CN106669591B - It is a kind of for adsorbing the processing method of xanthate in waste water - Google Patents
It is a kind of for adsorbing the processing method of xanthate in waste water Download PDFInfo
- Publication number
- CN106669591B CN106669591B CN201710045729.4A CN201710045729A CN106669591B CN 106669591 B CN106669591 B CN 106669591B CN 201710045729 A CN201710045729 A CN 201710045729A CN 106669591 B CN106669591 B CN 106669591B
- Authority
- CN
- China
- Prior art keywords
- xanthate
- waste water
- mesoporous silicon
- adsorbing
- silicon oxide
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
- B01J20/28019—Spherical, ellipsoidal or cylindrical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28078—Pore diameter
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
Abstract
The invention discloses a kind of for adsorbing the processing method of xanthate in waste water, including spherical mesoporous silicon oxide, the mesoporous silicon oxide of 0.005g-0.05g is added in the 50 mL waste water of the 10 mg/L-60 mg/L containing xanthate, after adjusting pH to 3-6 with dilute hydrochloric acid, filtered after room temperature magnetic agitation 10min-90 min.The present invention has high-specific surface area, macropore appearance, the characteristic of orderly skeleton structure using spherical mesoporous silicon oxide, and adjust pH be 3-6 when, it is obvious for the adsorption effect of xanthate in waste water, xanthate removal efficiency in waste water solution can be reached 97.56%, adsorbance reaches 195.12 mg/g, adsorption time is 15min, is 60min or so compared to existing adsorption time, adsorption efficiency greatly improves.
Description
Technical field
The invention belongs to technical field of waste water processing, especially for adsorbing the processing method of xanthate in waste water.
Background technique
Xanthate is collecting agent most widely used in sulfide flotation, also commonly uses it in rubber industry and makees vulcanization accelerator,
It can be used for analytical chemistry and metallurgical industry, widely used, but the irritant stink of xanthate, moderate toxicity, Chang Yin in industrial wastewater
Environment is polluted containing xanthate, xanthate in waste water need to be handled, be reached discharge standard, to preserve the ecological environment.It is useless
The removal of xanthate mainly has biological degradation method, chemical precipitation method, oxidizing process, ion-exchange, absorption method, acidization etc. in water,
Chemical precipitation, oxidizing process and acidization processing cost are excessive, uneconomical, and easily cause secondary pollution, and subsequent processing steps are complicated.
Biological degradation method processing technique advantage is more, but at present China to the research of bioanalysis still in the laboratory exploratory stage, do not answer
For in industrial production, and the growth of biological bacteria cannot accurately control, and easily cause new environmental problem.Ion-exchange treating capacity
It is small, and cycle period is long and at high cost, is not suitable for a large amount of waste water of continuous processing.Carrying out absorption using adsorbent has
The features such as effect, environmental protection, therefore, in field of waste water treatment, efficient adsorbent is by favor.
Mainly there are nano material, active carbon, montmorillonite and its modified material etc. to the absorption of xanthate at present.Chinese patent Shen
Trivalent iron salt is please added in (publication No. CN105018744B) into zinc hydrometallurgy raffinate makes Fe3+Concentration is greater than 1g/L, so
2 ~ 4h is reacted under the conditions of control temperature of reaction kettle is 160 DEG C ~ 220 DEG C afterwards, partial pressure of oxygen is 0.15MPa ~ 0.8MPa, can be obtained de-
Except the zinc hydrometallurgy raffinate of the beneficiation reagents such as ethyl xanthate, fatty acid and hydroxamic acid, which can remove a variety of organic in solution
Object, but this method needs temperature-pressure.Document " experimental study that ADS-5 type macroporous absorbent resin removes xanthate in water removal " (Zhang Mingxing,
Li Huachang, Yu Li, Tang Shufang mining and metallurgy, 2010, (01): 91-93+97) point out that DS-5 type macroporous absorbent resin can be effective in
Xanthate in water removal is removed, but resin preprocessing process is complicated, and adsorption time is also longer, 5h or so is needed to can be only achieved saturation absorption.
