CN105858756A - Sewage treatment agent special for electroplating and preparation method thereof - Google Patents
Sewage treatment agent special for electroplating and preparation method thereof Download PDFInfo
- Publication number
- CN105858756A CN105858756A CN201610397508.9A CN201610397508A CN105858756A CN 105858756 A CN105858756 A CN 105858756A CN 201610397508 A CN201610397508 A CN 201610397508A CN 105858756 A CN105858756 A CN 105858756A
- Authority
- CN
- China
- Prior art keywords
- sewage
- treating agent
- preparation
- special
- infusorial earth
- 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.)
- Pending
Links
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
-
- 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)
- Chemically Coating (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
The invention discloses a sewage treatment agent special for electroplating and a preparation method thereof. The sewage treatment agent special for electroplating is prepared from, by weight, 60-80 parts of modified kieselguhr, 10-20 parts of potato starch, 20-30 parts of bamboo charcoal, 5-8 parts of chitosan and 5-8 parts of sodium acetate. The physical and chemical indexes of the sewage treatment agent special for electroplating can reach GB18918-2002 standards, and the content of COD, BOD, SS and metal ions is effectively reduced. The treatment process is simple, the agent dosage is small, the treatment effect is good, performance is stable, the effluent quality is good, the water treatment cost can be effectively reduced, and good economic benefits and wide social benefits are achieved.
Description
Technical field
The present invention relates to a kind of sewage-treating agent technical field, a kind of plating processes special sewage-treating agent and system thereof
Preparation Method.
Background technology
Electroplating wastewater processing is that a kind of being difficult to thoroughly is administered and the process of increasingly complex mixture-metal waste water, and electroplating sewerage processes
Process conditions, production load, operational administrative and the water use model that must produce with plating according to the water quality of electroplating wastewater, the water yield
Etc. factor.The water quality of electroplated heavy metals sewage disposal is complicated, and composition is wayward, wherein contain cyanide, acid, alkali, six
Valency chromium, copper, zinc, cadmium, nickel, gold, silver etc. heavy metal contaminants, toxicity is relatively big, and some belongs to carcinogenic, teratogenesis, cause
The extremely toxic substance of sudden change, very harmful to the mankind.
At present, processing the plating special sewage-treating agent pollution problem of processing has the various methods such as physics, chemistry, biology, but
It is the best to be that physical method exists treatment effect more, handling rate instability problem;Biological method processing cost is too high, is not suitable for pushing away
Wide use;More employing chemical methodes process sewage, but existing sewage-treating agent, and it is dirty to there is secondary in its agent formulations
Dye problem, also can have a certain impact to environment.
Summary of the invention
It is an object of the invention to provide a kind of plating and process special sewage-treating agent and preparation method thereof, to solve the above-mentioned back of the body
The problem proposed in scape technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of plating processes special sewage-treating agent, according to the component of weight portion is: modification infusorial earth 60-80 part, Ma Ling
Sweet potato starch 10-20 part, bamboo charcoal 20-30 part, shitosan 5-8 part, sodium acetate 5-8 part, the preparation of described modification infusorial earth
Method is:
(1) diatomite original soil is added in rotary kiln, under 547 DEG C of temperature conditionss, fire 30-60min, pulverize after kiln discharge
Become 40-60 mesh diatomite fine powder;
(2) the diatomite fine powder taking step (1) gained carries out vacuum drying treatment 12h, be subsequently placed at sodium thiosulfate and
Polyvinylpyrrolidone soaks 65-75min so that diatomite fine powder is fully soaked, and carries out low temperature drying after filtration;
(3) take the diatomite fine powder after step (2) gained low temperature drying and join in polymeric kettle, add poly-second the most successively
Enol, isoamyl alcohol, ethylenediamine and isoleucine, react under nitrogen protection, and reaction temperature is 38-42 DEG C, during reaction
Between be 57-70min, obtain modification infusorial earth.
As the further scheme of the present invention: in the preparation method step (1) of described modification infusorial earth, under the conditions of 547 DEG C
Fire 45min, after kiln discharge, be ground into 50 mesh diatomite fine powders.
As the further scheme of the present invention: in the preparation method step (2) of described modification infusorial earth, be placed in thiosulfuric acid
Sodium and polyvinylpyrrolidone soak 70min.
As the further scheme of the present invention: in the preparation method step (3) of described modification infusorial earth, reaction temperature is 40 DEG C,
Reaction time is 64min.
