CN105854802A - Cadmium-containing sewage treatment nano-composite material and preparing method thereof - Google Patents
Cadmium-containing sewage treatment nano-composite material and preparing method thereof Download PDFInfo
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- CN105854802A CN105854802A CN201610326515.XA CN201610326515A CN105854802A CN 105854802 A CN105854802 A CN 105854802A CN 201610326515 A CN201610326515 A CN 201610326515A CN 105854802 A CN105854802 A CN 105854802A
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- composite material
- deionized water
- potassium permanganate
- cadmium
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- 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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
- B01J20/205—Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs
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- 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
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/42—Materials comprising a mixture of inorganic materials
Abstract
The patent discloses a cadmium-containing sewage treatment nano-composite material and a preparing method thereof. The cadmium-containing sewage treatment nano-composite material is prepared from the following raw materials: 30-50 parts of potassium permanganate, 0.8-1 part of sodium dodecyl benzene sulfonate, 10-30 parts of carbon nanotube, 600-900 parts of deionized water and 240-300 parts of anhydrous ethanol. The preparing method comprises the following steps: dissolving potassium permanganate in deionized water; adding sodium dodecyl benzene sulfonate to be stirred uniformly; adding the carbon nanotube; using an ultrasonic dispersing instrument for performing ultrasonic dispersion at a frequency of 35000-45000Hz and a temperature of 50-80 DEG C; slowly dropping anhydrous ethanol to continue dispersion; filtering after dispersion to separate solids and liquid; washing the solids with deionized water until the solids are neutral; weighing after baking for 3-6 hours at 60 DEG C, so as to obtain the nano-composite material. According to the invention, the adsorption rate is higher than 85%; the energy consumption is only caused by the ultrasonic dispersion as well as heating and baking, all belonging to low-temperature short-term operations; the energy consumption is far lower than that of the prior art; the preparing method is simple and easy to control and regulate, so as to facilitate popularization and application.
Description
Technical field
The invention belongs to wastewater treatment catalyst technical field, particularly relate to a kind of containing cadmium sewage disposal nano composite material and preparation method thereof.
Background technology
Along with China's economy develops rapidly and being on the increase of population, the generation amount of house refuse gets more and more, and is the most quickly increasing, and rubbish is dealt carefully with becomes a urgent task.Sanitary landfills can for a long time, reliably and securely process does not has the solid waste of value, but percolate is a kind of poisonous and hazardous high concentration material, particularly some heavy metals in percolate can bring serious secondary pollution to environment.Such as cadmium (Cd), lead (Pb), arsenic (As), hydrargyrum (Hg) etc., wherein cadmium is toxicity and the stronger heavy metal element of biological activity.The cadmium (Cd) of people's such as Long Term Contact low quality concentration, will causing the gastrointestinal disease such as diarrhoea, vomiting, if contacting substantial amounts of cadmium (Cd), nephropathy can be caused the most dead.Cadmium has depot action in human body, it is 10～30 years incubation period, therefore people are higher to the process attention rate of cadmium metal in percolate (Cd), and in percolate, the height of cadmium metal mass concentration is also one of mark weighing percolate whether secondary pollution simultaneously.
In the processing method containing heavy metal ion sewage, currently mainly have precipitation, flocculating sedimentation, reverse osmosis, ion exchange, cementation and an activated carbon adsorption etc., wherein absorption method with its removal efficiency in trace concentration solution high, economical and convenient to operate be considered as the most attractive.Existing adsorbent exists that adsorption capacity is low, selectivity is low or the high deficiency of preparation cost, such as Bystrzejewski M. et al. (2009, Carbon) the carbon-coated magnetic nanoparticle prepared by, its maximum adsorption capacity only has 1.77 mg/g(dosages to be 5.0 g/L, initial concentration Ci=20 mg/L), adsorption rate is less than 40%, Wang T. et al. (2013, Journal of Hazardous
Materials) CNT prepared by, then need
Under conditions of 130 DEG C, heating 72 h, energy consumption is relatively big, and therefore, prior art needs a kind of novel nano material, and during to bring preparation, energy consumption is low, the advantage that the material adsorption rate of preparation is high.
Summary of the invention
The invention is intended to provide one containing cadmium sewage disposal nano composite material and preparation method thereof, to solve the nano material containing cadmium sewage that processes of prior art, to prepare energy consumption high, the defect that adsorption rate is low.
