CN205170574U - Processing apparatus who comes from waste water of meticulous chemical production device of fluorine - Google Patents
Processing apparatus who comes from waste water of meticulous chemical production device of fluorine Download PDFInfo
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- CN205170574U CN205170574U CN201521003433.9U CN201521003433U CN205170574U CN 205170574 U CN205170574 U CN 205170574U CN 201521003433 U CN201521003433 U CN 201521003433U CN 205170574 U CN205170574 U CN 205170574U
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Abstract
(B, ) the utility model relates to a processing apparatus who comes from waste water of meticulous chemical production device of fluorine, processing apparatus including be used for right the waste water that comes from the meticulous chemical production device of fluorine carry on fenton oxidation the preliminary treatment reactor, with the preliminary treatment reactor be linked together the defluorination reactor that is arranged in detaching the fluorine ion of waste water, with the defluorination reactor be linked together be used for right waste water flocculate settlement treatment the depositing reservoir, with the depositing reservoir be linked together be used for right waste water electrolytic oxidation's electrolysis trough carries out. The utility model discloses a processing apparatus is rationally distributed for acetonitrile content is lighter than (b) (b) 2mgL (b) (b) in handling back waste water, reaches the requirement of " the design hygienic standard of (b) (b) TJ36 -79 (b) (b) industrial enterprise ", and < (b) (b) 5mgL (b) (b) has realized the discharge to reach standard of waste water having reduced the pollution to water in the environment maximum permissible concentra tion of acetonitrile in the surface water. (B, )
Description
Technical field
the utility model relates to a kind for the treatment of unit of the waste water from fluorine fine chemistry industry production equipment.
Background technology
in the production of fluorine fine chemicals, general chloride raw material and the hydrogen fluoride of adopting reacts, and exchanges by fluorine chlorine.Part medicine intermediate class fluorine fine product can use acetonitrile as solvent.
such as Ultane as inhaling type narcotic ideal after fluothane, ohio-347 and isofluranum, it technique take acetonitrile as solvent, technological process produce in a large number fluorine-containing, containing the waste water of acetonitrile.
be and for example that the synthesis technique of raw material route prepares HFO-1336 with HCFC-123, obtain product.Using acetonitrile as solvent, for realizing solid-liquid separation, needing just acetonitrile to make to wash with water out, so a large amount of waste water containing acetonitrile can be produced.
at present, after usually adopting electrolytic oxidation process containing the waste water of acetonitrile, then carry out flocculation treatment, thus remove the acetonitrile in waste water.But, adopt the clearance of the method acetonitrile not high, and energy consumption is larger.
Utility model content
the technical problems to be solved in the utility model is to provide a kind for the treatment of unit that ethane nitrile content in processed waste water can be made to be less than the waste water from fluorine fine chemistry industry production equipment of 2mg/L.
in order to solve the problems of the technologies described above, a kind of technical scheme that the utility model adopts is:
from a treatment unit for the waste water of fluorine fine chemistry industry production equipment, described treatment unit comprises preatreating reactors for carrying out Fenton oxidation to the described waste water from fluorine fine chemistry industry production equipment, be connected with described preatreating reactors for remove fluorion in waste water except fluorine reactor, be connected for settling pond waste water being carried out to flocculating settling process, the electrolyzer that is connected for carrying out electrolytic oxidation to waste water with described settling pond with the described fluorine reactor that removes.
particularly, described treatment unit also comprises and being connected for storing the described waste water reclamation tower from fluorine fine chemistry industry production equipment with described preatreating reactors.
particularly, described treatment unit also comprise to be connected with described preatreating reactors for store the compound that ferrous ion can be provided the first storage tank, for store hydrogen peroxide the second storage tank, for storing the 3rd storage tank of pH adjusting agent.
particularly, described treatment unit also comprises and described the 4th storage tank be connected for storing defluorinating agent except fluorine reactor.
particularly, flocculation agent is added with in described settling pond.
particularly, described treatment unit also comprises the pressure filter be connected for carrying out press filtration to the throw out in described settling pond with described settling pond, and the liquid outlet of described pressure filter is connected with described electrolyzer.
