CN108793508A - A kind of cooperative processing method of high concentration cyanide waste water from dyestuff and condensation waste water - Google Patents
A kind of cooperative processing method of high concentration cyanide waste water from dyestuff and condensation waste water Download PDFInfo
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- CN108793508A CN108793508A CN201810775417.3A CN201810775417A CN108793508A CN 108793508 A CN108793508 A CN 108793508A CN 201810775417 A CN201810775417 A CN 201810775417A CN 108793508 A CN108793508 A CN 108793508A
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/18—Cyanides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Invention is related to a kind of cooperative processing method of high concentration cyanide waste water from dyestuff and condensation waste water, belongs to field of environment protection.Condensation waste water in the DYE PRODUCTION technique waste water of high concentration cyanide in holding vessel one and holding vessel two is delivered to liquid mixer with pump, form composite waste, gravity flow enters each reactor from mixer, the gas of generation is delivered to absorption plant absorption, composite waste is subjected to press filtration, pressing filtering liquid and filter-press residues are handled respectively.The present invention is directed to this high concentration cyanide waste water from dyestuff and condensation waste water, provide cooperative processing method, solves great environmental issue for the production industry of disperse dyes, solvent dye and dyestuff intermediate, that realizes high concentration cyanide waste water from dyestuff and condensation waste water cooperates with processing, and recovery of cyanide, reach the treatment of wastes with processes of wastes against one another, the purpose to turn waste into wealth, environment and remarkable economic and social benefits.
Description
Technical field
The invention belongs to field of environment protection more particularly to chemical wastewater treatment methods, and in particular to a kind of high concentration cyaniding
The cooperative processing method of object waste water from dyestuff and condensation waste water.
Background technology
In the production industry of disperse dyes, solvent dye and dyestuff intermediate, cyanide, concentrated sulfuric acid etc. are that production is former
Material, dyeing generate high concentration cyanide waste water from dyestuff, condensation process generate condensation waste water containing the high concentration concentrated sulfuric acid and
Mandelic acid, the sector inevitably generate the contracting of high concentration cyanide waste water from dyestuff and high concentration sulphuric acid and mandelic acid
Close waste water.High concentration cyanide waste water from dyestuff has toxicity big, and intractability is high, and waste component is complicated, and pollutant concentration is high
Etc. characteristics, current treatment technology be mainly oxidizing process and conversion method, and using oxidating chemicals by the cyanide oxidation in waste water
For nontoxic substance, either cyanide is converted to using the addition of medicament the substance of nontoxic or less toxic low evil, it should
Processing method poor processing effect, it is of high cost, the cyanide in waste water can not be recycled, waste water subsequent treatment process index is influenced.Contracting
The sulfuric acid and mandelic acid for containing high concentration in waste water are closed, corrosivity is strong, and oxidisability is strong, and waste component is complicated, and intractability is big,
Processing cost is high, and treatment technology is mainly neutralisation at present, and using basic agents such as sodium hydroxides, by the sulphur in condensation waste water
Acid and mandelic acid are converted into neutral substance, remove its corrosivity and oxidisability, the processing method is of high cost, poor processing effect.
Invention content
The present invention provides a kind of cooperative processing method of high concentration cyanide waste water from dyestuff and condensation waste water, to solve pole
The problem of high concentration cyanide waste water from dyestuff and condensation waste water pollution environment.
