CN204151164U - A kind of containing heavy metal acid-base waste fluid materialization total system - Google Patents
A kind of containing heavy metal acid-base waste fluid materialization total system Download PDFInfo
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- CN204151164U CN204151164U CN201420574097.2U CN201420574097U CN204151164U CN 204151164 U CN204151164 U CN 204151164U CN 201420574097 U CN201420574097 U CN 201420574097U CN 204151164 U CN204151164 U CN 204151164U
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- 239000002699 waste material Substances 0.000 title claims abstract description 86
- 239000012530 fluid Substances 0.000 title claims abstract description 30
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000003860 storage Methods 0.000 claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 239000010802 sludge Substances 0.000 claims abstract description 19
- 239000002912 waste gas Substances 0.000 claims abstract description 17
- 238000005406 washing Methods 0.000 claims abstract description 16
- 230000003139 buffering effect Effects 0.000 claims abstract description 15
- 238000000746 purification Methods 0.000 claims abstract description 12
- 239000002585 base Substances 0.000 claims description 27
- 230000008676 import Effects 0.000 claims description 15
- 239000003513 alkali Substances 0.000 claims description 10
- 239000010865 sewage Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 25
- 230000008569 process Effects 0.000 abstract description 23
- 239000007788 liquid Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 6
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- 238000004062 sedimentation Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
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- 238000006386 neutralization reaction Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 description 11
- 238000012545 processing Methods 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000012528 membrane Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
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- 229920002488 Hemicellulose Polymers 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 238000006479 redox reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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Abstract
The utility model discloses a kind of containing heavy metal acid-base waste fluid materialization total system, comprise spent acid dissolving tank, salkali waste dissolving tank, spent acid storage tank, salkali waste storage tank, combined reaction groove, sludge settling groove, buffering water leg, efficient filter, spent acid alkaline purification water collecting basin, waste gas cycles of washing system and plate-and-frame filter press.This system is applicable to the materialization comprehensive treating process of the multiple acid-base waste fluid containing heavy metal, comprises acid-base neutralisation, coagulating sedimentation, redox, solid-liquid separation and tail gas clean-up process etc.The utility model can reduce Facilities Construction investment while meeting the requirement of acid-base waste fluid treatment technology, under the prerequisite ensureing good treatment effect, reduces manpower and energy consumption, stops the secondary pollution to environment in acid-base waste fluid treating processes.
Description
Technical field
The utility model relates to dangerous waste liquid materializing strategy system, particularly a kind of containing heavy metal acid-base waste fluid materialization total system.
Background technology
Acid-base waste fluid source is complicated, wide variety, acid waste water is mainly from Steel Plant, chemical plant, dye processing plant, Electroplate Factory and mine etc., alkaline waste water is mainly from printing and dyeing mill, tannery, paper mill, refinery etc., except containing except soda acid in acid-base waste fluid, also often containing acid salt, subsalt and other inorganicss and organism, acid-base waste fluid has stronger corrodibility, directly entering the pH value that water body can change water body, affecting hydrobiological growth and fish production if do not administered; Enter farmland, the character of soil can be changed, make soil acidification or salinization, harm the crops.Therefore, acid-base waste fluid process not only will regulate waste liquid pH value, and its emphasis administered also has various objectionable impurities contained in waste liquid and heavy metal salt.