It directlys adopt montmorillonite and suction-operated very little is carried out to xanthate, it can be to yellow in montmorillonite progress pillared modification again adsorbent solution
Medicine can also reach higher removal rate, but the reaction time is generally also in 60min or so.Document " continuous online original position ATR-FTIR skill
Art measures mesoporous CuAl2O4Absorption to xanthate " (east is come, Fan Yingju, Yin Long, Sun Zhongxi Acta PhySico-Chimica Sinica, and 2013, (02):
Meso-porous nano CuAl is prepared in 371-376)2O4To butyl in adsorbent solution and octyl xanthate, meso-porous nano CuAl2O4It is right
Xanthate has very strong adsorption capacity, within the time of 100 min, CuAl2O4Sample distinguishes the adsorbance of butyl and octyl xanthate
236 and 300 mgg are reached-1.Document " two dimension continuous online original position ATR-FTIR light of the butyl xanthate in CuO adsorption
Made from being used in spectrum research " (Shen Qi, Fan Yingju, Yin Long, Sun Zhongxi Acta PhySico-Chimica Sinica, 2014, (02): 359-364)
Nanometer CuO adsorbs butyl xanthate, and maximal absorptive capacity can reach 529 mgg-1, but adsorption time is longer, about 500min
Left and right reaches saturation absorption.Method relatively good at present is document " active carbon studies the characterization of adsorption of xanthate in flotation waste water "
Using active carbon in alkalescent (pH 7-8) ring in (Cheng Wei, Tan, the strong mineral journal of Marvin's, 2010, (02): 262-267)
It is carried out under border, when activated carbon dosage is 0.3g/L, and adsorption time is 60min, xanthate removal rate is inhaled up to 95.82% in solution
Attached amount is 696.91mg/g.It can be seen that these above-mentioned adsorbents can reach preferable effect under suitable conditions, but inhale
The attached time is long, is intended to 60min or more, therefore explores that a kind of rate of adsorption is fast, mild condition, the stable adsorbent material of property
There is definite meaning for the removal of xanthate in waste water.
Summary of the invention
The technical problem to be solved by the present invention is provide it is a kind of for adsorbing the processing method of xanthate in waste water, using ball
Shape mesoporous silicon oxide can greatly improve the rate of adsorption, and adsorption time greatly shortens, and can reach 15min, and without being modified
Processing, adsorption effect is good, and performance is stablized, to solve problems of the prior art.
The technical scheme adopted by the invention is as follows: it is a kind of for adsorbing the processing method of xanthate in waste water, including spherical Jie
The 50 mL waste water of the 10 mg/L-60 mg/L containing xanthate are added in the mesoporous silicon oxide of 0.005g-0.05g by hole silica
In, after adjusting pH to 3-6 with dilute hydrochloric acid, filtered after 10 min-90 min of room temperature magnetic agitation.
Above-mentioned spherical mesoporous silicon oxide is homemade spherical MCM-41.
Above-mentioned spherical mesoporous silicon oxide also can be replaced using Template synthesis SBA-15 or acid system synthesis
SBA-15。
Above-mentioned spherical mesoporous silicon oxide also can be replaced rodlike, the helical form for changing surfactant chain length and synthesizing
Or the mesoporous silicon oxide of ink ampuliform.