One in this programme sewage disposal nano composite material Han cadmium, including the raw material of following parts by weight: potassium permanganate 30～50 parts, dodecylbenzene sodium sulfonate 0.8～1 part, CNT 10～30 parts, deionized water 600～900 parts, dehydrated alcohol 240～300 parts.
As preferably, a kind of sewage disposal nano composite material Han cadmium, including the raw material of following parts by weight: 30 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 10 parts, deionized water 900 parts, dehydrated alcohol 240 parts.
As preferably, a kind of sewage disposal nano composite material Han cadmium, including the raw material of following parts by weight: 50 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 30 parts, deionized water 900 parts, dehydrated alcohol 300 parts.
As preferably, a kind of sewage disposal nano composite material Han cadmium, including the raw material of following parts by weight: 30 parts of potassium permanganate, dodecylbenzene sodium sulfonate 0.8 part, CNT 10 parts, deionized water 600 parts, dehydrated alcohol 240 parts.
Manufacture method containing cadmium sewage disposal nano composite material, comprise the following steps: potassium permanganate is dissolved in deionized water, and add dodecylbenzene sodium sulfonate and stir, add CNT, utilizing ultrasound wave separating apparatus is 35000～45000Hz in frequency, temperature carries out ultrasonic disperse at 50 DEG C～80 DEG C, and it is slowly dropped into dehydrated alcohol continuation dispersion, sucking filtration after dispersion, make its solid-liquid separation, it is washed with deionized solid the most neutral, weighs after toasting 3～6h at 60 DEG C, i.e. obtain nano composite material.
Beneficial effects of the present invention: the chemical composition of manganese dioxide uniqueness and physicochemical properties so that it is have good absorption property, controls synthesis by ultrasonic ethanol reduction auxiliary law and obtains MnO2～CNTs composite nano materials, take full advantage of composite material surface structure and crystal structure changes, create surface defect effect, small-size effect and macro quanta tunnel effect etc., so that composite material exhibits goes out the sewage disposal performance of excellence, the sewage disposal containing cadmium is served obvious facilitation, easily separate with waste water, easily-activated and be easy to seriality operation feature, there is preferable application prospect, present invention addresses the problem that the dispersion effect of CNT is undesirable simultaneously, concentration of cadmium ions is made substantially to reduce, thus sanitary sewage and efficiently processing of sanitary wastewater are provided guarantee.Compared to existing technologies, the adsorption rate of the present invention is more than 85%, and energy consumption is only limitted to ultrasonic disperse and heated baking, broadly fall into low-temperature short-time operation, accordingly, it is capable to consumption is far below the energy consumption of prior art, and manufacture method is simple, it is easy to control and regulate, it is simple to promotion and application.
Accompanying drawing explanation
Fig. 1 is the SEM figure that the present invention contains cadmium sewage disposal nano composite material.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Fig. 1 be the present invention be MnO2The electron scanning imaging figure of-CNTs nano composite material, by observation learn synthesized by the composite microscopic appearance that obtains uniform, particle diameter is at about 200nm.
Embodiment 1: a kind of sewage disposal nano composite material Han cadmium, including the raw material of following parts by weight meter: 30 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 10 parts, deionized water 900 parts, dehydrated alcohol 240 parts.
A kind of manufacture method containing cadmium sewage disposal nano composite material: potassium permanganate is dissolved in deionized water according to above-mentioned raw materials weight fraction, add dodecylbenzene sodium sulfonate to stir, add CNT, utilizing ultrasound wave separating apparatus is 35000～45000Hz in frequency, temperature carries out ultrasonic disperse at 50 DEG C～80 DEG C, and it is slowly dropped into dehydrated alcohol continuation dispersion, sucking filtration after dispersion, reach the purpose of solid-liquid separation, it is washed with deionized solid to neutral, weigh after toasting 3～6 hours at 60 DEG C, i.e. obtain MnO2-CNTs nano composite material.
Embodiment 2 and the change differing only in formula of embodiment 1, including the raw material of following parts by weight meter: 40 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 10 parts, deionized water 900 parts, dehydrated alcohol 240 parts.
Embodiment 3 and the change differing only in formula of embodiment 1, including the raw material of following parts by weight meter: 50 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 10 parts, deionized water 900 parts, dehydrated alcohol 240 parts.