particularly, described treatment unit also comprises the circulation device for being carried out circulating by the liquid in described electrolyzer, described circulation device comprise be connected with described electrolyzer surge tank, be connected for the recycle pump by liquid circulation with described electrolyzer with described surge tank.
more specifically, described treatment unit also comprises the 5th storage tank be connected with the discharge port of described electrolyzer, and the 5th described storage tank is connected for the feed liquid in described electrolyzer is carried out flocculating settling in described settling pond with described settling pond.
more specifically, described surge tank is connected with described electrolyzer by the 5th described storage tank.
more specifically, described treatment unit also comprises the device for absorbing tail gas be connected with the air outlet of described preatreating reactors, the described air outlet except fluorine reactor, the air outlet of described settling pond, the 5th storage tank respectively, and device for absorbing tail gas comprises blower fan, tail gas absorber and off-gas pump.
scope of the present utility model, is not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, also should contain other technical scheme of being carried out arbitrary combination by above-mentioned technical characteristic or its equivalent feature and being formed simultaneously.The technical characteristic that such as, disclosed in above-mentioned feature and the application (but being not limited to) has similar functions is replaced mutually and the technical scheme etc. formed.
because technique scheme is used, the utility model compared with prior art has following advantages: treatment unit of the present utility model is rationally distributed, make to process while in the waste water of fluorine fine chemistry industry production equipment, ethane nitrile content is less than 2mg/L afterwards, guarantee energy consumption is minimum, reach the requirement of " TJ36-79 Design of Industrial Enterprises hygienic standard ", the maximum permissible concentration < 5mg/L of acetonitrile in the surface water, achieve the qualified discharge of waste water, decrease the pollution to water body in environment.
Accompanying drawing explanation
accompanying drawing 1 is schematic diagram of the present utility model;
wherein: 1, waste water reclamation tower; 2, preatreating reactors; 3, except fluorine reactor; 4, settling pond; 5, electrolyzer; 6, the first storage tank; 7, the second storage tank; 8, the 3rd storage tank; 9, the 4th storage tank; 10, pressure filter; 11, surge tank; 12, recycle pump; 13, the 5th storage tank; 14, blower fan; 15, tail gas absorber; 16, off-gas pump.
Embodiment
as shown in Figure 1, a kind for the treatment of unit of the waste water from fluorine fine chemistry industry production equipment, comprise the waste water reclamation tower 1 for storing from fluorine fine chemistry industry production equipment, the preatreating reactors 2 be connected with waste water reclamation tower 1 for carrying out Fenton oxidation to the waste water from fluorine fine chemistry industry production equipment, be connected with preatreating reactors 2 for remove fluorion in waste water except fluorine reactor 3, with the settling pond 4 be connected for carrying out flocculating settling process to waste water except fluorine reactor 3, the electrolyzer 5 be connected with settling pond 4 for carrying out electrolytic oxidation to waste water.
treatment unit also comprise to be connected with preatreating reactors 2 for store the compound that ferrous ion can be provided the first storage tank 6, for store hydrogen peroxide the second storage tank 7, for storing the 3rd storage tank 8 of pH adjusting agent.The compound of ferrous ion can be provided to be ferrous sulfate or iron protochloride, or the ferrous ion generated after acid in iron powder and waste water or the acid-respons that additionally adds.Be carry out Fenton oxidation process with removing from the most of acetonitrile in the waste water of fluorine fine chemistry industry production equipment under the condition of 2 ~ 10 under the existence of ferrous ion, at pH from the waste water of fluorine fine chemistry industry production equipment.
treatment unit also comprises and the 4th storage tank 9 be connected for storing defluorinating agent except fluorine reactor 3, defluorinating agent is be selected from one or more in calcium hydroxide, calcium oxide, calcium chloride, calcium sulfate, nitrocalcite, polymer alumina, when defluorinating agent has multiple, the 4th storage tank 9 has multiple for storing various defluorinating agent separately.
