CN105905897A - Preparation method of active carbon for waste water treatment - Google Patents
Preparation method of active carbon for waste water treatment Download PDFInfo
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- CN105905897A CN105905897A CN201510385462.4A CN201510385462A CN105905897A CN 105905897 A CN105905897 A CN 105905897A CN 201510385462 A CN201510385462 A CN 201510385462A CN 105905897 A CN105905897 A CN 105905897A
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Abstract
The invention discloses a preparation method of active carbon for waste water treatment. The preparation method utilizes a phosphoric acid immersion-microwave irradiation method to realize modification preparation of active carbon from saw dust pyrolytic carbon. The preparation method comprises cleaning saw dust pyrolytic carbon through distilled water, carrying out drying and sieving, immersing the saw dust pyrolytic carbon through phosphoric acid with a mass fraction of 40-60% according to a dipping ratio (solid-liquid ratio) of 1: 4-1: 6, directly putting the immersed saw dust pyrolytic carbon into a microwave oven, carrying out irradiation for full activation of pyrolytic carbon so that active carbon is obtained, treating the active carbon through a HCl solution with a concentration of 10% in a water bath at a temperature of 80 DEG C for 2h to remove ash, carrying out cleaning until pH is 7 and carrying out drying to obtain active carbon. The modified active carbon has high adsorption properties, effectively adsorbs and treats harmful substances in waste water, utilizes waste saw dust pyrolytic carbon as a raw material, has abundant sources, utilizes cheap and easily available raw materials, reduces a waste water treatment cost, effectively utilizes wastes, reduces saw dust and pyrolytic carbon discharge amounts, protects the environment and saves resources.
Description
Technical field
The present invention relates to activated carbon preparation field, the preparation side of a kind of use in waste water treatment activated carbon
Method.
Background technology
Waste water,waste gas and industrial residue is three big arch-criminals of environmental pollution, waste water as " three wastes " it
One, occur mainly with industrial processes.Industrial wastewater contains raw material contained in industrial production,
The refuses such as the intermediate produced, its yield is big, and colourity is deep, complicated component, Toxic content are high, gives
Waste water processes and brings certain difficulty.
The processing method of industrial wastewater mainly has four kinds: method of chemical treatment, physical treatment process, physico
Learn facture and biological treatment.Absorption method is the processing method of a kind of physics, and it is with porous
One or more components in water sample are adsorbed onto the surface of solids by solid absorbent, thus reach to purify
The purpose of waste water.The harmful substance being adsorbed onto the surface of solids can pass through suitable solution or high-temperature heating
Desorb, so that adsorbent can reuse.The kind of adsorbent is a lot, and activated carbon is it
In one, activated carbon has a highest clearance to the organic substance in waste water, but commercial activated carbon
Expensive, it is unsuitable for large-scale use.Therefore, one not only economy but also effective and environmental protection how are prepared
Activated carbon adsorbent become the target that current industry pole need to be improved.
Sawdust is a kind of discarded object produced in timber processing, and China is forest resourceies undeveloped
Country, discarded sawdust is effectively utilized the theory not only conforming with environmental protection in addition, and can bring
The economic effect of benefit.Sawdust can be used for exploitation many is of value to the product that people produce and live, will saw
End carries out pyrolysis and can produce pyrolysis oil and pyrolysis gas, pyrolysis oil and pyrolysis gas and be widely used in life and raw
The energy supply produced, the pyrolytic carbon that sawdust pyrolysis simultaneously produces still can be used, as being used as absorption
Agent.Now the absorption property of pyrolytic carbon is very limited, and the absorption property how improving pyrolytic carbon becomes system
The key of standby Cheap highly effective adsorbent.
Summary of the invention
Expensive for current commercial activated carbon adsorbent, make cost for wastewater treatment increase, to enterprise
The problem causing financial burden, the present invention utilizes phosphoric acid dip and microwave irradiation combination method to be pyrolyzed sawdust
Charcoal carries out effective modification, becomes activated carbon, modified sawdust pyrolytic carbon (i.e. activated carbon) after modification
Absorption property is greatly improved, and can effectively process industrial wastewater, especially organic industrial sewage, reduce
Cost for wastewater treatment, is effectively reduced business burden.It is an object of the invention to provide at a kind of waste water
The preparation method of reason activated carbon, improves the problem that business processes waste water cost is high.
