CN111533384A - Medical wastewater treatment system - Google Patents
Medical wastewater treatment system Download PDFInfo
- Publication number
- CN111533384A CN111533384A CN202010420174.9A CN202010420174A CN111533384A CN 111533384 A CN111533384 A CN 111533384A CN 202010420174 A CN202010420174 A CN 202010420174A CN 111533384 A CN111533384 A CN 111533384A
- Authority
- CN
- China
- Prior art keywords
- tank
- sludge
- wastewater treatment
- sedimentation tank
- sewage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/003—Wastewater from hospitals, laboratories and the like, heavily contaminated by pathogenic microorganisms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
- C02F2209/008—Processes using a programmable logic controller [PLC] comprising telecommunication features, e.g. modems or antennas
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
Abstract
The invention discloses a medical wastewater treatment system, which comprises: the first wastewater treatment subsystem comprises a grid assembly, an adjusting tank, a hydrolysis acidification tank, a biochemical reaction device, a secondary sedimentation tank and a post-treatment device which are sequentially connected, wherein the adjusting tank is also connected with the post-treatment device and is used for recovering water treated by the post-treatment device; the second wastewater treatment subsystem comprises a pretreatment device, a sedimentation tank, a disinfection tank II, a dechlorination tank provided with a dechlorination machine, an adjusting tank, a hydrolysis acidification tank, a biochemical reaction device, a secondary sedimentation tank and a post-treatment device which are connected in sequence; and the monitoring control module is used for monitoring and controlling the operation of the first wastewater treatment subsystem and the second wastewater treatment subsystem. The invention has the beneficial effects that: the two sets of wastewater treatment subsystems are combined, different types of wastewater are respectively pretreated and then combined for treatment, the energy consumption is low in efficiency and high in efficiency, the treatment effect is stable and reliable, and the equipment cost is saved.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a medical wastewater treatment system.
Background
Sewage treatment: the sewage is purified to reach the water quality requirement of being discharged into a certain water body or being reused. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like. The sewage treatment is generally classified into production sewage treatment and domestic sewage treatment according to the classification of sewage sources. The production sewage comprises industrial sewage, agricultural sewage, medical sewage and the like. The utilization method after the sewage treatment at the present stage is that the domestic sewage directly enters a sewage source heat pump system for heat exchange, and the domestic sewage is used for indoor refrigeration and heating of urban buildings under the condition of consuming a small amount of electric power; the industrial sewage and the medical sewage are independently treated by adopting professional equipment and then are reused.
However, the existing sewage treatment process carries out independent treatment on various types of sewage or adopts large-scale equipment to carry out indifferent centralized treatment; the treatment cost and energy consumption are basically high energy consumption and low efficiency, and a combined device capable of treating domestic sewage and medical sewage is needed.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a medical wastewater treatment system.
In order to achieve the purpose, the invention provides the following technical scheme:
a medical wastewater treatment system comprising: the first wastewater treatment subsystem comprises a grid assembly, an adjusting tank, a hydrolysis acidification tank, a biochemical reaction device, a secondary sedimentation tank and a post-treatment device which are sequentially connected, wherein the biochemical reaction device is used for carrying out biochemical reaction on the sewage conveyed by the hydrolysis acidification tank, the post-treatment device is used for killing and precipitating the sewage conveyed by the secondary sedimentation tank, and the adjusting tank is also connected with the post-treatment device and is used for recovering the water treated by the post-treatment device; the second wastewater treatment subsystem comprises a pretreatment device, a sedimentation tank, a disinfection tank II, a dechlorination tank provided with a dechlorination machine, an adjusting tank, a hydrolysis acidification tank, a biochemical reaction device, a secondary sedimentation tank and a post-treatment device which are connected in sequence, wherein the pretreatment device is used for removing floating materials in the medical wastewater of the infectious department; and the monitoring control module is used for monitoring and controlling the operation of the first wastewater treatment subsystem and the second wastewater treatment subsystem.
As a further scheme of the invention: the grid component comprises a mechanical grid I and a grid groove I, the discharge end of the mechanical grid I is connected with an external mechanism or an aftertreatment device, the liquid outlet end of the grid groove I is connected with the adjusting tank, and the mechanical grid I is connected with the monitoring control module.
As a still further scheme of the invention: the sludge settling device is arranged in the adjusting tank and comprises an inclined plate, a pneumatic dredge pump and a lifting pump, and the pneumatic dredge pump and the lifting pump are connected with the monitoring control module.