be added with flocculation agent in settling pond 4, flocculation agent is cationic flocculant, purchased from the molecular weight 8,000,000 of company of Dongying City Nore Chemical Co., Ltd., and the product that ion degree is medium-sized.Electrolyzer 5 adopts the enclosed type electrolytic tank 5 for the production of oxymuriate, and it can reduce the volatilization of gas in electrolytic process.
treatment unit also comprises the pressure filter 10 be connected for carrying out press filtration to the throw out in settling pond 4 with settling pond 4, the liquid outlet of pressure filter 10 is connected with electrolyzer 5, the supernatant liquor in settling pond 4 is entered in electrolyzer 5 together with the filtrate in pressure filter 10 and carries out electrolysis.
treatment unit also comprises the circulation device for being carried out circulating by the liquid in electrolyzer 5, circulation device comprise be connected with electrolyzer 5 surge tank 11, be connected for the recycle pump 12 by liquid circulation with electrolyzer 5 with surge tank 11.Treatment unit also comprises the 5th storage tank the 13, five storage tank 13 be connected with the discharge port of electrolyzer 5 and is connected for the feed liquid in electrolyzer 5 is carried out flocculating settling in settling pond 4 with settling pond 4, thus adds the treating depth of waste water.Surge tank 11 is connected with electrolyzer 5 by the 5th storage tank 13.Waste water after process can be discharged from settling pond 4, also can discharge from the 5th storage tank 13.
treatment unit also comprises the device for absorbing tail gas be connected with the air outlet of preatreating reactors 2, the air outlet except fluorine reactor 3, the air outlet of settling pond 4, the 5th storage tank 13 respectively, and device for absorbing tail gas comprises blower fan 14, tail gas absorber 15 and off-gas pump 16.
embodiment 1
above-mentioned treatment unit is adopted to carry out the process of ethane nitrile wastewater from the waste water of fluorine fine chemistry industry production equipment, in the present embodiment, the fluorion 2000mg/L composed as follows of waste water, ethane nitrile content 25000mg/L, inorganic salt mass content 23.0%, all the other organic content are 500mg/L, and this storage of waste water is in ethane nitrile wastewater waste water reclamation tower 1.
treatment process comprises the following steps of carrying out successively:
step (1), ethane nitrile wastewater is passed in preatreating reactors 2 from the waste water of fluorine fine chemistry industry production equipment, open the first storage tank 6 storing iron protochloride, store the second storage tank 7 of hydrogen peroxide and store the 3rd storage tank 8 of 10% sodium hydroxide solution, and make the quality that feeds intake of ferrous ion and hydrogen peroxide be ethane nitrile wastewater from 1 times of acetonitrile quality in the waste water of fluorine fine chemistry industry production equipment, the molar ratio of ferrous ion and hydrogen peroxide is 3:1, the pH controlling reaction system is 8, then Fenton oxidation process is carried out, in waste water after control treatment, ethane nitrile content is 2000mg/L.
step (2), by through step (1) process after ethane nitrile wastewater waste water pass into except in fluorine reactor 3, open three the 4th storage tanks 9 storing sodium hydroxide, calcium oxide, calcium chloride respectively, and control sodium hydroxide, calcium oxide, calcium chloride amount of substance than for 2:1:1, the total mass that feeds intake of sodium hydroxide, calcium oxide, calcium chloride is ethane nitrile wastewater from 0.8 times of the fluorinion in waste water quality of fluorine fine chemistry industry production equipment, then react the fluorion removed in waste water, after control treatment, the content of fluoride ion of waste water is less than 10mg/L.
step (3), by through step (2) process after ethane nitrile wastewater waste water pass in settling pond 4, under the existence of cationic flocculant, carry out flocculating settling process 12h, treat that the turbidity of supernatant liquor in settling pond 4 is less than 10FTU, then throw out is proceeded in pressure filter 10 and carry out press filtration, adopt 10% sodium hydroxide solution in the 3rd storage tank 8 that the pH value of the supernatant liquor in the filtrate in pressure filter 10 and settling pond 4 is adjusted to 11.5.
step (4), the filtrate that obtains after step (3) process passed in electrolyzer 5 and carries out electrolytic oxidation process to remove the acetonitrile in waste water further, ethane nitrile content in waste water after control treatment is less than 2mg/L, and the feed liquid in electrolyzer 5 passes into settling pond 4 and carries out flocculating settling to remove the slag charge of electrolysis generation.