The technical solution adopted by the present invention is that including the following steps：
(1) high concentration cyanide waste water from dyestuff is pumped into holding vessel one；
(2) condensation waste water is pumped into holding vessel two；
(3) it will be condensed in the DYE PRODUCTION technique waste water of high concentration cyanide in holding vessel one and holding vessel two with pump useless
Water is delivered to liquid mixer, and high concentration cyanide waste water from dyestuff and condensation waste water is made uniformly to mix, and forms composite waste；
(4) composite waste flows automatically directly from mixer into reactor one, reactor two, reactor three, reactor
In four；
(5) composite waste enters buffer reservoir directly from stream in reactor four；
(6) composite waste is delivered to using pump in reactor five in buffer reservoir, is then flow automatically into reactor six, instead
It answers in device seven, reactor eight；
Using wind turbine, by reactor one, reactor two, reactor three, reactor four, reactor five, reactor six, reaction
The gas generated in device seven, reactor eight is delivered to absorption plant absorption, and absorbing liquid uses sodium hydroxide solution；
(7) composite waste enters directly from stream in dashpot in reactor eight；
(8) composite waste uses screw pump in dashpot, is delivered to filter press system and carries out press filtration；
(9) pressing filtering liquid after press filtration is directly discharged to Industrial Waste Water Treatments factory, is handled；
(10) filter-press residues after press filtration are directly given qualified processing unit and are handled.
In step (1) of the present invention, in high concentration cyanide waste water from dyestuff concentration of cyanide be 7000mg/L~
14000mg/L, pH value are 11~13, and the wastewater flow rate of 8h can be stored in holding vessel one.
In step (2) of the present invention, condensation waste water major pollutants are acid, and wherein sulfuric acid content accounts for 50%~70%,
Almond acid content accounts for 20%~40%.
In step (3) of the present invention, the mixed proportion of high concentration cyanide waste water from dyestuff and condensation waste water be (3~
4):1, so that high concentration cyanide waste water from dyestuff and condensation waste water is uniformly mixed by liquid mixer, form composite waste, mixes
It is 1.6~2.0 to close pH value of waste water.
In step (4) of the present invention, the composite waste stop of reactor one, reactor two, reactor three, reactor four
Time is respectively 1.5h~2h.
In step (5) of the present invention, the composite waste residence time in buffer reservoir is 0.2h~0.3h.
In step (6) of the present invention, the composite waste residence time in reactor five, reactor six be respectively 0.5h~
Sodium hydroxide is added into reactor five, reactor six in 1h, and it is 8~9 to make pH value in reactor five, reactor six.
In step (6) of the present invention, the residence time of composite waste is respectively 1h in reactor seven, reactor eight, to
Sodium hydroxide and hydrogen peroxide are added in reactor seven, reactor eight, it is 8~9 to keep composite waste pH value, the addition of hydrogen peroxide
For reactor seven, eight dischargeable capacity of reactor 5/10000ths.
In step (6) of the present invention, gas forms sodium cyanide solution after absorbing, and is back to use in enterprise's technological process.
In step (7) of the present invention, the composite waste residence time in dashpot is 1h.
Beneficial effects of the present invention：
The present invention high concentration cyanide dyestuff in the production industry according to disperse dyes, solvent dye and dyestuff intermediate
The characteristic of the characteristic contamination of waste water and condensation waste water, selects appropriate process route, take treatment of wastes with processes of wastes against one another collaboration processing+neutralization+
The technical method of hydrogen peroxide advanced treating has achieved the purpose that collaboration processing waste water from dyestuff and condensation waste water, and has recycled
Cyanide, realization are turned waste into wealth.The present invention proposes that technological process is simple, process operation safety, treatment effect are stable, pollutant is gone
Except the cooperative processing method that rate is high, does not generate secondary pollution, operating cost the lower treatment of wastes with processes of wastes against one another, turns waste into wealth.The present invention makees
Treatment technology is cooperateed with for a kind of high concentration cyanide waste water from dyestuff and condensation waste water, treated, and pressing filtering liquid reaches industrial dirty
Water treatment plant enters factory's requirement, and total cyanide concentration is less than 20mg/L, and carrying out integrated treatment for subsequent Industrial Waste Water Treatments factory establishes
Basis is determined；Treated, and filter-press residues belong to hazardous waste, hand over to and are handled by the unit of qualification, if there is phase in enterprise oneself
Qualification is closed, can voluntarily be handled.The present invention realizes cooperate with processing of the high concentration cyanide waste water from dyestuff with condensation waste water, and returns
Receipts cyanide, reaches the treatment of wastes with processes of wastes against one another, the purpose to turn waste into wealth, environment and remarkable economic and social benefits.
