemical tank, a secondary sedimentation tank and a secondary dephosphorization sedimentation tank which are sequentially communicated, wherein backflow channels are respectively arranged between the intermediate sedimentation tank and the primary A/O biochemical tank and between the secondary sedimentation tank and the secondary A/O biochemical tank, sludge discharge ports of the MABR anaerobic tank, the intermediate sedimentation tank, the secondary sedimentation tank and the secondary dephosphorization sedimentation tank are all communicated with the sludge tank, a sludge discharge port of the sludge tank is communicated with a feed port of the filter pressing system, and a filtrate outlet of the filter pressing system and a supernatant outlet of the sludge tank are all communicated with the adjusting tank. The utility model has stable operation, simple operation, convenient management and good treatment effect, and has higher functions of deslagging, oil separation, denitrification and dephosphorization while removing organic matters.

Description

Viscera draw type pharmacy effluent disposal system

Technical Field

The utility model belongs to the technical field of sewage treatment, and particularly relates to a viscera extraction pharmaceutical wastewater treatment system.

Background

The waste water produced by viscera extraction pharmaceutical enterprises mainly comprises pancreas powder production mother liquor, gastric enzyme production mother liquor, chymotrypsin ultrafiltration effluent, protein filter pressing effluent, cleaning wastewater of various workshops and domestic sewage, and has the characteristics of high concentration, high oil content, high ammonia nitrogen content and high phosphorus content.

In the prior art, the visceral extraction pharmaceutical wastewater treatment system is not considered perfectly, a grid pond is generally arranged in a pretreatment stage, larger solid suspended matters in wastewater are intercepted and removed, and facilities for pretreatment of high-concentration mother liquor are not considered mostly, so that the normal operation of subsequent treatment facilities is seriously influenced, and the treatment effect is influenced; in addition, the viscera extraction pharmaceutical wastewater belongs to high ammonia nitrogen and high phosphorus wastewater, and most of the biochemical processes adopted at present are difficult to ensure that the effluent completely reaches the standard.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a viscera extraction pharmaceutical wastewater treatment system, which can effectively remove organic matters and has higher functions of slag removal, oil separation, nitrogen removal and phosphorus removal, aiming at the defects of the prior art.

The technical scheme adopted by the utility model is as follows: a viscera extraction pharmaceutical wastewater treatment system comprises a sludge tank, a filter pressing system, and a grid tank, a regulating tank, an MABR anaerobic tank, a primary A/O biochemical tank, an intermediate sedimentation tank, a secondary A/O biochemical tank, a secondary sedimentation tank and a secondary dephosphorization sedimentation tank which are sequentially communicated, a backflow channel is arranged between the intermediate sedimentation tank and the first-stage A/O biochemical tank, a backflow channel is arranged between the secondary sedimentation tank and the second-stage A/O biochemical tank, the sludge discharge ports of the MABR anaerobic tank, the middle sedimentation tank, the secondary sedimentation tank and the secondary dephosphorization sedimentation tank are all communicated with the sludge tank, the sludge discharge hole of the sludge tank is communicated with the feed hole of the filter pressing system, the filtrate outlet of the filter pressing system and the supernatant outlet of the sludge tank are both communicated with the regulating tank, the water inlet of the grid pond is an inlet of wastewater to be treated, and the water outlet of the secondary dephosphorization sedimentation pond is a standard wastewater discharge port.

Preferably, the grid pool adopts a mechanical fine grid structure, and the distance between grid bars is 5 mm.

Preferably, the reactor in the MABR anaerobic tank adopts an anaerobic baffled reactor with a built-in biological filler.

Preferably, the secondary sedimentation tank and the middle sedimentation tank are internally provided with sludge reflux pumps, and the outlets of the sludge reflux pumps are communicated with the corresponding reflux channels.

Preferably, the primary A/O biochemical tank and the secondary A/O biochemical tank both adopt a three-section anoxic and aerobic treatment structure, and a stirring mechanism is arranged in each three-section anoxic zone.

Preferably, a stirring mechanism is arranged in the two-stage dephosphorization sedimentation tank, and two different dephosphorization agents are added for chemical dephosphorization.

Preferably, a stirring mechanism is arranged in the sludge tank.

The utility model has stable operation, simple operation, convenient management and good treatment effect, has higher functions of deslagging, oil separation, denitrification and dephosphorization while removing organic matters, and the effluent can reach the discharge standard of table 2 of the discharge standard of extracted pharmaceutical industry water pollutants (GB 21905-2008).

Drawings

FIG. 1 is a block diagram of a processing system of the present invention.

Detailed Description

The utility model will be described in further detail with reference to the following drawings and specific embodiments.

As shown in figure 1, the viscera extraction pharmaceutical wastewater treatment system provided by the utility model comprises a sludge tank, a filter pressing system, a grid tank, a regulating tank, an MABR anaerobic tank, a primary A/O biochemical tank, an intermediate sedimentation tank, a secondary A/O biochemical tank, a secondary sedimentation tank and a secondary dephosphorization sedimentation tank, wherein wastewater to be treated enters a wastewater pipeline, the wastewater pipeline is communicated with a water inlet of the grid tank, a water outlet of the grid tank is communicated with a water inlet of the regulating tank, a water outlet of the regulating tank is communicated with a water inlet of the MABR anaerobic tank, a water outlet of the MABR anaerobic tank is communicated with a water inlet of the primary A/O biochemical tank, a water outlet of the primary A/O biochemical tank is communicated with a water inlet of the intermediate sedimentation tank, a water outlet of the intermediate sedimentation tank is communicated with a water inlet of the secondary A/O biochemical tank, a water outlet of the secondary A/O biochemical tank is communicated with a water inlet of the secondary sedimentation tank, the water outlet of the secondary sedimentation tank is communicated with the water inlet of the secondary dephosphorization sedimentation tank, and the water outlet of the secondary dephosphorization sedimentation tank is a standard wastewater discharge port;

the sludge reflux pump in the intermediate sedimentation tank is communicated with the primary A/O biochemical tank through a reflux channel to realize biochemical sludge reflux; a sludge reflux pump is also arranged in the secondary sedimentation tank, and the sludge reflux pump in the secondary sedimentation tank is communicated with the secondary A/O biochemical tank through a reflux channel to realize biochemical sludge reflux;

the MABR anaerobism pond, middle sedimentation tank, secondary sedimentation tank and second grade dephosphorization sedimentation tank's mud discharge port all accesss to the sludge impoundment, and the sludge impoundment is built-in to have mechanical type rabbling mechanism, the mud discharge gate in sludge impoundment and the feed inlet intercommunication of filter-pressing system, the filtrating export of filter-pressing system and the supernatant export in sludge impoundment all access to the equalizing basin, carry out the regulation back of quality of water by the equalizing basin, the control water yield gets into in the MABR anaerobism pond once more.

The grid pond adopts a mechanical fine grid structure, the distance between grid bars is 5mm, and the large garbage in the wastewater can be conveniently salvaged; the reactor in the MABR anaerobic tank adopts an anaerobic baffle reactor with a built-in biological filler; the primary A/O biochemical pool and the secondary A/O biochemical pool both adopt a three-section anoxic and aerobic treatment structure, and stirring mechanisms are arranged in three anoxic zones; and a stirring mechanism is arranged in the two-stage dephosphorization sedimentation tank, and two different dephosphorization reagents are added for chemical dephosphorization.

The working process of the utility model is as follows:

the high-concentration mother liquor wastewater is pretreated and then enters a grid tank together with other production wastewater, large garbage in the wastewater is salvaged, then enters an adjusting tank, water quality and water quantity are uniformly adjusted, the mother liquor wastewater is pumped into an MABR anaerobic tank by a pump for anaerobic treatment after adjustment, sewage is subjected to hydrolytic acidification and anaerobic gas generation in the MABR tank, a large amount of organic matters are converted into methane to be separated from a system, meanwhile, a large amount of macromolecular substances are converted into low molecular substances for subsequent treatment, the sewage enters a primary A/O biochemical tank and a secondary A/O biochemical tank for aeration treatment after the anaerobic treatment, nitrate nitrogen in return water is subjected to denitrification into harmless nitrogen by utilizing an A section anoxic condition in the primary A/O biochemical tank and the secondary A/O biochemical tank, an O section adopts a biological contact oxidation method, special biological fillers are filled in the O section anoxic tank, and under the aerobic condition, the wastewater is fully contacted with the biological film on the filler, and the aerobic microorganisms finally decompose the organic pollutants into carbon dioxide and water, so that the wastewater is purified. Adding a phosphorus removing agent into the treated supernatant for two-stage phosphorus removal and precipitation, reacting the phosphorus removing agent with phosphate to generate insoluble substances, removing the total phosphorus in the wastewater, automatically flowing the treated water after phosphorus removal into a metering channel, and discharging the effluent after metering up to the standard.

