CN105712465A - Chemical nickel wastewater treatment agent - Google Patents
Chemical nickel wastewater treatment agent Download PDFInfo
- Publication number
- CN105712465A CN105712465A CN201610296684.3A CN201610296684A CN105712465A CN 105712465 A CN105712465 A CN 105712465A CN 201610296684 A CN201610296684 A CN 201610296684A CN 105712465 A CN105712465 A CN 105712465A
- Authority
- CN
- China
- Prior art keywords
- chemical nickel
- waste water
- nickel
- oxidant
- alkaline matter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 52
- 239000000126 substance Substances 0.000 title claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 20
- 238000004065 wastewater treatment Methods 0.000 title abstract description 4
- 239000002351 wastewater Substances 0.000 claims abstract description 53
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 24
- 239000007800 oxidant agent Substances 0.000 claims abstract description 19
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000000292 calcium oxide Substances 0.000 claims abstract description 7
- SRRKNRDXURUMPP-UHFFFAOYSA-N sodium disulfide Chemical compound [Na+].[Na+].[S-][S-] SRRKNRDXURUMPP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 4
- 230000001590 oxidative effect Effects 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 9
- 239000011574 phosphorus Substances 0.000 abstract description 9
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 7
- 231100000719 pollutant Toxicity 0.000 abstract description 7
- 238000009713 electroplating Methods 0.000 abstract description 6
- 229910001453 nickel ion Inorganic materials 0.000 abstract description 6
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 abstract description 2
- 235000017550 sodium carbonate Nutrition 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 17
- 238000007747 plating Methods 0.000 description 17
- 239000003814 drug Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical class O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- 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
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a chemical nickel wastewater treatment agent which comprises 70-90 wt% of alkaline matter and 10-30 wt% of oxidizer. The chemical nickel wastewater treatment agent is characterized in that the alkaline matter is one or more of NaOH, Na2CO3 and CaO; and the oxidizer is H2O2 or/and Na2S2. The agent is used for treating chemical nickel wastewater and implementing complete and thorough settling of nickel ions and phosphorus; and the water quality completely satisfies the discharge standard in Table 3 in GB21900-2008 Electroplating Pollutant Discharge Standard.
Description
Technical field
The invention belongs to field of industrial waste water treatment, particularly relate to the process of chemical nickel waste water.
Background technology
There is chemical nickel plating current nearly all plating industrial district, and the waste water produced in chemical nickel plating is referred to as changing
Learning nickel waste water, chemical nickel waste component is more complicated, comprises hypophosphites, phosphite, additive etc. multiple
Material, wherein the chelating agent in waste water can be combined with nickel ion and form the little molecule of complexation that performance is more stable, leads
Cause nickel ion to be difficult to form nickel hydroxide precipitate with hydroxyl, and the total phosphorus content in waste water is the highest, therefore changes
Learning nickel waste water intractability very big, total nickel, total phosphorus are extremely difficult to GB21900_2008 " plating pollutant emission
Standard " table 3 discharge standard.
Existing handling principle is first with oxidizing contact breaks such as sodium hypochlorite, then adds alkali and agent reaction precipitation of recapturing,
Finally add PAC, PAM reaction precipitation again again.Handling process is as shown in Figure 1.There is various problems demand in it
Solving, as big in (1) investment, occupation of land is many, and energy resource consumption is big；(2) technological process is long, operational management difficulty
Greatly, labor strength is big, and operating cost is high；(3) stable operation qualified discharge it is difficult to.
Summary of the invention
The invention provides a kind of inorganic agent for chemical nickel waste water, it is achieved nickel ion and phosphorus settle thoroughly completely,
Water quality is fully achieved GB21900_2008 " plating pollutant emission standard " table 3 discharge standard.
It is an object of the invention to be realized by following measures:
A kind of chemical nickel waste water treating agent, including alkaline matter and oxidant, it is characterised in that: described basic species
Matter is NaOH, Na2CO3, one or more in CaO, described oxidant is H2O2Or/and Na2S2；Alkalescence
Material 70-90%, oxidant 10-30%, by weight percentage.