Embodiment 4 and the change differing only in formula of embodiment 1, including the raw material of following parts by weight meter: 30 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 15 parts, deionized water 900 parts, dehydrated alcohol 240 parts.
Embodiment 5 and the change differing only in formula of embodiment 1, including the raw material of following parts by weight meter: 30 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 20 parts, deionized water 900 parts, dehydrated alcohol 240 parts.
Embodiment 6 and the change differing only in formula of embodiment 1, including the raw material of following parts by weight meter: 30 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 25 parts, deionized water 900 parts, dehydrated alcohol 240 parts.
Embodiment 7 and the change differing only in formula of embodiment 1, including the raw material of following parts by weight meter: 30 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 30 parts, deionized water 900 parts, dehydrated alcohol 240 parts.
Embodiment 8 and the change differing only in formula of embodiment 1, including the raw material of following parts by weight meter: 50 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 30 parts, deionized water 900 parts, dehydrated alcohol 300 parts.
Embodiment 9 and the change differing only in formula of embodiment 1, including following parts by weight raw material: 30 parts of potassium permanganate, dodecylbenzene sodium sulfonate 0.8 part, CNT 10 parts, deionized water 600 parts, dehydrated alcohol 240 parts.
By to embodiments of the invention 1～embodiment 9 checking, the MnO prepared by the present invention2-CNTs nano composite material to the adsorption rate containing cadmium sewage all more than 85%.
The foregoing is only the preferred embodiments of the present invention; not in order to limit the present invention; for a person skilled in the art; the present invention can have various modifications and variations; all within the spirit and principles in the present invention; the any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (5)
1. a sewage disposal nano composite material Han cadmium, it is characterised in that include the raw material of following parts by weight: potassium permanganate 30～50 parts, dodecylbenzene sodium sulfonate 0.8～1 part, CNT 10～30 parts, deionized water 600～900 parts, dehydrated alcohol 240～300 parts.
The most according to claim 1 containing cadmium sewage disposal nano composite material, it is characterised in that to include the raw material of following parts by weight: 30 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 10 parts, deionized water 900 parts, dehydrated alcohol 240 parts.
It is the most according to claim 2 containing cadmium sewage disposal nano composite material, it is characterised in that: include the raw material of following parts by weight: 50 parts of potassium permanganate, dodecylbenzene sodium sulfonate 1 part, CNT 30 parts, deionized water 900 parts, dehydrated alcohol 300 parts.
It is the most according to claim 3 containing cadmium sewage disposal nano composite material, it is characterised in that: include the raw material of following parts by weight: 30 parts of potassium permanganate, dodecylbenzene sodium sulfonate 0.8 part, CNT 10 parts, deionized water 600 parts, dehydrated alcohol 240 parts.
5. according to the manufacture method containing cadmium sewage disposal nano composite material described in any one of Claims 1 to 4, it is characterized in that, comprise the following steps: potassium permanganate is dissolved in deionized water, and add dodecylbenzene sodium sulfonate and stir, add CNT, utilizing ultrasound wave separating apparatus is 35000～45000Hz in frequency, temperature carries out ultrasonic disperse at 50 DEG C～80 DEG C, and it is slowly dropped into dehydrated alcohol continuation dispersion, sucking filtration after dispersion, make its solid-liquid separation, it is washed with deionized solid to neutral, weigh after toasting 3～6h at 60 DEG C, i.e. obtain nano composite material.
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| CN201610326515.XA CN105854802A (en) | 2016-05-17 | 2016-05-17 | Cadmium-containing sewage treatment nano-composite material and preparing method thereof |
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| CN201610326515.XA CN105854802A (en) | 2016-05-17 | 2016-05-17 | Cadmium-containing sewage treatment nano-composite material and preparing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108905955A (en) * | 2018-07-18 | 2018-11-30 | 淮阴工学院 | A kind of method of microwave method synthesis manganese oxide attapulgite composite material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108905955A (en) * | 2018-07-18 | 2018-11-30 | 淮阴工学院 | A kind of method of microwave method synthesis manganese oxide attapulgite composite material |
| CN108905955B (en) * | 2018-07-18 | 2021-05-07 | 淮阴工学院 | Method for synthesizing manganese oxide attapulgite composite material by microwave method |
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Application publication date: 20160817 |