The object of the invention to solve the technical problems realizes by the following technical solutions.Foundation
The preparation method of a kind of use in waste water treatment activated carbon that the present invention proposes, wherein: first sawdust is pyrolyzed
Charcoal is carried out and dries, and sieves, then by impregnating ratio (solid-to-liquid ratio) phosphoric acid dip, then will leaching
Sawdust pyrolytic carbon after bubble is directly placed into micro-wave oven irradiation makes pyrolytic carbon fully activate, and becomes activated carbon,
Afterwards by activated carbon with 10% HCl solution in 80 DEG C of water-bath 2h to remove ash content, finally clean to
Neutrality, dries, obtains activated carbon.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The preparation method of aforesaid a kind of use in waste water treatment activated carbon, wherein, cleans pyrolysis with distilled water
Charcoal and activated carbon.
The preparation method of aforesaid a kind of use in waste water treatment activated carbon, wherein, during drying, temperature should be less than
55 DEG C, preferably 50 DEG C.
The preparation method of aforesaid a kind of use in waste water treatment activated carbon, wherein, after sieving, selection particle diameter is
The sawdust pyrolytic carbon of 60 mesh-80 mesh.
The preparation method of aforesaid a kind of use in waste water treatment activated carbon, wherein, described impregnating ratio (solid-liquid
Than) it is 1:4-1:6, preferably 1:5.
The preparation method of aforesaid a kind of use in waste water treatment activated carbon, wherein, described phosphoric acid quality mark
For 40%-60%, preferably 50%.
The preparation method of aforesaid a kind of use in waste water treatment activated carbon, wherein, the microwave time is 2min-4
Min, microwave power is 380W-540W.
By technique scheme, the preparation method of the present invention a kind of use in waste water treatment activated carbon, at least
There is following advantages and beneficial effect: sawdust pyrolytic carbon abundance, cheap and easy to get, sawdust is pyrolyzed
Charcoal is modified makes high-efficiency activated carbon adsorbent, processes for waste water, not only reduces waste water and be processed into
This, alleviate business burden, and be effectively utilized refuse, decrease the discharge of sawdust and pyrolytic carbon
Amount, protects environment, has saved resource.
Phosphoric acid dip-microwave radiation method modification sawdust pyrolytic carbon is prepared the mechanism of activated carbon and is: phosphoric acid has
Having strong water imbibition and dehydration property, there is strong dehydration, hydrogen unit in pyrolytic carbon under the immersion of phosphoric acid
Element and oxygen element remove with the form of water so that the carbon residual rate of pyrolytic carbon improves and carbonization occurs；Micro-
The penetrability of ripple is extremely strong, and whole sample is from outside to inside under the effect of microwave for the pyrolytic carbon after phosphoric acid dip
Activate, under certain microwave power, phosphoric acid oxidative attack charcoal body pore-creating lentamente, if microwave
Power is too high, and phosphoric acid progressively resolves into gas effusion, and charcoal cognition loses the protection of phosphoric acid and burns mistake, makes
Viability carbon productivity is on the low side.The impregnating ratio (solid-to-liquid ratio) of pyrolytic carbon and phosphoric acid is to affect active carbon adsorption
The key factor of performance.Impregnating ratio is excessive, and phosphoric acid amount is few not enough so that pyrolytic carbon generation carbonization-activation,
Impregnating ratio is too small, and phosphoric acid amount ambassador's pyrolytic carbon occurs excessive carbonization-activation, makes inside macropore occur,
Cause specific surface area to decline, affect absorption property.Therefore the most modified process conditions are selected very
Important.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the present invention's
Technological means, and can being practiced according to the content of specification, and in order to allow the above-mentioned of the present invention and
Other objects, features and advantages can become apparent, and below especially exemplified by preferred embodiment, describes in detail
As follows.