The general physico-chemical process that adopts processes acid-base waste fluid both at home and abroad at present, the Chinese utility model patent being CN203393285U as patent publication No. discloses the system of a kind of viscose sodium sulfate waste liquor through bipolar membrane electrodialysis method recovery soda acid, be intended to utilize the suspended substance in the equipment removal viscose sodium sulfate waste liquor such as gac, ion exchange resin, pp microporous filter, electrodialyzer and salt, the acid in Recycling of waste liquid, alkali and hemicellulose.Patent publication No. is the acidic and alkaline waste water circulating treating system of the Chinese utility model patent of CN201686593U, is intended to utilize micro electrolysis tech, coagulating sedimentation technology and microbial technique process plating acidic and alkaline waste water.The advantage that this type of single physico-chemical process treatment technology is pointed by force, treatment effect is good, but also there is the shortcoming that specific equipment is many, equipment interoperability is poor, processing cost is high simultaneously.Less for the systematic research of multiple acid-base waste fluid materializing strategy, patent publication No. is that the Chinese invention patent application of CN102344214A discloses a kind of dangerous waste liquid materialization total system, is intended to apply the dangerous waste liquids such as redox reaction, coagulating sedimentation and reverse osmosis membrane processing technical finesse spent acid class waste water, electroplating wastewater, oily(waste)water successively.This system treatment effect is better, but reverse osmosis membrane easily pollutes, cleaning and change reverse osmosis membrane and expend that workload is large, fund input is many, and the engineer applied constraining this Technology is worth.Acid-base waste fluid is different from general sanitary wastewater, waste liquid source is complicated, character is changeable, random discharge is large to environmental hazard, so be necessary that exploitation is a kind of to go for the technically reliable of multiple acid-base waste fluid, total system with low cost, realize the efficient low-consume process of acid-base waste fluid, reduce investment and the running cost of acid-base waste fluid process.
Summary of the invention
The technical problems to be solved in the utility model is to provide that a kind of construction investment is little, running cost is low, obvious processing effect, be easy to manage containing heavy metal acid-base waste fluid materialization total system, realize innoxious, the minimizing process containing heavy metal acid-base waste fluid.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of containing heavy metal acid-base waste fluid materialization total system, comprise salkali waste dissolving tank, salkali waste storage tank, spent acid dissolving tank, spent acid storage tank, combined reaction groove, sludge settling groove, plate-and-frame filter press, buffering water leg, high efficiency filter, spent acid alkaline purification water collecting basin, waste gas cycles of washing system and induced draft fan;
All having between the discharge port of salkali waste dissolving tank and the opening for feed of salkali waste storage tank, between the discharge port of spent acid dissolving tank and the opening for feed of spent acid storage tank is with the pipeline of valve to be connected;
The discharge port of salkali waste storage tank and the discharge port of spent acid storage tank respectively with the alkali lye import of combined reaction groove and acid solution import by pump be with the pipeline of valve to be connected;
All by pump be with the pipeline of valve to be connected between the discharge port of combined reaction groove and the opening for feed of sludge settling groove, between the discharge port of sludge settling groove and the opening for feed of plate-and-frame filter press;
The water outlet of plate-and-frame filter press is connected by pipeline with the opening for feed of buffering water leg;
The water outlet of buffering water leg respectively with the opening for feed of high efficiency filter and the phegma import of combined reaction groove by pump be with the pipeline of valve to be connected;
The water outlet of high efficiency filter is connected by pipeline with the opening for feed of spent acid alkaline purification water collecting basin;
The water outlet of spent acid alkali water collecting basin divides two-way water outlet, and the phegma import of a road and combined reaction groove is by pump and be with the pipeline of valve to be connected, and another road is connected with sewage works;
The air outlet of salkali waste dissolving tank, salkali waste storage tank, spent acid dissolving tank, spent acid storage tank, combined reaction groove, sludge settling groove is connected by being with the pipeline of valve with the inlet mouth of waste gas cycles of washing system respectively;
The air outlet of waste gas cycles of washing system is connected by being with the pipeline of valve with the inlet mouth of induced draft fan; The air outlet of induced draft fan communicates with air.
Described combined reaction groove, buffering water leg and spent acid alkali water collecting basin are all provided with pH instrument, redox potential instrument, thermometer and tensimeter.
The utility model has the advantage of:
This system is based on the basis to the research of general acid-base waste fluid general character, devise the general physicochemical treatment unit of acid-base waste fluid, be applicable to the materialization comprehensive treating process of multiple acid-base waste fluid, comprise acid-base neutralisation, redox, coagulating sedimentation, solid-liquid separation and tail gas clean-up process etc.When meeting liquid waste disposal and requiring; the re-treatment Facilities Construction of multiple acid-base waste fluid process can be reduced, reduce equipment construction investment; system run all right; processing speed is fast; treatment effect is good; save the human and material resources consumption that acid-base waste fluid process is disposed, there is acid-base waste fluid process centralization, specialization, large-scale promotion application prospect.