The component ratio of above-mentioned spherical mesoporous silicon oxide are as follows: 2 mmol-3 mmol cetyl trimethylammonium bromides,
3 ml-5 ml of 400 ml-500 ml deionized waters, the 2 mol/L NaOH of 3.0 ml-4.0 ml and ethyl orthosilicate TEOS,
Preparation method is as follows: 2 mmol -3 mmol cetyl trimethylammonium bromides, which take, is dissolved in 400 ml-500 ml deionized waters
In, the 2 mol/L NaOH solutions of 3.0 ml-4.0 ml are added, is heated to 80 DEG C -100 DEG C, is then added dropwise with vigorous stirring
3 ml-5 ml of ethyl orthosilicate TEOS reacts 2 h -3h, solution after reaction is filtered, and is washed with methanol and deionized water,
3 h-5 h are calcined after drying at 600 DEG C -800 DEG C, remove meso-porous titanium dioxide silicon surface active agent.
Beneficial effects of the present invention: compared with prior art, the present invention has high ratio using spherical mesoporous silicon oxide
Surface area, macropore hold, the characteristic of orderly skeleton structure, and when to adjust pH be 3-6, bright for the adsorption effect of xanthate in waste water
It is aobvious, xanthate removal efficiency in waste water solution can be reached 97.56% using mesoporous silicon oxide 0.005g, adsorbance reaches 195.12
Mg/g, and adsorption time is 15min, is 60 min or so compared to existing adsorption time, adsorption time greatly shortens, absorption effect
Rate greatly improves, and is not necessarily to modification, and adsorption effect is good, and performance is stablized.
Detailed description of the invention
Xanthate removal rate changes with time in Fig. 1 solution, and (xanthate content is 20 mg/L, pH5, MCM- to relationship in solution
41 0.005g).
Specific embodiment
The preparation of spherical mesoporous silicon oxide: it takes 2.74 mmol cetyl trimethylammonium bromides to take and is dissolved in 480 ml
In deionized water, the 2 mol/L NaOH solutions of 3.5 ml are added, is heated to 80 DEG C, positive silicon is then added dropwise with vigorous stirring
5 ml of acetoacetic ester TEOS reacts 2 h, solution after reaction is filtered, and is washed with methanol and deionized water, in 600 after drying
3 h are calcined at DEG C, remove meso-porous titanium dioxide silicon surface active agent, and the orderly duct sphericity mesoporous silicon dioxide MCM- of six sides is made
41, BET specific surfaces reach 597.4 m2/ g, aperture are 2.64 nm, and pore volume is 0.64 cm31.93 nm of/g, Kong Bihou.
Embodiment 1: by the sphericity mesoporous silicon dioxide (MCM-41) of above-mentioned preparation take 0.05g in equipped with 50 mL containing xanthate
In the waste water of 30 mg/L, after adjusting pH to 5 with dilute hydrochloric acid, then 60 min of room temperature magnetic agitation is filtered, using ultraviolet spectrometry light
Degree meter measures remaining xanthate concentration in solution under 301 nm wavelength, and xanthate removal efficiency is 94.32% in solution, and adsorbance is
28.30 mg/g。
Embodiment 2: by the sphericity mesoporous silicon dioxide (MCM-41) of above-mentioned preparation take 0.05g in equipped with 50 mL containing xanthate
In the waste water of 30 mg/L, when natural pH(is added without dilute hydrochloric acid and adjusts) under, 60 min of room temperature magnetic agitation and then mistake
Filter, measures remaining xanthate concentration in solution using ultraviolet specrophotometer, xanthate removal efficiency is in solution under 301 nm wavelength
48.28%, adsorbance 14.84mg/g.
Embodiment 3: by the sphericity mesoporous silicon dioxide (MCM-41) of above-mentioned preparation take 0.05g in equipped with 50 mL containing xanthate
In the waste water of 30 mg/L, after adjusting pH to 9 with sodium hydroxide solution, then 60 min of room temperature magnetic agitation is filtered, and use is ultraviolet
Spectrophotometer measures remaining xanthate concentration in solution under 301 nm wavelength, and xanthate removal efficiency is 0.45% in solution, adsorbance
For 0.14mg/g.