Specific implementation mode
Embodiment 1
Include the following steps：
(1) high concentration cyanide waste water from dyestuff is pumped into holding vessel one；
(2) condensation waste water is pumped into holding vessel two；
(3) it will be condensed in the DYE PRODUCTION technique waste water of high concentration cyanide in holding vessel one and holding vessel two with pump useless
Water is delivered to liquid mixer, and high concentration cyanide waste water from dyestuff and condensation waste water is made uniformly to mix, and forms composite waste；
(4) composite waste flows automatically directly from mixer into reactor one, reactor two, reactor three, reactor
In four；
(5) composite waste enters buffer reservoir directly from stream in reactor four；
(6) composite waste is delivered to using pump in reactor five in buffer reservoir, is then flow automatically into reactor six, instead
It answers in device seven, reactor eight；
Using wind turbine, by reactor one, reactor two, reactor three, reactor four, reactor five, reactor six, reaction
The gas generated in device seven, reactor eight is delivered to absorption plant absorption, and absorbing liquid uses sodium hydroxide solution；
(7) composite waste enters directly from stream in dashpot in reactor eight；
(8) composite waste uses screw pump in dashpot, is delivered to filter press system and carries out press filtration；
(9) pressing filtering liquid after press filtration is directly discharged to Industrial Waste Water Treatments factory, is handled；
(10) filter-press residues after press filtration are directly given qualified processing unit and are handled.
In step (1) of the present invention, in high concentration cyanide waste water from dyestuff concentration of cyanide be 7000mg/L~
14000mg/L, pH value are 11~13, and the wastewater flow rate of 8h can be stored in holding vessel one；
In step (2) of the present invention, condensation waste water major pollutants are acid, and wherein sulfuric acid content accounts for 50%~70%,
Almond acid content accounts for 20%~40%；
In step (3) of the present invention, the mixed proportion of high concentration cyanide waste water from dyestuff and condensation waste water is 3:1,
So that high concentration cyanide waste water from dyestuff and condensation waste water is uniformly mixed by liquid mixer, form composite waste, mixing is useless
Water pH value is 1.6；
In step (4) of the present invention, the composite waste stop of reactor one, reactor two, reactor three, reactor four
Time is respectively 1.5h；
In step (5) of the present invention, the composite waste residence time in buffer reservoir is 0.2h；
In step (6) of the present invention, the composite waste residence time in reactor five, reactor six is respectively 0.5h,
Sodium hydroxide is added into reactor five, reactor six, it is 8 to make pH value in reactor five, reactor six；
In step (6) of the present invention, the residence time of composite waste is respectively 1h in reactor seven, reactor eight, to
Sodium hydroxide and hydrogen peroxide are added in reactor seven, reactor eight, it is 8 to keep composite waste pH value, and the addition of hydrogen peroxide is
5/10000ths of reactor seven, eight dischargeable capacity of reactor；
In step (6) of the present invention, gas forms sodium cyanide solution after absorbing, and is back to use in enterprise's technological process；
In step (7) of the present invention, the composite waste residence time in dashpot is 1h.
Embodiment 2
Include the following steps：
(1) high concentration cyanide waste water from dyestuff is pumped into holding vessel one；
(2) condensation waste water is pumped into holding vessel two；
(3) it will be condensed in the DYE PRODUCTION technique waste water of high concentration cyanide in holding vessel one and holding vessel two with pump useless
Water is delivered to liquid mixer, and high concentration cyanide waste water from dyestuff and condensation waste water is made uniformly to mix, and forms composite waste；
(4) composite waste flows automatically directly from mixer into reactor one, reactor two, reactor three, reactor
In four；
(5) composite waste enters buffer reservoir directly from stream in reactor four；
(6) composite waste is delivered to using pump in reactor five in buffer reservoir, is then flow automatically into reactor six, instead
It answers in device seven, reactor eight；
Using wind turbine, by reactor one, reactor two, reactor three, reactor four, reactor five, reactor six, reaction
The gas generated in device seven, reactor eight is delivered to absorption plant absorption, and absorbing liquid uses sodium hydroxide solution；
(7) composite waste enters directly from stream in dashpot in reactor eight；
(8) composite waste uses screw pump in dashpot, is delivered to filter press system and carries out press filtration；
(9) pressing filtering liquid after press filtration is directly discharged to Industrial Waste Water Treatments factory, is handled；
(10) filter-press residues after press filtration are directly given qualified processing unit and are handled.