Preferably, above-mentioned alkaline matter is NaOH, CaO and Na of 3-5: 1-2: 1-2 mass percent2CO3,
Oxidant is the H of 4-6: 1-2 mass percent2O2And Na2S2, alkaline matter is 75-85%, and oxidant is
15-25%, by weight percentage.
The processing method of above-mentioned chemical nickel waste water, comprises the following steps: described inorganic agent is added chemical nickel waste water
Carry out aoxidizing contact break reaction, control pH value 10-12, aeration agitation, react 15-40 minute, enter back into
Reaction tank, adds flocculation aid, and through sedimentation tank, supernatant enters clear water reserviors, filtering emission；In squeezing sedimentation tank
Mud, the filtrate after squeezing returns to regulating reservoir, and the mud after squeezing carries out solid Slag treatment.
The processing method of above-mentioned chemical nickel waste water, comprises the following steps: chemical nickle-plating wastewater is adjusted pond and enters
Oxidation contact break reaction tank, adds described chemical nickel waste water treating agent, is sufficiently stirred for, until waste water in reaction tank
PH value is 11, after reacting 15 minutes, enters reaction tank, adds polystyrene amide and helps solidifying, subsequently into
Sedimentation tank precipitates, and in sedimentation tank, supernatant enters clear water collecting pit after nickel on-line monitoring is qualified, adjusts back with acid
Outer row after pH value 6-9；Mud in sedimentation tank squeezes, and the filtrate after squeezing returns to regulating reservoir, squeezing
After mud carry out solid Slag treatment.
Beneficial effect
1. chemical nickel waste water is alkalescence, the present invention under the synergism of appropriate alkaline matter and oxidant,
Realizing nickel ion and phosphorus settles thoroughly completely, water quality is fully achieved GB21900_2008 " plating pollutant emission
Standard " table 3 discharge standard, and the most up to standard, compliance rate is (table 3 standard: total more than 99.9%
Nickel 0.1mg/l, total phosphorus 0.5mg/l).
Raw material the most of the present invention is simple and easy to get, it is easy to make powder, and cost is 3.00 yuan/kg.
3. the inorganic agent of the present invention replaces oxidant, NaOH, recapture agent, PAC etc.；Use with two reaction tanks,
One sedimentation tank replaces four reaction tanks of current technology, two sedimentation tank sedimentation nickel ions and phosphorus；Sedimentation is fast,
Solid-liquid separation is good, complete qualified discharge.
4. the present invention is under conditions of the water yield identical with current technology technical finesse, is saving occupation of land, facility throwing
Money, labour force and treatment operating costs aspect are all more than 50%.Such as total nickel concentration in chemical nickel waste water
In the case of 100mg/L, total phosphorus concentration 120mg/L, current technology treatment operating costs 40-60 unit/T, this
Invention treatment operating costs 20-30 unit/T.
Accompanying drawing explanation
The existing handling process of Fig. 1 chemical nickel waste water；
Fig. 2 present invention processes chemical nickel waste water flow process.
Detailed description of the invention
Referring to the drawings, below by embodiment, the present invention is specifically described, it is necessary to it is pointed out here that be
Following example are served only for being further described the present invention, it is impossible to be interpreted as the limit to scope
System, the present invention can be made some nonessential improvement according to the invention described above content by those skilled in the art
And adjustment.
Embodiment 1
Great vertical electroplating wastewater processing station, Chongqing was put into operation in 2012, and treating capacity is 1000 ton day.Due to
It is that chemical nickel waste water is 50 ton day, this station chemical nickel influent waste water containing chemical nickel waste water inside plastic electroplating
Water quality is: total nickel 80mg/L.Just begun with is old Technology, complex process long flow path (1 tune
Joint pond, 4 reaction tanks, sedimentation tanks), medicament kind many (5 kinds of medicaments), cost is high: process one ton
Chemical nickel waste water reagent cost 20 yuan, at the cost 10 yuan, and waste water such as water, electricity, artificial, facilities and equipment
The nickel index of reason can not stably reaching standard.After in October, 2013 my company catcher operational management waste water station, application this
" TL chemical nickel waste water treating agent " and the Technology of invention solve this difficult problem, simplify technological process
(1 regulating reservoir, 2 reaction tanks, 1 sedimentation tank), decrease medicament kind (2 kinds of medicaments), significantly subtract
Lacked construction cost and the operating cost of waste water station, processed one ton of chemical nickel waste water reagent cost 8 yuan, water, electricity,
Manually, the cost 7 yuan such as facilities and equipment, and compliance rate (GB21900-2008 " electricity more than 99.9% after processing
Plating pollutant emission standard " table 3).
TL chemical nickel waste water treating agent: alkaline matter is 80wt%, and alkaline matter is according to 3: 1: 1 mass percents
NaOH, CaO and Na2CO3；Oxidant is 20wt%, and oxidant is the H of 3: 1 mass percents2O2With
Na2S2。
Processing procedure: chemical nickle-plating wastewater is adjusted pond and enters oxidation contact break reaction tank, add " TL chemistry
Nickel waste water inorganic agent ", it is sufficiently stirred for, until the pH value of waste water is 11 in reaction tank, after reacting 15 minutes,
Add the polystyrene amide PAM flocculation aid of ten thousand/concentration, precipitate subsequently into sedimentation tank, precipitation
In pond, supernatant enters clear water collecting pit after nickel on-line monitoring is qualified, with outer row after acid readjustment pH value 6-9；
Sludge pressing in sedimentation tank, the filtrate after squeezing returns chemical nickel wastewater equalization pond, and the mud after squeezing carries out solid
Slag treatment.
Embodiment 2
The present invention is applied in March, 2014, progressively expands and is applied to fine jade pearl electroplating wastewater station, Chongqing, Chongqing perseverance
Machinery Manufacturing Co., Ltd. of section (plating industrial district), Chongqing intelligence human relations plating company limited (plating industrial district)
Deng four units, day process electroplating wastewater and reach 3800m3Above, through city, environmental administration of district repeatedly supervision inspection
Survey, never occurred that discharge beyond standards phenomenon, total nickel, total phosphorus were entirely capable of reaching table 3 discharge standard, and be subject to for this
High evaluation.
Intelligence human relations electroplating wastewater processing station, Chongqing was put into operation in 2012, and treating capacity is 2000 ton day.Due to
Being that plating garden water quality is complicated, have several chemical nickel plating production lines in garden, chemical nickel waste water is 100 ton day,
This station chemical nickel influent waste water water quality is: total nickel 100mg/L.Just begun with is old Technology, technique
Complicated Flow length (1 regulating reservoir, 4 reaction tanks, sedimentation tanks), medicament kind many (5 kinds of medicaments),
Cost is high: process the costs such as one ton of chemical nickel waste water reagent cost 25 yuan, water, electricity, artificial, facilities and equipment
15 yuan, and the nickel index that waste water processes can not stably reaching standard.In October, 2013, I took over operational management at company
After waste water station, " TL chemical nickel waste water treating agent " and the Technology of the application present invention solve this difficult problem,
Simplify technological process (1 regulating reservoir, 2 reaction tanks, 1 sedimentation tank), decrease medicament kind (2
Plant medicament), greatly reduce construction cost and the operating cost of waste water station, process one ton of chemical nickel waste water medicament
Cost 10 yuan, the cost 8 yuan such as water, electricity, artificial, facilities and equipment, and after processing compliance rate 99.9% with
Upper (GB21900-2008 " plating pollutant emission standard " table 3).
TL chemical nickel waste water treating agent: alkaline matter is NaOH, CaO and Na of 2: 1: 1 mass percents2CO3,
Oxidant be oxidant be the H of 4: 1 mass percents2O2And Na2S2, alkaline matter is 78%, and oxidant is
22%, by weight percentage.
Process: its chemical nickle-plating wastewater is adjusted pond and enters oxidation contact break reaction tank, add this example " TL
Chemical nickel waste water treating agent ", it is sufficiently stirred for, until the pH value of waste water is 12 in reaction tank, reacts 30 minutes
After, adding PAM flocculation aid, precipitate subsequently into sedimentation tank, in sedimentation tank, supernatant is through nickel on-line monitoring
Clear water collecting pit is entered, with outer row after acid readjustment pH value 6-9 after qualified；Sludge pressing in sedimentation tank, pressure
Filtrate after squeezing returns chemical nickel wastewater equalization pond, and the mud after squeezing is disposed.
Table 1 GB21900_2008 " plating pollutant emission standard " table 3
Claims (2)
1. a chemical nickel waste water treating agent, including alkaline matter and oxidant, it is characterised in that: described alkaline matter is NaOH, Na2CO3, one or more in CaO, described oxidant is H2O2Or/and Na2S2；Alkaline matter 70-90%, oxidant 10-30%, by weight percentage.
2. chemical nickel waste water treating agent as claimed in claim 1, described alkaline matter is NaOH, CaO and Na of 3-5:1-2:1-2 mass percent2CO3, oxidant is the H of 4-6:1-2 mass percent2O2And Na2S2, alkaline matter is 75-85%, and oxidant is 15-25%, by weight percentage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296684.3A CN105712465B (en) | 2016-05-06 | 2016-05-06 | A kind of chemical nickel waste water treating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296684.3A CN105712465B (en) | 2016-05-06 | 2016-05-06 | A kind of chemical nickel waste water treating agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105712465A true CN105712465A (en) | 2016-06-29 |
| CN105712465B CN105712465B (en) | 2019-03-26 |
Family
ID=56161950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610296684.3A Expired - Fee Related CN105712465B (en) | 2016-05-06 | 2016-05-06 | A kind of chemical nickel waste water treating agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105712465B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115814A (en) * | 2016-08-03 | 2016-11-16 | 许祚员 | A kind of nickel sewage-treating agent and preparation method thereof |
| CN109607859A (en) * | 2018-12-21 | 2019-04-12 | 上海同济建设科技股份有限公司 | A kind of synthesis class pharmacy waste water complexing nickel treatment process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52105573A (en) * | 1976-03-03 | 1977-09-05 | Ebara Infilco Co Ltd | Treatment of acid washing waste liquid |
| CN102153217A (en) * | 2011-03-04 | 2011-08-17 | 漆雅丽 | Electroplating integrated wastewater treatment method |
| CN102167436A (en) * | 2011-03-04 | 2011-08-31 | 漆雅丽 | Electroplating wastewater treating agent |
| CN104086022A (en) * | 2014-06-27 | 2014-10-08 | 华南理工大学 | Treatment method of nickel-containing wastewater |
| CN104860438A (en) * | 2015-05-05 | 2015-08-26 | 广州维桢化工科技有限公司 | Processing method for industrial wastewater, preparation and application of preparation |
-
2016
- 2016-05-06 CN CN201610296684.3A patent/CN105712465B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52105573A (en) * | 1976-03-03 | 1977-09-05 | Ebara Infilco Co Ltd | Treatment of acid washing waste liquid |
| CN102153217A (en) * | 2011-03-04 | 2011-08-17 | 漆雅丽 | Electroplating integrated wastewater treatment method |
| CN102167436A (en) * | 2011-03-04 | 2011-08-31 | 漆雅丽 | Electroplating wastewater treating agent |
| CN104086022A (en) * | 2014-06-27 | 2014-10-08 | 华南理工大学 | Treatment method of nickel-containing wastewater |
| CN104860438A (en) * | 2015-05-05 | 2015-08-26 | 广州维桢化工科技有限公司 | Processing method for industrial wastewater, preparation and application of preparation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115814A (en) * | 2016-08-03 | 2016-11-16 | 许祚员 | A kind of nickel sewage-treating agent and preparation method thereof |
| CN109607859A (en) * | 2018-12-21 | 2019-04-12 | 上海同济建设科技股份有限公司 | A kind of synthesis class pharmacy waste water complexing nickel treatment process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105712465B (en) | 2019-03-26 |
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