Embodiment 4: by the sphericity mesoporous silicon dioxide (MCM-41) of above-mentioned preparation take 0.05g in equipped with 50 mL containing xanthate
In the waste water of 20 mg/L, after adjusting pH to 5 with dilute hydrochloric acid, then room temperature magnetic agitation 60min is filtered, using ultraviolet spectrometry light
Degree meter measures remaining xanthate concentration in solution under 301 nm wavelength, and xanthate removal efficiency is 97.34% in solution, and adsorbance is
19.47mg/g。
Embodiment 5: by the sphericity mesoporous silicon dioxide (MCM-41) of above-mentioned preparation take 0.05g in equipped with 50 mL containing xanthate
In the waste water of 60 mg/L, after adjusting pH to 5 with dilute hydrochloric acid, then 60 min of room temperature magnetic agitation is filtered, using ultraviolet spectrometry light
Degree meter measures remaining xanthate concentration in solution under 301 nm wavelength, and xanthate removal efficiency is 89.80% in solution, and adsorbance is
53.88mg/g。
Embodiment 6: by the sphericity mesoporous silicon dioxide (MCM-41) of above-mentioned preparation take 0.05g in equipped with 50 mL containing xanthate
In the waste water of 20 mg/L, after adjusting pH to 5 with dilute hydrochloric acid, then 15 min of room temperature magnetic agitation is filtered, using ultraviolet spectrometry light
Degree meter measures remaining xanthate concentration in solution under 301 nm wavelength, and xanthate removal efficiency is 97.41% in solution, and adsorbance is
19.48mg/g。
Embodiment 7: by the sphericity mesoporous silicon dioxide (MCM-41) of above-mentioned preparation take 0.05g in equipped with 50 mL containing xanthate
In the waste water of 20 mg/L, after adjusting pH to 5 with dilute hydrochloric acid, then 45 min of room temperature magnetic agitation is filtered, using ultraviolet spectrometry light
Degree meter measures remaining xanthate concentration in solution under 301 nm wavelength, and xanthate removal efficiency is 98.17% in solution, and adsorbance is
19.63mg/g。
Embodiment 8: by the sphericity mesoporous silicon dioxide (MCM-41) of above-mentioned preparation take 0.005g in equipped with 50 mL containing xanthate
In the waste water of 20 mg/L, after adjusting pH to 5 with dilute hydrochloric acid, then 15 min of room temperature magnetic agitation is filtered, using ultraviolet spectrometry light
Degree meter measures remaining xanthate concentration in solution under 301 nm wavelength, and xanthate removal efficiency is 97.56% in solution, and adsorbance reaches
195.12 mg/g。
Embodiment 9: by the sphericity mesoporous silicon dioxide (MCM-41) of above-mentioned preparation take 0.01g in equipped with 50 mL containing xanthate
In the waste water of 20 mg/L, after adjusting pH to 5 with dilute hydrochloric acid, then room temperature magnetic agitation 15min is filtered, using ultraviolet spectrometry light
Degree meter measures remaining xanthate concentration in solution under 301nm wavelength, and xanthate removal efficiency is 97.89% in solution, and adsorbance is
97.89mg/g。
Embodiment 10: by the sphericity mesoporous silicon dioxide (MCM-41) of above-mentioned preparation take 0.02g in equipped with 50 mL containing xanthate
In the waste water of 20 mg/L, after adjusting pH to 5 with dilute hydrochloric acid, then room temperature magnetic agitation 15min is filtered, using ultraviolet spectrometry light
Degree meter measures remaining xanthate concentration in solution under 301 nm wavelength, and xanthate removal efficiency is 98.15% in solution, and adsorbance is
49.08mg/g。
Embodiment 11: the mesoporous silicon oxide (SBA-15) of Template synthesis take 0.05g in equipped with 50 mL containing xanthate 20
In the waste water of mg/L, after adjusting pH to 5 with dilute hydrochloric acid, then 15 min of room temperature magnetic agitation is filtered, using uv-spectrophotometric
Meter measures remaining xanthate concentration in solution under 301 nm wavelength, and xanthate removal efficiency is 95.32% in solution, and adsorbance is