In step (1) of the present invention, in high concentration cyanide waste water from dyestuff concentration of cyanide be 7000mg/L~
14000mg/L, pH value are 11~13, and the wastewater flow rate of 8h can be stored in holding vessel one；
In step (2) of the present invention, condensation waste water major pollutants are acid, and wherein sulfuric acid content accounts for 50%~70%,
Almond acid content accounts for 20%~40%；
In step (3) of the present invention, the mixed proportion of high concentration cyanide waste water from dyestuff and condensation waste water is 3.5:
1, so that high concentration cyanide waste water from dyestuff and condensation waste water is uniformly mixed by liquid mixer, forms composite waste, mixing
PH value of waste water is 1.8；
In step (4) of the present invention, the composite waste stop of reactor one, reactor two, reactor three, reactor four
Time is respectively 1.8；
In step (5) of the present invention, the composite waste residence time in buffer reservoir is 0.25h；
In step (6) of the present invention, the composite waste residence time in reactor five, reactor six is respectively 0.8h,
Sodium hydroxide is added into reactor five, reactor six, it is 8.5 to make pH value in reactor five, reactor six；
In step (6) of the present invention, the residence time of composite waste is respectively 1h in reactor seven, reactor eight, to
Sodium hydroxide and hydrogen peroxide are added in reactor seven, reactor eight, it is 8.5 to keep composite waste pH value, the addition of hydrogen peroxide
For reactor seven, eight dischargeable capacity of reactor 5/10000ths；
In step (6) of the present invention, gas forms sodium cyanide solution after absorbing, and is back to use in enterprise's technological process；
In step (7) of the present invention, the composite waste residence time in dashpot is 1h.
Embodiment 3
Include the following steps：
(1) high concentration cyanide waste water from dyestuff is pumped into holding vessel one；
(2) condensation waste water is pumped into holding vessel two；
(3) it will be condensed in the DYE PRODUCTION technique waste water of high concentration cyanide in holding vessel one and holding vessel two with pump useless
Water is delivered to liquid mixer, and high concentration cyanide waste water from dyestuff and condensation waste water is made uniformly to mix, and forms composite waste；
(4) composite waste flows automatically directly from mixer into reactor one, reactor two, reactor three, reactor
In four；
(5) composite waste enters buffer reservoir directly from stream in reactor four；
(6) composite waste is delivered to using pump in reactor five in buffer reservoir, is then flow automatically into reactor six, instead
It answers in device seven, reactor eight；
Using wind turbine, by reactor one, reactor two, reactor three, reactor four, reactor five, reactor six, reaction
The gas generated in device seven, reactor eight is delivered to absorption plant absorption, and absorbing liquid uses sodium hydroxide solution；
(7) composite waste enters directly from stream in dashpot in reactor eight；
(8) composite waste uses screw pump in dashpot, is delivered to filter press system and carries out press filtration；
(9) pressing filtering liquid after press filtration is directly discharged to Industrial Waste Water Treatments factory, is handled；
(10) filter-press residues after press filtration are directly given qualified processing unit and are handled.
In step (1) of the present invention, in high concentration cyanide waste water from dyestuff concentration of cyanide be 7000mg/L~
14000mg/L, pH value are 11~13, and the wastewater flow rate of 8h can be stored in holding vessel one；
In step (2) of the present invention, condensation waste water major pollutants are acid, and wherein sulfuric acid content accounts for 50%~70%,
Almond acid content accounts for 20%~40%；
In step (3) of the present invention, the mixed proportion of high concentration cyanide waste water from dyestuff and condensation waste water is 4:1,
So that high concentration cyanide waste water from dyestuff and condensation waste water is uniformly mixed by liquid mixer, form composite waste, mixing is useless
Water pH value is 2.0；
In step (4) of the present invention, the composite waste stop of reactor one, reactor two, reactor three, reactor four
Time is respectively 2h；
In step (5) of the present invention, the composite waste residence time in buffer reservoir is 0.3h；
In step (6) of the present invention, the composite waste residence time in reactor five, reactor six is respectively 1h, to
Sodium hydroxide is added in reactor five, reactor six, it is 9 to make pH value in reactor five, reactor six；
In step (6) of the present invention, the residence time of composite waste is respectively 1h in reactor seven, reactor eight, to
Sodium hydroxide and hydrogen peroxide are added in reactor seven, reactor eight, it is 9 to keep composite waste pH value, and the addition of hydrogen peroxide is
5/10000ths of reactor seven, eight dischargeable capacity of reactor；
In step (6) of the present invention, gas forms sodium cyanide solution after absorbing, and is back to use in enterprise's technological process；
In step (7) of the present invention, the composite waste residence time in dashpot is 1h.
Claims (10)
1. a kind of cooperative processing method of high concentration cyanide waste water from dyestuff and condensation waste water, which is characterized in that including following
Step：
(1) high concentration cyanide waste water from dyestuff is pumped into holding vessel one；
(2) condensation waste water is pumped into holding vessel two；
(3) with pumping that condensation waste water in the DYE PRODUCTION technique waste water of high concentration cyanide in holding vessel one and holding vessel two is defeated
It send to liquid mixer, high concentration cyanide waste water from dyestuff and condensation waste water is made uniformly to mix, form composite waste；
(4) during the composite waste is directly from gravity flow in mixer into reactor one, reactor two, reactor three, reactor four；
(5) composite waste enters buffer reservoir directly from stream in reactor four；
(6) composite waste is delivered to using pump in reactor five in buffer reservoir, and then gravity flow enters reactor six, reactor
Seven, in reactor eight；
Using wind turbine, by reactor one, reactor two, reactor three, reactor four, reactor five, reactor six, reactor
Seven, the gas generated in reactor eight is delivered to absorption plant absorption, and absorbing liquid uses sodium hydroxide solution；
(7) composite waste enters directly from stream in dashpot in reactor eight；
(8) composite waste uses screw pump in dashpot, is delivered to filter press system and carries out press filtration；
(9) pressing filtering liquid after press filtration is directly discharged to Industrial Waste Water Treatments factory, is handled；
(10) filter-press residues after press filtration are directly given qualified processing unit and are handled.
2. the cooperative processing method of a kind of high concentration cyanide waste water from dyestuff and condensation waste water according to claim 1,
It is characterized in that：In the step (1), in high concentration cyanide waste water from dyestuff concentration of cyanide be 7000mg/L~
14000mg/L, pH value are 11~13, and the wastewater flow rate of 8h can be stored in holding vessel one.
3. the cooperative processing method of a kind of high concentration cyanide waste water from dyestuff and condensation waste water according to claim 1,
It is characterized in that：In the step (2), condensation waste water major pollutants are acid, and wherein sulfuric acid content accounts for 50%~70%, almond
Acid content accounts for 20%~40%.
4. the cooperative processing method of a kind of high concentration cyanide waste water from dyestuff and condensation waste water according to claim 1,
It is characterized in that：In the step (3), the mixed proportion of high concentration cyanide waste water from dyestuff and condensation waste water is (3~4):
1, so that high concentration cyanide waste water from dyestuff and condensation waste water is uniformly mixed by liquid mixer, forms composite waste, mixing
PH value of waste water is 1.6~2.0.
