CN110713282B - Laboratory organic waste liquid treatment method and system - Google Patents
Laboratory organic waste liquid treatment method and system Download PDFInfo
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- CN110713282B CN110713282B CN201810769243.XA CN201810769243A CN110713282B CN 110713282 B CN110713282 B CN 110713282B CN 201810769243 A CN201810769243 A CN 201810769243A CN 110713282 B CN110713282 B CN 110713282B
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- 239000007788 liquid Substances 0.000 title claims abstract description 170
- 239000010815 organic waste Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000004062 sedimentation Methods 0.000 claims abstract description 72
- 238000003860 storage Methods 0.000 claims abstract description 58
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 57
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 55
- 230000003647 oxidation Effects 0.000 claims abstract description 54
- 238000005189 flocculation Methods 0.000 claims abstract description 40
- 230000016615 flocculation Effects 0.000 claims abstract description 40
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 33
- 239000002699 waste material Substances 0.000 claims abstract description 29
- 238000001556 precipitation Methods 0.000 claims abstract description 9
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000005273 aeration Methods 0.000 claims description 22
- 239000007921 spray Substances 0.000 claims description 18
- 239000000706 filtrate Substances 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 10
- 230000001590 oxidative effect Effects 0.000 claims description 10
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 239000012716 precipitator Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 239000008394 flocculating agent Substances 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- 238000012958 reprocessing Methods 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000000356 contaminant Substances 0.000 claims 1
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- 238000013461 design Methods 0.000 abstract description 3
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- 238000004064 recycling Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000003672 processing method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000002920 hazardous waste Substances 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000010805 inorganic waste Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
- B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/305—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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
-
- 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
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a laboratory organic waste liquid treatment method and system, and belongs to the technical field of environmental protection equipment. The processing method comprises the following steps: 1) laboratory organic waste liquid collection and temporary storage, 2) pH value adjustment, 3) precipitation, 4) flocculation and sedimentation, 5) reverse osmosis, 6) oxidation and 7) post treatment; the processing system comprises: the device is sequentially connected with a collecting tank, a classifying temporary storage tank, a neutralizing tank, a sedimentation tank, a flocculation tank, a sedimentation tank, a reverse osmosis tank and a super oxidation tank. The method and the system are arranged, and the laboratory organic waste liquid is fully treated step by step through acid-base neutralization, precipitation, flocculation, sedimentation, reverse osmosis and supercritical oxidation, so that the treatment efficiency is high, the harm to the environment is reduced, waste is changed into valuable, and the recycling of the organic waste liquid is realized; meanwhile, the system is reasonable in design and can be freely adjusted and assembled according to requirements.
Description
Technical Field
The invention relates to a waste liquid treatment method and a system, in particular to a laboratory organic waste liquid treatment method and a laboratory organic waste liquid treatment system, and belongs to the technical field of environmental protection equipment.
Background
Since the innovation is opened, the economy of China is rapidly increased, various constructions get great achievements, but huge resources and environmental costs are paid, and the contradiction between the economic development and the resource environment is gradually sharp. At present, ecological damage and environmental pollution in China reach a quite serious degree, and economic and social development must be promoted in an environment-friendly way for sustainable development. In 2007, ecological civilization construction has become a great measure for the powerful propulsion of various levels of government in China, and has become a focus of media and social attention.
Laboratory is specially set up in universities, hospitals, scientific research institutions and other unit research departments to conduct a great deal of researches on chemistry, biology, medical care, pesticides and the like, and toxic and harmful solid, liquid and gaseous pollutants are produced every day. The total amount of waste liquid produced by a laboratory every year is relatively small, but the waste liquid belongs to environmental pollutants with high toxicity, complex components and difficult treatment, the waste liquid yield of a small and medium-sized laboratory is small, the production time is variable, and the ideal treatment effect is difficult to obtain by adopting the traditional industrial waste water treatment process. At present, most of laboratory waste liquid is directly discharged or intensively diluted and discharged, the environment is seriously polluted, and the treatment technology has the problems of high treatment cost, difficult effective treatment of combustion tail gas and the like.
The laboratory waste liquid can be generally classified into organic waste liquid and inorganic waste liquid, wherein the laboratory organic waste liquid is mainly laboratory waste liquid generated in the operation processes of extraction, dissolution and the like in the detection and research experiment processes of each laboratory, generally contains organic pollutants, also contains pollutants such as heavy metals, acids, alkalis and the like according to different samples, detection processes and methods, and has very complex components. At present, organic waste liquid in laboratories is mainly entrusted to be treated by qualified hazardous waste treatment units, but because the production of each laboratory is small, the treatment difficulty is high, the treatment enthusiasm of each hazardous waste treatment unit is not high, so that the organic waste liquid produced in a plurality of laboratories cannot be treated in time, and a large amount of organic waste liquid in the laboratories is stored in the laboratories, so that great potential safety hazards exist. Even individual laboratories have the phenomenon of privately dumping, which is a great hazard to the environment.
