CN100584752C - Water purification active carbon prepared from vegetal castoff and preparation method thereof - Google Patents
Water purification active carbon prepared from vegetal castoff and preparation method thereof Download PDFInfo
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- CN100584752C CN100584752C CN200710119645A CN200710119645A CN100584752C CN 100584752 C CN100584752 C CN 100584752C CN 200710119645 A CN200710119645 A CN 200710119645A CN 200710119645 A CN200710119645 A CN 200710119645A CN 100584752 C CN100584752 C CN 100584752C
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Abstract
A purified water activated carbon produced from the plant castoff includes the material ingredients of following weight percentage: The percentage of highly processed plant waste residue is between 80 percent and 84 percent. The percentage of non highly processed plant waste residue or a soft coal is between 15 percent and 19 percent. The percentage of a chemical additive is between 1 percent and 5 percent. The present invention makes the best of a lignin, a fibrin and a rudimental sugar in the plant waste residue and takes the ingredients as a backbone. A little chemical substance is used to adjust the hole distribution and the surface functional groups. The produced purified water activated carbon has the following advantages. (1). Strong decoloration capability. The present invention is applicable to the color substance with giant molecule group. (2). Strong deodorization capability. The present invention is especially applicable to the alga and alga poison. (3). Strong capability of removing the harmful and organic residuum (MCA/DCA/THC/MTBE and others). The present invention has also a low cost and a good effect.
Description
Technical field
The present invention relates to a kind of activated carbon product and manufacture method thereof that can be used as clean water treatment, particularly relate to a kind of water purification active carbon and manufacture method made from vegetable waste thereof.
Background technology
At present, the gac that is used for clean water treatment mainly is coal system particle charcoal and coal system post charcoal, their production technique mainly is divided into two kinds of raw coal direct activation particle charcoal and Tai Xi coal activation post charcoal and broken charcoals, wherein the technology of raw coal direct activation particle charcoal is raw coal-fragmentation-screening-charing-activation-aftertreatment-packing, it is low relatively that it has a cost, the prosperity of charcoal mesopore, the blue advantage that does very well that absorbs of inferior potassium, but it is higher also to have ash content, the shortcoming that intensity is poor slightly; The technology of another kind of too western coal activation post charcoal and broken charcoal is raw coal-fragmentation-abrasive dust-mixed pinching-moulding (extrusion)-charing-activation-aftertreatment-packing, it has, and ash content is low, and intensity is good, and micropore is flourishing, be fit to the advantage of conventional feedwater advanced treatment, but have the high relatively shortcoming of cost.
Summary of the invention
Technical problem solved by the invention provides a kind of utilize the vegetable waste manufacturing, with low cost, ash content is low and the decolouring and deodorizing ability is strong water purification gac.
Another object of the present invention provides the manufacture method of this water purification with gac.
A kind of water purification active carbon made from vegetable waste comprises following raw materials by weight percent composition:
Deep processing waste plant dregs 80-84%
Not deep processing waste plant dregs or bituminous coal 15-19%
Chemical additive 1-5%.
The water purification active carbon that the present invention makes with vegetable waste, wherein the deep processing waste plant dregs can be in fermentation or reacted furfural dregs or manioc waste or vinasse or bagasse or the stalk one or more, also can be the material of vegetable waste such as other plant residue behind further processing and utilization.
The water purification active carbon that the present invention makes with vegetable waste, wherein the deep processing waste plant dregs is not timber or other plant raw material depleted wood chip or bamboo bits or other waste plant dregs without deep processing after roughing.
The water purification active carbon that the present invention makes with vegetable waste, wherein chemical additive is one or more in phosphoric acid or zinc chloride or potassium hydroxide or urea or the trimeric cyanamide.
The water purification active carbon that the present invention makes with vegetable waste, its raw material preferable amount is:
Deep processing waste plant dregs 80%
Not deep processing waste plant dregs or bituminous coal 18%
Chemical additive 2%.