Accompanying drawing explanation
Fig. 1 is of the present utility model containing heavy metal acid-base waste fluid materialization total system structural representation.
In figure: 1-salkali waste dissolving tank, 2-salkali waste storage tank, 3-spent acid dissolving tank, 4-spent acid storage tank, 5-combined reaction groove, 6-sludge settling groove, 7-plate-and-frame filter press, 8-cushion water leg, 9-high efficiency filter, 10-spent acid alkaline purification water collecting basin, 11-waste gas cycles of washing system, 12-induced draft fan.
Embodiment
Below in conjunction with Fig. 1, the utility model is further described:
With reference to Fig. 1, heavy metal acid-base waste fluid materialization total system, comprises salkali waste dissolving tank 1, salkali waste storage tank 2, spent acid dissolving tank 3, spent acid storage tank 4, combined reaction groove 5, sludge settling groove 6, plate-and-frame filter press 7, buffering water leg 8, high efficiency filter 9, spent acid alkaline purification water collecting basin 10, waste gas cycles of washing system 11 and induced draft fan 12.
Salkali waste dissolving tank 1, salkali waste storage tank 2, spent acid dissolving tank 3, spent acid storage tank 4, sludge settling groove 6 all has opening for feed, discharge port and air outlet, combined reaction groove 5 has acid solution import, alkali lye import, phegma import, discharge port, air outlet and multiple dosing mouth, combined reaction groove 5, pH instrument is equipped with in buffering water leg 8 and spent acid alkaline purification water collecting basin 10, redox potential instrument (ORP instrument), thermometer and tensimeter, plate-and-frame filter press 7, high efficiency filter 9, spent acid alkaline purification water collecting basin 10 all has opening for feed and water outlet, waste gas cycles of washing system 11 and induced draft fan 12 all have inlet mouth and air outlet.All having between salkali waste dissolving tank 1 discharge port with salkali waste storage tank 2 opening for feed, between spent acid dissolving tank 3 discharge port with spent acid storage tank 4 opening for feed is with the pipeline of valve to be connected; The discharge port of salkali waste storage tank 2 and spent acid storage tank 4 respectively with the alkali lye import of combined reaction groove 5 and acid solution import by pump with establish valvular pipeline to be connected; Combined reaction groove 5 discharge port and sludge settling groove 6 opening for feed are by pump and establish valvular pipeline to be connected; Sludge settling groove 6 discharge port is connected by establishing valvular pipeline with plate-and-frame filter press 7 opening for feed; Plate-and-frame filter press 7 water outlet is connected with buffering water leg 8 opening for feed pipeline; Buffering water leg 8 water outlet divides two-way water outlet, and a road is connected by establishing valvular pipeline with high efficiency filter 9 opening for feed, and another road is connected by establishing valvular pipeline with the import of combined reaction groove 5 phegma; High efficiency filter 9 water outlet is connected with spent acid alkaline purification water collecting basin 10 opening for feed pipeline; Spent acid alkali water collecting basin 10 water outlet divides two-way water outlet, and a road and the import of combined reaction groove 5 phegma are by pump and establish valvular pipeline to be connected, and another road is connected with sewage works; The air outlet of salkali waste dissolving tank 1, salkali waste storage tank 2, spent acid dissolving tank 3, spent acid storage tank 4, combined reaction groove 5, sludge settling groove 6 is connected by establishing valvular pipeline with the inlet mouth of waste gas cycles of washing system 11 respectively; The air outlet of waste gas cycles of washing system 11 is connected by establishing valvular pipeline with the inlet mouth of induced draft fan 12; The air outlet of induced draft fan 12 communicates with external environment air.
During system cloud gray model, alkaline waste liquor first pumps into salkali waste dissolving tank 1 and stirs, and wherein contained a small amount of solid matter is dissolved, and flows into salkali waste storage tank 2 etc. subsequently pending under the control of pipeline valve; In like manner, acid waste liquid first pumps into that spent acid dissolving tank 3 stirs, dissolves solid matter, to flow into spent acid storage tank 4 pending.When needs process, alkaline waste liquor and acid waste liquid can be pumped in combined reaction groove 5 simultaneously carry out neutralization reaction; If only have in a groove in salkali waste storage tank 2 and spent acid storage tank 4 and have waste liquid, waste liquid directly can be pumped in combined reaction groove 5 and wait for and add medicament.According to the different in kind of waste liquid in combined reaction groove 5, in groove, add different medicaments stir, react, waste liquid carries out the processes such as acid-base neutralisation, redox, coagulating sedimentation in combined reaction groove 5, monitors by instrument, the heavy metal contaminants regulating waste liquid pH value and remove in waste liquid.After reacting completely in combined reaction groove 5, material is pumped into sludge settling groove 6 to staticly settle, again material is pumped into plate-and-frame filter press 7 from sludge settling groove 6 after having precipitated and carry out solid-liquid separation, remove macrobead solid impurity, isolated liquid flows in buffering water leg 8, and filter residue then transports solidification workshop to and is cured process.After in water leg 8 to be buffered, waste water reaches designated water level, through observing, monitoring, if waste water not yet meets processing requirements in buffering water leg 8, blowback combined reaction groove 5 carries out reprocessing, if meet processing requirements, pump into high efficiency filter 9 and again filter, remove the suspended solid that particle is less, filter water outlet and enter in spent acid alkaline purification water collecting basin 10.If waste water not yet meets processing requirements in spent acid alkaline purification water collecting basin 10 pond, blowback combined reaction groove 5 carries out reprocessing, if meet processing requirements, and can direct reuse or discharge.Salkali waste dissolving tank 1, salkali waste storage tank 2, spent acid dissolving tank 3, spent acid storage tank 4, combined reaction groove 5, the air outlet of sludge settling groove 6 is connected by establishing valvular pipeline with the inlet mouth of waste gas cycles of washing system 11, the air outlet of waste gas cycles of washing system 11 is connected by establishing valvular pipeline with the inlet mouth of induced draft fan 12, induced draft fan 12 runs and produces negative pressure, salkali waste dissolving tank 1, salkali waste storage tank 2, spent acid dissolving tank 3, spent acid storage tank 4, combined reaction groove 5, the gas that sludge settling groove 6 produces in waste treatment process is due to the driving of negative pressure, unified flowing in waste gas cycles of washing system 11 processes, process qualified rear by induced draft fan 12 atmospheric environment discharge towards periphery.
Embodiment:
Solid waste disposal center, Guangxi use the multiple source of the utility model process complicated containing heavy metal acid waste liquid, after testing, treatment system inlet effluent pH value is 1.74 ~ 2.01, lead concentration is 0.13 ~ 3.23mg/L, cadmium concentration is 0.019 ~ 1.984mg/L, chromium concn is 0.02 ~ 12.15mg/L, nickel concentration is 0.19 ~ 7.41mg/L, arsenic concentration is 1.2 ~ 1.8mg/L, mercury concentration is 0.033 μ g/L ~ 0.504 μ g/L, hexavalent chromium concentration is 0.004 ~ 0.0431mg/L.The pH value of system outlet draining is after treatment 7.44 ~ 7.96, lead concentration is lower than 0.05mg/L, cadmium concentration is lower than 0.003mg/L, chromium concn is lower than 0.01mg/L, nickel concentration is lower than 0.01mg/L, arsenic concentration is lower than 0.1mg/L, mercury concentration is 0.025 μ g/L ~ 0.007 μ g/L, hexavalent chromium concentration is lower than 0.04mg/L, plumbous, cadmium, chromium, nickel, arsenic, chromic clearance is all greater than 99.9%, mercury clearance is greater than 65.9%, above monitoring index all meets the requirement of " integrated wastewater discharge standard " (GB 8978-1996) first kind pollutent the highest permission emission concentration limit value.The waste gas produced in treating processes is after the process of waste gas cycles of washing system, and final tail gas of discharging reaches secondary emission limit requirement in " discharge standard of air pollutants " (GB 16297-1996) table 2.Show through long-play, system run all right, with low cost, treatment effect is good.
Claims (2)
1. one kind contains heavy metal acid-base waste fluid materialization total system, it is characterized in that, comprise salkali waste dissolving tank (1), salkali waste storage tank (2), spent acid dissolving tank (3), spent acid storage tank (4), combined reaction groove (5), sludge settling groove (6), plate-and-frame filter press (7), buffering water leg (8), high efficiency filter (9), spent acid alkaline purification water collecting basin (10), waste gas cycles of washing system (11) and induced draft fan (12);
All having between the discharge port of salkali waste dissolving tank (1) and the opening for feed of salkali waste storage tank (2), between the discharge port of spent acid dissolving tank (3) and the opening for feed of spent acid storage tank (4) is with the pipeline of valve to be connected;
The discharge port of salkali waste storage tank (2) and the discharge port of spent acid storage tank (4) respectively with the alkali lye import of combined reaction groove (5) and acid solution import by pump be with the pipeline of valve to be connected;
All by pump be with the pipeline of valve to be connected between the discharge port of combined reaction groove (5) and the opening for feed of sludge settling groove (6), between the discharge port of sludge settling groove (6) and the opening for feed of plate-and-frame filter press (7);
The water outlet of plate-and-frame filter press (7) is connected by pipeline with the opening for feed of buffering water leg (8);
The water outlet of buffering water leg (8) respectively with the opening for feed of high efficiency filter (9) and the phegma import of combined reaction groove (5) by pump be with the pipeline of valve to be connected;
The water outlet of high efficiency filter (9) is connected by pipeline with the opening for feed of spent acid alkaline purification water collecting basin (10);
The water outlet of spent acid alkali water collecting basin (10) divides two-way water outlet, and the phegma import of a road and combined reaction groove (5) is by pump and be with the pipeline of valve to be connected, and another road is connected with sewage works;
The air outlet of salkali waste dissolving tank (1), salkali waste storage tank (2), spent acid dissolving tank (3), spent acid storage tank (4), combined reaction groove (5), sludge settling groove (6) is connected by being with the pipeline of valve with the inlet mouth of waste gas cycles of washing system (11) respectively;
The air outlet of waste gas cycles of washing system (11) is connected by being with the pipeline of valve with the inlet mouth of induced draft fan (12); The air outlet of induced draft fan (12) communicates with air.
2. one according to claim 1 is containing heavy metal acid-base waste fluid materialization total system, it is characterized in that, described combined reaction groove (5), buffering water leg (8) and spent acid alkali water collecting basin (10) are all provided with pH instrument, redox potential instrument, thermometer and tensimeter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420574097.2U CN204151164U (en) | 2014-09-29 | 2014-09-29 | A kind of containing heavy metal acid-base waste fluid materialization total system |
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| CN201420574097.2U CN204151164U (en) | 2014-09-29 | 2014-09-29 | A kind of containing heavy metal acid-base waste fluid materialization total system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621778A (en) * | 2016-03-21 | 2016-06-01 | 赵茉焱 | Alkali slag waste liquid processing system |
| CN106348490A (en) * | 2016-09-09 | 2017-01-25 | 扬州大学 | Laboratory heavy metal waste liquid treatment integrated machine |
-
2014
- 2014-09-29 CN CN201420574097.2U patent/CN204151164U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621778A (en) * | 2016-03-21 | 2016-06-01 | 赵茉焱 | Alkali slag waste liquid processing system |
| CN106348490A (en) * | 2016-09-09 | 2017-01-25 | 扬州大学 | Laboratory heavy metal waste liquid treatment integrated machine |
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Granted publication date: 20150211 |