CN105481150A - Treatment equipment for wastewater containing heavy metal - Google Patents
Treatment equipment for wastewater containing heavy metal Download PDFInfo
- Publication number
- CN105481150A CN105481150A CN201610064979.8A CN201610064979A CN105481150A CN 105481150 A CN105481150 A CN 105481150A CN 201610064979 A CN201610064979 A CN 201610064979A CN 105481150 A CN105481150 A CN 105481150A
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- heavy metal
- contact break
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- adjustment tank
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2101/20—Heavy metals or heavy metal compounds
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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
- 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
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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
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
Abstract
The invention discloses treatment equipment for wastewater containing heavy metal. The treatment equipment for wastewater containing heavy metal comprises a first-stage pH regulation device, a complex brakeage device, a second-stage pH regulation device and a catalyst recovery device. The first-stage pH regulation device comprises a first-stage pH regulation tank, a pH meter, a stirrer and a first injection device used for injecting acid or alkali or an oxidizing agent into the first-stage pH regulation tank. The complex brakeage device comprises a catalyst complex breakage device body and an electro-catalysis complex breakage device body which are sequentially connected with the first-stage pH regulation device. The second-stage pH regulation device comprises a second-stage pH regulation tank, a pH meter, a stirrer and a second injection device used for injecting acid or alkali into the second-stage pH regulation tank. The catalyst recovery device is connected between the electro-catalysis complex breakage device body and the second-stage pH regulation tank. A middle water tank, a membrane filtration device and a deep purification column device which are sequentially connected are further arranged behind the second-stage pH regulation device. The treatment equipment is low in use cost, significant in heavy metal treatment effect, high in automation degree, strong in market competitiveness and capable of avoiding secondary pollution effectively and enables wastewater to meet standards stably.
Description
Technical field:
The present invention relates to heavy metal-containing wastewater treatment technical field, refer in particular to a kind of heavy metal-containing wastewater treatment equipment.
Background technology:
Electroplating industry is one of important basic activity of hyundai electronics industry development always.
In electroplating process, all kinds of materials in plating solution are along with the rinsing of plating piece, be brought in rinse water, produce a large amount of electroplate rinsing wastewaters, this waste component is complicated, and containing all kinds of complexing agent and buffer reagent, intractability is comparatively large, in addition, due in electroplating wastewater because of containing plurality of heavy metal, as let alone discharge, then can cause serious harm to environment.
Main processing ways for a long time for electroplating wastewater is ion-exchange or chemical precipitation, also has the methods such as minority trial electrolysis, membrane filtration, biomagnification.All there is defect in various degree in aforesaid method, as ion exchange method needs frequent regeneration, exchange capacity little, not exclusively, complex state metal ion is the problem such as free settling not for chemical method precipitation.Electrolytic process current consumption is large, and efficiency is low, and cost is much larger than income; Facility investment and the maintenance cost of membrane separation process are high, are vulnerable to Organic pollutants, and dense water still needs again to process, and therefore, above-mentioned method of establishing all does not have general applicability.
In addition, in electroplating wastewater, nickel-containing waste water is particularly difficult to process.Particularly chemical nickle-plating wastewater, wherein containing a large amount of citric acid, lactic acid, oxysuccinic acid, tartrate, Hypophosporous Acid, 50, acetic acid, succinic acid and tensio-active agent etc., complexing agent and nickel ion form stable complex compound, make nickel be difficult to remove.
In view of this, the present inventor proposes following technical scheme.
Summary of the invention:
The object of the invention is to overcome the deficiencies in the prior art, a kind of heavy metal-containing wastewater treatment equipment is provided.
In order to solve the problems of the technologies described above, present invention employs following technical proposals: this heavy metal-containing wastewater treatment equipment comprises: one-level pH setting device, and it comprises: for collecting the one-level pH adjustment tank of heavy metal-containing waste water and being installed on pH meter in pH adjustment tank, stirrer and the first injection device for injecting acid or alkali or oxygenant to one-level pH adjustment tank; One for carrying out the contact break device of contact break process to heavy metal-containing waste water, this contact break device comprises: the catalyzer contact break device that order is connected with one-level pH setting device and electrocatalysis contact break device; Secondary pH setting device, it comprises: for collecting the secondary pH adjustment tank of heavy metal-containing waste water and being installed on pH meter in secondary pH adjustment tank, stirrer and for injecting acid or alkali second injection device to secondary pH adjustment tank; One catalyst recovery devices, it is connected between described electrocatalysis contact break device and secondary pH adjustment tank; The intermediate water tank, membrane filter appts, the deep purifying column device that are linked in sequence also is provided with after described secondary pH setting device; The first described injection device comprises: acid solution injection device, alkaline liquid injection device and oxygenant injection device, it includes: bearing box, the pipeline connecting bearing box and described one-level pH adjustment tank and the pump be installed on pipeline, and is connected with one-level pH adjustment tank by pipeline; Coagulation tank and settling bath is provided with between described secondary pH setting device and intermediate water tank; Described catalyst recovery devices comprises the accumulator tank be connected between electrocatalysis contact break device and secondary pH adjustment tank, in funnel-form bottom this accumulator tank, and is provided with recovery channel; Described membrane filter appts comprises: suction pump, dope backflash, film pipe and back-purge system, wherein, described film pipe be in microfiltration membrane, ultra-filtration membrane, nanofiltration membrane or osmosis filtration film any one or more series combination.
Furthermore, in technique scheme, described catalyzer contact break device comprises: one first contact break groove, be installed on the stirrer in the first contact break groove and can to the catalyst injection device of the first contact break groove injecting catalyst.
Furthermore, in technique scheme, described electrocatalysis contact break device comprises: one second contact break groove, the power supply being installed on the electrode slice in the second contact break groove and electrically conducting with electrode slice.
Furthermore, in technique scheme, the second described injection device comprises: acid solution injection device and an alkaline liquid injection device, and it is connected with secondary pH adjustment tank respectively by pipeline.
Furthermore, in technique scheme, be also provided with reflux line outside described intermediate water tank, these reflux line two ends connect bottom and the top of intermediate water tank respectively.
Furthermore, in technique scheme, described deep purifying column device comprises at least two deep purifying Filter columns, be filled with the medium layer of adsorbable heavy metal in this deep purifying Filter column, this medium layer comprises the one or any combination in active carbon layer, resinbed, active zeolite layer, insoluble starch xantate layer; Described deep purifying Filter column is series combination and/or parallel combination.
After adopting technique scheme, the present invention has following beneficial effect compared with prior art: the present invention is applications catalyst catalysis technique and electrocatalysis technology simultaneously, the complex state of heavy metal ion (as nickel ion, cupric ion, lead ion etc.) is abolished in acceleration, speed of response is fast, saves facility investment and floor space.Secondly, set chemical reaction of the present invention, electrochemical reaction, physical filtering and physical and chemical adsorption are coupling in a system, form an organic whole, give full play to synergistic effect, with fully thorough heavy-metal ion removal (as nickel ion, cupric ion, lead ion etc.), the stable emission standard reaching national regulation, moreover, the present invention can modular design, and has the high advantage of level of automation.In addition, the present invention can by nickel ion in nickel-containing waste water from hundreds of milligrams per liter even liquid waste disposal of greater concn to below 0.1mg/L, meet the emission standard that emission request reaches national regulation, because the present invention has higher processing efficiency and stability and cheap processing cost, and recyclable heavy metal (as nickel, copper, lead etc.) resource, so that the present invention has application value.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Embodiment:
Below in conjunction with specific embodiments and the drawings, the present invention is further described.
Shown in Figure 1, for a kind of structural representation of heavy metal-containing wastewater treatment equipment, this heavy metal-containing wastewater treatment equipment comprises: the one-level pH setting device 1, be linked in sequence is for carrying out contact break device 2, catalyst recovery devices 4, secondary pH setting device 3 intermediate water tank 5, membrane filter appts 6, the deep purifying column device 7 of contact break process to heavy metal-containing waste water.
Described one-level pH setting device 1, it comprises: for the one-level pH adjustment tank 11 of collecting heavy metal-containing waste water and the pH meter 10, stirrer 20 and the first injection device 12 for injecting acid or alkali or oxygenant to one-level pH adjustment tank 11 that are installed in pH adjustment tank 11.