after above-mentioned process, the fluorion 8.67mg/L in waste water, ethane nitrile content 1.92mg/L, inorganic salt mass content 21.0%, all the other organic content are 5.03mg/L.The energy consumption that above-mentioned process consumes is 200KWh, and cost is 210 yuan/ton.
embodiment 2
above-mentioned treatment unit is adopted to carry out the process of ethane nitrile wastewater from the waste water of fluorine fine chemistry industry production equipment, in the present embodiment, waste water composed as follows: fluorion 1950mg/L, ethane nitrile content 29000mg/L, inorganic salt mass content 22.5%, all the other organic content are 510mg/L, and this storage of waste water is in ethane nitrile wastewater waste water reclamation tower 1.
treatment process comprises the following steps of carrying out successively:
step (1), ethane nitrile wastewater is passed in preatreating reactors 2 from the waste water of fluorine fine chemistry industry production equipment, open the first storage tank 6 storing ferrous sulfate, store the second storage tank 7 of hydrogen peroxide and store the 3rd storage tank 8 of 10% sodium hydroxide solution, and make the quality that feeds intake of ferrous ion and hydrogen peroxide be ethane nitrile wastewater from 1 times of acetonitrile quality in the waste water of fluorine fine chemistry industry production equipment, the molar ratio of ferrous ion and hydrogen peroxide is 4:1, the pH controlling reaction system is 9, then Fenton oxidation process is carried out, in waste water after control treatment, ethane nitrile content is 5000mg/L.
step (2), by through step (1) process after ethane nitrile wastewater waste water pass into except in fluorine reactor 3, open three the 4th storage tanks 9 storing sodium hydroxide, calcium oxide, calcium chloride respectively, and control sodium hydroxide, calcium oxide, calcium chloride amount of substance than for 2:1:1, the total mass that feeds intake of sodium hydroxide, calcium oxide, calcium chloride is ethane nitrile wastewater from 0.95 times of the fluorinion in waste water quality of fluorine fine chemistry industry production equipment, then react the fluorion removed in waste water, after control treatment, the content of fluoride ion of waste water is less than 10mg/L.
step (3), by through step (2) process after ethane nitrile wastewater waste water pass in settling pond 4, under the existence of cationic flocculant, carry out flocculating settling process 12h, treat that the turbidity of supernatant liquor in settling pond 4 is less than 10FTU, then throw out is proceeded in pressure filter 10 and carry out press filtration, adopt 10% sodium hydroxide solution in the 3rd storage tank 8 that the pH value of the supernatant liquor in the filtrate in pressure filter 10 and settling pond 4 is adjusted to 11.7.
step (4), the filtrate that obtains after step (3) process passed in electrolyzer 5 and carries out electrolytic oxidation process to remove the acetonitrile in waste water further, ethane nitrile content in waste water after control treatment is less than 2mg/L, and the feed liquid in electrolyzer 5 passes into settling pond 4 and carries out flocculating settling to remove the slag charge of electrolysis generation.
after above-mentioned process, the fluorion 7.67mg/L in waste water, ethane nitrile content 1.58mg/L, inorganic salt mass content 20.8%, all the other organic content are 7.01mg/L.The energy consumption that above-mentioned process consumes is 234KWh, and cost is 232 yuan/ton.
embodiment 3
above-mentioned treatment unit is adopted to carry out the process of ethane nitrile wastewater from the waste water of fluorine fine chemistry industry production equipment, in the present embodiment, the fluorion 2070mg/L composed as follows of waste water, ethane nitrile content 39000mg/L, inorganic salt mass content 22.9%, all the other organic content are 685mg/L, and this storage of waste water is in ethane nitrile wastewater waste water reclamation tower 1.