The main process for treating laboratory organic waste liquid by the existing hazardous waste treatment unit mostly adopts an incineration treatment mode, and has the problems of environmental pollution and the like caused by malodorous substances, volatile organic substances, dioxin pollution, nitrogen oxides, metal ions and the like in waste gas in the incineration process, so that the efficient and thorough treatment of laboratory organic waste liquid is a problem which needs to be solved in the field.
An invention patent document with publication number of CN107082531A, named "a method for treating laboratory organic waste liquid and an apparatus thereof" is disclosed in 2017, month 08 and 22. In this patent document, it is disclosed that: comprises an organic waste liquid storage tank, a Fenton oxidation reactor, a reaction precipitator, a mixing tank, an EGSB reactor, a contact oxidation reactor, a secondary sedimentation tank and Fe 2+ Solution storage tank H 2 O 2 The device comprises a storage tank, an acid liquid storage tank, an alkali liquid storage tank, a sodium bicarbonate storage tank, a polyaluminium chloride storage tank, a polyacrylamide storage tank and a sludge concentration tank, wherein the organic waste liquid storage tank is connected with a Fenton oxidation reactor through a liquid adding pump, and Fe 2+ +solution tank, H 2 O 2 The storage tank, the acid liquid storage tank and the alkali liquid storage tank are respectively connected with a Fenton oxidation reactor through a feed pump, and the Fenton oxidation reactor is provided with a liquid outlet and a slag discharge port. The invention patent document with the name of "a laboratory organic waste liquid treatment device" is disclosed in 2014, 10 and 29, and has the publication number of CN 203904085U. In this patent document, it is disclosed that: the device comprises a liquid collecting bottle, wherein a first air inlet, a first liquid inlet and a first liquid outlet are formed in the liquid collecting bottle, a first piston is arranged in the liquid collecting bottle, the first air inlet is connected with a first air supply pump through a first air pipeline, and the first air pipeline is communicated with a first branch pipe provided with a first valve body; the sedimentation bottle comprises an outer bottle body and an inner bottle body, a second piston is arranged in the inner bottle body, and a second liquid inlet, a second liquid outlet and a third air inlet are formed in the sedimentation bottle; the filter flask is provided with a third liquid outlet and a third liquid outletThe liquid inlet is filled with chromatographic silica gel with 300-400 meshes in the filter flask; the organic waste liquid enters from the first liquid inlet, is treated by the liquid collecting bottle, the sedimentation bottle and the filter bottle in sequence, and is discharged from the third liquid outlet. The publication No. CN104370423a, published 25 in 02 month 2015, is entitled "laboratory waste liquid treatment apparatus", which discloses: comprises a plurality of waste liquid classifying storage tanks, a redox reactor, a mixing tank, a pH regulating tank, a micro-electrolysis reactor, a hydrolysis acidification reactor, a DN aeration biological filter, a C/N aeration biological filter, an inclined plate sedimentation tank, a sludge concentration tank, a plurality of medicine storage tanks and a box type filter press; the device uses the collected waste acid liquid as a medicament of the treatment device to adjust the pH value; the waste liquid is classified and pretreated by an oxidation-reduction reactor, then mixed and then subjected to physical and chemical treatment and biochemical treatment to further remove pollutants in water, and the waste liquid is discharged after reaching standards; the sludge is treated by a dewatering device to form a mud cake, and then is treated according to the regulation. The device can treat the high-concentration laboratory waste liquid, saves engineering investment, occupies small area and is convenient to operate and manage. Can effectively remove COD, ammonia nitrogen, phosphorus and heavy metals, and the average removal rate is more than 99.5 percent.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a laboratory organic waste liquid treatment method and system. The system has reasonable design, can be freely adjusted and assembled according to requirements, fully processes the laboratory organic waste liquid, has high processing efficiency, reduces the harm to the environment, changes waste into valuable, and realizes the recycling of the organic waste liquid.