5. the cooperative processing method of a kind of high concentration cyanide waste water from dyestuff and condensation waste water according to claim 1,
It is characterized in that：In the step (4), reactor one, reactor two, reactor three, reactor four composite waste stop when
Between be respectively 1.5h~2h.
6. the cooperative processing method of a kind of high concentration cyanide waste water from dyestuff and condensation waste water according to claim 1,
It is characterized in that：In the step (5), the composite waste residence time in buffer reservoir is 0.2h~0.3h.
7. the cooperative processing method of a kind of high concentration cyanide waste water from dyestuff and condensation waste water according to claim 1,
It is characterized in that：In the step (6), the composite waste residence time in reactor five, reactor six is respectively 0.5h~1h,
Sodium hydroxide is added into reactor five, reactor six, it is 8~9 to make pH value in reactor five, reactor six.
8. the cooperative processing method of a kind of high concentration cyanide waste water from dyestuff and condensation waste water according to claim 1,
It is characterized in that：In the step (6), the residence time of composite waste is respectively 1h in reactor seven, reactor eight, to reaction
Sodium hydroxide and hydrogen peroxide are added in device seven, reactor eight, it is 8~9 to keep composite waste pH value, and the addition of hydrogen peroxide is anti-
Answer device seven, eight dischargeable capacity of reactor 5/10000ths.
9. the cooperative processing method of a kind of high concentration cyanide waste water from dyestuff and condensation waste water according to claim 1,
It is characterized in that：In the step (6), gas forms sodium cyanide solution after absorbing, and is back to use in enterprise's technological process.
10. the cooperative processing method of a kind of high concentration cyanide waste water from dyestuff and condensation waste water according to claim 1,
It is characterized in that：In the step (7), the composite waste residence time in dashpot is 1h.
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|---|---|---|---|
| CN201810775417.3A CN108793508A (en) | 2018-07-15 | 2018-07-15 | A kind of cooperative processing method of high concentration cyanide waste water from dyestuff and condensation waste water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810775417.3A CN108793508A (en) | 2018-07-15 | 2018-07-15 | A kind of cooperative processing method of high concentration cyanide waste water from dyestuff and condensation waste water |
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| CN108793508A true CN108793508A (en) | 2018-11-13 |
Family
ID=64076542
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3736239A (en) * | 1971-03-18 | 1973-05-29 | Us Interior | Neutralization of metal containing wastes |
| CN103086538A (en) * | 2013-01-10 | 2013-05-08 | 浙江迪邦化工有限公司 | Method for treating dye wastewater by utilizing dye intermediate effluent |
| CN105523663A (en) * | 2015-12-23 | 2016-04-27 | 厦门市同利源电气设备有限公司 | Processing technology of electroplating wastewater |
| CN107487953A (en) * | 2017-09-22 | 2017-12-19 | 长春黄金研究院 | A kind of high-efficiency pretreatment method of high concentration waste water from dyestuff containing cyanogen |
| CN107954547A (en) * | 2017-11-27 | 2018-04-24 | 长春黄金研究院 | A kind of waste water from dyestuff purification method of the cyanide containing high concentration |
-
2018
- 2018-07-15 CN CN201810775417.3A patent/CN108793508A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3736239A (en) * | 1971-03-18 | 1973-05-29 | Us Interior | Neutralization of metal containing wastes |
| CN103086538A (en) * | 2013-01-10 | 2013-05-08 | 浙江迪邦化工有限公司 | Method for treating dye wastewater by utilizing dye intermediate effluent |
| CN105523663A (en) * | 2015-12-23 | 2016-04-27 | 厦门市同利源电气设备有限公司 | Processing technology of electroplating wastewater |
| CN107487953A (en) * | 2017-09-22 | 2017-12-19 | 长春黄金研究院 | A kind of high-efficiency pretreatment method of high concentration waste water from dyestuff containing cyanogen |
| CN107954547A (en) * | 2017-11-27 | 2018-04-24 | 长春黄金研究院 | A kind of waste water from dyestuff purification method of the cyanide containing high concentration |
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Application publication date: 20181113 |
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