treatment process comprises the following steps of carrying out successively:
step (1), ethane nitrile wastewater is passed in preatreating reactors 2 from the waste water of fluorine fine chemistry industry production equipment, open the first storage tank 6 storing ferrous sulfate, store the second storage tank 7 of hydrogen peroxide and store the 3rd storage tank 8 of 10% sodium hydroxide solution, and make the quality that feeds intake of ferrous ion and hydrogen peroxide be ethane nitrile wastewater from 2 times of acetonitrile quality in the waste water of fluorine fine chemistry industry production equipment, the molar ratio of ferrous ion and hydrogen peroxide is 3.5:1, the pH controlling reaction system is 8.5, then Fenton oxidation process is carried out, in waste water after control treatment, ethane nitrile content is 3000mg/L.
step (2), by through step (1) process after ethane nitrile wastewater waste water pass into except in fluorine reactor 3, open three the 4th storage tanks 9 storing sodium hydroxide, calcium oxide, calcium chloride respectively, and control sodium hydroxide, calcium oxide, calcium chloride amount of substance than for 2:1:1, the total mass that feeds intake of sodium hydroxide, calcium oxide, calcium chloride is ethane nitrile wastewater from 1.0 times of the fluorinion in waste water quality of fluorine fine chemistry industry production equipment, then react the fluorion removed in waste water, after control treatment, the content of fluoride ion of waste water is less than 10mg/L.
step (3), by through step (2) process after ethane nitrile wastewater waste water pass in settling pond 4, under the existence of cationic flocculant, carry out flocculating settling process 12h, treat that the turbidity of supernatant liquor in settling pond 4 is less than 10FTU, then throw out is proceeded in pressure filter 10 and carry out press filtration, adopt 10% sodium hydroxide solution in the 3rd storage tank 8 that the pH value of the supernatant liquor in the filtrate in pressure filter 10 and settling pond 4 is adjusted to 11.7.
step (4), the filtrate that obtains after step (3) process passed in electrolyzer 5 and carries out electrolytic oxidation process to remove the acetonitrile in waste water further, ethane nitrile content in waste water after control treatment is less than 2mg/L, and the feed liquid in electrolyzer 5 passes into settling pond 4 and carries out flocculating settling to remove the slag charge of electrolysis generation.
after above-mentioned process, the fluorion 8.95mg/L in waste water, ethane nitrile content 1.74mg/L, inorganic salt mass content 20.7%, all the other organic content are 8.46mg/L.The energy consumption that above-mentioned process consumes is 217KWh, and cost is 219 yuan/ton.
comparative example 1
above-mentioned treatment unit is adopted to carry out the process of ethane nitrile wastewater from the waste water of fluorine fine chemistry industry production equipment, in the present embodiment, the fluorion 2070mg/L composed as follows of waste water, ethane nitrile content 39000mg/L, inorganic salt mass content 22.9%, all the other organic content are 685mg/L, and this storage of waste water is in ethane nitrile wastewater waste water reclamation tower 1.
treatment process comprises the following steps of carrying out successively:
step (1), ethane nitrile wastewater is passed in preatreating reactors 2 from the waste water of fluorine fine chemistry industry production equipment, open the first storage tank 6 storing ferrous sulfate, store the second storage tank 7 of hydrogen peroxide and store the 3rd storage tank 8 of 10% sodium hydroxide solution, and make the quality that feeds intake of ferrous ion and hydrogen peroxide be ethane nitrile wastewater from 1 times of acetonitrile quality in the waste water of fluorine fine chemistry industry production equipment, the molar ratio of ferrous ion and hydrogen peroxide is 2:1, the pH controlling reaction system is 6, then Fenton oxidation process is carried out, in waste water after control treatment, ethane nitrile content is 6000mg/L.
step (2), by through step (1) process after ethane nitrile wastewater waste water pass into except in fluorine reactor 3, open three the 4th storage tanks 9 storing sodium hydroxide, calcium oxide, calcium chloride respectively, and control sodium hydroxide, calcium oxide, calcium chloride amount of substance than for 3:2:1, the total mass that feeds intake of sodium hydroxide, calcium oxide, calcium chloride is ethane nitrile wastewater from 1.05 times of the fluorinion in waste water quality of fluorine fine chemistry industry production equipment, then react the fluorion removed in waste water, after control treatment, the content of fluoride ion of waste water is less than 10mg/L.