The present invention with the manufacture method of the water purification active carbon of vegetable waste manufacturing is: with the deep processing waste plant dregs through clean, de-iron, go stone to handle after, mix deep processing waste plant dregs, not deep processing waste plant dregs or bituminous coal and chemical additive according to the above ratio successively, be dried to moisture content≤30%, then through extrusion molding, charing, steam activation, powder process, packing at last.
Carbonization condition is that charring furnace stove tail temperature is controlled at 280-300 ℃ in the wherein charing step, 3～10 ℃/min of heat-up rate, charging capacity is the 4%-10% of body of heater gross space for shared volume in stove, and the pressure-controlling when charcoal is come out of the stove is at 30～120pa, 40 rev/mins of charring furnace rotating speeds.
Wherein activation step can be used the activation furnace of various ways again, to adopt Si Liepu fixed-bed type activation furnace is example, the reinforced time be 8 hours reinforced once, the activation furnace discharging time be discharging in 25 minutes once, activation temperature is 850～950 ℃, 1000 ℃～1100 ℃ of regenerator head temperature, advancing the activation furnace vapor pressure is 0.2 ± 0.02MPa, activation furnace internal pressure minimal pressure force must not be lower than 10Pa, can be controlled in 10Pa-50Pa, soak time 20 minutes.
The present invention makes full use of xylogen abundant in the waste plant dregs, and Mierocrystalline cellulose and residual sugar part are key, distribute and surface functional group by a small amount of chemical ingredients adjustment apertures, and the water purification that produces has the following advantages with gac:
1. decoloring ability is strong, is suitable for the macromolecular mass substance that show color and removes;
2. deodorizing capability is strong, and it is good to remove ability at algae and algae toxin;
3. it is strong to remove harmful organic residual (MCA/DCA/THC/MTBE etc.) ability, and cost is low, and is effective; Based on above reason, this gac is used for sewage disposal and has very high-performance, is the novel environment friendly scavenging material that is suitable for widespread use.
Embodiment
For further specifying the present invention, be specifically addressed with the following Examples:
Embodiment 1:
A kind of water purification active carbon made from vegetable waste comprises following raw materials by weight percent composition:
Vinasse 80%
Wood chip 15%
Potassium hydroxide 5%;
Its manufacture method is: with furfural dregs through clean, de-iron, go stone to handle after, mix furfural dregs, wood chip and phosphoric acid according to the above ratio successively, be dried to moisture content≤30%, then through extrusion molding, charing, steam activation, powder process, pack at last, stove tail temperature is controlled at 280-300 ℃ in the wherein charing step, 3～10 ℃/min of heat-up rate, charging capacity is the 4%-10% of body of heater gross space for shared volume in stove, pressure-controlling when charcoal is come out of the stove is at 30～120pa, 40 rev/mins of charring furnace rotating speeds; Activation step can adopt Si Liepu fixed-bed type activation furnace, the reinforced time be 8 hours reinforced once, the activation furnace discharging time be discharging in 25 minutes once, activation temperature is 850～950 ℃, 1000 ℃～1100 ℃ of regenerator head temperature, advancing the activation furnace vapor pressure is 0.2 ± 0.02MPa, activation furnace internal pressure minimal pressure force must not be lower than 10Pa, can be controlled in 10Pa-50Pa, soak time 20 minutes.
Embodiment 2:
A kind of water purification active carbon made from vegetable waste comprises following raw materials by weight percent composition:
Manioc waste 84%
Bamboo bits 15%
Zinc chloride 1%;
Its manufacture method is with embodiment 1.
Embodiment 3:
A kind of water purification active carbon made from vegetable waste comprises following raw materials by weight percent composition:
Furfural dregs 80%
Wood chip 18%
Phosphoric acid 2%;
Its manufacture method is with embodiment 1.
