CN101049986A - Preparing tea powder for treating waste water polluted by polycyclic aromatic hydrocarbon, and method of application - Google Patents
Preparing tea powder for treating waste water polluted by polycyclic aromatic hydrocarbon, and method of application Download PDFInfo
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- CN101049986A CN101049986A CN 200710067687 CN200710067687A CN101049986A CN 101049986 A CN101049986 A CN 101049986A CN 200710067687 CN200710067687 CN 200710067687 CN 200710067687 A CN200710067687 A CN 200710067687A CN 101049986 A CN101049986 A CN 101049986A
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Abstract
This invention discloses a method for preparing and utilizing tealeaf powder for treating wastewater polluted by polycyclic aromatic hydrocarbons. The method comprises: (1) collecting tea residues or old tealeaves, soaking in 80-90 deg.C water bath for 48 h, and washing with tap water for 3 times to remove the water-soluble ingredients; (2) air-drying the treated tealeaves at room temperature, placing in an oven, and baking at 110-120 deg.C for 3-4 h; (3) grinding the baked tealeaves, and sieving with 10-100 mesh sieve to obtain tealeaf powder; (4) adding the tealeaf powder into wastewater polluted by polycyclic aromatic hydrocarbons (0.1-5 g/L), mixing uniformly, and vibrating for more than 24 h to remove polycyclic aromatic hydrocarbons. The method is simple. The prepared tealeaf powder has a good treatment effect on wastewater polluted by polycyclic aromatic hydrocarbons.
Description
Technical field
The present invention relates to a kind of tea-leaf power preparation and using method of handling waste water polluted by polycyclic aromatic hydrocarbon.
Background technology
China's shortage of water resources, water pollution especially organic contamination are on the rise.Though biochemical treatment process commonly used can reduce COD amount in the waste water largely in the municipal sewage treatment, covered the harm of material that " three causes (carcinogenic, teratogenesis shape, mutagenesis) " such as polycyclic aromatic hydrocarbons wherein or highly toxic substance to ecology.For these lower concentrations, difficult biochemical pollutent generally is to remove by technologies such as coagulating sedimentation, chemical oxidations.Coagulating sedimentation is relatively poor to deliquescent Persistent organic pollutants removal effect; Chemical oxidation has selectivity to hardly degraded organic substance, and the processing cost height, is not suitable for handling the town sewage that has a large capacity and a wide range.Therefore, the adsorption treatment method of Persistent organic pollutants has been subjected to various countries environmentalists' extensive concern too in the sewage.Absorption method is to remove the effective ways of Persistent organic pollutants, and wherein most critical is the exploitation high-efficiency adsorbent.
Tealeaves is one of soft drink of global consumption maximum, and a year consumption can reach more than 300 ten thousand tons.Tea grounds after making tea is generally included domestic refuse in and is handled.In addition, every year all need be repeatedly pruned tea tree in the tea place, and the tealeaves of pruning is often discarded by the tea grower based on Lao Ye.These depleted tea grounds and Lao Ye not only cause environmental pollution easily, also are a kind of wastings of resources.Studies show that pore is many in the tealeaves, surface-area is big, can absorb peculiar smell, stink, can be used as reodorant and uses.Organic carbon content height in the tealeaves, generally greater than 50%, in theory should strong adsorption organic pollutant, especially those fat-soluble big persistence organic pollutants.Given this, the present invention has developed the persistence toxic organic pollutants such as polycyclic aromatic hydrocarbons that a kind of tea-leaf power is used for adsorption treatment waste water.
Summary of the invention
The purpose of this invention is to provide a kind of tea-leaf power preparation and using method of handling waste water polluted by polycyclic aromatic hydrocarbon.
The preparation method of tea-leaf power capable of handling waste water polluted by polycyclic aromatic hydrocarbon comprises the steps:
1) collect tea grounds or tea tree ' s old leaf, be placed in 80～90 ℃ the water bath with thermostatic control and soak more than 48 hours, and then with the tap water flushing more than 3 times, to remove water soluble component in the tealeaves;
2) will after at room temperature drying, the tea grounds of above-mentioned processing or tea tree ' s old leaf put into baking oven, 110～120 ℃ of bakings 3-4 hour down;
3) tea grounds after will drying or tea tree ' s old leaf 10～100 mesh sieves of milling obtain tea-leaf power.
The tea-leaf power using method of handling waste water polluted by polycyclic aromatic hydrocarbon is: the mass volume ratio by 0.1～5g/L adds tea-leaf power in the waste water polluted by polycyclic aromatic hydrocarbon, and the mixing vibration can effectively be removed the polycyclic aromatic hydrocarbons in the waste water more than 24 hours under the room temperature.
Making method of the present invention is simple, raw materials used is depleted tea grounds or tea tree ' s old leaf, belong to recycling of waste resources, the tea-leaf power that makes is good to the treatment effect of polycyclic aromatic hydrocarbons, can promote the use of in poisonous organic pollution field of waste water treatment such as polycyclic aromatic hydrocarbons.
Embodiment
Embodiment 1
1) collect dragon well green tea tea grounds after making tea, be placed in 80 ℃ the water bath with thermostatic control and soaked 48 hours, and then with tap water flushing 3 times, to remove water soluble component in the tealeaves;
2) will at room temperature dry through the tea grounds of above-mentioned processing after, put into baking oven, 110 ℃ of down bakings 3 hours;
3) 10 mesh sieves of milling of the tealeaves after will drying make tea-leaf power;
4) take by weighing the above-mentioned tea-leaf power of 50mg and put into the centrifuge tube that 10mL concentration is the aqueous solution of 0.8mg/L phenanthrene is housed, after lid is tight, centrifuge tube is placed in the vibrator, vibration is 24 hours under the room temperature, centrifugal then elimination tea-leaf power, the concentration of mensuration supernatant liquor China and Philippines, calculating luxuriant and rich with fragrance clearance is 96%.
Embodiment 2
1) collect dragon well green tea tea grounds after making tea, be placed in 90 ℃ the water bath with thermostatic control and soaked 48 hours, and then with tap water flushing 3 times, to remove water soluble component in the tealeaves;
2) will at room temperature dry through the tea grounds of above-mentioned processing after, put into baking oven, 120 ℃ of down bakings 4 hours;
3) 100 mesh sieves of milling of the tealeaves after will drying make tea-leaf power;
4) take by weighing the above-mentioned tea-leaf power of 1mg and put into the centrifuge tube that 10mL concentration is the aqueous solution of 0.8mg/L phenanthrene is housed, after lid is tight, centrifuge tube is placed in the vibrator, vibration is 24 hours under the room temperature, centrifugal then elimination tea-leaf power, the concentration of mensuration supernatant liquor China and Philippines calculates luxuriant and rich with fragrance clearance and reaches 80%.
Embodiment 3
1) in the dragon well green tea tea place, collect to prune back depleted tea tree ' s old leaf, be placed in 90 ℃ the water bath with thermostatic control and soaked 48 hours, and then with tap water flushing 3 times, to remove water soluble component in the tealeaves;
2) will at room temperature dry through the tealeaves of above-mentioned processing after, put into baking oven, 120 ℃ of down bakings 4 hours;
3) 100 mesh sieves of milling of the tealeaves after will drying make tea-leaf power;
4) take by weighing the above-mentioned tea-leaf power of 1mg and put into the centrifuge tube that 10mL concentration is the aqueous solution of 0.8mg/L phenanthrene is housed, after lid is tight, centrifuge tube is placed in the vibrator, vibration is 24 hours under the room temperature, centrifugal then elimination tea-leaf power, the concentration of mensuration supernatant liquor China and Philippines calculates luxuriant and rich with fragrance clearance and reaches 85%.
Embodiment 4
1) in the dragon well green tea tea place, collect to prune back depleted tea tree ' s old leaf, be placed in 80 ℃ the water bath with thermostatic control and soaked 48 hours, and then with tap water flushing 3 times, to remove water soluble component in the tealeaves;
2) will at room temperature dry through the tealeaves of above-mentioned processing after, put into baking oven, 110 ℃ of down bakings 3 hours;
3) 10 mesh sieves of milling of the tealeaves after will drying make tea-leaf power;
4) take by weighing the above-mentioned tea-leaf power of 50mg and put into the centrifuge tube that 10mL concentration is the luxuriant and rich with fragrance aqueous solution of 0.8mg/L is housed, after lid is tight, centrifuge tube is placed in the vibrator, vibration is 24 hours under the room temperature, centrifugal then elimination tea-leaf power, the concentration of mensuration supernatant liquor China and Philippines calculates luxuriant and rich with fragrance clearance and reaches 98%.
Embodiment 5
1) in the dragon well green tea tea place, collect to prune back depleted tea tree ' s old leaf, be placed in 80 ℃ the water bath with thermostatic control and soaked 48 hours, and then with tap water flushing 3 times, to remove water soluble component in the tealeaves;
2) will at room temperature dry through the tealeaves of above-mentioned processing after, put into baking oven, 110 ℃ of down bakings 3 hours;
3) 10 mesh sieves of milling of the tealeaves after will drying make tea-leaf power;
4) take by weighing the above-mentioned tea-leaf power of 10mg and put into the centrifuge tube that 10mL concentration is the aqueous solution of 0.8mg/L phenanthrene is housed, after lid is tight, centrifuge tube is placed in the vibrator, vibration is 24 hours under the room temperature, centrifugal then elimination tea-leaf power, the concentration of mensuration supernatant liquor China and Philippines calculates luxuriant and rich with fragrance clearance and reaches 95%.
Embodiment 6
1) collect dragon well green tea tea grounds after making tea, be placed in 90 ℃ the water bath with thermostatic control and soaked 48 hours, and then with tap water flushing 3 times, to remove water soluble component in the tealeaves;
2) will at room temperature dry through the tea grounds of above-mentioned processing after, put into baking oven, 120 ℃ of down bakings 4 hours;
3) 100 mesh sieves of milling of the tealeaves after will drying make tea-leaf power;
4) take by weighing the above-mentioned tea-leaf power of 10mg and put into the centrifuge tube that 10mL concentration is the aqueous solution of 0.8mg/L phenanthrene is housed, after lid is tight, centrifuge tube is placed in the vibrator, vibration is 24 hours under the room temperature, centrifugal then elimination tea-leaf power, the concentration of mensuration supernatant liquor China and Philippines calculates luxuriant and rich with fragrance clearance and reaches 90%.
Claims (2)
1. a preparation method of tea-leaf power capable of handling waste water polluted by polycyclic aromatic hydrocarbon is characterized in that comprising the steps:
1) collect tea grounds or tea tree ' s old leaf, be placed in 80～90 ℃ the water bath with thermostatic control and soak more than 48 hours, and then with the tap water flushing more than 3 times, to remove water soluble component in the tealeaves;
2) will after at room temperature drying, the tea grounds of above-mentioned processing or tea tree ' s old leaf put into baking oven, 110～120 ℃ of bakings 3-4 hour down;
3) tea grounds after will drying or tea tree ' s old leaf 10～100 mesh sieves of milling obtain tea-leaf power.
2. tea-leaf power using method of the processing waste water polluted by polycyclic aromatic hydrocarbon of method preparation according to claim 1, it is characterized in that: the mass volume ratio by 0.1～5g/L adds tea-leaf power in the waste water polluted by polycyclic aromatic hydrocarbon, the mixing vibration can effectively be removed the polycyclic aromatic hydrocarbons in the waste water more than 24 hours under the room temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100676870A CN100439256C (en) | 2007-03-29 | 2007-03-29 | Preparing tea powder for treating waste water polluted by polycyclic aromatic hydrocarbon, and method of application |
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| CNB2007100676870A CN100439256C (en) | 2007-03-29 | 2007-03-29 | Preparing tea powder for treating waste water polluted by polycyclic aromatic hydrocarbon, and method of application |
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| CN101049986A true CN101049986A (en) | 2007-10-10 |
| CN100439256C CN100439256C (en) | 2008-12-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295370A (en) * | 2011-08-16 | 2011-12-28 | 北京市环境保护科学研究院 | Treating system and method for waste liquid generated in washing of soil polluted by polycyclic aromatic hydrocarbons |
| CN108275839A (en) * | 2018-02-02 | 2018-07-13 | 回音必集团安徽制药有限公司 | A kind of novel pharmacy sewage processing method |
| CN108620035A (en) * | 2018-05-24 | 2018-10-09 | 中国工程物理研究院材料研究所 | A kind of the removal adsorbent and its application process of nucleic uranium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6241893B1 (en) * | 1994-06-17 | 2001-06-05 | Ehud Levy | Water filtration media, apparatus and processes |
| JP2001170620A (en) * | 1999-12-21 | 2001-06-26 | Yosuke Naito | Desk top type water cleaner |
| JP4363128B2 (en) * | 2003-09-02 | 2009-11-11 | 三浦工業株式会社 | Water treatment method |
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2007
- 2007-03-29 CN CNB2007100676870A patent/CN100439256C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295370A (en) * | 2011-08-16 | 2011-12-28 | 北京市环境保护科学研究院 | Treating system and method for waste liquid generated in washing of soil polluted by polycyclic aromatic hydrocarbons |
| CN108275839A (en) * | 2018-02-02 | 2018-07-13 | 回音必集团安徽制药有限公司 | A kind of novel pharmacy sewage processing method |
| CN108620035A (en) * | 2018-05-24 | 2018-10-09 | 中国工程物理研究院材料研究所 | A kind of the removal adsorbent and its application process of nucleic uranium |
| CN108620035B (en) * | 2018-05-24 | 2020-09-18 | 中国工程物理研究院材料研究所 | Nuclide uranium removal adsorbent and application method thereof |
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| CN100439256C (en) | 2008-12-03 |
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