Accompanying drawing explanation
(nothing)
Detailed description of the invention
By further illustrating the technological means and merit that the present invention taked by reaching predetermined goal of the invention
Effect, below in conjunction with preferred embodiment, the system to a kind of use in waste water treatment activated carbon proposed according to the present invention
Its detailed description of the invention of Preparation Method, step and effect thereof, after describing in detail such as.
The preparation method of the present invention a kind of use in waste water treatment activated carbon, its preparation process is as follows: by sawdust
Pyrolytic carbon distilled water immersion 24h, changes a water every 6h, dries the most in an oven to constant weight.
Being sieved by sawdust pyrolytic carbon, selecting particle diameter is that the sawdust pyrolytic carbon of 60-80 mesh is as raw material.Claim every time
Take 0.1g pyrolytic carbon in crucible, add certain volume one according to the impregnating ratio (solid-to-liquid ratio) of design
The phosphoric acid solution determining mass fraction soaks 24h, when then irradiating one section with microwave under the power of design
Between, make pyrolytic carbon fully activate.By products obtained therefrom with 10% HCl solution in 80 DEG C of water-bath 2h with
Remove ash content, be then washed till neutrality with distilled water, dry, obtain activated carbon.
In more detail, the preparation method of aforesaid a kind of use in waste water treatment activated carbon, wherein, during drying
Temperature should be less than 55 DEG C, preferably 50 DEG C.
Preferably, the preparation method of aforesaid a kind of use in waste water treatment activated carbon, wherein, described dipping
It is 1:4-1:6 than (solid-to-liquid ratio), preferably 1:5；Described phosphoric acid quality mark is 40%-60%, preferably
50%；The described microwave time is 2min-4min, and microwave power is 380W-540W.
Illustrate below in conjunction with preferred embodiment.
Calculation of yield formula:
γ represents the productivity of modified pyrolytic carbon, mModified Activated CarbonFor preparing the quality (unit: g) of the sawdust activated carbon of gained,
mUnmodified charcoalRepresent the quality (unit: g) of raw material sawdust pyrolytic carbon.
Adsorbance computing formula:
qeFor unit adsorbance (unit: mg g-1), C0Initial concentration (unit: mg L for solution-1), Ce is that equilibrium concentration is (single
Position: mg L-1), the volume (unit: L) of solution when V is absorption, the quality (unit: g) of activated carbon when m is absorption.
Embodiment 1
Weigh 0.1g sawdust pyrolytic carbon, according to phosphoric acid quality mark 50%, impregnating ratio 15, microwave
The condition of time 2min, changes microwave power, prepares activated carbon, and result is as shown in table 1:
The impact on the active carbon adsorption performance of preparation of table 1 microwave power
Embodiment 2
Weigh 0.1g sawdust pyrolytic carbon, according to phosphoric acid quality mark 50%, impregnating ratio 15, microwave
The condition of power 380W, changes the microwave time, prepares activated carbon, and result is as shown in table 2:
The impact on the active carbon adsorption performance of preparation of the table 2 microwave time
Embodiment 3
Weighing 0.1g sawdust pyrolytic carbon, according to impregnating ratio 15, microwave power 380W, during microwave
Between the condition of 2min, change phosphoric acid quality mark, prepare activated carbon, result is as shown in table 3:
The impact on the active carbon adsorption performance of preparation of the table 3 phosphoric acid quality mark
Embodiment 4
Weigh 0.1g sawdust pyrolytic carbon, according to microwave power 380W, microwave time 2min, phosphoric acid
Mass fraction is the condition of 50%, changes impregnating ratio, prepares activated carbon, and result is as shown in table 4:
The impact on the active carbon adsorption performance of preparation of table 4 impregnating ratio
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any form
On restriction, although the present invention is disclosed above with preferred embodiment, but is not limited to this
Bright, any those skilled in the art, in the range of without departing from technical solution of the present invention, when can profit
Make a little change with the technology contents of the disclosure above or be modified to the Equivalent embodiments of equivalent variations, but
Every without departing from technical solution of the present invention content, the technical spirit of the foundation present invention is to above example institute
Any simple modification, equivalent variations and the modification made, all still falls within the range of technical solution of the present invention.