19.06mg/g。
Embodiment 12: the mesoporous silicon oxide (SBA-15) of Template synthesis take 0.03g in equipped with 50 mL containing xanthate 30
In the waste water of mg/L, after adjusting pH to 5 with dilute hydrochloric acid, then 30 min of room temperature magnetic agitation is filtered, using uv-spectrophotometric
Meter measures remaining xanthate concentration in solution under 301 nm wavelength, and xanthate removal efficiency is 92.35% in solution, and adsorbance is
46.18mg/g。
Embodiment 13: the mesoporous silicon oxide (SBA-15) of acid system synthesis takes 0.03g in equipped with 50 mL, 20 mg/ containing xanthate
In the waste water of L, after adjusting pH to 5 with dilute hydrochloric acid, then 30 min of room temperature magnetic agitation is filtered, and is existed using ultraviolet specrophotometer
Remaining xanthate concentration in solution is measured under 301 nm wavelength, xanthate removal efficiency is 83.35% in solution, adsorbance 27.78mg/
g。
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Within protection scope of the present invention, therefore, protection scope of the present invention should be based on the protection scope of the described claims lid.
Claims (3)
1. a kind of for adsorbing the processing method of xanthate in waste water, it is characterised in that: including by mesoporous the two of 0.005g-0.05g
Silica is added in the 50 mL waste water of the 10 mg/L-60 mg/L containing xanthate, and after adjusting pH to 3-6 with dilute hydrochloric acid, room temperature magnetic force is stirred
It is filtered after mixing 10min-90 min；Spherical mesoporous silicon oxide is homemade spherical MCM-41.
2. as described in claim 1 a kind of for adsorbing the processing method of xanthate in waste water, it is characterised in that: spherical is mesoporous
Silica also can be replaced the SBA-15 of SBA-15 or the acid system synthesis using Template synthesis.
3. as described in claim 1 a kind of for adsorbing the processing method of xanthate in waste water, it is characterised in that: spherical is mesoporous
Silica also can be replaced rodlike, helical form or ink ampuliform the meso-porous titanium dioxide for changing surfactant chain length and synthesizing
Silicon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710045729.4A CN106669591B (en) | 2017-01-20 | 2017-01-20 | It is a kind of for adsorbing the processing method of xanthate in waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710045729.4A CN106669591B (en) | 2017-01-20 | 2017-01-20 | It is a kind of for adsorbing the processing method of xanthate in waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106669591A CN106669591A (en) | 2017-05-17 |
| CN106669591B true CN106669591B (en) | 2019-06-11 |
Family
ID=58860067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710045729.4A Active CN106669591B (en) | 2017-01-20 | 2017-01-20 | It is a kind of for adsorbing the processing method of xanthate in waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106669591B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159113B (en) * | 2017-05-27 | 2019-11-22 | 长安大学 | It is a kind of for adsorbing the load TiO of xanthate2Active carbon and preparation method thereof and adsorption method |
| CN107096501B (en) * | 2017-05-27 | 2020-04-24 | 长安大学 | Iron ion loaded activated carbon for adsorbing xanthate and preparation method and adsorption method thereof |
| CN108706774A (en) * | 2018-06-08 | 2018-10-26 | 昆明理工大学 | A kind of processing method of the waste water containing xanthate |
| CN109647345A (en) * | 2019-01-10 | 2019-04-19 | 江西理工大学 | It is a kind of remove xanthate organically modified montmorillonite clay adsorbent and its application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1989071A (en) * | 2004-04-23 | 2007-06-27 | 麻省理工学院 | Mesostructured zeolitic materials, and methods of making and using the same |
| CN103861556A (en) * | 2012-12-18 | 2014-06-18 | 同济大学 | Mesoporous material preparation method using fly ash |