The first described injection device 12 comprises: acid solution injection device 121, alkaline liquid injection device 122 and oxygenant injection device 13, it includes: bearing box, the pipeline connecting bearing box and described one-level pH adjustment tank 11 and the pump be installed on pipeline, and is connected with one-level pH adjustment tank 11 by pipeline.
Described contact break device 2 comprises: the catalyzer contact break device 21 that order is connected with one-level pH setting device 1 and electrocatalysis contact break device 22.Contact break is prior art.
Described catalyzer contact break device 21 comprises: one first contact break groove 211, be installed on the stirrer 20 in the first contact break groove 211 and can to the catalyst injection device 212 of the first contact break groove 211 injecting catalyst.
Described electrocatalysis contact break device 22 comprises: one second contact break groove 221, the power supply 223 being installed on the electrode slice 222 in the second contact break groove 221 and electrically conducting with electrode slice 222.This second contact break groove 221 is communicated with the first described contact break groove 211.
Described secondary pH setting device 3 comprises: for collecting the secondary pH adjustment tank 31 of heavy metal-containing waste water and being installed on pH meter 10 in secondary pH adjustment tank 31, stirrer 20 and for injecting acid or alkali second injection device 32 to secondary pH adjustment tank 31.The second described injection device 32 comprises: an acid solution injection device 321 and alkaline liquid injection device 322, and it is connected with secondary pH adjustment tank 31 respectively by pipeline.
Coagulation tank and settling bath is provided with between described secondary pH setting device 3 and intermediate water tank 5.
Described catalyst recovery devices 4 is connected between described electrocatalysis contact break device 22 and secondary pH adjustment tank 31; Described catalyst recovery devices 4 comprises the accumulator tank 41 be connected between electrocatalysis contact break device 22 and secondary pH adjustment tank 31, in funnel-form bottom this accumulator tank 41, and is provided with recovery channel 42.Described accumulator tank 41 is communicated with secondary pH adjustment tank 31 with the second contact break groove 221 respectively.
Described secondary pH setting device 3 is also provided with the intermediate water tank 5, membrane filter appts 6, the deep purifying column device 7 that are linked in sequence below.Wherein, be also provided with reflux line 51 outside described intermediate water tank 5, these reflux line 51 two ends connect bottom and the top of intermediate water tank 5 respectively.
Described membrane filter appts 6 comprises: suction pump, dope backflash, film pipe and back-purge system, wherein, described film pipe be in microfiltration membrane, ultra-filtration membrane, nanofiltration membrane or osmosis filtration film any one or more series combination.Film pipe can concentrate the heavy metal ion be trapped in containing higher concentration in mud, can be caused in chemical heavy metal waste plating solution, can heavy metal reclaim, both increase economic efficiency, and avoided secondary pollution again.
Described deep purifying column device 7 comprises at least two deep purifying Filter columns 71, be filled with the medium layer of adsorbable heavy metal in this deep purifying Filter column 71, this medium layer comprises the one or any combination in active carbon layer, resinbed, active zeolite layer, insoluble starch xantate layer; Described deep purifying Filter column 71 is series combination and/or parallel combination.
In the present embodiment, described heavy metal is nickel.
Very low owing to entering heavy metal content in the described sewage crossed in deep purifying column device 7, deep purifying Filter column 71 can long-play and need not wash-out.Take off with pickling after deep purifying Filter column 71 is saturated close to absorption, containing single nickel salt in elutriant, can reclaim evaporative crystallization reclaim(ed) sulfuric acid nickel or be incorporated in chemical nickel waste plating solution, also can avoid secondary pollution.
When the present invention works, nickel-containing waste water is flowed into the one-level pH adjustment tank 11 in described one-level pH setting device 1 by pipeline, and inject acid or alkali or oxygenant by the first injection device 12, so that pH regulator is carried out to the nickel-containing waste water in one-level pH adjustment tank 11.Subsequently, catalyst contact break and electrocatalysis contact break is carried out by contact break device 2, after nickel ion forms free state or reduction, and reclaim catalyzer through catalyst recovery devices 4, secondary pH setting device 3 carries out pH value adjustment again, makes free metal ion and hydroxide radical form oxyhydroxide insolubles, and then flows into intermediate water tank 5, be evacuated to membrane filter appts 6 with suction pump again and carry out physical sepn, to remove most nickel.Finally, more remaining micro heavy ion is removed by deep purifying column device 7 further, and standard water discharge is discharged.
The present invention overcomes that original process nickel-containing waste water cost is high, weak effect, can not the problems such as stably reaching standard, the nickel excessive problem perplexing enterprise is for a long time solved.
Certainly, the foregoing is only specific embodiments of the invention, be not limit the scope of the present invention, all equivalences done according to structure, feature and principle described in the present patent application the scope of the claims change or modify, and all should be included in the present patent application the scope of the claims.
Claims (6)
1. a heavy metal-containing wastewater treatment equipment, is characterized in that: comprising:
One-level pH setting device (1), it comprises: for collecting the one-level pH adjustment tank (11) of heavy metal-containing waste water and being installed on pH meter (10) in pH adjustment tank (11), stirrer (20) and the first injection device (12) for injecting acid or alkali or oxygenant to one-level pH adjustment tank (11);
One for carrying out the contact break device (2) of contact break process to heavy metal-containing waste water, this contact break device (2) comprising: the catalyzer contact break device (21) that order is connected with one-level pH setting device (1) and electrocatalysis contact break device (22);
Secondary pH setting device (3), it comprises: for collecting the secondary pH adjustment tank (31) of heavy metal-containing waste water and being installed on pH meter (10) in secondary pH adjustment tank (31), stirrer (20) and for injecting acid or alkali second injection device (32) to secondary pH adjustment tank (31);
One catalyst recovery devices (4), it is connected between described electrocatalysis contact break device (22) and secondary pH adjustment tank (31);
Described secondary pH setting device (3) is also provided with the intermediate water tank (5), membrane filter appts (6), the deep purifying column device (7) that are linked in sequence below;
Coagulation tank and settling bath is provided with between described secondary pH setting device (3) and intermediate water tank (5), described the first injection device (12) comprising: acid solution injection device (121), alkaline liquid injection device (122) and oxygenant injection device (13), it includes: bearing box, the pipeline connecting bearing box and described one-level pH adjustment tank (11) and the pump be installed on pipeline, and the membrane filter appts (6) described in being connected with one-level pH adjustment tank (11) by pipeline being comprised: suction pump, dope backflash, film pipe and back-purge system, wherein, described film pipe is microfiltration membrane, ultra-filtration membrane, in nanofiltration membrane or osmosis filtration film any one or more series combination, described catalyst recovery devices (4) comprises the accumulator tank (41) be connected between electrocatalysis contact break device (22) and secondary pH adjustment tank (31), this accumulator tank (41) bottom in funnel-form, and is provided with recovery channel (42).
2. a kind of heavy metal-containing wastewater treatment equipment according to claim 1, is characterized in that: described catalyzer contact break device (21) comprising: one first contact break groove (211), be installed on the stirrer (20) in the first contact break groove (211) and can to the catalyst injection device (212) of the first contact break groove (211) injecting catalyst.
3. a kind of heavy metal-containing wastewater treatment equipment according to claim 1, is characterized in that: described electrocatalysis contact break device (22) comprising: one second contact break groove (221), the power supply (223) being installed on the electrode slice (222) in the second contact break groove (221) and electrically conducting with electrode slice (222).
4. a kind of heavy metal-containing wastewater treatment equipment according to claim 1, it is characterized in that: described the second injection device (32) comprising: an acid solution injection device (321) and alkaline liquid injection device (322), it is connected with secondary pH adjustment tank (31) respectively by pipeline.
5. a kind of heavy metal-containing wastewater treatment equipment according to claim 1, it is characterized in that: described intermediate water tank (5) outside is also provided with reflux line (51), and this reflux line (51) two ends connect bottom and the top of intermediate water tank (5) respectively.
6. a kind of heavy metal-containing wastewater treatment equipment according to claim 1, it is characterized in that: described deep purifying column device (7) comprises at least two deep purifying Filter columns (71), be filled with the medium layer of adsorbable heavy metal in this deep purifying Filter column (71), this medium layer comprises the one or any combination in active carbon layer, resinbed, active zeolite layer, insoluble starch xantate layer; Described deep purifying Filter column (71) is series combination and/or parallel combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064979.8A CN105481150B (en) | 2016-01-29 | 2016-01-29 | A kind of heavy metal-containing wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064979.8A CN105481150B (en) | 2016-01-29 | 2016-01-29 | A kind of heavy metal-containing wastewater treatment equipment |
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| CN105481150A true CN105481150A (en) | 2016-04-13 |
| CN105481150B CN105481150B (en) | 2017-12-15 |
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| CN201610064979.8A Expired - Fee Related CN105481150B (en) | 2016-01-29 | 2016-01-29 | A kind of heavy metal-containing wastewater treatment equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109384348A (en) * | 2017-08-14 | 2019-02-26 | 上海同昕环境科技有限公司 | A kind of waste water treatment system and method containing heavy metal |
| CN109437446A (en) * | 2018-10-19 | 2019-03-08 | 浙江海拓环境技术有限公司 | A kind of zinc nickel alloy electroplating waste water treatment process |
| CN109970160A (en) * | 2019-04-08 | 2019-07-05 | 浙江大学 | For handling the granule electrode electrocatalysis oxidation apparatus and its method of landfill leachate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101830600A (en) * | 2010-03-23 | 2010-09-15 | 天津大学 | Method for treating comprehensive electroplating wastewater |
| CN102674634A (en) * | 2012-05-22 | 2012-09-19 | 武汉华麟科技有限公司 | Treatment process of wastewater in coal chemical industry |
| CN104129830A (en) * | 2013-05-03 | 2014-11-05 | 中国科学院生态环境研究中心 | Photoelectrocatalytic method for treating heavy metal complex waste water and recovering heavy metal therefrom |
| CN104163473A (en) * | 2014-07-29 | 2014-11-26 | 广东威迪科技股份有限公司 | Novel electrochemical treatment device for wastewater treatment and wastewater treatment method |
-
2016
- 2016-01-29 CN CN201610064979.8A patent/CN105481150B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830600A (en) * | 2010-03-23 | 2010-09-15 | 天津大学 | Method for treating comprehensive electroplating wastewater |
| CN102674634A (en) * | 2012-05-22 | 2012-09-19 | 武汉华麟科技有限公司 | Treatment process of wastewater in coal chemical industry |
| CN104129830A (en) * | 2013-05-03 | 2014-11-05 | 中国科学院生态环境研究中心 | Photoelectrocatalytic method for treating heavy metal complex waste water and recovering heavy metal therefrom |
| CN104163473A (en) * | 2014-07-29 | 2014-11-26 | 广东威迪科技股份有限公司 | Novel electrochemical treatment device for wastewater treatment and wastewater treatment method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109384348A (en) * | 2017-08-14 | 2019-02-26 | 上海同昕环境科技有限公司 | A kind of waste water treatment system and method containing heavy metal |
| CN109437446A (en) * | 2018-10-19 | 2019-03-08 | 浙江海拓环境技术有限公司 | A kind of zinc nickel alloy electroplating waste water treatment process |
| CN109970160A (en) * | 2019-04-08 | 2019-07-05 | 浙江大学 | For handling the granule electrode electrocatalysis oxidation apparatus and its method of landfill leachate |
| CN109970160B (en) * | 2019-04-08 | 2023-07-28 | 浙江大学 | Particle electrode electrocatalytic oxidation device and method for treating landfill leachate |
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| CN105481150B (en) | 2017-12-15 |
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Effective date of registration: 20181105 Address after: 400000 3, 6-2, Chui Hui Road, Chunhui Road, Dadukou District, Chongqing, 3 Patentee after: Chongqing Honghua Li Jie environmental protection technology Co.,Ltd. Address before: 523000 one of 36 yuan Hing Lane, Dongcheng District, Dongguan, Guangdong. Patentee before: Zhong Zhichao |
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