step (3), by through step (2) process after ethane nitrile wastewater waste water pass in settling pond 4, under the existence of cationic flocculant, carry out flocculating settling process 12h, treat that the turbidity of supernatant liquor in settling pond 4 is less than 10FTU, then throw out is proceeded in pressure filter 10 and carry out press filtration, adopt 10% sodium hydroxide solution in the 3rd storage tank 8 that the pH value of the supernatant liquor in the filtrate in pressure filter 10 and settling pond 4 is adjusted to 10.
step (4), the filtrate that obtains after step (3) process to be passed in electrolyzer 5 and carry out electrolytic oxidation process to remove the acetonitrile in waste water further, the feed liquid in electrolyzer 5 passes into settling pond 4 and carries out flocculating settling remove the slag charge of electrolysis generation.
after above-mentioned process, the fluorion 9.82mg/L in waste water, ethane nitrile content 10.42mg/L, inorganic salt mass content 21.5%, all the other organic content are 15.3mg/L.The energy consumption that above-mentioned process consumes is 468KWh, and cost is 432 yuan/ton.
comparative example 2
above-mentioned treatment unit is adopted to carry out the process of ethane nitrile wastewater from the waste water of fluorine fine chemistry industry production equipment, in the present embodiment, the fluorion 2070mg/L composed as follows of waste water, ethane nitrile content 39000mg/L, inorganic salt mass content 22.9%, all the other organic content are 685mg/L, and this storage of waste water is in ethane nitrile wastewater waste water reclamation tower 1.
treatment process comprises the following steps of carrying out successively:
step (1), ethane nitrile wastewater is passed in preatreating reactors 2 from the waste water of fluorine fine chemistry industry production equipment, open the first storage tank 6 storing ferrous sulfate, store the second storage tank 7 of hydrogen peroxide and store the 3rd storage tank 8 of 10% sodium hydroxide solution, and make the quality that feeds intake of ferrous ion and hydrogen peroxide be ethane nitrile wastewater from 1 times of acetonitrile quality in the waste water of fluorine fine chemistry industry production equipment, the molar ratio of ferrous ion and hydrogen peroxide is 4:1, the pH controlling reaction system is 8.5, then Fenton oxidation process is carried out, in waste water after control treatment, ethane nitrile content is 1000mg/L.
step (2), by through step (1) process after ethane nitrile wastewater waste water pass into except in fluorine reactor 3, open three the 4th storage tanks 9 storing sodium hydroxide, calcium oxide, calcium chloride respectively, and control sodium hydroxide, calcium oxide, calcium chloride amount of substance than for 2:1:1, the total mass that feeds intake of sodium hydroxide, calcium oxide, calcium chloride is ethane nitrile wastewater from 0.98 times of the fluorinion in waste water quality of fluorine fine chemistry industry production equipment, then react the fluorion removed in waste water, after control treatment, the content of fluoride ion of waste water is less than 10mg/L.
step (3), by through step (2) process after ethane nitrile wastewater waste water pass in settling pond 4, under the existence of cationic flocculant, carry out flocculating settling process 12h, treat that the turbidity of supernatant liquor in settling pond 4 is less than 10FTU, then throw out is proceeded in pressure filter 10 and carry out press filtration, adopt 10% sodium hydroxide solution in the 3rd storage tank 8 that the pH value of the supernatant liquor in the filtrate in pressure filter 10 and settling pond 4 is adjusted to 12.
step (4), the filtrate that obtains after step (3) process to be passed in electrolyzer 5 and carry out electrolytic oxidation process to remove the acetonitrile in waste water further, the feed liquid in electrolyzer 5 passes into settling pond 4 and carries out flocculating settling remove the slag charge of electrolysis generation.
after above-mentioned process, the fluorion 9.53mg/L in waste water, ethane nitrile content 9.53mg/L, inorganic salt mass content 20.7%, all the other organic content are 8.67mg/L.The energy consumption that above-mentioned process consumes is 356KWh, and cost is 329 yuan/ton.
as mentioned above, we are illustrated according to aim of the present utility model completely, but the utility model is not limited to above-described embodiment and implementation method.Different changes and enforcement is carried out in the scope that the practitioner of correlative technology field can permit at technological thought of the present utility model.