In order to achieve the technical purpose, the following technical scheme is provided:
a laboratory organic waste liquid treatment method, comprising the following steps:
1) Collecting and temporarily storing: collecting various laboratory organic waste liquid in a collecting tank through a collecting hopper, regulating the temperature in the collecting tank by a heating coil and a condensing coil in the collecting tank, stirring by a stirring device, eliminating foam generated in the stirring process by a defoaming device, and collecting and primarily treating the laboratory organic waste liquid;
finally, the collected and primarily treated laboratory organic waste liquid is respectively conveyed into a sorting temporary storage tank through a conveying pipe I; filtering in a temporary storage tank by a filter screen to obtain filtrate;
2) Adjusting the pH value: conveying the filtrate obtained in the step 1) into a neutralization tank through a conveying pipe II, and turning on a stirring device in the neutralization tank, and adjusting the pH value of the filtrate through an acidity regulator and an alkalinity regulator;
3) Precipitation: conveying the filtrate subjected to the pH value adjustment in the step 2) into a sedimentation tank through a conveying pump, and opening a spray pipe filled with a precipitator for spraying; finally, a water inlet pipe and a water outlet pipe are opened to form a water circulation channel, and the sediment is washed and discharged;
4) Flocculation and sedimentation: conveying the liquid discharged in the step 3) into a flocculation tank through a conveying pipe III, adding a flocculating agent into the flocculation tank, and flocculating; then, the residual waste liquid flows into a sedimentation tank through a cyclone separator, and aeration is carried out in the sedimentation tank through an aeration pipe;
5) Reverse osmosis: delivering the waste liquid after the aeration in the step 4) to a centrifugal tank for centrifugation, and delivering the upper layer waste liquid to a reverse osmosis tank; in the reverse osmosis pond, a filtering device filters, and the membrane structure carries out reverse osmosis to obtain thin liquid and thick liquid, the thin liquid is discharged, and the thick liquid is reserved;
5) Oxidizing: conveying the concentrated solution obtained in the step 5) to an oxidation pond; in the oxidation tank, high temperature is provided by a high-temperature processor, high pressure is provided by a high-pressure processor, and an oxidant is added into the oxidation tank to obtain pollutants-free H2O, CO2, N2 and the like;
6) Post-treatment: collecting ash matters generated in the steps 1) to 5), classifying, subpackaging, recovering and reprocessing.
On the basis of the laboratory organic waste liquid treatment method, the following treatment system is provided:
a laboratory organic waste liquid treatment system comprises a collecting tank, a classifying temporary storage tank, a neutralization tank, a sedimentation tank, a flocculation tank, a sedimentation tank, a reverse osmosis tank and an oxidation tank which are connected in sequence,
the collecting tank is provided with: the device comprises a tank body and a jacket arranged in the tank body, wherein a heating coil and a condensing coil are sleeved in the jacket, a stirring device is also arranged in the tank body, and a defoaming device is arranged at the end part of the stirring device; the top of the tank body is connected with a collecting hopper, and a valve is arranged between the collecting hopper and the tank body;
classified temporary storage tank: the bottom of the tank body is provided with a liquid outlet I, the liquid outlet I is connected with the classified temporary storage tank through a conveying pipe I, and the conveying pipe I is provided with a return valve; a filter screen is arranged in the classification temporary storage tank;
and (3) a neutralization pond: a liquid outlet II is arranged on the classification temporary storage tank, the liquid outlet II is connected with the neutralization tank through a conveying pipe II, and a ball valve is arranged on the conveying pipe II; the neutralization tank is provided with an acidity regulator and an alkalinity regulator, and a stirring device is arranged in the neutralization tank;
and (3) a sedimentation tank: the neutralization tank is connected with the sedimentation tank through a delivery pump, the sedimentation tank is connected with a water inlet pipe and a water outlet pipe, a spray pipe is arranged above the sedimentation tank, and a spray head is arranged on the spray pipe;
flocculation basin: the sedimentation tank is connected with the flocculation tank through a conveying pipe III, and a partition board is arranged in the flocculation tank;
a sedimentation tank: the flocculation tank is connected with the sedimentation tank, a cyclone separator is arranged between the flocculation tank and the sedimentation tank, an aeration pipe is arranged in the sedimentation tank, and the aeration pipe is connected with an ozone generator;
reverse osmosis cell: the sedimentation tank is connected with the reverse osmosis tank, and a centrifugal tank is arranged between the sedimentation tank and the reverse osmosis tank; a filtering device and a reverse osmosis device are arranged in the reverse osmosis tank, and a thin liquid outlet and a thick liquid outlet are arranged on the reverse osmosis tank;
oxidation pond: the reverse osmosis tank is connected with the oxidation tank through a concentrated liquid outlet, and a supercritical oxidation device is arranged in the oxidation tank and comprises a high-temperature processor and a high-pressure processor.
Further, there are a plurality of collection tanks, categorised temporary storage tank corresponds with there being collection tank quantity.
Further, a safety valve and a sampling port are arranged on the collecting tank.
Further, a guide plate is arranged in the collecting hopper.
Further, the collecting hopper is V-shaped.
Further, the neutralization tank is connected with a pH meter.
Further, the acidity regulator is connected with an acid liquid storage tank, and the alkalinity regulator is connected with an alkali liquid storage tank.
Further, an adsorption device is arranged at the bottom of the sedimentation tank.
Further, the reverse osmosis device comprises a membrane structure.
Further, the reverse osmosis tank is connected with a sterilizer, and the sterilizer is an ozone generator or an ultraviolet generator.
The invention has the following beneficial technical effects:
1) The method and the system are arranged, and the laboratory organic waste liquid is fully treated step by step through collection, temporary storage, acid-base neutralization, precipitation, flocculation, sedimentation, reverse osmosis, supercritical oxidation and the like, so that the treatment efficiency is high, the harm to the environment is reduced, waste is changed into valuable, and the recycling of the organic waste liquid is realized; meanwhile, the system is reasonable in design and convenient to adjust and assemble;
2) According to the type and the characteristics of the organic waste liquid in the laboratory, the treatment tanks in the treatment system can be adjusted smoothly and in a connection relation so as to adapt to the type and the characteristics of the organic waste liquid in the laboratory, and further, the effective and finished waste liquid treatment is finished;
3) In the invention, the treatment method and the system treat the laboratory organic waste liquid completely and thoroughly, and finish the treatment process with high efficiency and high quality;
4) In the invention, the impurities such as metal ions, suspended matters and the like in the laboratory organic waste liquid are removed by precipitation and flocculation; removing salt in the laboratory organic waste liquid by utilizing a membrane structure in the reverse osmosis tank; the supercritical oxidation treatment device is used for treating laboratory organic waste liquid, and oxygen or hydrogen peroxide is used as an oxidant under high temperature and high pressure conditions to directly convert organic matters into substances such as H2O, CO, N2 and the like.
The concentrated solution after membrane treatment is completely oxidized by the oxidation action of an oxidation pond in the treatment system to obtain clean substances such as H2O, CO, N2 and the like, S, P and the like are converted into salts which are stably placed in the highest valence, and a heavy metal oxidation stable solid phase exists in ash; the supercritical oxidation treatment device is utilized to treat the laboratory organic waste liquid, the treatment is thorough, almost all organic pollutants are converted into substances such as H2O, CO, N2 and the like, other substances enter ash, and then a qualification unit is entrusted to further treat, so that the environment of a treatment site is basically not influenced, and secondary pollution is not caused.
Drawings
FIG. 1 is a schematic view of the structure of the present invention
FIG. 2 is a schematic view of a collecting tank according to the present invention
In the figure, 1, a collecting tank, 2, a classification temporary storage tank, 3, a neutralization tank, 4, a sedimentation tank, 5, a flocculation tank, 6, a sedimentation tank, 7, a reverse osmosis tank, 8, an oxidation tank, 9, a tank body, 10, a jacket, 11, a heating coil, 12, a condensation coil, 13, a stirring device, 14, a defoaming device, 15, a collecting hopper, 16, a valve, 17, a liquid outlet I, 18, a conveying pipe I, 19, a backstop valve, 20, a filter screen, 21, a liquid outlet II, 22, a conveying pipe II, 23, a ball valve, 24, an acidity regulator, 25, a conveying pump, 26, a water inlet pipe, 27, a water outlet pipe, 28, a spray pipe, 29, a spray head, 30, a conveying pipe III, 31, a partition board, 32, a cyclone separator, 33, an aerator pipe, 34, an ozone generator, 35, a centrifugal tank, 36, a filtering device, 37, a reverse osmosis device, 38, a dilute liquid outlet, 39, a concentrated liquid outlet, 40, a supercritical oxidation device, 41, a safety valve, 42, a sampling port, 43, a deflector, 44, a pH meter, a storage tank, a 45, a storage tank, an adsorption device, an alkalinity regulator, a storage tank, and an alkalinity regulator.
Detailed Description
In the following, it is obvious that the embodiments described are only some embodiments of the present invention, but not all embodiments, by clearly and completely describing the technical solutions in the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
A laboratory organic waste liquid treatment method, comprising the following steps:
1) Collecting and temporarily storing: collecting various laboratory organic waste liquid in a collecting tank 1 through a collecting hopper 15, regulating the temperature in the collecting tank by a heating coil 11 and a condensing coil 12 in the collecting tank, stirring by a stirring device 13, eliminating foam generated in the stirring process by a defoaming device 14, and collecting and primarily treating the laboratory organic waste liquid;
finally, the collected and primarily treated laboratory organic waste liquid is respectively conveyed into a classification temporary storage tank 2 through a conveying pipe I18; in the temporary storage tank, a filter screen 20 filters to obtain filtrate;
2) Adjusting the pH value: conveying the filtrate obtained in the step 1) into a neutralization tank 3 through a conveying pipe II 22, opening a stirring device 13 in the neutralization tank 3, and simultaneously adjusting the pH value of the filtrate through an acidity regulator 24 and an alkalinity regulator 50;
3) Precipitation: conveying the filtrate subjected to the pH value adjustment in the step 2) into a sedimentation tank 4 through a conveying pump 25, opening a spray pipe 28 filled with a precipitator, and spraying; finally, a water inlet pipe 26 and a water outlet pipe 27 are opened to form a water circulation channel, washing sediment and draining liquid;
4) Flocculation and sedimentation: conveying the liquid discharged in the step 3) into a flocculation tank 5 through a conveying pipe III 30, and adding a flocculating agent into the flocculation tank 5 for flocculation; then, the residual waste liquid flows into the sedimentation tank 6 again through the cyclone separator 32, and aeration is carried out in the sedimentation tank 6 by the aeration pipe 33;
5) Reverse osmosis: delivering the waste liquid after the aeration in the step 4) to a centrifugal tank 35 for centrifugation, and delivering the upper layer waste liquid to a reverse osmosis tank 7; in the reverse osmosis tank 7, the filtering device 36 filters, the membrane structure reverse osmosis is carried out, so that thin liquid and thick liquid are obtained, the thin liquid is discharged, and the thick liquid is reserved;
5) Oxidizing: conveying the concentrated solution obtained in the step 5) to an oxidation pond; in the oxidation tank, high temperature is provided by a high-temperature processor, high pressure is provided by a high-pressure processor, and an oxidant is added into the oxidation tank to obtain pollutants-free H2O, CO2, N2 and the like;
6) Post-treatment: collecting ash matters generated in the steps 1) to 5), classifying, subpackaging, recovering and reprocessing.
