CN111253018A - Integrated treatment device and method for traditional Chinese medicine decoction wastewater - Google Patents
Integrated treatment device and method for traditional Chinese medicine decoction wastewater Download PDFInfo
- Publication number
- CN111253018A CN111253018A CN202010238973.4A CN202010238973A CN111253018A CN 111253018 A CN111253018 A CN 111253018A CN 202010238973 A CN202010238973 A CN 202010238973A CN 111253018 A CN111253018 A CN 111253018A
- Authority
- CN
- China
- Prior art keywords
- tank
- wastewater
- chinese medicine
- traditional chinese
- sludge
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/343—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the pharmaceutical industry, e.g. containing antibiotics
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
-
- 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
- C02F3/30—Aerobic and anaerobic 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention provides an integrated treatment device and method for Chinese medicine decoction wastewater, which has strong treatment means spectrum and wide application range. An integrated treatment device for traditional Chinese medicine decoction wastewater comprises a water inlet dosing system, an electrochemical pretreatment system and a multi-stage biochemical treatment system which are sequentially connected; the water inlet dosing system comprises a dosing assembly, an electric control assembly and an adjusting tank, wherein the electric control assembly is electrically connected with the dosing assembly; the electrochemical pretreatment system comprises a micro-electrolysis reaction tank, a multiphase fluidized Fenton oxidation tank, a pH adjusting tank, a coagulation tank, a sedimentation tank and an intermediate water tank which are connected in sequence; the multistage biochemical treatment system comprises a hydrolysis acidification tank, a first strengthened aerobic sludge film tank, a second strengthened aerobic sludge film tank and a secondary sedimentation tank. The integrated treatment device and the method for the traditional Chinese medicine decoction wastewater adopt integrated equipment, can be produced in a set, are simple and convenient to install, occupy small space and are simple to operate, and are particularly suitable for traditional Chinese medicine wastewater treatment of small traditional Chinese medicine production enterprises, hospitals or clinics.
Description
Technical Field
The invention relates to a wastewater treatment device and method, in particular to an integrated treatment device and method for traditional Chinese medicine decoction wastewater, and belongs to the technical field of wastewater treatment.
Background
Traditional Chinese medicine is a traditional and specific medical technology in China, wherein the traditional Chinese medicine is prepared and decocted reasonably according to the characteristics of human bodies by using the theory of traditional Chinese medicine and according to the properties and pharmacology of different animal and plant medicines, and the traditional Chinese medicine is taken to play a role in treating diseases and strengthening the body. A certain amount of decoction wastewater is generated in the traditional Chinese medicine decoction process, and mainly comes from the cleaning of decoction equipment, the cleaning of traditional Chinese medicines and a small amount of washing water leaking finished medicines. The Chinese medicine decoction waste water has the characteristics of complex components, high chroma, more impurities, difficult degradation, small water amount and large seasonal variation. Due to the fact that the traditional Chinese medicines are various and different pharmacology and toxicology of different medicines are different, once the traditional Chinese medicines are not effectively treated and enter a water body environment, the problem of water environment pollution and a series of unpredictable human health risks can be caused.
At present, researches and applications aiming at traditional Chinese medicine wastewater treatment mainly concentrate the recycling of decoction dregs or treat large water volume in large-scale traditional Chinese medicine production enterprises, and the corresponding technology mainly comprises the mixed treatment with conventional domestic sewage, the concentration of wastewater pollutants is low, and a conventional coagulating sedimentation and contact oxidation method is adopted, so that the treatment effect and the stability are further improved. However, Chinese traditional medicine manufacturers are more enterprises with smaller scale, such as hospitals, clinics, traditional Chinese medicine rooms and the like, and are not suitable for large-scale sewage treatment systems due to small water production; in addition, the water quality of the produced traditional Chinese medicine wastewater is greatly different according to the difference of different manufacturers, the difference of types of the decocted traditional Chinese medicines and seasonal difference. In general, for the wastewater from traditional Chinese medicine decoction, a treatment facility and a treatment method suitable for small-scale water volume and strong broad spectrum are still lacked, so as to better solve the problem of water environment caused by the traditional Chinese medicine wastewater. Therefore, it is necessary to research and develop an integrated device and a treatment method suitable for treating the wastewater of traditional Chinese medicine decoction.
Disclosure of Invention
The invention aims to provide an integrated treatment device for traditional Chinese medicine decoction wastewater, which has a broad spectrum of treatment means and a wide application range, ensures the stable standard discharge of the traditional Chinese medicine decoction wastewater, and solves the problems in the background art.
The invention also aims to provide a method for treating the traditional Chinese medicine decoction wastewater, which adopts an electrochemical coupling multistage biochemical process to improve the removal efficiency of pollutants in the traditional Chinese medicine decoction wastewater.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an integrated treatment device for traditional Chinese medicine decoction wastewater comprises a water inlet dosing system, an electrochemical pretreatment system and a multi-stage biochemical treatment system which are sequentially connected; the water inlet dosing system comprises a dosing assembly, an electric control assembly and an adjusting tank, wherein the electric control assembly is electrically connected with the dosing assembly, and the dosing assembly is connected with the adjusting tank; the electrochemical pretreatment system comprises a micro-electrolysis reaction tank, a multi-phase fluidized Fenton oxidation tank, a pH adjusting tank, a coagulation tank, a sedimentation tank and an intermediate water tank which are sequentially connected, wherein a micro-electrolysis packing layer is arranged in the micro-electrolysis reaction tank, a Fenton catalyst packing layer is arranged in the multi-phase fluidized Fenton oxidation tank, and a dosing assembly is connected with the multi-phase fluidized Fenton oxidation tank, the pH adjusting tank and the coagulation tank; multistage biochemical treatment system including hydrolysis-acidification pool, first reinforce good oxygen mud membrane pond, the good oxygen mud membrane pond is reinforceed to the second and two sink the pond, all be equipped with the sponge packing layer in the first intensive good oxygen mud membrane pond and the second reinforce good oxygen mud membrane pond, two sink the pond and be equipped with the mud back flow that is used for mud backward flow hydrolysis-acidification pool, first intensive good oxygen mud membrane pond and the good oxygen mud membrane pond is reinforceed to the second.
Preferably, the dosing assembly comprises an acid adding part, an alkali adding part, a hydrogen peroxide adding part and a coagulant and flocculant adding part, the acid adding part is connected with the regulating tank, the alkali adding part is connected with the pH regulating tank, the hydrogen peroxide adding part is connected with the multiphase fluidized Fenton oxidation tank, and the coagulant and flocculant adding part is connected with the coagulation tank.
Preferably, the micro-electrolysis filler layer is internally provided with granular micro-electrolysis filler, and the filling rate of the micro-electrolysis filler ranges from 50% to 70%.
Preferably, the Fenton catalyst filler layer is internally provided with a Fenton catalytic filler, the filling rate of the Fenton catalytic filler ranges from 40% to 60%, and the Fenton catalytic filler is a particulate matter with the diameter of 2mm to 5 mm. The Fenton catalytic filler is a mixture of natural zeolite and copper-aluminum oxide, and is a commercially available product.
Preferably, an aeration pipe is arranged at the bottom of the multiphase fluidization Fenton oxidation tank, a water distribution pipe is arranged between the aeration pipe and the Fenton catalyst packing layer, an air lift pump and a reflux pump are arranged at the top of the multiphase fluidization Fenton oxidation tank, the air lift pump is provided with an air lift pipe extending into the multiphase fluidization Fenton oxidation tank, and the reflux pump is provided with a reflux pipe extending into the bottom of the multiphase fluidization Fenton oxidation tank.
Preferably, the pH adjusting tank and the coagulating tank are arranged above the sedimentation tank, the pH adjusting tank and the coagulating tank are internally provided with a stirrer, the sedimentation tank is internally provided with an inclined tube packing layer, and the bottom of the sedimentation tank is provided with a sludge pump.
Preferably, the bottom of the middle water tank is provided with an aeration pipe, and the top of the middle water tank is provided with a middle water tank lifting pump.
Preferably, the sponge packing layer is internally provided with sponge packing hung in a strip shape, the filling rate of the sponge packing ranges from 30% to 40%, the bottom of the first reinforced aerobic sludge membrane pool and the bottom of the second reinforced aerobic sludge membrane pool are both provided with aeration pipes, and a water distribution pipe is arranged between each aeration pipe and the sponge packing layer. The sponge filler is a biological enrichment filler with high porosity and is a commercial product.
Preferably, a sludge reflux pump is arranged at the top of the secondary sedimentation tank and connected with a sludge reflux pipe, and the sludge reflux pipe is respectively communicated with the secondary sedimentation tank, the hydrolysis acidification tank, the secondary sedimentation tank, the first strengthened aerobic sludge film tank, the secondary sedimentation tank and the second strengthened aerobic sludge film tank.
A method for treating the traditional Chinese medicine decoction wastewater by adopting the integrated treatment device for the traditional Chinese medicine decoction wastewater comprises the following specific steps:
(1) pumping the primarily filtered traditional Chinese medicine decoction wastewater into an adjusting tank, and controlling a dosing assembly to dose dilute sulfuric acid into the adjusting tank through an electric control assembly, wherein the pH value of the wastewater in the adjusting tank ranges from 3 to 3.5;
(2) pumping the wastewater in the step (1) into a micro-electrolysis reaction tank, and controlling the air-water ratio to be 3-7 for aeration in the micro-electrolysis reaction tank: 1, carrying out oxidation decomposition on the wastewater by an electrochemical reaction of the micro-electrolysis filler layer under an acidic condition, and staying the wastewater in a micro-electrolysis reaction tank for 1-2.5 hours;
(3) the wastewater in the step (2) flows into a multiphase fluidization Fenton oxidation pond, aeration is carried out in the multiphase fluidization Fenton oxidation pond, and the air-water ratio is controlled to be 5-10: adding hydrogen peroxide into the multiphase fluidized Fenton oxidation tank by controlling the medicine adding assembly through the electric control assembly, wherein the adding amount is 0.1-0.4% (v/v), so that ferrous ions in the wastewater in the step (2) and the hydrogen peroxide form a Fenton reagent to generate a Fenton oxidation reaction, and the wastewater stays in the multiphase fluidized Fenton oxidation tank for 0.5-1 h;
(4) the wastewater obtained in the step (3) sequentially enters a pH adjusting tank, a coagulation tank and a sedimentation tank, the wastewater respectively stays in the pH adjusting tank and the coagulation tank for 10-20 min, the electric control assembly controls the dosing assembly to dose liquid alkali into the pH adjusting tank, the pH value range in the tank is 7.5-8.5, the electric control assembly controls the dosing assembly to dose coagulant and flocculant into the coagulation tank, the wastewater stays in the sedimentation tank for 1-2 h, supernatant flows into an intermediate water tank, and sludge at the bottom of the sedimentation tank is discharged;
(5) the supernatant obtained in the step (4) stays in the intermediate water tank for 3-6 hours and then is pumped into a hydrolysis acidification tank;
(6) keeping the concentration of anaerobic activated sludge in the hydrolysis acidification tank at 15-25 g/L, and staying the wastewater in the hydrolysis acidification tank for 12-20 h;
(7) the wastewater in the step (6) sequentially flows into a first enhanced aerobic sludge film pool and a second enhanced aerobic sludge film pool, the first enhanced aerobic sludge film pool and the second enhanced aerobic sludge film pool are respectively aerated, the concentration of dissolved oxygen in the pool is controlled to be 2.0-5.0 mg/L, the concentration of suspended aerobic activated sludge in the pool is controlled to be 4-7 g/L, the concentration of total activated sludge is 9-15 g/L, and the total residence time of the wastewater in the first enhanced aerobic sludge film pool and the second enhanced aerobic sludge film pool is 10-15 h;
(8) and (4) enabling the wastewater in the step (7) to flow into a secondary sedimentation tank, enabling the wastewater to stay in the secondary sedimentation tank for 3-5 hours, and enabling sludge at the bottom of the secondary sedimentation tank to flow back at a reflux ratio of 0.1-0.3: 1, refluxing to a hydrolysis acidification tank, and refluxing sludge at the bottom of a secondary sedimentation tank in a reflux ratio of 2-3: 1 reflowing to a first intensified aerobic sludge film tank and a second intensified aerobic sludge film tank, and discharging supernatant in a second sedimentation tank after reaching the standard.
The invention has the beneficial effects that:
the integrated treatment device and the method for the traditional Chinese medicine decoction wastewater adopt integrated equipment, can be produced in a set, are simple and convenient to install, occupy small space and are simple to operate, and are particularly suitable for wastewater treatment of small traditional Chinese medicine production enterprises; the invention adopts the electrochemical enhanced oxidation pretreatment and the multistage enhanced biochemical treatment with strong broad spectrum, and can effectively realize the high-efficiency pollutant removal aiming at the traditional Chinese medicine decoction wastewater with various concentrations and water qualities, so that the traditional Chinese medicine decoction wastewater is effectively treated, and the effluent is stable; the invention also has synchronous removal effect on nitrogen and phosphorus pollutants in the traditional Chinese medicine decoction wastewater.
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 is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic front view of the present invention.
In the figure: 1. the system comprises a dosing assembly, 2, an electric control assembly, 3, an adjusting tank, 4, a micro-electrolysis reaction tank, 5, a multi-phase fluidized Fenton oxidation tank, 6, a pH adjusting tank, 7, a coagulation tank, 8, a sedimentation tank, 9, an intermediate water tank, 10, a hydrolysis acidification tank, 11, a first reinforced aerobic sludge membrane tank, 12, a second reinforced aerobic sludge membrane tank, 13, a second sedimentation tank, 14, an aeration pipe, 15, a water distribution pipe, 16, an air stripping pump, 17, a reflux pump, 18, an air stripping pipe, 19, a reflux pipe, 20, a stirrer, 21, an intermediate water tank lifting pump, 101, an acid adding part, 102, an alkali adding part, 103, a hydrogen peroxide adding part, 104, a coagulant adding part, 401, a micro-electrolysis component, 501, a Fenton catalyst packing layer, 801, an inclined pipe packing layer, 802, a sludge pump, 1101, a sponge, 1301, a sludge reflux pipe, 1302, and a sludge reflux pump.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific examples in conjunction with the accompanying drawings. It is to be understood that the practice of the invention is not limited to the following examples, and that any variations and/or modifications may be made thereto without departing from the scope of the invention.
In the present invention, all parts and percentages are by weight, unless otherwise specified, and the equipment and materials used are commercially available or commonly used in the art. The methods in the following examples are conventional in the art unless otherwise specified. The components or devices in the following examples are, unless otherwise specified, standard parts or parts known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through routine experimentation.
Example (b):
as shown in figure 1, the integrated treatment device for the wastewater from traditional Chinese medicine decoction comprises a water inlet dosing system, an electrochemical pretreatment system and a multi-stage biochemical treatment system which are connected in sequence. The water inlet dosing system comprises a dosing assembly 1, an electric control assembly 2 and a regulating tank 3, wherein the electric control assembly is electrically connected with the dosing assembly, and the dosing assembly is connected with the regulating tank. The electrochemical pretreatment system comprises a micro-electrolysis reaction tank 4, a multi-phase fluidization Fenton oxidation tank 5, a pH adjusting tank 6, a coagulation tank 7, a sedimentation tank 8 and an intermediate water tank 9 which are sequentially connected, wherein a micro-electrolysis packing layer 401 is arranged in the micro-electrolysis reaction tank, a Fenton catalyst packing layer 501 is arranged in the multi-phase fluidization Fenton oxidation tank, and a dosing assembly is connected with the multi-phase fluidization Fenton oxidation tank, the pH adjusting tank and the coagulation tank. The multistage biochemical treatment system comprises a hydrolysis acidification tank 10, a first reinforced aerobic sludge membrane tank 11, a second reinforced aerobic sludge membrane tank 12 and a secondary sedimentation tank 13, wherein a sponge packing layer 1101 is arranged in the first reinforced aerobic sludge membrane tank and the second reinforced aerobic sludge membrane tank, and the secondary sedimentation tank is provided with a sludge return pipe 1301 for returning sludge to the hydrolysis acidification tank, the first reinforced aerobic sludge membrane tank and the second reinforced aerobic sludge membrane tank.
The dosing assembly comprises an acid adding component 101, an alkali adding component 102, a hydrogen peroxide adding component 103 and a coagulant and flocculant adding component 104, wherein the acid adding component is connected with the regulating tank, the alkali adding component is connected with the pH regulating tank, the hydrogen peroxide adding component is connected with the multiphase fluidized Fenton oxidation tank, and the coagulant and flocculant adding component is connected with the coagulation tank. Wherein, acid addition and alkali addition are automatically controlled by the electric control component, and the rest are quantitatively added.
The micro-electrolysis filler layer is internally provided with granular micro-electrolysis filler, and the filling rate of the micro-electrolysis filler ranges from 50% to 70%.
The Fenton catalyst packing layer is internally provided with a Fenton catalytic packing, the filling rate of the Fenton catalytic packing ranges from 40% to 60%, and the Fenton catalytic packing is a particulate matter with the diameter of 2mm to 5 mm. The Fenton catalytic filler is a mixture of natural zeolite and copper-aluminum oxide, and is a commercially available product.
The bottom of the multiphase fluidization Fenton oxidation tank is provided with an aeration pipe 14, a water distribution pipe 15 is arranged between the aeration pipe and a Fenton catalyst packing layer, the top of the multiphase fluidization Fenton oxidation tank is provided with an air lift pump 16 and a reflux pump 17, the air lift pump is provided with an air lift pipe 18 extending into the multiphase fluidization Fenton oxidation tank, and the reflux pump is provided with a reflux pipe 19 extending into the bottom of the multiphase fluidization Fenton oxidation tank. The bottom of the multiphase fluidization Fenton oxidation tank is lifted to the top of the Fenton catalytic filler under the action of the air lift pump, the flowing of a catalyst is realized, the service efficiency and the service life of the Fenton catalytic filler are increased, and the reflux pump is used for refluxing waste water at the top of the multiphase fluidization Fenton oxidation tank to the bottom of the multiphase fluidization Fenton oxidation tank to provide extra power for the fluidization of the Fenton catalytic filler.
The sedimentation tank top is located to pH adjusting tank and coagulating basin, all is equipped with mixer 20 in pH adjusting tank and the coagulating basin, is equipped with pipe chute packing layer 801 in the sedimentation tank, and the sedimentation tank bottom is equipped with sludge pump 802.
The bottom of the middle water tank is provided with an aeration pipe, and the top of the middle water tank is provided with a middle water tank lifting pump 21.
The sponge packing layer is internally provided with sponge packing which is hung in a strip shape, the filling rate of the sponge packing ranges from 30% to 40%, the bottom of the first reinforced aerobic sludge membrane pool and the bottom of the second reinforced aerobic sludge membrane pool are both provided with aeration pipes, and a water distribution pipe is arranged between each aeration pipe and the sponge packing layer. The sponge filler is a biological enrichment filler with high porosity and is a commercially available product, the filler can better enrich aerobic microorganisms to form a thicker biological film, an anoxic environment is caused inside the film, the sponge filler is suitable for the growth of different types of microorganisms, pollutants in wastewater can be synchronously and efficiently removed through aerobic and anoxic ways, and partial nitrogen and phosphorus pollutants can be effectively removed.
The top of the secondary sedimentation tank is provided with a sludge reflux pump 1302, the sludge reflux pump is connected with a sludge reflux pipe, and the sludge reflux pipe is respectively communicated with the secondary sedimentation tank, the hydrolysis acidification tank, the secondary sedimentation tank, the first strengthened aerobic sludge film tank, the secondary sedimentation tank and the second strengthened aerobic sludge film tank.
A method for treating the traditional Chinese medicine decoction wastewater by adopting the integrated treatment device for the traditional Chinese medicine decoction wastewater, which comprises the following steps,
(1) pumping the primarily filtered traditional Chinese medicine decoction wastewater into an adjusting tank, and controlling a dosing assembly to dose dilute sulfuric acid into the adjusting tank through an electric control assembly, wherein the pH value of the wastewater in the adjusting tank ranges from 3 to 3.5;
(2) pumping the wastewater in the step (1) into a micro-electrolysis reaction tank, and controlling the air-water ratio to be 3-7 for aeration in the micro-electrolysis reaction tank: 1, carrying out oxidation decomposition on the wastewater by an electrochemical reaction of the micro-electrolysis filler layer under an acidic condition, and staying the wastewater in a micro-electrolysis reaction tank for 1-2.5 hours;
(3) the wastewater in the step (2) flows into a multiphase fluidization Fenton oxidation pond, aeration is carried out in the multiphase fluidization Fenton oxidation pond, and the air-water ratio is controlled to be 5-10: adding hydrogen peroxide into the multiphase fluidized Fenton oxidation tank by controlling the medicine adding assembly through the electric control assembly, wherein the adding amount is 0.1-0.4% (v/v), so that ferrous ions in the wastewater in the step (2) and the hydrogen peroxide form a Fenton reagent to generate a Fenton oxidation reaction, and the wastewater stays in the multiphase fluidized Fenton oxidation tank for 0.5-1 h; under the action of Fenton catalytic filler, more strong oxidation free radicals are generated, and fiber and aromatic organic matters in the wastewater are further oxidized and degraded to form micromolecule easily degradable organic matters, so that a subsequent biochemical system is facilitated;
(4) the wastewater obtained in the step (3) sequentially enters a pH adjusting tank, a coagulation tank and a sedimentation tank, the wastewater respectively stays in the pH adjusting tank and the coagulation tank for 10-20 min, the electric control assembly controls the dosing assembly to dose liquid alkali into the pH adjusting tank, the pH value range in the tank is 7.5-8.5, the electric control assembly controls the dosing assembly to dose coagulant and flocculant into the coagulation tank, the wastewater stays in the sedimentation tank for 1-2 h, supernatant flows into an intermediate water tank, and sludge at the bottom of the sedimentation tank is discharged;
(5) the supernatant obtained in the step (4) stays in the intermediate water tank for 3-6 hours and then is pumped into a hydrolysis acidification tank;
(6) keeping the concentration of anaerobic activated sludge in the hydrolysis acidification tank at 15-25 g/L, and staying the wastewater in the hydrolysis acidification tank for 12-20 h; the hydrolytic acidification bacteria carry out reutilization and decomposition on the wastewater under the anaerobic condition, and hydrolyze macromolecular organic matters into micromolecules, so that the subsequent aerobic microorganisms can be conveniently utilized;
(7) the wastewater in the step (6) sequentially flows into a first enhanced aerobic sludge film pool and a second enhanced aerobic sludge film pool, the first enhanced aerobic sludge film pool and the second enhanced aerobic sludge film pool are respectively aerated, the concentration of dissolved oxygen in the pool is controlled to be 2.0-5.0 mg/L, the concentration of suspended aerobic activated sludge in the pool is controlled to be 4-7 g/L, the concentration of total activated sludge is 9-15 g/L, and the total residence time of the wastewater in the first enhanced aerobic sludge film pool and the second enhanced aerobic sludge film pool is 10-15 h;
(8) and (4) enabling the wastewater in the step (7) to flow into a secondary sedimentation tank, enabling the wastewater to stay in the secondary sedimentation tank for 3-5 hours, and enabling sludge at the bottom of the secondary sedimentation tank to flow back at a reflux ratio of 0.1-0.3: 1, refluxing to a hydrolysis acidification tank, and refluxing sludge at the bottom of a secondary sedimentation tank in a reflux ratio of 2-3: 1 reflowing to a first intensified aerobic sludge film tank and a second intensified aerobic sludge film tank, and discharging supernatant in a second sedimentation tank after reaching the standard.
Application example:
according to the method described in the embodiment, the Chinese medicine decoction wastewater with the indexes described in the table 1 is added into the integrated device described in the embodiment, the treatment amount is 10t/d, the water quality of inlet and outlet water is shown in the table 1 after the integrated device runs for 4 weeks stably.
TABLE 1 treatment of the effluent and effluent data of the apparatus of the example (treatment scale 10t/d)
The data in table 1 show that the device of the invention can effectively remove pollutants from the Chinese medicine decoction wastewater with various concentrations and water qualities, so that the Chinese medicine decoction wastewater is effectively treated and the effluent is stable; the invention also has synchronous removal effect on nitrogen and phosphorus pollutants in the traditional Chinese medicine decoction wastewater.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The integrated treatment device and method for the wastewater from traditional Chinese medicine decoction provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. An integrated treatment device for traditional Chinese medicine decoction wastewater, which is characterized in that: the integrated treatment device for the traditional Chinese medicine decoction wastewater comprises a water inlet dosing system, an electrochemical pretreatment system and a multi-stage biochemical treatment system which are sequentially connected; the water inlet and medicine adding system comprises a medicine adding assembly (1), an electric control assembly (2) and an adjusting tank (3), wherein the electric control assembly is electrically connected with the medicine adding assembly, and the medicine adding assembly is connected with the adjusting tank; the electrochemical pretreatment system comprises a micro-electrolysis reaction tank (4), a multi-phase fluidized Fenton oxidation tank (5), a pH adjusting tank (6), a coagulation tank (7), a sedimentation tank (8) and an intermediate water tank (9) which are sequentially connected, wherein a micro-electrolysis filler layer (401) is arranged in the micro-electrolysis reaction tank, a Fenton catalyst filler layer (501) is arranged in the multi-phase fluidized Fenton oxidation tank, and a dosing assembly is connected with the multi-phase fluidized Fenton oxidation tank, the pH adjusting tank and the coagulation tank; multistage biochemical treatment system including hydrolysis-acidification pool (10), first reinforce good oxygen mud membrane pond (11), the good oxygen mud membrane pond of second reinforcement (12) and two heavy ponds (13), all be equipped with sponge packing layer (1101) in the good oxygen mud membrane pond of first reinforcement and the good oxygen mud membrane pond of second reinforcement, two heavy ponds are equipped with sludge return pipe (1301) that are used for mud backward flow hydrolysis-acidification pool, first reinforce good oxygen mud membrane pond and the good oxygen mud membrane pond of second reinforcement.
2. The integrated treatment device for the wastewater of traditional Chinese medicine decoction according to claim 1, which is characterized in that: the dosing assembly comprises an acid adding component (101), an alkali adding component (102), a hydrogen peroxide adding component (103) and a coagulant and flocculant adding component (104), wherein the acid adding component is connected with an adjusting tank, the alkali adding component is connected with a pH adjusting tank, the hydrogen peroxide adding component is connected with a multiphase fluidized Fenton oxidation tank, and the coagulant and flocculant adding component is connected with a coagulation tank.
3. The integrated treatment device for the wastewater of traditional Chinese medicine decoction according to claim 1, which is characterized in that: the micro-electrolysis filler layer is internally provided with granular micro-electrolysis fillers, and the filling rate of the micro-electrolysis fillers ranges from 50% to 70%.
4. The integrated treatment device for the wastewater of traditional Chinese medicine decoction according to claim 1, which is characterized in that: the Fenton catalyst packing layer is internally provided with a Fenton catalytic packing, the filling rate of the Fenton catalytic packing ranges from 40% to 60%, and the Fenton catalytic packing is a particulate matter with the diameter of 2mm to 5 mm.
5. The integrated treatment device for the wastewater of traditional Chinese medicine decoction according to claim 1, which is characterized in that: the multi-phase fluidization Fenton oxidation pond is characterized in that an aeration pipe (14) is arranged at the bottom of the multi-phase fluidization Fenton oxidation pond, a water distribution pipe (15) is arranged between the aeration pipe and a Fenton catalyst packing layer, an air lift pump (16) and a reflux pump (17) are arranged at the top of the multi-phase fluidization Fenton oxidation pond, the air lift pump is provided with an air lift pipe (18) extending into the multi-phase fluidization Fenton oxidation pond, and the reflux pump is provided with a reflux pipe (19) extending into the bottom of the multi-phase.
6. The integrated treatment device for the wastewater of traditional Chinese medicine decoction according to claim 1, which is characterized in that: the pH adjusting tank and the coagulating tank are arranged above the sedimentation tank, the pH adjusting tank and the coagulating tank are internally provided with a stirrer (20), the sedimentation tank is internally provided with an inclined tube packing layer (801), and the bottom of the sedimentation tank is provided with a sludge pump (802).
7. The integrated treatment device for the wastewater of traditional Chinese medicine decoction according to claim 1, which is characterized in that: the bottom of the middle water tank is provided with an aeration pipe, and the top of the middle water tank is provided with a middle water tank lifting pump (21).
8. The integrated treatment device for the wastewater of traditional Chinese medicine decoction according to claim 1, which is characterized in that: the sponge packing layer is internally provided with sponge packing which is hung in a strip shape, the filling rate of the sponge packing ranges from 30% to 40%, the bottom of the first reinforced aerobic sludge membrane pool and the bottom of the second reinforced aerobic sludge membrane pool are both provided with aeration pipes, and a water distribution pipe is arranged between each aeration pipe and the sponge packing layer.
9. The integrated treatment device for the wastewater of traditional Chinese medicine decoction according to claim 1, which is characterized in that: the top of the secondary sedimentation tank is provided with a sludge reflux pump (1302), the sludge reflux pump is connected with a sludge reflux pipe, and the sludge reflux pipe is respectively communicated with the secondary sedimentation tank, the hydrolysis acidification tank, the secondary sedimentation tank, the first strengthened aerobic sludge film tank, the secondary sedimentation tank and the second strengthened aerobic sludge film tank.
10. A method for treating wastewater of traditional Chinese medicine decoction by using the integrated treatment device of wastewater of traditional Chinese medicine decoction of any one of claims 1 to 9, which is characterized in that: the method comprises the following specific steps of,
(1) pumping the primarily filtered traditional Chinese medicine decoction wastewater into an adjusting tank, and controlling a dosing assembly to dose dilute sulfuric acid into the adjusting tank through an electric control assembly, wherein the pH value of the wastewater in the adjusting tank ranges from 3 to 3.5;
(2) pumping the wastewater in the step (1) into a micro-electrolysis reaction tank, and controlling the air-water ratio to be 3-7 for aeration in the micro-electrolysis reaction tank: 1, carrying out oxidation decomposition on the wastewater by an electrochemical reaction of the micro-electrolysis filler layer under an acidic condition, and staying the wastewater in a micro-electrolysis reaction tank for 1-2.5 hours;
(3) the wastewater in the step (2) flows into a multiphase fluidization Fenton oxidation pond, aeration is carried out in the multiphase fluidization Fenton oxidation pond, and the air-water ratio is controlled to be 5-10: adding hydrogen peroxide into the multiphase fluidized Fenton oxidation tank by controlling the medicine adding assembly through the electric control assembly, wherein the adding amount is 0.1-0.4% (v/v), so that ferrous ions in the wastewater in the step (2) and the hydrogen peroxide form a Fenton reagent to generate a Fenton oxidation reaction, and the wastewater stays in the multiphase fluidized Fenton oxidation tank for 0.5-1 h;
(4) the wastewater obtained in the step (3) sequentially enters a pH adjusting tank, a coagulation tank and a sedimentation tank, the wastewater respectively stays in the pH adjusting tank and the coagulation tank for 10-20 min, the electric control assembly controls the dosing assembly to dose liquid alkali into the pH adjusting tank, the pH value range in the tank is 7.5-8.5, the electric control assembly controls the dosing assembly to dose coagulant and flocculant into the coagulation tank, the wastewater stays in the sedimentation tank for 1-2 h, supernatant flows into an intermediate water tank, and sludge at the bottom of the sedimentation tank is discharged;
(5) the supernatant obtained in the step (4) stays in the intermediate water tank for 3-6 hours and then is pumped into a hydrolysis acidification tank;
(6) keeping the concentration of anaerobic activated sludge in the hydrolysis acidification tank at 15-25 g/L, and staying the wastewater in the hydrolysis acidification tank for 12-20 h;
(7) the wastewater in the step (6) sequentially flows into a first enhanced aerobic sludge film pool and a second enhanced aerobic sludge film pool, the first enhanced aerobic sludge film pool and the second enhanced aerobic sludge film pool are respectively aerated, the concentration of dissolved oxygen in the pool is controlled to be 2.0-5.0 mg/L, the concentration of suspended aerobic activated sludge in the pool is controlled to be 4-7 g/L, the concentration of total activated sludge is 9-15 g/L, and the total residence time of the wastewater in the first enhanced aerobic sludge film pool and the second enhanced aerobic sludge film pool is 10-15 h;
(8) and (4) enabling the wastewater in the step (7) to flow into a secondary sedimentation tank, enabling the wastewater to stay in the secondary sedimentation tank for 3-5 hours, and enabling sludge at the bottom of the secondary sedimentation tank to flow back at a reflux ratio of 0.1-0.3: 1, refluxing to a hydrolysis acidification tank, and refluxing sludge at the bottom of a secondary sedimentation tank in a reflux ratio of 2-3: 1 reflowing to a first intensified aerobic sludge film tank and a second intensified aerobic sludge film tank, and discharging supernatant in a second sedimentation tank after reaching the standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010238973.4A CN111253018A (en) | 2020-03-30 | 2020-03-30 | Integrated treatment device and method for traditional Chinese medicine decoction wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010238973.4A CN111253018A (en) | 2020-03-30 | 2020-03-30 | Integrated treatment device and method for traditional Chinese medicine decoction wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111253018A true CN111253018A (en) | 2020-06-09 |
Family
ID=70944463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010238973.4A Pending CN111253018A (en) | 2020-03-30 | 2020-03-30 | Integrated treatment device and method for traditional Chinese medicine decoction wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111253018A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030173306A1 (en) * | 2002-03-14 | 2003-09-18 | Cha Daniel K. | Process and system for treating waste from the production of energetics |
| CN101700948A (en) * | 2009-11-20 | 2010-05-05 | 上海应用技术学院 | Wastewater treatment technology for textile dyeing and finishing industry |
| CN102583736A (en) * | 2012-01-30 | 2012-07-18 | 湖北君集水处理有限公司 | Sewage biochemical treatment process and device utilizing active sludge and biological membrane combined circulating flow |
| CN103011525A (en) * | 2012-12-31 | 2013-04-03 | 宜兴市银环电力电子科技有限公司 | Anaerobic biochemical sewage treatment system and method |
| CN104829045A (en) * | 2015-04-21 | 2015-08-12 | 南通大恒环境工程有限公司 | Method for treating high-concentration chemical wastewater |
| CN204981513U (en) * | 2015-08-29 | 2016-01-20 | 中山市中开环保设备制造有限公司 | Treatment unit for pesticide -containing wastewater |
| CN205346927U (en) * | 2016-01-26 | 2016-06-29 | 山东芬顿环保科技有限公司 | Fenton reactor |
| CN106277648A (en) * | 2016-09-29 | 2017-01-04 | 广州绿日环保科技有限公司 | A kind of high salinity waste water processing means and method of wastewater treatment thereof |
| CN106927628A (en) * | 2017-03-02 | 2017-07-07 | 南昌大学 | Light electrolysis-Fenton-EGSB-A/O-BCO-BAF-coagulating treatment pharmacy waste water technique |
| CN206580712U (en) * | 2017-03-22 | 2017-10-24 | 湖南永清水务有限公司 | A kind of device for being used to handle livestock breeding wastewater |
| CN108706787A (en) * | 2018-08-16 | 2018-10-26 | 台州学院 | A kind of Fenton oxidation device |
| CN108751599A (en) * | 2018-06-25 | 2018-11-06 | 江苏宜裕环保科技有限公司 | A kind of method of high-performance bio strain processing glufosinate-ammonium agricultural chemicals waste water |