As a still further scheme of the invention: and a water distribution device is arranged in the hydrolysis acidification tank and is used for assisting in degrading the sewage conveyed to the biochemical reaction device.
As a still further scheme of the invention: biochemical reaction unit includes the activated sludge pond, sets up dive mixer, aeration head, aeration pipeline, sewage backwash pump and sludge reflux pump in the activated sludge pond, the aeration head is connected with the air-blower through aeration pipeline, for the activated sludge pond provides oxygen, sewage backwash pump and sludge reflux pump are used for carrying sewage and mud respectively, dive mixer, air-blower, sewage backwash pump and sludge reflux pump all with monitor control module connects.
As a still further scheme of the invention: the post-treatment device comprises a sludge tank and a disinfection tank I, wherein a first chlorine dioxide sterilizer is arranged in the disinfection tank I; the sludge tank is connected with the secondary sedimentation tank and the sedimentation tank and is used for collecting sludge.
As a still further scheme of the invention: the post-treatment device also comprises a sealing assembly, and the sealing assembly is used for sealing the pretreatment device, the sedimentation tank, the disinfection tank II and the dechlorination tank.
As a still further scheme of the invention: a sedimentation tank guide cylinder is arranged in the secondary sedimentation tank, the sedimentation tank guide cylinder is connected with the sludge tank, and the liquid outlet end of the secondary sedimentation tank is connected with the disinfection tank I.
As a still further scheme of the invention: pretreatment device includes pretreatment tank, sets up the grid groove II of pretreatment tank export, be equipped with mechanical grid II in the grid groove II, mechanical grid II's discharge end is connected with exterior mechanism or aftertreatment device, grid groove II's play liquid end with the sedimentation tank is connected.
As a still further scheme of the invention: the sedimentation tank is internally provided with a guide cylinder, a sludge discharge pipe and a sludge suction pump, the sedimentation tank is provided with a second ultrasonic sludge interface instrument, a screw-stacking dehydrator and a dosing device II, and the sludge suction pump, the second ultrasonic sludge interface instrument, the screw-stacking dehydrator and the dosing device II are all connected with the monitoring control module; and the water outlet of the sedimentation tank is communicated with the disinfection tank II.
As a still further scheme of the invention: the monitoring control module comprises a control panel and an operation station, and the operation station is in data communication with the control panel.
Compared with the prior art, the invention has the beneficial effects that: the two sets of wastewater treatment subsystems are combined, and different types of wastewater are respectively pretreated and then combined for treatment by using a biochemical treatment process, so that the energy consumption is low in efficiency and high in efficiency, the treatment effect is stable and reliable, and the equipment cost is saved.
Drawings
FIG. 1 is a system flow diagram of a medical wastewater treatment system in an embodiment of the present invention.
FIG. 2 is a system diagram of a medical wastewater treatment system in an embodiment of the present invention.
FIG. 3 is a schematic diagram of a portion of a second wastewater treatment subsystem in accordance with an embodiment of the present invention.
In the drawings: 1-mechanical grating I, 2-grating groove I, 3-adjusting tank, 4-hydrolytic acidification tank, 5-active sludge tank, 6-secondary sedimentation tank, 7-disinfection tank I, 8-sludge tank, 9-sedimentation tank, 10-disinfection tank II, 11-dechlorination tank, 12-mechanical grating II, 13-grating groove II, 14-pretreatment tank and 15-blower room;
31-an inclined plate, 32-a first ultrasonic sludge interface instrument, 33-a pneumatic dredge pump and 34-a lifting pump; 41-water distribution device and 42-semi-soft filler; 51-a submersible mixer, 52-an aeration head, 53-an aeration pipeline, 54-a blower, 55-a sewage return pump and 56-a sludge return pump; 61-a sedimentation tank guide shell, 71-a first chlorine dioxide sterilizer; 81-dosing equipment I, 82-flow limiting valves I, 83-a dehydrator and 84-a sludge pipeline; 91-a guide cylinder, 92-a sludge discharge pipe, 93-a sludge suction pump, 94-a second ultrasonic sludge interface instrument, 95-a screw-stacking dehydrator, 96-a dosing device II and 97-a flow limiting valve II; 101-second chlorine dioxide sterilizer and 111-dechlorination machine.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Referring to fig. 1 and 2, in an embodiment of the present invention, a medical wastewater treatment system includes: the first wastewater treatment subsystem comprises a grid assembly, an adjusting tank 3, a hydrolysis acidification tank 4, a biochemical reaction device, a secondary sedimentation tank 6 and a post-treatment device which are sequentially connected, wherein the biochemical reaction device is used for carrying out biochemical reaction on sewage conveyed by the hydrolysis acidification tank, the post-treatment device is used for killing and precipitating the sewage conveyed by the secondary sedimentation tank, and the adjusting tank 3 is also connected with the post-treatment device and is used for recovering water treated by the post-treatment device; the second wastewater treatment subsystem comprises a pretreatment device, a sedimentation tank 9, a disinfection tank II10, a dechlorination tank 11 provided with a dechlorination machine 111, an adjusting tank 3, a hydrolysis acidification tank 4, a biochemical reaction device, a secondary sedimentation tank 6 and a post-treatment device which are connected in sequence, wherein the pretreatment device is used for removing floating matters in the medical wastewater of the infectious department; and the monitoring control module is used for monitoring and controlling the operation of the first wastewater treatment subsystem and the second wastewater treatment subsystem.
Specifically, the first wastewater treatment subsystem: ordinary medical wastewater or kitchen sewage flows into a septic tank through a wastewater pipeline to form mixed sewage, then flows through a grid assembly to enter a regulating tank 3, suspended matters or sundries with large volume in the mixed sewage are filtered by the grid assembly, sludge precipitation is carried out in the regulating tank 3, the precipitated sludge is transported outwards to be treated, the precipitated upper-layer sewage is sent into a hydrolysis acidification tank 4, and the sewage is subjected to hydraulic cutting by semi-soft filler put in the hydrolysis acidification tank 4, so that the suspended sludge is fully mixed with water. The method provides favorable conditions for the growth of hydrolytic acidification bacteria, fully converts macromolecular organic matters in the sewage into micromolecules, sends the micromolecules into a biochemical reaction device for anaerobic biochemical reaction and aerobic biochemical reaction, and finally further processes the micromolecules by a secondary sedimentation tank 6 and a post-processing device to reach the discharge standard and discharge the micromolecules.
A second wastewater treatment subsystem: the infectious department medical wastewater flows to a pretreatment device through a special pipeline, is subjected to primary treatment, is sent to a sedimentation tank 9 for sedimentation after suspended matters are removed, forms sediment and supernatant, the sediment is sent to a post-treatment device for treatment, the supernatant is sent to a disinfection tank II10, and a second chlorine dioxide sterilizer 101 is arranged on the disinfection tank II10 for disinfecting sewage; the sewage after being disinfected is sent to a dechlorinating tank 11 to remove chlorine in the sewage, the waste water after the chlorine is removed is sent to an adjusting tank 3, sludge is precipitated in the adjusting tank 3, the precipitated sludge is transported outwards to be treated, the precipitated upper-layer sewage is sent to a hydrolysis acidification tank 4, and semi-soft filler thrown in the hydrolysis acidification tank 4 is used for carrying out hydraulic cutting on the sewage to enable the suspended sludge to be fully mixed with water. Providing favorable conditions for the growth of hydrolytic acidification bacteria, fully converting macromolecular organic matters in the sewage into micromolecules, sending the micromolecules into a biochemical reaction device for anaerobic biochemical reaction and aerobic biochemical reaction, and finally, further disinfecting and precipitating the micromolecules by a secondary sedimentation tank 6 and a post-treatment device to reach the discharge standard and then discharging the micromolecules. The monitoring control module monitors the operation conditions of each part of the first wastewater treatment subsystem and the second wastewater treatment subsystem, controls the working efficiency of each part according to the monitoring result, and ensures stable and efficient operation of each link. Before the infectious department sewage is conveyed to the regulating reservoir 3, the infectious department sewage is disinfected, so that the influence and damage to the subsequent treatment process, the working personnel of the treatment station and the surrounding personnel environment are prevented, the safety of equipment operation is improved, and the potential safety hazard which may exist is eliminated. The biological treatment process combining pretreatment, grating, regulating tank, settling tank, biochemical reaction device and disinfection tank is adopted to pretreat different kinds of waste water, hydrolysis and acidification can largely remove suspended matters or organic matters in the waste water in an anaerobic stage, the sludge amount of subsequent aerobic biochemical reaction can be effectively reduced, and the change of water inlet load can be buffered, so that stable water inlet conditions are created for aerobic treatment, the waste water treatment efficiency is high, and the treatment effect is stable and reliable.
The dechlorination machine 111 removes chlorine gas in the disinfected wastewater. Quantitative dechlorination agent is added from a feeding port of the dechlorination machine 111, a proper amount of tap water is added according to the proportion to prepare the dechlorination agent, and the flow rate of the administration flow meter is adjusted according to the content of residual chlorine in the water body.
Referring to fig. 2, in the embodiment of the present invention, the grid assembly includes a mechanical grid I and a grid groove I, a discharge end of the mechanical grid I is connected to an external mechanism or an aftertreatment device, a liquid outlet end of the grid groove I is connected to the adjusting tank, and the mechanical grid I is connected to the monitoring control module.
Specifically, the discharge end of the mechanical grating I is connected with an external mechanism or a post-treatment device, the liquid outlet end of the grating groove I is connected with the adjusting tank, the monitoring control module controls the mechanical grating I to work, so that suspended matters in wastewater are removed to a large extent, and a filter hole type fine grating machine is adopted. The sewage flows in from the front end of the grid basket, leaves the grid basket after being filtered, and filter residues are filtered and trapped in the filter hole type mesh basket. The filter residue accumulated on the mesh-type net further improves the filtration efficiency. And when the water level difference between the front and the rear of the filter hole basket reaches a set value, the filter hole type net frame starts to work. When the grid frame rotates to the upper part, the filter residue is thrown into a funnel positioned in the center of the lower end of the screw rod and is sent out of the ditch through the central auger. Spiral transmission mechanism is direct mount in the filtration pore basket, and transmission axle and horizontal plane become 35 degrees filter residue and are squeezed the dehydration at transportation in-process, because the interval of flight is from upwards reducing constantly down for the bars sediment is squeezed the dehydration in the flight, and water flows out under its own effect of gravity. A porous sleeve is arranged in front of a slag outlet of the spiral shaft, and the solid content of further dehydration can reach 40% through increasing resistance and friction force. And suspended matters in the wastewater can be removed by adopting a grating, so that the method is practical in smaller occasions.
Referring to fig. 2, in the embodiment of the present invention, the monitoring control module includes a control board and an operation station, and the operation station performs data communication with the control board.
Specifically, the control panel is connected with each component of the first wastewater treatment subsystem and the second wastewater treatment subsystem, a user provides an interactive interface arranged on the operation station for operation, and the control panel receives digital signals converted by the operation station and controls the work of each component of the first wastewater treatment subsystem and the second wastewater treatment subsystem.
Referring to fig. 2, in the embodiment of the present invention, a sludge settling device is disposed in the adjusting tank 3, the sludge settling device includes an inclined plate 31, an air suction pump 33 and a lift pump 34, and both the air suction pump 33 and the lift pump 34 are connected to the monitoring control module.
Specifically, the sewage transferred to the adjusting tank 3 is separated into a sludge layer and a supernatant layer by gravity through the inclined plate 31, the sludge in the sludge layer is transferred to the sludge tank by the pneumatic dredge pump 33, and the sewage in the supernatant layer is transferred to the hydrolysis acidification tank 4 by the lift pump 34. The pneumatic dredge pump and the lifting pump are connected with a control panel of the monitoring control module, and the control panel controls the pneumatic dredge pump and the lifting pump to work.
Preferably, the sludge treatment system further comprises a first ultrasonic sludge interface instrument 32 arranged on the adjusting tank 3, wherein the first ultrasonic sludge interface instrument 32 is connected with the control board and used for monitoring the thickness of sludge in the adjusting tank 3 and sending data to the control board, and the control board controls the working power of the pneumatic dredge pump 33 and the lifting pump 34 according to the received data.
Referring to fig. 2, in the embodiment of the present invention, a water distribution device 41 is disposed in the hydrolysis acidification tank for assisting in degrading the sewage conveyed to the biochemical reaction device.
The water distribution device 41 fully mixes the sewage conveyed to the biochemical reaction device, so that the sewage in the hydrolysis acidification tank 4 is hydraulically cut by the semi-soft filler 42 arranged in the hydrolysis acidification tank 4, the suspended sludge is fully mixed with the water, and the degradation and acidification can be fully realized.
Referring to fig. 2, in the embodiment of the present invention, the biochemical reaction apparatus includes an activated sludge tank (a/O tank) 5, a submersible mixer 51 disposed in the activated sludge tank 5, an aeration head 52, an aeration pipeline 53, a sewage return pump 55, and a sludge return pump 56, the aeration head 52 is connected to an air blower through the aeration pipeline 53 to provide oxygen for the activated sludge tank, the sewage return pump 55 and the sludge return pump 56 are respectively used for conveying sewage and sludge, and the submersible mixer 51, the air blower 54, the sewage return pump 55, and the sludge return pump 56 are all connected to the monitoring control module.
Specifically, the submersible mixer 51 mixes the sewage in the activated sludge tank 5 to prevent sedimentation, and the sewage reflux pump 55 and the sludge reflux pump 56 are arranged to adjust the contents of the sewage and the sludge, so that the activities of anaerobic bacteria and aerobic bacteria are kept optimal when anaerobic biochemical reaction and aerobic biochemical reaction are respectively carried out. When an anaerobic biochemical reaction occurs, the aeration head 52, the aeration pipeline 53 and the blower 54 do not work, and when an aerobic biochemical reaction occurs, the aeration head 52, the aeration pipeline 53 and the blower 54 work to provide oxygen for the activated sludge tank 5, so that the efficient operation of the aerobic biochemical reaction is ensured. The blower 54 is provided in the blower room 15.
Referring to fig. 1 and 2, in the embodiment of the present invention, the post-treatment apparatus includes a sludge tank 8 and a disinfection tank I7, wherein a first chlorine dioxide sterilizer 71 is disposed in the disinfection tank I7; the sludge tank 8 is connected with the secondary sedimentation tank 6 and the sedimentation tank 9 and is used for collecting sludge.
Specifically, the first chlorine dioxide sterilizer 71 performs a secondary sterilization treatment on the sewage in the sterilizing tank I7 to prevent infection. The sludge tank 8 is connected with a dehydrator 83, the adjusting tank 8 is connected with the dehydrator 83 through a sludge pipeline 84, a flow limiting valve I82 is arranged between the sludge tank 8 and the dehydrator 83, the flow limiting valve I82 is connected with a dosing device I81, a chlorine dioxide preparation conveyed by the dosing device I81 is mixed with sludge conveyed by the sludge tank 8 at the position of the flow limiting valve I82, the sludge is disinfected and then is dehydrated into mud cakes by the dehydrator 83, the sludge conveyed by the adjusting tank 8 through the sludge pipeline 84 is also processed into mud cakes, and the mud cakes can be recycled; or discharging the collected sludge to a transportation device for transportation. Chlorine dioxide is used as a novel oxidant and disinfectant, and has outstanding water treatment field due to high-efficiency, broad-spectrum, residue-free and byproduct-free disinfection capability and strong oxidation capabilities of decoloring, deodorizing, peculiar smell removing and the like. Compared with the traditional disinfectants such as ultraviolet rays, ozone, sodium hypochlorite, liquid chlorine and the like, the chlorine dioxide disinfectant has unique advantages.
Referring to fig. 2, in the embodiment of the present invention, a sedimentation tank draft tube 61 is disposed in the secondary sedimentation tank, the sedimentation tank draft tube 61 is connected to the sludge tank 8, and the liquid outlet end of the secondary sedimentation tank 6 is connected to the disinfection tank I7.
Specifically, the sedimentation tank guide cylinder 61 conveys the sludge to the sludge tank 8 for sedimentation treatment, and the sewage subjected to disinfection and sterilization is recycled after the disinfection and sterilization treatment is carried out on the sewage in the disinfection tank I7.
Referring to fig. 2 and 3, in the embodiment of the present invention, the pretreatment apparatus includes a pretreatment tank 14 and a grid groove II13 disposed at an outlet of the pretreatment tank, a mechanical grid II12 is disposed in the grid groove II13, a discharge end of the mechanical grid II12 is connected to an external mechanism or a post-treatment apparatus, and a liquid outlet end of the grid groove II13 is connected to the sedimentation tank 9.
Specifically, the grid groove II13 is arranged at the water outlet of the pretreatment tank 14, the discharge end of the mechanical grid II12 is connected with an external mechanism or an after-treatment device, the liquid outlet end of the grid groove II13 is connected with the sedimentation tank 9, and the control panel controls the mechanical grid II12 to work, so that suspended matters in the medical wastewater of the infectious department can be greatly removed.
Referring to fig. 3, in the embodiment of the present invention, a draft tube 91, a sludge discharge pipe 92 and a sludge suction pump 93 are disposed in the sedimentation tank, a second ultrasonic sludge interface instrument 94, a screw-stacking dehydrator 95 and a dosing device II96 are disposed on the sedimentation tank 9, and the sludge suction pump 93, the second ultrasonic sludge interface instrument 94, the screw-stacking dehydrator 95 and the dosing device II96 are all connected to the monitoring control module; the water outlet of the sedimentation tank 9 is communicated with the disinfection tank II 10.
Specifically, the guide cylinder 91 is connected with the liquid outlet end of the grid groove II13, and guides the sewage conveyed by the grid groove II13 to the middle lower part of the sedimentation tank 9 for sedimentation. The dredge pump 93 conveys the precipitated sludge to the spiral shell overlapping dehydrator 95 for dehydration treatment, and the dosing equipment II96 is connected with the spiral shell overlapping dehydrator 95 to provide a proportioned chlorine dioxide preparation for the spiral shell overlapping dehydrator 95 to disinfect the sludge. The sludge discharge pipe 92 discharges the sediment to an external transport facility for transport away. The second ultrasonic sludge interface instrument 94 monitors the thickness of the precipitated sludge and transmits data to the control board, and the control board controls the working efficiency of the sludge suction pump 93. The stable and efficient operation of the precipitation process is ensured. Fold spiral shell hydroextractor 95 with be equipped with restriction valve II97 between the dredge pump 93, the control panel passes through restriction valve II97 adjusts the mud flow who carries to fold spiral shell hydroextractor 95 guarantees fold spiral shell hydroextractor 95 and stabilize high-efficient the operation.
Referring to fig. 2, in the embodiment of the present invention, the post-treatment apparatus further includes a sealing assembly for sealing the pretreatment apparatus, the sedimentation tank 9, the disinfection tank II10 and the dechlorination tank 11.
Specifically, the seal assembly include with the sealed lid that matches of preliminary treatment pond 14, sedimentation tank 9, disinfection pond II10 and dechlorination pond 11 will preliminary treatment pond 14, sedimentation tank 9, disinfection pond II10 and dechlorination pond 11 seal, prevent to take place the infection, guarantee user's safety.
[ remarks: 81-dosing device I, 96-dosing device II, not shown, are written herein as they might perform; 82. 97 is temporarily designated as a restriction valve; with optimization of communication at objections ]
The working principle of the invention is as follows: a first wastewater treatment subsystem: ordinary medical wastewater or kitchen sewage flows into a septic tank through a wastewater pipeline to form mixed sewage, then flows through a grid assembly to enter a regulating tank 3, suspended matters or sundries with large volume in the mixed sewage are filtered by the grid assembly, sludge precipitation is carried out in the regulating tank 3, the precipitated sludge is transported outwards to be treated, the precipitated upper-layer sewage is sent into a hydrolysis acidification tank 4, and the sewage is subjected to hydraulic cutting by semi-soft filler put in the hydrolysis acidification tank 4, so that the suspended sludge is fully mixed with water. The method provides favorable conditions for the growth of hydrolytic acidification bacteria, fully converts macromolecular organic matters in the sewage into micromolecules, sends the micromolecules into a biochemical reaction device for anaerobic biochemical reaction and aerobic biochemical reaction, and finally further processes the micromolecules by a secondary sedimentation tank 6 and a post-processing device to reach the discharge standard and discharge the micromolecules.
A second wastewater treatment subsystem: medical wastewater of infectious department flows to preprocessing device through special pipeline, and preliminary treatment is sent into sedimentation tank 9 and is depositd after getting rid of the suspended solid, forms and deposits and supernatant, the sediment is carried post-processing device and is handled, the supernatant is carried to disinfection pond II10 and is disinfecting after sending to dechlorination pond 11 and get rid of chlorine in the waste water after disinfecting, and the waste water after getting rid of chlorine is sent to equalizing basin 3, in equalizing basin 3, carries out sludge settling, and the mud of sediment is handled by the outward transport, and the upper sewage after the sediment is sent into hydrolysis acidification tank 4, is put in the semi-soft filler of hydrolysis acidification tank 4 carries out water conservancy cutting with sewage, makes suspended state's mud and water intensive mixing. Providing favorable conditions for the growth of hydrolytic acidification bacteria, fully converting macromolecular organic matters in the sewage into micromolecules, sending the micromolecules into a biochemical reaction device for anaerobic biochemical reaction and aerobic biochemical reaction, and finally, further disinfecting and precipitating the micromolecules by a secondary sedimentation tank 6 and a post-treatment device to reach the discharge standard and then discharging the micromolecules. The monitoring control module monitors the operation conditions of each part of the first wastewater treatment subsystem and the second wastewater treatment subsystem, controls the working efficiency of each part according to the monitoring result, and ensures stable and efficient operation of each link.