Example 2
The laboratory organic waste liquid treatment system comprises a collecting tank 1, a classifying temporary storage tank 2, a neutralizing tank 3, a sedimentation tank 4, a flocculation tank 5, a sedimentation tank 6, a reverse osmosis tank 7 and an oxidation tank which are sequentially connected, wherein the collecting tank 1 comprises a tank body 9 and a jacket 10 arranged in the tank body 9, a heating coil 11 and a condensing coil 12 are sleeved in the jacket 10, a stirring device 13 is further arranged in the tank body 9, and a defoaming device 14 is arranged at the end part of the stirring device 13; the top of the tank body 9 is connected with a collecting hopper 15, and a valve 16 is arranged between the collecting hopper 15 and the tank body 9; the bottom of the tank body 9 is provided with a liquid outlet I17, the liquid outlet I17 is connected with the sorting temporary storage tank 2 through a conveying pipe I18, and the conveying pipe I18 is provided with a return valve 19; a filter screen 20 is arranged in the classified temporary storage tank 2, a liquid outlet II 21 is arranged on the classified temporary storage tank 2, the liquid outlet II 21 is connected with the neutralization tank 3 through a conveying pipe II 22, and a ball valve 23 is arranged on the conveying pipe II 22; the neutralization tank 3 is provided with an acidity regulator 24 and an alkalinity regulator 50, a stirring device 13 is arranged in the neutralization tank 3, and the neutralization tank 3 is connected with the sedimentation tank 4 through a conveying pump 25; a spray pipe 28 is arranged above the sedimentation tank 4, a spray nozzle 29 is arranged on the spray pipe 28, and the sedimentation tank 4 is also connected with a water inlet pipe 26 and a water outlet pipe 27; the flocculation tank 5 is connected with the sedimentation tank 4 through a conveying pipe III 30, and a baffle 31 is arranged in the flocculation tank 5; the sedimentation tank 6 is connected with the flocculation tank 5 through a cyclone separator 32, an aeration pipe 33 is arranged in the sedimentation tank 6, and the aeration pipe 33 is connected with an ozone generator 34; a centrifugal tank 35 is arranged between the reverse osmosis tank 7 and the sedimentation tank 6, a filtering device 36 and a reverse osmosis device 37 are arranged in the reverse osmosis tank 7, and a thin liquid outlet 38 and a thick liquid outlet 39 are arranged on the reverse osmosis tank 7; the oxidation pond is connected with the reverse osmosis pond 7 through a concentrated solution outlet 39, a supercritical oxidation device 40 and a sampling port 42I are arranged in the oxidation pond, and the supercritical oxidation device 40 comprises a high-temperature processor and a high-pressure processor; the oxidation tank is connected with a separate tank.
Example 3
On the basis of embodiment 2, this embodiment further includes: there are two collection tanks 1, two classification temporary storage tanks 2; the collecting tank 1 is provided with a safety valve 41 and a sampling port 42 II, and the collecting hopper 15 is internally provided with a guide plate 43.
Example 4
On the basis of embodiment 3, the difference from this embodiment is that: three collection tanks 1 and three classification temporary storage tanks 2 are provided; and this embodiment further includes: the collecting hopper 15 is V-shaped, the neutralization tank 3 is connected with a pH meter 44, the acidity regulator 24 is connected with an acid liquor storage tank 45, and the alkalinity regulator 50 is connected with an alkali liquor storage tank 46.
Example 5
On the basis of embodiment 4, this embodiment further includes: the bottom of the sedimentation tank 4 is provided with an adsorption device 47.
Example 6
On the basis of embodiment 5, the difference from this embodiment is that: five collection tanks 1 and five classification temporary storage tanks 2 are provided; and this embodiment further includes: the reverse osmosis unit 37 comprises a membrane structure.
Example 7
On the basis of embodiments 2 to 6, this embodiment further includes: the reverse osmosis tank 7 is connected with a sterilizer 49, and the sterilizer 49 is an ozone generator 34.
Example 8
On the basis of embodiment 7, the difference from this embodiment is that: the sterilizer 49 is an ultraviolet generator.
Example 9
As shown in fig. 1-2: a laboratory organic waste liquid treatment method, comprising the following steps:
1) Collecting and temporarily storing: collecting various laboratory organic waste liquid in a collecting tank 1 through a collecting hopper 15, regulating the temperature in the collecting tank by a heating coil 11 and a condensing coil 12 in the collecting tank, stirring by a stirring device 13, eliminating foam generated in the stirring process by a defoaming device 14, and collecting and primarily treating the laboratory organic waste liquid;
finally, the collected and primarily treated laboratory organic waste liquid is respectively conveyed into a classification temporary storage tank 2 through a conveying pipe I18; in the temporary storage tank, a filter screen 20 filters to obtain filtrate;
2) Adjusting the pH value: conveying the filtrate obtained in the step 1) into a neutralization tank 3 through a conveying pipe II 22, opening a stirring device 13 in the neutralization tank 3, and simultaneously adjusting the pH value of the filtrate through an acidity regulator 24 and an alkalinity regulator 50;
3) Precipitation: conveying the filtrate subjected to the pH value adjustment in the step 2) into a sedimentation tank 4 through a conveying pump 25, opening a spray pipe 28 filled with a precipitator, and spraying; finally, a water inlet pipe 26 and a water outlet pipe 27 are opened to form a water circulation channel, washing sediment and draining liquid;
4) Flocculation and sedimentation: conveying the liquid discharged in the step 3) into a flocculation tank 5 through a conveying pipe III 30, and adding a flocculating agent into the flocculation tank 5 for flocculation; then, the residual waste liquid flows into the sedimentation tank 6 again through the cyclone separator 32, and aeration is carried out in the sedimentation tank 6 by the aeration pipe 33;
5) Reverse osmosis: delivering the waste liquid after the aeration in the step 4) to a centrifugal tank 35 for centrifugation, and delivering the upper layer waste liquid to a reverse osmosis tank 7; in the reverse osmosis tank 7, the filtering device 36 filters, the membrane structure reverse osmosis is carried out, so that thin liquid and thick liquid are obtained, the thin liquid is discharged, and the thick liquid is reserved;
5) Oxidizing: conveying the concentrated solution obtained in the step 5) to an oxidation pond; in the oxidation tank, high temperature is provided by a high-temperature processor, high pressure is provided by a high-pressure processor, and an oxidant is added into the oxidation tank to obtain pollutants-free H2O, CO2, N2 and the like;
6) Post-treatment: collecting ash matters generated in the steps 1) to 5), classifying, subpackaging, recovering and reprocessing.
In the preparation method, the impurities such as metal ions, suspended matters and the like in the laboratory organic waste liquid are removed by precipitation and flocculation; removing salt in the laboratory organic waste liquid by using a membrane treatment method; the supercritical oxidation treatment device is used for treating laboratory organic waste liquid, and oxygen or hydrogen peroxide is used as an oxidant under high temperature and high pressure conditions to directly convert organic matters into substances such as H2O, CO, N2 and the like.
The preparation method is characterized in that the concentrated solution after membrane treatment is completely oxidized through oxidization to obtain clean substances such as H2O, CO2, N2 and the like, S, P and the like are converted into salts with the highest valence, and a heavy metal oxidation stable solid phase exists in ash; the supercritical oxidation treatment device is utilized to treat the laboratory organic waste liquid, the treatment is thorough, almost all organic pollutants are converted into substances such as H2O, CO, N2 and the like, other substances enter ash, and then a qualification unit is entrusted to further treat, so that the environment of a treatment site is basically not influenced, and secondary pollution is not caused.