Claims (7)
1. the preparation method of a use in waste water treatment activated carbon, it is characterised in that it comprises the following steps:
(1) first sawdust pyrolytic carbon is carried out and dries, sieve；
(2) by impregnating ratio phosphoric acid dip；
(3) the sawdust pyrolytic carbon after soaking is directly placed into micro-wave oven irradiation makes pyrolytic carbon fully activate,
Become activated carbon；
(4) by activated carbon with 10% HCl solution in 80 DEG C of water-bath 2h to remove ash content；
(5) step (4) gained activated carbon is cleaned to neutral, dry.
The preparation method of a kind of use in waste water treatment activated carbon the most according to claim 1, its feature
It is to clean pyrolytic carbon and activated carbon with distilled water.
The preparation method of a kind of use in waste water treatment activated carbon the most according to claim 1, its feature
When being to dry, temperature should be less than 55 DEG C, preferably 50 DEG C.
The preparation method of a kind of use in waste water treatment activated carbon the most according to claim 1, its feature
The sawdust pyrolytic carbon selecting particle diameter to be 60 mesh-80 mesh after being to sieve.
The preparation method of a kind of use in waste water treatment activated carbon the most according to claim 1, its feature
It is that described impregnating ratio is 1:4-1:6, preferably 1:5.
The preparation method of a kind of use in waste water treatment activated carbon the most according to claim 1, its feature
It is that described phosphoric acid quality mark is 40%-60%, preferably 50%.
The preparation method of a kind of use in waste water treatment activated carbon the most according to claim 1, its feature
Being that the microwave time is 2min-4min, microwave power is 380W-540W.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111484012A (en) * | 2020-05-26 | 2020-08-04 | 王占军 | Method for producing decolored active carbon by using phosphoric acid method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020013801A (en) * | 2000-08-12 | 2002-02-21 | 이길환 | Manufacturing method of activated carbon and regenerating method of spent activated carbon using microwave |
| CN1724165A (en) * | 2005-06-07 | 2006-01-25 | 昆明理工大学 | Process of treating catalyst carrier waste active carbon for synthesizing vinyl acetate |
| CN101269345A (en) * | 2008-05-08 | 2008-09-24 | 郴州高鑫铂业有限公司 | Oxidation treatment method for carrier carbon surface |
| CN101811016A (en) * | 2010-04-22 | 2010-08-25 | 浙江大学 | Method for preparing modified active carbon for hydrogen iodide catalytic decomposition through microwave treatment |
| CN105293489A (en) * | 2015-11-16 | 2016-02-03 | 昆明理工大学 | Regeneration method of waste active carbon for monosodium glutamate by supersonic wave and spray |
-
2015
- 2015-07-01 CN CN201510385462.4A patent/CN105905897A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020013801A (en) * | 2000-08-12 | 2002-02-21 | 이길환 | Manufacturing method of activated carbon and regenerating method of spent activated carbon using microwave |
| CN1724165A (en) * | 2005-06-07 | 2006-01-25 | 昆明理工大学 | Process of treating catalyst carrier waste active carbon for synthesizing vinyl acetate |
| CN101269345A (en) * | 2008-05-08 | 2008-09-24 | 郴州高鑫铂业有限公司 | Oxidation treatment method for carrier carbon surface |
| CN101811016A (en) * | 2010-04-22 | 2010-08-25 | 浙江大学 | Method for preparing modified active carbon for hydrogen iodide catalytic decomposition through microwave treatment |
| CN105293489A (en) * | 2015-11-16 | 2016-02-03 | 昆明理工大学 | Regeneration method of waste active carbon for monosodium glutamate by supersonic wave and spray |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111484012A (en) * | 2020-05-26 | 2020-08-04 | 王占军 | Method for producing decolored active carbon by using phosphoric acid method |
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