It should be noted that the control panel and the operator station used in the present invention are prior art applications, and those skilled in the art can implement the functions to be achieved according to the related description, or implement the technical features to be achieved through similar techniques, and will not be described in detail herein.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A medical wastewater treatment system, comprising:
the first wastewater treatment subsystem comprises a grid component, an adjusting tank, a hydrolysis acidification tank, a biochemical reaction device, a secondary sedimentation tank and a post-treatment device which are connected in sequence,
the biochemical reaction device is used for carrying out biochemical reaction on the sewage conveyed by the hydrolytic acidification tank,
the post-treatment device is used for killing and precipitating the sewage conveyed by the secondary sedimentation tank,
the adjusting tank is also connected with the post-treatment device and is used for recovering water treated by the post-treatment device;
the second wastewater treatment subsystem comprises a pretreatment device, a sedimentation tank, a disinfection tank II, a dechlorination tank provided with a dechlorination machine, an adjusting tank, a hydrolysis acidification tank, a biochemical reaction device, a secondary sedimentation tank and a post-treatment device which are connected in sequence, wherein the pretreatment device is used for removing floating materials in the medical wastewater of the infectious department; and
and the monitoring control module is used for monitoring and controlling the operation of the first wastewater treatment subsystem and the second wastewater treatment subsystem.
2. The medical wastewater treatment system according to claim 1, wherein the grid assembly comprises a mechanical grid I and a grid groove I, a discharge end of the mechanical grid I is connected with an external mechanism or an after-treatment device, a liquid outlet end of the grid groove I is connected with the regulating reservoir, and the mechanical grid I is connected with the monitoring control module.
3. The medical wastewater treatment system according to claim 1, wherein a sludge settling device is arranged in the regulating reservoir, the sludge settling device comprises an inclined plate, a pneumatic dredge pump and a lift pump, and the pneumatic dredge pump and the lift pump are both connected with the monitoring control module.
4. The medical wastewater treatment system according to claim 1, wherein a water distribution device is disposed in the hydrolytic acidification tank for assisting in degrading the wastewater delivered to the biochemical reaction device.
5. The medical wastewater treatment system according to claim 1, wherein the biochemical reaction device comprises an activated sludge tank, a submersible mixer, an aeration head, an aeration pipeline, a sewage reflux pump and a sludge reflux pump, the submersible mixer, the aeration head, the aeration pipeline, the sewage reflux pump and the sludge reflux pump are arranged in the activated sludge tank, the aeration head is connected with an air blower through the aeration pipeline to provide oxygen for the activated sludge tank, the sewage reflux pump and the sludge reflux pump are respectively used for conveying sewage and sludge, and the submersible mixer, the air blower, the sewage reflux pump and the sludge reflux pump are all connected with the monitoring control module.
6. The medical wastewater treatment system according to claim 1, wherein the post-treatment device comprises a sealing assembly, a sludge tank and a disinfection tank I, the sealing assembly is used for sealing the pretreatment device, the sedimentation tank, the disinfection tank II and the dechlorination tank, and a first chlorine dioxide sterilizer is arranged in the disinfection tank I; the sludge tank is connected with the secondary sedimentation tank and the sedimentation tank and is used for collecting sludge.
7. The medical wastewater treatment system according to claim 6, wherein a sedimentation tank guide cylinder is arranged in the secondary sedimentation tank, the sedimentation tank guide cylinder is connected with the sludge tank, and the liquid outlet end of the secondary sedimentation tank is connected with the disinfection tank I.
8. The medical wastewater treatment system according to claim 1, wherein the pretreatment device comprises a pretreatment tank and a grid groove II arranged at the outlet of the pretreatment tank, a mechanical grid II is arranged in the grid groove II, the discharge end of the mechanical grid II is connected with an external mechanism or an aftertreatment device, and the liquid outlet end of the grid groove II is connected with the sedimentation tank.
9. The medical wastewater treatment system according to claim 1, wherein a draft tube, a sludge discharge pipe and a sludge suction pump are arranged in the sedimentation tank, a second ultrasonic sludge interface instrument, a screw-stacking dehydrator and a dosing device II are arranged on the sedimentation tank, and the sludge suction pump, the second ultrasonic sludge interface instrument, the screw-stacking dehydrator and the dosing device II are all connected with the monitoring control module; and the water outlet of the sedimentation tank is communicated with the disinfection tank II.
10. The medical wastewater treatment system of any of claims 1-9, wherein the monitoring control module includes a control panel and an operator station in data communication with the control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010420174.9A CN111533384A (en) | 2020-05-18 | 2020-05-18 | Medical wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010420174.9A CN111533384A (en) | 2020-05-18 | 2020-05-18 | Medical wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111533384A true CN111533384A (en) | 2020-08-14 |
Family
ID=71972116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010420174.9A Pending CN111533384A (en) | 2020-05-18 | 2020-05-18 | Medical wastewater treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111533384A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090166280A1 (en) * | 2007-12-28 | 2009-07-02 | Beijing Jinaohuarong Science And Technology Co., Ltd. | Wastewater purifying system in hospitals |
| CN106430827A (en) * | 2016-10-18 | 2017-02-22 | 浙江金鸣环境科技有限公司 | Solar energy low-noise medical wastewater treatment system |
| CN107445393A (en) * | 2017-07-31 | 2017-12-08 | 江苏中超环保股份有限公司 | A kind of integral type medical waste water processing unit |
| CN208980539U (en) * | 2018-09-30 | 2019-06-14 | 江西环境工程职业学院 | A kind of waste water treatment system for hospitals |
-
2020
- 2020-05-18 CN CN202010420174.9A patent/CN111533384A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090166280A1 (en) * | 2007-12-28 | 2009-07-02 | Beijing Jinaohuarong Science And Technology Co., Ltd. | Wastewater purifying system in hospitals |
| CN106430827A (en) * | 2016-10-18 | 2017-02-22 | 浙江金鸣环境科技有限公司 | Solar energy low-noise medical wastewater treatment system |
| CN107445393A (en) * | 2017-07-31 | 2017-12-08 | 江苏中超环保股份有限公司 | A kind of integral type medical waste water processing unit |
| CN208980539U (en) * | 2018-09-30 | 2019-06-14 | 江西环境工程职业学院 | A kind of waste water treatment system for hospitals |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104129893B (en) | Acetylbutyrylcellulose produces the processing method of waste water | |
| CN104843954B (en) | Sewage treatment device and treatment method thereof for large-scale sewage treatment station | |
| CN104944710A (en) | Medical wastewater three-stage treatment technique | |
| CN101560028A (en) | Sewage physicochemical treatment method and device | |
| CN111908705B (en) | Nitrogen and phosphorus removal process based on multi-effect medical sewage treatment | |
| CN112707604A (en) | Medical wastewater treatment system | |
| CN103011517B (en) | Device and control method for safety guarantee of municipal sewage recycling | |
| CN210915763U (en) | Integrated sewage treatment device | |
| CN202152309U (en) | Complete set of modularized small-scale device for treatment of high-concentration organic wastewater | |
| CN211226813U (en) | Unattended culture sewage treatment system | |
| CN205133343U (en) | Rubbish transfer station sewage treatment system | |
| CN104556509B (en) | A kind of running water sterilization system based on membrane technology | |
| CN207811509U (en) | A kind of Bleaching and dyeing sewage processing unit | |
| CN111533384A (en) | Medical wastewater treatment system | |
| CN207130115U (en) | A kind of medical waste water processing unit | |
| CN210711136U (en) | Intelligent integrated equipment for waste water treatment of garbage transfer station | |
| CN206705902U (en) | Hospital Sewage Treatment integration apparatus | |
| CN101786716A (en) | High-concentration difficult-degradation organic sewage treating system | |
| CN213834973U (en) | Integrated domestic sewage treatment equipment | |
| CN204752476U (en) | Sewage treatment device at large -scale sewage treatment station | |
| CN204779259U (en) | Novel only formula MBR reuse of reclaimed water all -in -one | |
| CN205222870U (en) | Underground water treating device | |
| CN211284066U (en) | Kitchen waste fermentation liquor treatment system | |
| CN207811366U (en) | A kind of sewage disposal system | |
| CN109694166A (en) | A kind of bis- membrane process integrated equipment for sewage treatment of MBR |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200814 |
|
| RJ01 | Rejection of invention patent application after publication |