Based on the laboratory organic waste liquid treatment method, the following treatment system can be adopted:
the laboratory organic waste liquid treatment system comprises a collecting tank 1, a classifying temporary storage tank 2, a neutralizing tank 3, a sedimentation tank 4, a flocculation tank 5, a sedimentation tank 6, a reverse osmosis tank 7 and an oxidation tank which are sequentially connected, wherein the collecting tank 1 comprises a tank body 9 and a jacket 10 arranged in the tank body 9, a heating coil 11 and a condensing coil 12 are sleeved in the jacket 10, a stirring device 13 is further arranged in the tank body 9, and a defoaming device 14 is arranged at the end part of the stirring device 13; the top of the tank body 9 is connected with a collecting hopper 15, and a valve 16 is arranged between the collecting hopper 15 and the tank body 9; the bottom of the tank body 9 is provided with a liquid outlet I17, the liquid outlet I17 is connected with the sorting temporary storage tank 2 through a conveying pipe I18, and the conveying pipe I18 is provided with a return valve 19; a filter screen 20 is arranged in the classified temporary storage tank 2, a liquid outlet II 21 is arranged on the classified temporary storage tank 2, the liquid outlet II 21 is connected with the neutralization tank 3 through a conveying pipe II 22, and a ball valve 23 is arranged on the conveying pipe II 22; the neutralization tank 3 is provided with an acidity regulator 24 and an alkalinity regulator 50, a stirring device 13 is arranged in the neutralization tank 3, and the neutralization tank 3 is connected with the sedimentation tank 4 through a conveying pump 25; a spray pipe 28 is arranged above the sedimentation tank 4, a spray nozzle 29 is arranged on the spray pipe 28, and the sedimentation tank 4 is also connected with a water inlet pipe 26 and a water outlet pipe 27; the flocculation tank 5 is connected with the sedimentation tank 4 through a conveying pipe III 30, and a baffle 31 is arranged in the flocculation tank 5; the sedimentation tank 6 is connected with the flocculation tank 5 through a cyclone separator 32, an aeration pipe 33 is arranged in the sedimentation tank 6, and the aeration pipe 33 is connected with an ozone generator 34; a centrifugal tank 35 is arranged between the reverse osmosis tank 7 and the sedimentation tank 6, a filtering device 36 and a reverse osmosis device 37 are arranged in the reverse osmosis tank 7, and a thin liquid outlet 38 and a thick liquid outlet 39 are arranged on the reverse osmosis tank 7; the oxidation pond is connected with the reverse osmosis pond 7 through a concentrated solution outlet 39, a supercritical oxidation device 40 and a sampling port 42I are arranged in the oxidation pond, and the supercritical oxidation device 40 comprises a high-temperature processor and a high-pressure processor; the oxidation tank is connected with a separate tank.
The collecting tank 1 is provided with a safety valve 41 and a sampling port 42 II.
A deflector 43 is arranged in the collecting hopper 15.
The collecting hopper 15 is V-shaped.
The neutralization tank 3 is connected with a pH meter 44.
The acidity regulator 24 is connected with an acid liquid storage tank 45, and the alkalinity regulator 50 is connected with an alkali liquid storage tank 46.
The bottom of the sedimentation tank 4 is provided with an adsorption device 47.
The reverse osmosis unit 37 comprises a membrane structure.
The reverse osmosis tank 7 is connected with a sterilizer 49, and the sterilizer 49 is an ozone generator 34.
Claims (9)
1. A laboratory organic waste liquid treatment method, which is characterized by comprising the following steps:
1) Collecting and temporarily storing: collecting various laboratory organic waste liquids in a collecting tank (1) through a collecting hopper (15), regulating the temperature in the collecting tank by a heating coil (11) and a condensing coil (12) in the collecting tank, stirring by a stirring device (13), eliminating foam generated in the stirring process by a defoaming device (14), and collecting and primarily treating the laboratory organic waste liquids;
finally, the collected laboratory organic waste liquid after preliminary treatment is respectively conveyed into a classification temporary storage tank (2) through a conveying pipe I (18); in the temporary storage tank, a filter screen (20) filters to obtain filtrate;
2) Adjusting the pH value: conveying the filtrate obtained in the step 1) into a neutralization tank (3) through a conveying pipe II (22), opening a stirring device (13) in the neutralization tank (3), and adjusting the pH value of the filtrate through an acidity regulator (24) and an alkalinity regulator (50);
3) Precipitation: the filtrate after the pH value adjustment in the step 2) is conveyed into a sedimentation tank (4) through a conveying pump (25), and a spray pipe (28) filled with a precipitator is opened for spraying; finally, a water inlet pipe (26) and a water outlet pipe (27) are opened to form a water circulation channel, and the sediment is washed and discharged;
4) Flocculation and sedimentation: conveying the liquid discharged in the step 3) into a flocculation tank (5) through a conveying pipe III (30), and adding a flocculating agent into the flocculation tank (5) for flocculation; then, the residual waste liquid flows into a sedimentation tank (6) through a cyclone separator (32), and an aeration pipe (33) is used for aeration in the sedimentation tank (6);