And residual sludge in the secondary dephosphorization sedimentation tank, the primary A/O biochemical tank and the secondary A/O biochemical tank is discharged into a sludge tank for storage, then the stored sludge is sent into a filter pressing system for filter pressing, and filtrate and supernatant in the sludge tank flow back to the regulating tank for secondary treatment.

Example (b):

the water quality index is as follows: the pH value is 6-9, CODcr is less than or equal to 17000mg/L, ammonia nitrogen is less than or equal to 500mg/L, total nitrogen is less than or equal to 700mg/L, and total phosphorus is less than or equal to 110 mg/L.

The method comprises the following steps that mother liquor wastewater with high concentration enters a grid pool together with other production wastewater after being pretreated, the distance between grid bars of a mechanical fine grid is 5mm, the wastewater after large-particle suspended matters are removed through the grid automatically flows into an adjusting pool, the retention time is 12h, the wastewater after water quality and water quantity are adjusted is conveyed to an MABR anaerobic pool through a pump, anaerobic treatment is carried out by using anaerobic bacteria, the effluent automatically flows into a first-stage A/O biochemical pool after 3d of retention, the effluent automatically flows into an intermediate sedimentation pool for mud-water separation, the effluent flows into a second-stage A/O biochemical pool, the effluent automatically flows into a second-stage sedimentation pool for mud-water separation after 1.0d of retention, the effluent enters a two-stage dephosphorization sedimentation pool, precipitation is carried out through two-stage coagulation reaction, and the effluent is discharged after solid-liquid separation; the quality of the treated effluent water is as follows: the pH value is 6-9, the CODcr is less than or equal to 100mg/L, the ammonia nitrogen is less than or equal to 15mg/L, the total nitrogen is less than or equal to 30mg/L, and the total phosphorus is less than or equal to 0.5mg/L, which all meet the discharge standard.

And residual sludge in the secondary dephosphorization sedimentation tank, the primary A/O biochemical tank and the secondary A/O biochemical tank enters a sludge tank for concentration, the concentrated sludge is transported out after dehydration treatment, and supernatant and filter press liquid in the sludge tank flow back to the regulating tank for secondary treatment.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered within the scope of the present invention.

Claims

1. The utility model provides a viscera draws a class pharmacy effluent disposal system which characterized in that: comprises a sludge tank, a filter pressing system, and a grating tank, a regulating tank, an MABR anaerobic tank, a primary A/O biochemical tank, an intermediate sedimentation tank, a secondary A/O biochemical tank, a secondary sedimentation tank and a secondary dephosphorization sedimentation tank which are sequentially communicated, a backflow channel is arranged between the intermediate sedimentation tank and the first-stage A/O biochemical tank, a backflow channel is arranged between the secondary sedimentation tank and the second-stage A/O biochemical tank, the sludge discharge ports of the MABR anaerobic tank, the middle sedimentation tank, the secondary sedimentation tank and the secondary dephosphorization sedimentation tank are all communicated with the sludge tank, the sludge discharge hole of the sludge tank is communicated with the feed hole of the filter pressing system, the filtrate outlet of the filter pressing system and the supernatant outlet of the sludge tank are both communicated with the regulating tank, the water inlet of the grid pond is an inlet of wastewater to be treated, and the water outlet of the secondary dephosphorization sedimentation pond is a standard wastewater discharge port.

2. The viscera-extraction pharmaceutical wastewater treatment system of claim 1, wherein: the grid pond adopts the thin grid structure of machinery, and the grid distance is 5 mm.

3. The viscera-extraction pharmaceutical wastewater treatment system of claim 1, wherein: the reactor in the MABR anaerobic tank adopts an anaerobic baffle reactor with a built-in biological filler.

4. The viscera-extraction pharmaceutical wastewater treatment system of claim 1, wherein: and sludge reflux pumps are arranged in the secondary sedimentation tank and the middle sedimentation tank, and outlets of the sludge reflux pumps are communicated with corresponding reflux channels.

5. The viscera-extraction pharmaceutical wastewater treatment system of claim 1, wherein: the primary A/O biochemical pool and the secondary A/O biochemical pool both adopt a three-section anoxic and aerobic treatment structure, and stirring mechanisms are arranged in three-section anoxic zones.

6. The viscera-extraction pharmaceutical wastewater treatment system of claim 1, wherein: and a stirring mechanism is arranged in the secondary dephosphorization sedimentation tank, and two different dephosphorization agents are added for chemical dephosphorization.

7. The viscera-extraction pharmaceutical wastewater treatment system of claim 1, wherein: and a stirring mechanism is arranged in the sludge tank.