Embodiment 4:
A kind of water purification active carbon made from vegetable waste comprises following raw materials by weight percent composition:
Fermentation back bagasse 80%
Bituminous coal 19%
Urea 1%;
Its manufacture method is with embodiment 1.
Above-described embodiment is described preferred implementation of the present invention; be not that design of the present invention and scope are limited; the present invention relates under the scheme prerequisite not breaking away from; various conspicuous modification and improvement that those skilled in the art make technical scheme of the present invention; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection all is documented in claims.
Claims (5)
1. water purification active carbon made from vegetable waste is characterized in that being made by following raw materials by weight percent composition:
Deep processing waste plant dregs 80-84%
Not deep processing waste plant dregs or bituminous coal 15-19%
Phosphoric acid or zinc chloride or potassium hydroxide or urea 1-5%;
Wherein said deep processing waste plant dregs is one or more in fermentation or reacted furfural dregs or manioc waste or vinasse or bagasse or the stalk; Described not deep processing waste plant dregs is wood chip or bamboo bits;
With the deep processing waste plant dregs through clean, de-iron, go stone to handle after, mix deep processing waste plant dregs, not deep processing waste plant dregs or bituminous coal and phosphoric acid or zinc chloride or potassium hydroxide or urea according to the above ratio successively, be dried to moisture content≤30%, then through the step of extrusion molding, charing, steam activation, powder process, packing at last.
2. the water purification active carbon made from vegetable waste according to claim 1 is characterized in that:
Deep processing waste plant dregs 80%
Not deep processing waste plant dregs or bituminous coal 18%
Phosphoric acid or zinc chloride or potassium hydroxide or urea 2%.
3. the manufacture method of the water purification active carbon made from vegetable waste according to claim 1 and 2, it is characterized in that: with the deep processing waste plant dregs through clean, de-iron, go stone to handle after, mix deep processing waste plant dregs, not deep processing waste plant dregs or bituminous coal and phosphoric acid or zinc chloride or potassium hydroxide or urea according to the above ratio successively, be dried to moisture content≤30%, then through the step of extrusion molding, charing, steam activation, powder process, packing at last.
4. the manufacture method of the water purification active carbon made from vegetable waste according to claim 3, it is characterized in that: carbonization condition is that charring furnace stove tail temperature is controlled at 280-300 ℃ in the charing step, 3～10 ℃/min of heat-up rate, charging capacity is the 4%-10% of body of heater gross space for shared volume in stove, pressure-controlling when charcoal is come out of the stove is at 30～120Pa, 40 rev/mins of charring furnace rotating speeds.
5. the manufacture method of the water purification active carbon made from vegetable waste according to claim 4, it is characterized in that: the steam activation step adopts Si Liepu fixed-bed type activation furnace, the reinforced time be 8 hours reinforced once, the activation furnace discharging time be discharging in 25 minutes once, activation temperature is 850～950 ℃, 1000 ℃～1100 ℃ of regenerator head temperature, and advancing the activation furnace vapor pressure is 0.2 ± 0.02MPa, the activation furnace internal pressure is controlled at 10Pa-50Pa, soak time 20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200710119645A CN100584752C (en) | 2007-07-27 | 2007-07-27 | Water purification active carbon prepared from vegetal castoff and preparation method thereof |
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| CN200710119645A CN100584752C (en) | 2007-07-27 | 2007-07-27 | Water purification active carbon prepared from vegetal castoff and preparation method thereof |
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| CN101121514A CN101121514A (en) | 2008-02-13 |
| CN100584752C true CN100584752C (en) | 2010-01-27 |
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Assignee: Beijing Nuomansibai Environmental Protection Technology Co., Ltd. Assignor: Zou Yan Contract record no.: 2010110000203 Denomination of invention: Water purification active carbon prepared from vegetal castoff and preparation method thereof Granted publication date: 20100127 License type: Exclusive License Open date: 20080213 Record date: 20101116 |