A kind of preparation method electroplating the special sewage-treating agent of processing, concretely comprises the following steps:
(1) first, adding water and obtain mixture slurry in modification infusorial earth, carry out ultrasonic wave process subsequently, ultrasonic wave processes
Temperature be 160-170 DEG C, the time is 30-40min, obtains mixture;
(2) then, mixture and farina, bamboo charcoal, shitosan, sodium acetate are carried out ice bath mixing stirring, stirs
Mixing rotating speed is 300-600r/min, carries out low temperature drying at a temperature of microencapsulation process is placed in 2 DEG C-6 DEG C subsequently, obtains electricity
The sewage-treating agent that plating processing is special.
As the further scheme of the present invention: the temperature that in step (1), ultrasonic wave processes is 165 DEG C, and the time is 35min.
As the further scheme of the present invention: in step (2), speed of agitator is 450r/min.Compared with prior art, originally
The beneficial effect of the invention is:
The present invention enables to the physical and chemical index of the special sewage-treating agent of plating processing and reaches GB18918-2002 standard, and
Effectively reduce COD, BOD, SS and metal ion content;Process technique is simple, and dosage is few, and treatment effect is good,
Stable performance, effluent quality is good, can significantly reduce the cost that water processes, and has good economic benefit and society widely
Can benefit.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, aobvious
So, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of plating processes special sewage-treating agent, according to the component of weight portion is: modification infusorial earth 60 parts, potato
Starch 10 parts, bamboo charcoal 20 parts, shitosan 5 parts, sodium acetate 5 parts, the preparation method of described modification infusorial earth is:
(1) diatomite original soil is added in rotary kiln, under 547 DEG C of temperature conditionss, fire 30min, after kiln discharge, be ground into 40
Mesh diatomite fine powder;
(2) the diatomite fine powder taking step (1) gained carries out vacuum drying treatment 12h, be subsequently placed at sodium thiosulfate and
Polyvinylpyrrolidone soaks 65min so that diatomite fine powder is fully soaked, and carries out low temperature drying after filtration;
(3) take the diatomite fine powder after step (2) gained low temperature drying and join in polymeric kettle, add poly-second the most successively
Enol, isoamyl alcohol, ethylenediamine and isoleucine, react under nitrogen protection, and reaction temperature is 38 DEG C, and the reaction time is
57min, obtains modification infusorial earth.
A kind of preparation method electroplating the special sewage-treating agent of processing, concretely comprises the following steps:
(1) first, adding water and obtain mixture slurry in modification infusorial earth, carry out ultrasonic wave process subsequently, ultrasonic wave processes
Temperature be 160 DEG C, the time is 30min, obtains mixture;
(2) then, mixture and farina, bamboo charcoal, shitosan, sodium acetate are carried out ice bath mixing stirring, stirs
Mixing rotating speed is 300r/min, carries out low temperature drying at a temperature of microencapsulation process is placed in 2 DEG C subsequently, obtains plating and add working platform
Sewage-treating agent.
Embodiment 2
A kind of plating processes special sewage-treating agent, according to the component of weight portion is: modification infusorial earth 70 parts, potato
Starch 15 parts, bamboo charcoal 25 parts, shitosan 8 parts, sodium acetate 8 parts, the preparation method of described modification infusorial earth is:
(1) diatomite original soil is added in rotary kiln, under 547 DEG C of temperature conditionss, fire 45min, after kiln discharge, be ground into 50
Mesh diatomite fine powder;
(2) the diatomite fine powder taking step (1) gained carries out vacuum drying treatment 12h, be subsequently placed at sodium thiosulfate and
Polyvinylpyrrolidone soaks 70min so that diatomite fine powder is fully soaked, and carries out low temperature drying after filtration;
(3) take the diatomite fine powder after step (2) gained low temperature drying and join in polymeric kettle, add poly-second the most successively
Enol, isoamyl alcohol, ethylenediamine and isoleucine, react under nitrogen protection, and reaction temperature is 40 DEG C, and the reaction time is
64min, obtains modification infusorial earth.
A kind of preparation method electroplating the special sewage-treating agent of processing, concretely comprises the following steps:
(1) first, adding water and obtain mixture slurry in modification infusorial earth, carry out ultrasonic wave process subsequently, ultrasonic wave processes
Temperature be 165 DEG C, the time is 35min, obtains mixture;
(2) then, mixture and farina, bamboo charcoal, shitosan, sodium acetate are carried out ice bath mixing stirring, stirs
Mixing rotating speed is 450r/min, carries out low temperature drying at a temperature of microencapsulation process is placed in 2 DEG C-6 DEG C subsequently, obtains plating and add
The sewage-treating agent of working platform.
Embodiment 3
A kind of plating processes special sewage-treating agent, according to the component of weight portion is: modification infusorial earth 80 parts, potato
Starch 20 parts, bamboo charcoal 30 parts, shitosan 8 parts, sodium acetate 8 parts, the preparation method of described modification infusorial earth is:
(1) diatomite original soil is added in rotary kiln, under 547 DEG C of temperature conditionss, fire 60min, after kiln discharge, be ground into 60
Mesh diatomite fine powder;
(2) the diatomite fine powder taking step (1) gained carries out vacuum drying treatment 12h, be subsequently placed at sodium thiosulfate and
Polyvinylpyrrolidone soaks 75min so that diatomite fine powder is fully soaked, and carries out low temperature drying after filtration;
(3) take the diatomite fine powder after step (2) gained low temperature drying and join in polymeric kettle, add poly-second the most successively
Enol, isoamyl alcohol, ethylenediamine and isoleucine, react under nitrogen protection, and reaction temperature is 42 DEG C, and the reaction time is
70min, obtains modification infusorial earth.
A kind of preparation method electroplating the special sewage-treating agent of processing, concretely comprises the following steps:
(1) first, adding water and obtain mixture slurry in modification infusorial earth, carry out ultrasonic wave process subsequently, ultrasonic wave processes
Temperature be 170 DEG C, the time is 40min, obtains mixture;
(2) then, mixture and farina, bamboo charcoal, shitosan, sodium acetate are carried out ice bath mixing stirring, stirs
Mixing rotating speed is 600r/min, carries out low temperature drying at a temperature of microencapsulation process is placed in 2 DEG C-6 DEG C subsequently, obtains plating and add
The sewage-treating agent of working platform.
Comparative example 1
A kind of plating processes special sewage-treating agent, according to the component of weight portion is: 70 parts of diatomite, farina
15 parts.
A kind of preparation method electroplating the special sewage-treating agent of processing, concretely comprises the following steps:
(1) first, add water in diatomite and obtain mixture slurry, carry out ultrasonic wave process subsequently, the temperature that ultrasonic wave processes
Degree is 165 DEG C, and the time is 35min, obtains mixture;
(2) then, mixture and farina carrying out ice bath mixing stirring, speed of agitator is 450r/min, subsequently
Carry out low temperature drying at a temperature of microencapsulation process is placed in 2 DEG C-6 DEG C, obtain the sewage-treating agent that plating processing is special.
Comparative example 2
A kind of plating processes special sewage-treating agent, according to the component of weight portion is: 70 parts of diatomite, bamboo charcoal 25 parts.
A kind of preparation method electroplating the special sewage-treating agent of processing, concretely comprises the following steps:
Add water in diatomite and bamboo charcoal and obtain mixture slurry, low temperature drying at a temperature of being subsequently placed at 2 DEG C-6 DEG C, electroplated
Process special sewage-treating agent.
Comparative example 3
A kind of plating processes special sewage-treating agent, according to the component of weight portion is: modification infusorial earth 70 parts, potato
Starch 15 parts, bamboo charcoal 25 parts, shitosan 8 parts, sodium acetate 8 parts, the preparation method of described modification infusorial earth is:
(1) diatomite original soil is added in rotary kiln, under 547 DEG C of temperature conditionss, fire 45min, after kiln discharge, be ground into 50
Mesh diatomite fine powder;
(2) take the diatomite fine powder after step (1) gained low temperature drying and join in polymeric kettle, add poly-second the most successively
Enol, isoamyl alcohol, ethylenediamine and isoleucine, react under nitrogen protection, and reaction temperature is 40 DEG C, and the reaction time is
64min, obtains modification infusorial earth.
A kind of preparation method electroplating the special sewage-treating agent of processing, concretely comprises the following steps:
Add water in modification infusorial earth and obtain mixture slurry, carry out with farina, bamboo charcoal, shitosan, sodium acetate subsequently
Ice bath mixing stirring, speed of agitator is 450r/min, carries out low temperature at a temperature of microencapsulation process is placed in 2 DEG C-6 DEG C subsequently
Dry, obtain the sewage-treating agent that plating processing is special.
Test experience
Weigh embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5 and comparative sample 1, control sample respectively
Product 2, each 1kg of comparative sample 3 join the plating of 20kg and process in special sewage-treating agent, and temperature control is at 25 DEG C, no
Disconnected stirring 1h, tests the plating processing of the present invention respectively using COD, BOD, SS, metal ion content as evaluation criterion
The effect of special sewage-treating agent, test result chart 1.
Table 1
As can be seen here, special sewage-treating agent is processed in the plating of the present invention, has and preferably significantly process effect compared with control group
Really, the present invention enable to the physical and chemical index of the plating special sewage-treating agent of processing reach GB18918-2002 standard (can
To reach more than one-level B standard), and effectively reduce COD, BOD, SS and metal ion content;Process technique is simple,
Dosage is few, and treatment effect is good, stable performance, and effluent quality is good, can significantly reduce the cost that water processes, have
Well economic benefit and widely social benefit.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and do not carrying on the back
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter from
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only comprises
One independent technical scheme, this narrating mode of specification is only the most for clarity sake, and those skilled in the art should be by
Specification is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can
With other embodiments understood.
Claims (7)
1. electroplate the sewage-treating agent that processing is special for one kind, according to the component of weight portion it is: modification infusorial earth 60-80 part, farina 10-20 part, bamboo charcoal 20-30 part, shitosan 5-8 part, sodium acetate 5-8 part, it is characterized in that, the preparation method of described modification infusorial earth is:
(1) diatomite original soil is added in rotary kiln, under 547 DEG C of temperature conditionss, fire 30-60min, after kiln discharge, be ground into 40-60 mesh diatomite fine powder;
(2) the diatomite fine powder taking step (1) gained carries out vacuum drying treatment 12h, is subsequently placed in sodium thiosulfate and polyvinylpyrrolidone immersion 65-75min so that diatomite fine powder is fully soaked, and carries out low temperature drying after filtration;
(3) take the diatomite fine powder after step (2) gained low temperature drying and join in polymeric kettle; adding polyvinyl alcohol, isoamyl alcohol, ethylenediamine and isoleucine the most successively, react under nitrogen protection, reaction temperature is 38-42 DEG C; reaction time is 57-70min, obtains modification infusorial earth.
The sewage-treating agent that plating processing the most according to claim 1 is special, it is characterised in that in the preparation method step (1) of described modification infusorial earth, fire 45min under the conditions of 547 DEG C, be ground into 50 mesh diatomite fine powders after kiln discharge.
The sewage-treating agent that plating processing the most according to claim 1 is special, it is characterised in that in the preparation method step (2) of described modification infusorial earth, is placed in sodium thiosulfate and polyvinylpyrrolidone immersion 70min.
The sewage-treating agent that plating processing the most according to claim 1 is special, it is characterised in that in the preparation method step (3) of described modification infusorial earth, reaction temperature is 40 DEG C, and the reaction time is 64min.
5. the preparation method electroplating the special sewage-treating agent of processing as described in claim 1-4 is arbitrary, it is characterised in that concretely comprise the following steps:
(1) first, adding water and obtain mixture slurry in modification infusorial earth, carry out ultrasonic wave process subsequently, the temperature that ultrasonic wave processes is 160-170 DEG C, and the time is 30-40min, obtains mixture;
(2) then, mixture and farina, bamboo charcoal, shitosan, sodium acetate are carried out ice bath mixing stirring, speed of agitator is 300-600r/min, carries out low temperature drying at a temperature of microencapsulation process is placed in 2 DEG C-6 DEG C subsequently, obtains the sewage-treating agent that plating processing is special.
The preparation method of the sewage-treating agent that plating processing the most according to claim 5 is special, it is characterised in that the temperature that in step (1), ultrasonic wave processes is 165 DEG C, and the time is 35min.
The preparation method of the sewage-treating agent that plating processing the most according to claim 5 is special, it is characterised in that in step (2), speed of agitator is 450r/min.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610397508.9A CN105858756A (en) | 2016-05-31 | 2016-05-31 | Sewage treatment agent special for electroplating and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610397508.9A CN105858756A (en) | 2016-05-31 | 2016-05-31 | Sewage treatment agent special for electroplating and preparation method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN105858756A true CN105858756A (en) | 2016-08-17 |
Family
ID=56677035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610397508.9A Pending CN105858756A (en) | 2016-05-31 | 2016-05-31 | Sewage treatment agent special for electroplating and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105858756A (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1669944A (en) * | 2005-02-25 | 2005-09-21 | 史梅约 | Water quality purifying agent |
CN101648735A (en) * | 2009-09-10 | 2010-02-17 | 南京师范大学 | Environmental functional material applied to electroplating wastewater treatment |
CN102641720A (en) * | 2012-04-01 | 2012-08-22 | 华南师范大学 | Preparation method for modified kieselguhr composite adsorbing material |
CN104229957A (en) * | 2013-06-24 | 2014-12-24 | 张家领 | Compound flocculant taking natural minerals as main components |
CN105000651A (en) * | 2015-08-25 | 2015-10-28 | 宁波保税区维迪克环保科技有限公司 | Electroplating wastewater treatment agent |
CN105289533A (en) * | 2015-10-23 | 2016-02-03 | 苏州书瑞环保科技有限公司 | Environment-friendly adsorbing material for treating mercury-lead-containing wastewater and preparation method thereof |
CN105540789A (en) * | 2015-12-31 | 2016-05-04 | 佛山铭乾科技有限公司 | High-efficiency flocculating agent |
-
2016
- 2016-05-31 CN CN201610397508.9A patent/CN105858756A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1669944A (en) * | 2005-02-25 | 2005-09-21 | 史梅约 | Water quality purifying agent |
CN101648735A (en) * | 2009-09-10 | 2010-02-17 | 南京师范大学 | Environmental functional material applied to electroplating wastewater treatment |
CN102641720A (en) * | 2012-04-01 | 2012-08-22 | 华南师范大学 | Preparation method for modified kieselguhr composite adsorbing material |
CN104229957A (en) * | 2013-06-24 | 2014-12-24 | 张家领 | Compound flocculant taking natural minerals as main components |
CN105000651A (en) * | 2015-08-25 | 2015-10-28 | 宁波保税区维迪克环保科技有限公司 | Electroplating wastewater treatment agent |
CN105289533A (en) * | 2015-10-23 | 2016-02-03 | 苏州书瑞环保科技有限公司 | Environment-friendly adsorbing material for treating mercury-lead-containing wastewater and preparation method thereof |
CN105540789A (en) * | 2015-12-31 | 2016-05-04 | 佛山铭乾科技有限公司 | High-efficiency flocculating agent |
Non-Patent Citations (1)
Title |
---|
梁治齐: "《微胶囊技术及其应用》", 30 April 1999, 中国轻工业出版社 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110559991B (en) | Modified biochar and preparation method and application thereof | |
CN105289485A (en) | Method for preparing modified biochar through ferrate oxidation under alkaline condition | |
CN106964321B (en) | A kind of preparation method and applications of banana fiber chitosan composite hydrogel | |
CN109464992B (en) | Adsorbent composition for adsorbing heavy metal cadmium in wastewater | |
CN113976050A (en) | Preparation method of magnetic cellulose-graphene oxide high-adsorbability aerogel | |
CN102502628A (en) | Preparation method of granular activated carbon by chemical activation | |
CN106861685B (en) | A kind of Ag/Ag2O/TiO2The preparation method of/diatomite composite photocatalytic material | |
CN105858749A (en) | Wastewater treating agent special for livestock breeding and preparing method of wastewater treating agent | |
CN108311118A (en) | A kind of preparation method of modified synthesis zeolite heavy metal ion adsorbing material | |
CN105836821B (en) | A kind of dedicated sewage-treating agent of chemical fibre industry and preparation method thereof | |
CN105858750B (en) | Dedicated sewage-treating agent of a kind of coal mine processing and preparation method thereof | |
CN104211225A (en) | Multiple complex treatment method for heavy metal sewage | |
CN105858756A (en) | Sewage treatment agent special for electroplating and preparation method thereof | |
CN103723852B (en) | Sewage treatment method based on inorganic and organic heavy metal absorbents | |
CN106006775B (en) | A kind of dedicated sewage-treating agent of rubber processing and preparation method thereof | |
CN108176351A (en) | A kind of sewage disposal vermiculite based material and its preparation method and application | |
CN106238021A (en) | A kind of adsorbent for sewage disposal and preparation method thereof | |
CN105858755B (en) | A kind of dedicated sewage-treating agent of glass processing and preparation method thereof | |
CN105126789A (en) | Sulfenyl polyvinylidene fluoride membrane absorbent, preparation method and method for recovering gold in wastewater | |
CN106006774A (en) | Soybean processing dedicated sewage treatment agent and preparation method thereof | |
CN104874369B (en) | Modified polyvinyl alcohol microparticles of a kind of coloring functionization and preparation method and application | |
CN105858754A (en) | Sewage treatment agent special for heavy metal processing and preparing method thereof | |
CN105776487A (en) | Environment-friendly efficient compound heavy metal capture agent and preparing method thereof | |
CN105858748A (en) | Wastewater treating agent special for waste lithium battery electrolyte and preparation method of wastewater treating agent | |
CN106006996A (en) | Pharmaceutical wastewater treatment agent and preparation method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160817 |