-
2017
- 2017-01-20 CN CN201710045729.4A patent/CN106669591B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1989071A (en) * | 2004-04-23 | 2007-06-27 | 麻省理工学院 | Mesostructured zeolitic materials, and methods of making and using the same |
| CN103861556A (en) * | 2012-12-18 | 2014-06-18 | 同济大学 | Mesoporous material preparation method using fly ash |
Non-Patent Citations (1)
| Title |
|---|
| 连续在线原位ATR-FTIR技术测定介孔CuAl2O4对黄药的吸附;葛东来等;《物理化学学报》;20121114;第29卷(第2期);第371-376页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106669591A (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106669591B (en) | It is a kind of for adsorbing the processing method of xanthate in waste water | |
| Luo et al. | Nanocomposites of graphene oxide-hydrated zirconium oxide for simultaneous removal of As (III) and As (V) from water | |
| CN103752268B (en) | The filter core preparation method and application of heavy metal and arsenic, fluorine in absorption drinking water | |
| Liang et al. | Preparation of mixed rare earths modified chitosan for fluoride adsorption | |
| CN105107471B (en) | Sulfydryl lignocellulosic/montmorillonite Composite heavy metal absorbent and preparation and application | |
| CN102161781A (en) | Modified chitosan material capable of absorbing heavy metal ions and preparation method thereof | |
| CN106750356A (en) | A kind of method that metal-organic framework materials of utilization UiO 66 purify selenium-containing wastewater | |
| CN105664866A (en) | Application of ligninsulfonate-intercalated hydrotalcite | |
| CN104014314B (en) | Bio-adsorbent, preparation method and application | |
| CN103418338B (en) | Concave soil adsorption material carrying manganite and method for removing S2- in tannery wastewater | |
| CN108455679A (en) | A kind of preparation method and applications of three-dimensional globular scorodite crystals | |
| CN109078608A (en) | Arsenic-removing adsorption agent and preparation method and application based on iron modified activated aluminum oxide | |
| CN108479689A (en) | A kind of adsorbent of removal arsenic in waste water acid ion | |
| CN104549146A (en) | Aluminum oxide modified multiwalled carbon nanotube nano composite material as well as preparation method and application thereof | |
| CN109967134A (en) | A kind of Nano ferric hydroxide modified anion resin composite materials and the preparation method and application thereof | |
| CN105289516A (en) | Surface amination nanometer ferroferric oxide adsorbent and preparation method thereof | |
| CN102784614A (en) | Preparation method for layered double hydroxides containing four-valence metal cations and application thereof | |
| CN105771878A (en) | Ferro-manganese modified aluminum oxide adsorbent and application thereof in As (III) adsorption | |
| CN102744030A (en) | Graphite oxide-containing nano-material, its preparation method, water treatment agent and its water treatment method | |
| JP5137232B2 (en) | Method for producing porous iron oxide and method for treating water to be treated | |
| CN104275147A (en) | Natural ore soil loaded nano arsenic removal material and preparation method thereof | |
| CN101648130A (en) | Preparing method of titanium-rare earth composite adsorbent capable of efficiently removing arsenic | |
| CN102698703B (en) | Method for preparing arsenic adsorbent and method for treating waste water | |
| CN113105066B (en) | Zinc smelting process for improving xanthate wastewater treatment efficiency | |
| CN102107907B (en) | Porous nano hydrated titanium dioxide dearsenifying material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Ying Inventor after: Wang Jie Inventor after: He Wentao Inventor after: Qin Shuhao Inventor after: Yang Yingjuan Inventor after: Zhang Qin Inventor after: Yu Jie Inventor before: Wang Jie Inventor before: He Wentao Inventor before: Qin Shuhao Inventor before: Zhou Ying Inventor before: Yang Yingjuan Inventor before: Zhang Qin Inventor before: Yu Jie |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |