CN102921397A - Method for regenerating activated carbon used in water treatment plant through high-energy electron beams - Google Patents
Method for regenerating activated carbon used in water treatment plant through high-energy electron beams Download PDFInfo
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- CN102921397A CN102921397A CN2012104518148A CN201210451814A CN102921397A CN 102921397 A CN102921397 A CN 102921397A CN 2012104518148 A CN2012104518148 A CN 2012104518148A CN 201210451814 A CN201210451814 A CN 201210451814A CN 102921397 A CN102921397 A CN 102921397A
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- active carbon
- activated carbon
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Abstract
The invention discloses a method for regenerating activated carbon used in a water treatment plant through high-energy electron beams. The method includes the following steps: (1) an iodine value measurement method is utilized to judge whether the activated carbon used in the water treatment plant is adsorbed and saturated; (2) at normal temperature and pressure, the activated carbon, which contains moisture and is judged to be adsorbed and saturated in the step (1), undergoes solid-liquid separation; (3) the activated carbon after solid-liquid separation in the step (2) is placed into a ventilating packing bag; (4) the packing bag containing the activated carbon in the step (3) is irradiated under the conditions that the energy of the electron beams is 10MeV, the beam current is 8mA-9mA, and the absorbed dose is 270-330kGy; (5) the iodine value measurement method is utilized to judge whether the regeneration rate of the activated carbon after being irradiated and processed in the step (4) meets required standards. According to the method, the high-energy electron beams are used to irradiate the activated carbon which loses adsorption capacity, regeneration of the activated carbon can be achieved at relatively low cost, and the regeneration rate is higher.
Description
Technical field
The present invention relates to a kind of method of high-power electron beam reused water processing station-service active carbon, belonged to the radiation processing technology field.
Background technology
Active carbon makes it have a wide range of applications in fields such as industry, scientific research, national defence owing to having efficient suction-operated.In recent years, water factory is to also organic matter, pigment, interfacial agent and foul smell etc. in the extensive use charcoal absorption water in the advanced treating of running water.Active carbon in use can lose vigor gradually, finally loses adsorption capacity.Because the regeneration cost of active carbon is higher at present, and regeneration rate neither be too high, therefore the water treatment plant normally will use the active carbon that loses adsorption capacity about 3 years to work as offal treatment, and so not only wasting resource has increased operating cost, and easily causes environmental pollution.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of high-power electron beam reused water processing station-service active carbon, can realize regenerating active carbon by enough relatively cheap costs, and regeneration rate is higher.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of method of high-power electron beam reused water processing station-service active carbon comprises the steps:
(1) utilize the iodine number mensuration to judge whether the water treatment plant has adsorbed saturated with active carbon;
(2) at normal temperatures and pressures, the saturated active carbon that contains moisture has been adsorbed in judgement in the step (1) and carried out Separation of Solid and Liquid;
(3) active carbon of finishing in the step (2) after the Separation of Solid and Liquid is put into ventilative packaging bag;
(4) be 10MeV in beam energy, line is 8mA-9mA, and absorbed dose of radiation is under the condition of 270-330kGy irradiation to be carried out in the packaging bag that is placed with active carbon in the step (3);
(5) utilize the iodine number mensuration to judge whether the regeneration rate through the active carbon after the irradiation processing in the step (4) reaches the requirement standard.
The method of aforesaid high-power electron beam reused water processing station-service active carbon is characterized in that: utilize the industrial vibration sieve that the active carbon that contains moisture is carried out nature in the step (2) and dewater.
The method of aforesaid high energy electron beam reused water processing station-service active carbon is characterized in that: the electron beam line is preferably 9mA in the step (4), and absorbed dose of radiation is preferably 300kGy.
The invention has the beneficial effects as follows: the active carbon that loses adsorption capacity by high-energy electron beam irradiation, can make active carbon obtain regeneration, realized the recycling of resource, and by under normal pressure commonly used, wet active carbon of filtering being carried out Separation of Solid and Liquid, active carbon after the Separation of Solid and Liquid is put into ventilating packaging bag carry out irradiation, greatly reduce regeneration cost, regeneration rate is high, technique is simple, and boundless application prospect is arranged.
The specific embodiment
Below in conjunction with the specific embodiment, the present invention is further illustrated.
A kind of method of high energy electron beam reused water processing station-service active carbon comprises the steps:
(1) utilize the iodine number mensuration to judge whether the water treatment plant has adsorbed saturated with active carbon;
(2) at normal temperatures and pressures, the saturated active carbon that contains moisture has been adsorbed in judgement in the step (1) carried out Separation of Solid and Liquid, avoid because level residual on the active carbon causes the later stage during irradiation too much, a large amount of irradiation energies are absorbed by water, affect the irradiation effect of active carbon;
(3) active carbon of finishing in the step (2) after the Separation of Solid and Liquid is put into ventilative packaging bag, the organic matter that will be adsorbed in the time of can not only satisfying irradiation on the active carbon is got rid of, also substantially realized simultaneously the isolation with active carbon and outside air, avoid active carbon organic matter in the absorbed air etc. again by high-energy electron beam irradiation the time, affect the irradiation effect, with respect to the processing atmosphere gas that adopts the gases such as oxygen, nitrogen as active carbon, greatly reduce cost, be conducive to of the present invention applying.
(4) be 10MeV in beam energy, line is 8mA-9mA, and absorbed dose of radiation is under the condition of 270-330kGy irradiation to be carried out in the packaging bag that is placed with active carbon in the step (3), because the dosage grain of the high-power electron beam of 10MeV is high, penetration capacity is strong, has improved treatment effeciency and treatment effect.
(5) utilize the iodine number mensuration to judge whether the regeneration rate through the active carbon after the irradiation processing in the step (4) reaches the requirement standard.
Wherein, utilize industrial vibration sieve that the active carbon that contains moisture is carried out nature in the step (2) and dewater, Separation of Solid and Liquid that can not only active carbon, and also cost is lower.
The electron beam line is preferably 9mA in the step (4), and absorbed dose of radiation is preferably 300kGy, can make the irradiation better effects if, and the regeneration rate of active carbon is higher, generally can reach more than 90%.
In sum, the method for a kind of high-power electron beam reused water processing station-service active carbon provided by the invention can realize regenerating active carbon by enough relatively cheap costs, and regeneration rate is higher.
Above demonstration and described basic principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is by appending claims and equivalent circle thereof.
Claims (3)
1. the method for a high-power electron beam reused water processing station-service active carbon is characterized in that: comprise the steps:
(1) utilize the iodine number mensuration to judge whether the water treatment plant has adsorbed saturated with active carbon;
(2) at normal temperatures and pressures, the saturated active carbon that contains moisture has been adsorbed in judgement in the step (1) and carried out Separation of Solid and Liquid;
(3) active carbon of finishing in the step (2) after the Separation of Solid and Liquid is put into ventilative packaging bag;
(4) be 10MeV in beam energy, line is 8mA-9mA, and absorbed dose of radiation is under the condition of 270-330kGy irradiation to be carried out in the packaging bag that is placed with active carbon in the step (3);
(5) utilize the iodine number mensuration to judge whether the regeneration rate through the active carbon after the irradiation processing in the step (4) reaches the requirement standard.
2. the method for high energy electron beam reused water processing station-service active carbon according to claim 1 is characterized in that: utilize the industrial vibration sieve that the active carbon that contains moisture is carried out nature in the step (2) and dewater.
3. the method for high energy electron beam reused water processing station-service active carbon according to claim 1 and 2 is characterized in that: the electron beam line is preferably 9mA in the step (4), and dosage is preferably 300kGy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104518148A CN102921397A (en) | 2012-11-13 | 2012-11-13 | Method for regenerating activated carbon used in water treatment plant through high-energy electron beams |
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| CN2012104518148A CN102921397A (en) | 2012-11-13 | 2012-11-13 | Method for regenerating activated carbon used in water treatment plant through high-energy electron beams |
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| CN102921397A true CN102921397A (en) | 2013-02-13 |
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| CN2012104518148A Pending CN102921397A (en) | 2012-11-13 | 2012-11-13 | Method for regenerating activated carbon used in water treatment plant through high-energy electron beams |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110813267A (en) * | 2019-11-01 | 2020-02-21 | 中国科学院福建物质结构研究所 | Regeneration method of porous adsorption material |
-
2012
- 2012-11-13 CN CN2012104518148A patent/CN102921397A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 朱光华等: "电子束辐照使活性炭再生的研究", 《辐射研究与辐射工艺学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110813267A (en) * | 2019-11-01 | 2020-02-21 | 中国科学院福建物质结构研究所 | Regeneration method of porous adsorption material |
| CN110813267B (en) * | 2019-11-01 | 2021-04-02 | 中国科学院福建物质结构研究所 | Regeneration method of porous adsorption material |
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Application publication date: 20130213 |