5) Reverse osmosis: delivering the waste liquid after the aeration in the step 4) to a centrifugal tank (35), centrifuging, and delivering the upper layer waste liquid to a reverse osmosis tank (7); in the reverse osmosis tank (7), a filtering device (36) filters, the membrane structure reverse osmosis is carried out to obtain thin liquid and thick liquid, the thin liquid is discharged, and the thick liquid is reserved;
6) Oxidizing: conveying the concentrated solution obtained in the step 5) to an oxidation pond; in the oxidation tank, providing high temperature by a high-temperature processor, providing high pressure by the high-pressure processor, adding an oxidant into the oxidation tank to obtain H 2 O、CO 2 And N 2 Is free of contaminants;
7) Post-treatment: collecting ash matters generated in the steps 1) to 5), classifying, subpackaging, recovering and reprocessing;
the system related to the laboratory organic waste liquid treatment method comprises a collecting tank (1), a classifying temporary storage tank (2), a neutralizing tank (3), a sedimentation tank (4), a flocculation tank (5), a sedimentation tank (6), a reverse osmosis tank (7) and an oxidation tank which are connected in sequence,
the collecting tank (1) comprises a tank body (9) and a jacket (10) arranged in the tank body (9), a heating coil (11) and a condensing coil (12) are sleeved in the jacket (10), a stirring device (13) is further arranged in the tank body (9), and a defoaming device (14) is arranged at the end part of the stirring device (13); the top of the tank body (9) is connected with a collecting hopper (15), and a valve (16) is arranged between the collecting hopper (15) and the tank body (9); the bottom of the tank body (9) is provided with a liquid outlet I (17), the liquid outlet I (17) is connected with the classification temporary storage tank (2) through a conveying pipe I (18), and a return valve (19) is arranged on the conveying pipe I (18);
a filter screen (20) is arranged in the classifying temporary storage tank (2), a liquid outlet II (21) is arranged on the classifying temporary storage tank (2), the liquid outlet II (21) is connected with the neutralization tank (3) through a conveying pipe II (22), and a ball valve (23) is arranged on the conveying pipe II (22);
an acidity regulator (24) and an alkalinity regulator (50) are arranged on the neutralization tank (3), a stirring device (13) is arranged in the neutralization tank (3), and the neutralization tank (3) is connected with the sedimentation tank (4) through a conveying pump (25);
a spray pipe (28) is arranged above the sedimentation tank (4), a spray nozzle (29) is arranged on the spray pipe (28), and the sedimentation tank (4) is also connected with a water inlet pipe (26) and a water outlet pipe (27);
the flocculation tank (5) is connected with the sedimentation tank (4) through a conveying pipe III (30), and a baffle plate (31) is arranged in the flocculation tank (5);
the sedimentation tank (6) is connected with the flocculation tank (5) through a cyclone separator (32), an aeration pipe (33) is arranged in the sedimentation tank (6), and the aeration pipe (33) is connected with an ozone generator (34);
a centrifugal tank (35) is arranged between the reverse osmosis tank (7) and the sedimentation tank (6), a filtering device (36) and a reverse osmosis device (37) are arranged in the reverse osmosis tank (7), and a thin liquid outlet (38) and a thick liquid outlet (39) are arranged on the reverse osmosis tank (7);
the oxidation pond is connected with the reverse osmosis pond (7) through a concentrated liquid outlet (39), a supercritical oxidation device (40) and a sampling port (42) I are arranged in the oxidation pond, and the supercritical oxidation device (40) comprises a high-temperature processor and a high-pressure processor; the oxidation tank is connected with a separate tank.
2. The laboratory organic waste liquid treatment method according to claim 1, wherein: the collecting tank (1) is provided with a safety valve (41) and a sampling port (42) II.
3. The laboratory organic waste liquid treatment method according to claim 1, wherein a baffle (43) is provided in the collection hopper (15).
4. A laboratory organic waste liquid treatment method according to claim 1 or 3, characterized in that the collection hopper (15) is V-shaped.
5. The laboratory organic waste liquid treatment method according to claim 1, wherein the neutralization tank (3) is connected with a pH meter (44).
6. The laboratory organic waste liquid treatment method according to claim 1, wherein the acidity regulator (24) is connected to an acid liquid storage tank (45), and the alkalinity regulator (50) is connected to an alkali liquid storage tank (46).
7. The laboratory organic waste liquid treatment method according to claim 1, wherein the bottom of the sedimentation tank (4) is provided with an adsorption device (47).
8. The laboratory organic waste liquid treatment method according to claim 1, wherein said reverse osmosis device (37) comprises a membrane structure.
9. The laboratory organic waste liquid treatment method according to claim 1, wherein the reverse osmosis tank (7) is connected with a sterilizer (49), and the sterilizer (49) is an ozone generator (34) or an ultraviolet generator.
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| CN113636683B (en) * | 2021-08-18 | 2023-03-21 | 塔里木大学 | Inorganic chemistry experiment sewage treatment plant |
| CN113788507B (en) * | 2021-08-31 | 2023-03-07 | 深圳市金华泰实验室科技发展有限公司 | Laboratory waste liquid enrichment facility |
| CN115072929B (en) * | 2022-06-17 | 2023-12-19 | 天津开发区合普工贸有限公司 | Purification treatment device is collected to inhalation contamination experiment waste liquid |
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