Claims (10)
1. the treatment unit from the waste water of fluorine fine chemistry industry production equipment, it is characterized in that: described treatment unit comprises the preatreating reactors (2) for carrying out Fenton oxidation to the described waste water from fluorine fine chemistry industry production equipment, be connected with described preatreating reactors (2) for remove fluorion in waste water except fluorine reactor (3), with the described settling pond (4) be connected for carrying out flocculating settling process to waste water except fluorine reactor (3), the electrolyzer (5) be connected with described settling pond (4) for carrying out electrolytic oxidation to waste water.
2. the treatment unit of the waste water from fluorine fine chemistry industry production equipment according to claim 1, is characterized in that: described treatment unit also comprises the waste water reclamation tower (1) be connected for storing the described waste water from fluorine fine chemistry industry production equipment with described preatreating reactors (2).
3. the treatment unit of the waste water from fluorine fine chemistry industry production equipment according to claim 1, is characterized in that: described treatment unit also comprise to be connected with described preatreating reactors (2) for store the compound that ferrous ion can be provided the first storage tank (6), for store hydrogen peroxide the second storage tank (7), for storing the 3rd storage tank (8) of pH adjusting agent.
4. the treatment unit of the waste water from fluorine fine chemistry industry production equipment according to claim 1, is characterized in that: described treatment unit also comprises and described the 4th storage tank (9) be connected for storing defluorinating agent except fluorine reactor (3).
5. the treatment unit of the waste water from fluorine fine chemistry industry production equipment according to claim 1, is characterized in that: be added with flocculation agent in described settling pond (4).
6. the treatment unit of the waste water from fluorine fine chemistry industry production equipment according to claim 1, it is characterized in that: described treatment unit also comprises the pressure filter (10) be connected for carrying out press filtration to the throw out in described settling pond (4) with described settling pond (4), and the liquid outlet of described pressure filter (10) is connected with described electrolyzer (5).
7. the treatment unit of the waste water from fluorine fine chemistry industry production equipment according to claim 1, it is characterized in that: described treatment unit also comprises the circulation device for being carried out circulating by the liquid in described electrolyzer (5), described circulation device comprise be connected with described electrolyzer (5) surge tank (11), be connected for the recycle pump (12) by liquid circulation with described electrolyzer (5) with described surge tank (11).
8. the treatment unit of the waste water from fluorine fine chemistry industry production equipment according to claim 7, it is characterized in that: described treatment unit also comprises the 5th storage tank (13) be connected with the discharge port of described electrolyzer (5), the 5th described storage tank (13) is connected with described settling pond (4) for the feed liquid in described electrolyzer (5) is carried out flocculating settling in described settling pond (4).
9. the treatment unit of the waste water from fluorine fine chemistry industry production equipment according to claim 8, is characterized in that: described surge tank (11) is connected with described electrolyzer (5) by the 5th described storage tank (13).
10. the treatment unit of the waste water from fluorine fine chemistry industry production equipment according to claim 7, it is characterized in that: described treatment unit also comprises the device for absorbing tail gas be connected with the air outlet of described preatreating reactors (2), the described air outlet except fluorine reactor (3), the air outlet of described settling pond (4), the 5th storage tank (13) respectively, and device for absorbing tail gas comprises blower fan (14), tail gas absorber (15) and off-gas pump (16).
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| CN201521003433.9U CN205170574U (en) | 2015-12-07 | 2015-12-07 | Processing apparatus who comes from waste water of meticulous chemical production device of fluorine |
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| CN201521003433.9U CN205170574U (en) | 2015-12-07 | 2015-12-07 | Processing apparatus who comes from waste water of meticulous chemical production device of fluorine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824166A (en) * | 2017-11-23 | 2019-05-31 | 上海江柘环境工程技术有限公司 | Photovoltaic wastewater processing system and processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824166A (en) * | 2017-11-23 | 2019-05-31 | 上海江柘环境工程技术有限公司 | Photovoltaic wastewater processing system and processing method |
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