| KR101947687B1 (en) * | 2017-09-06 | 2019-02-14 | (주) 테크로스 | Water treatment device using electrolysis and heterogeneous catalytic oxidation reaction |
| CN208916960U (en) * | 2018-08-16 | 2019-05-31 | 台州学院 | A kind of Fenton oxidation device |
| CN209010325U (en) * | 2018-08-09 | 2019-06-21 | 江苏中电创新环境科技有限公司 | A kind of complete processing equipment of Wastewater in Biologic Pharmacy zero-emission |
-
2020
- 2020-03-30 CN CN202010238973.4A patent/CN111253018A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030173306A1 (en) * | 2002-03-14 | 2003-09-18 | Cha Daniel K. | Process and system for treating waste from the production of energetics |
| CN101700948A (en) * | 2009-11-20 | 2010-05-05 | 上海应用技术学院 | Wastewater treatment technology for textile dyeing and finishing industry |
| CN102583736A (en) * | 2012-01-30 | 2012-07-18 | 湖北君集水处理有限公司 | Sewage biochemical treatment process and device utilizing active sludge and biological membrane combined circulating flow |
| CN103011525A (en) * | 2012-12-31 | 2013-04-03 | 宜兴市银环电力电子科技有限公司 | Anaerobic biochemical sewage treatment system and method |
| CN104829045A (en) * | 2015-04-21 | 2015-08-12 | 南通大恒环境工程有限公司 | Method for treating high-concentration chemical wastewater |
| CN204981513U (en) * | 2015-08-29 | 2016-01-20 | 中山市中开环保设备制造有限公司 | Treatment unit for pesticide -containing wastewater |
| CN205346927U (en) * | 2016-01-26 | 2016-06-29 | 山东芬顿环保科技有限公司 | Fenton reactor |
| CN106277648A (en) * | 2016-09-29 | 2017-01-04 | 广州绿日环保科技有限公司 | A kind of high salinity waste water processing means and method of wastewater treatment thereof |
| CN106927628A (en) * | 2017-03-02 | 2017-07-07 | 南昌大学 | Light electrolysis-Fenton-EGSB-A/O-BCO-BAF-coagulating treatment pharmacy waste water technique |
| CN206580712U (en) * | 2017-03-22 | 2017-10-24 | 湖南永清水务有限公司 | A kind of device for being used to handle livestock breeding wastewater |
| KR101947687B1 (en) * | 2017-09-06 | 2019-02-14 | (주) 테크로스 | Water treatment device using electrolysis and heterogeneous catalytic oxidation reaction |
| CN108751599A (en) * | 2018-06-25 | 2018-11-06 | 江苏宜裕环保科技有限公司 | A kind of method of high-performance bio strain processing glufosinate-ammonium agricultural chemicals waste water |
| CN209010325U (en) * | 2018-08-09 | 2019-06-21 | 江苏中电创新环境科技有限公司 | A kind of complete processing equipment of Wastewater in Biologic Pharmacy zero-emission |
| CN108706787A (en) * | 2018-08-16 | 2018-10-26 | 台州学院 | A kind of Fenton oxidation device |
| CN208916960U (en) * | 2018-08-16 | 2019-05-31 | 台州学院 | A kind of Fenton oxidation device |
Non-Patent Citations (3)
| Title |
|---|
| 中国造纸学会: "《中国造纸年鉴 2010》", 31 August 2010, 中国轻工业出版社 * |
| 刘雪梅等: "《分子生态学概论》", 31 March 2012, 哈尔滨工业大学出版社 * |
| 尹奇德等: "《环境工程实验》", 31 August 2009, 华中科技大学出版 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102276108A (en) | Livestock/poultry biogas slurry purification device and method | |
| CN108383320B (en) | Integrated treatment method for livestock and poultry breeding wastewater | |
| CN114084998A (en) | Rubbish transfer station waste water and domestic sewage cooperative processing system | |
| CN209906566U (en) | IV-type water discharge standard domestic sewage treatment device | |
| CN108862849A (en) | The treatment process and processing system of Almond debitterizing wastewater | |
| CN206069649U (en) | Integrated sewage disposal water cleaning systems | |
| CN215403640U (en) | Sewage treatment system for releasing sludge carbon source by utilizing sludge biological method of sewage plant | |
| CN111253018A (en) | Integrated treatment device and method for traditional Chinese medicine decoction wastewater | |
| CN213865851U (en) | Domestic sewage treatment station | |
| CN214496045U (en) | High-efficient hypoxemia MBBR sewage treatment integration equipment | |
| CN213950897U (en) | Integrated sewage treatment equipment | |
| CN212687845U (en) | Pharmaceutical wastewater comprehensive treatment device | |
| CN210505967U (en) | High concentration maleic anhydride effluent treatment plant | |
| CN210193608U (en) | Livestock and poultry breeding biogas slurry treatment system | |
| CN203866153U (en) | Improved reinforced A2/O denitrogenation and dephosphorization treating device for municipal sewage | |
| CN209759234U (en) | Integrated sewage treatment device | |
| CN209242868U (en) | A kind of combined system handling dyeing waste water | |
| CN206219378U (en) | A kind of integrated sewage treating apparatus | |
| CN205710325U (en) | Energy-saving culturing wastewater processing system | |
| CN215208973U (en) | Integrated anaerobic-micro-aerobic-MBR (membrane bioreactor) sewage treatment system | |
| CN204848581U (en) | Effluent disposal system of configuration pressure swing adsorption oxygenerator | |
| CN204727726U (en) | A kind of pesticide wastewater biological treatment combination unit | |
| CN217732905U (en) | High-efficient nitrogen and phosphorus removal integration sewage treatment device | |
| CN217230486U (en) | Domestic sewage integration treatment facility | |
| CN212713182U (en) | Multistage combined type chemical industry high difficulty waste water zero release processing system |
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: 20200609 |
|
| RJ01 | Rejection of invention patent application after publication |