IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0736749
(2000-12-14)
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발명자
/ 주소 |
- Tremblay, Mario Elmen
- Collias, Dimitris Ioannis
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출원인 / 주소 |
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대리인 / 주소 |
Cummings, T. P.Roof, C. J.Vago, J. C.
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인용정보 |
피인용 횟수 :
8 인용 특허 :
4 |
초록
▼
Disclosed is a method of removing hormone(s) from a liquid, the method comprising contacting the liquid with a filter comprising activated carbon fibers. Also disclosed is an article of manufacture comprising (i) a filter comprising activated carbon fibers and (ii) instructions informing a user that
Disclosed is a method of removing hormone(s) from a liquid, the method comprising contacting the liquid with a filter comprising activated carbon fibers. Also disclosed is an article of manufacture comprising (i) a filter comprising activated carbon fibers and (ii) instructions informing a user that the filter is capable of removing hormone(s) from I.
대표청구항
▼
Disclosed is a method of removing hormone(s) from a liquid, the method comprising contacting the liquid with a filter comprising activated carbon fibers. Also disclosed is an article of manufacture comprising (i) a filter comprising activated carbon fibers and (ii) instructions informing a user that
Disclosed is a method of removing hormone(s) from a liquid, the method comprising contacting the liquid with a filter comprising activated carbon fibers. Also disclosed is an article of manufacture comprising (i) a filter comprising activated carbon fibers and (ii) instructions informing a user that the filter is capable of removing hormone(s) from I. method comprising the steps of: a. conducting at least a portion of the waste stream to a treatment vessel for treatment comprising contact with a first biological population having a first-biological population profile; b. drawing off a portion of the waste stream; c. controlling the drawn-off portion of the waste stream so as to maintain, in the drawn-off portion, a second biological population having a second-biological population profile different from the first-biological population profile such that the returned fraction contains a higher level of cBOD than the waste stream; and d. returning a fraction of the drawn-off portion to the treatment vessel following contact with the second biological population, the returned fraction including a portion of the second biological population. 6. A method of treating a waste stream, the method comprising the steps of: a. conducting at least a portion of the waste stream to a treatment vessel for treatment comprising contact with a first biological population having a first-biological population profile; b. drawing off a portion of the waste stream; c. isolating and controlling the drawn-off portion of the waste stream so as to maintain, in the drawn-off portion, a second biological population having a second-biological population profile different from the first-biological population profile, wherein the controlling step comprises: i. adding, to the drawn-off portion, a quantity of activated sludge to achieve a target suspended solids concentration; Amendment After Final ii. mixing the drawn-off portion without aeration to achieve anaerobic conditions without substantial sulfide generation; and iii. allowing settling to produce a decantable volume having an increased cBOD and ammonia content and a reduced ORP; and d. returning a fraction of the drawn-off portion to the treatment vessel following contact with the second biological population, the returned fraction including a portion of the second biological population, the fraction of the drawn-off portion conducted to the treatment vessel being taken from the decantable volume. 7. The method of claim 6 wherein the drawn-off portion is contained in an offline vessel, the undecanted drawn-off portion being conditioned for re-use by steps comprising: a. adding a portion of the waste stream material to the offline vessel to produce therein a mixture having a second target suspended solids concentration; and b. removing about half of the mixture. 8. The method of claim 7 wherein the second target suspended solids concentration ranges from 7,500 mg/l to 10,000 mg/l. 9. The method of claim 6 wherein the target suspended solids concentration ranges from 3000 to 5000 mg/l. 10. The method of claim 6 wherein the decantable volume is at least 25%. 11. A method of treating a waste stream, the method comprising the steps of: a. conducting at least a portion of the waste stream to a treatment vessel for treatment comprising contact with a first biological population having a first-biological population profile; b. drawing off a portion of the waste stream; c. isolating and controlling the drawn-off portion of the waste stream so as to maintain, in the drawn-off portion, a second biological population having a second-biological population profile different from the first-biological population profile, wherein the controlling step comprises: i. adding, to the drawn-off portion, a quantity of activated sludge to achieve a target suspended solids concentration; ii. mixing the drawn-off portion without aeration to achieve anaerobic conditions without substantial sulfide generation; iii. mixing and aerating until a positive ORP is achieved; iv. mixing without aeration to achieve anaerobic conditions; and v. allowing settling to produce a decantable volume with a higher loading; and d. returning a fraction of the drawn-off portion to the treatment vessel following contact with the second biological population, the returned fraction including a portion of the second biological population, the fraction of the drawn-off portion conducted to the treatment vessel being taken from the decantable volume. 12. The method of claim 11 wherein the undecanted drawn-off portion is re-used by steps comprising: vi. replacing the drawn-off fraction with activated sludge, and adding sufficient waste stream material to achieve a second target suspended solids concentration; and vii. repeating steps (ii) through (v). 13. The method of claim 20 wherein the second target suspended solids concentration is not more than about 7,500 mg/l. 14. The method of claim 12 wherein after about two repetitions of steps (vi) and (vii) the undecanted drawn-off portion is treated according to steps comprising: viii. removing about 1/3 of the undecanted drawn-off portion; and ix. repeating steps (i) through (viii). 15. The method of claim 11 wherein the target suspended solids concentration ranges from about 5,000 mg/l to about 7,500 mg/l. 16. A method of treating a waste stream, the method comprising the steps of: a. conducting at least a portion of the waste stream to a treatment vessel for treatment comprising contact with a first biological population having a first-biological population profile; b. drawing off a portion of the waste stream; c. isolating and controlling the drawn-off portion of the waste stream so as to maintain, in the drawn-off portion, a second biological population having a second-biological population profile different from the first-biological population profile, wherein the controlling step comprises: i. adding, to the drawn-off portion, a quantity of activated sludge to achieve a target suspended solids concentration; ii. mixing the drawn-off portion without aeration to achieve anaerobic conditions without substantial sulfide generation; iii. mixing and aerating until a positive ORP is achieved; iv. mixing without aeration to achieve anaerobic conditions; v. allowing settling to produce a decantable volume; vi. mixing and aerating until a positive ORP is achieved; and vii. allowing settling to produce a decantable volume with a lower loading; and d. returning a fraction of the drawn-off portion to the treatment vessel following contact with the second biological population, the returned fraction including a portion of the second biological population, the fraction of the drawn-off portion conducted to the treatment vessel being taken from the decantable volume. 17. The method of claim 16 wherein the undecanted drawn-off portion is re-used by steps comprising: viii. replacing the drawn-off fraction with activated sludge, and adding sufficient waste stream material to achieve a second target suspended solids concentration; and ix. repeating steps (ii) through (vii). 18. The method of claim 17 wherein the second target suspended solids concentration is not more than about 7,500 mg/l. 19. The method of claim 17 wherein after about two repetitions of steps (viii) and (ix) the undecanted drawn-off portion is treated according to steps comprising: x. removing about 1/3 of the undecanted drawn-off portion; and xi. repeating steps (i) through (x). 20. The method of claim 16 wherein the target suspended solids concentration ranges from about 5,000 mg/l to about 7,500 mg/l. 21. A method of treating a waste stream, the method comprising the steps of: a. conducting at least a portion of the waste stream to a treatment vessel for treatment comprising contact with a first biological population having a first-biological population profile; b. drawing off a portion of the waste stream; c. isolating and controlling the drawn-off portion of the waste stream so as to maintain, in the drawn-off portion, a second biological population having a second-biological population profile different from the first-biological population profile, wherein the controlling step comprises: i. adding, to the drawn-off portion, a qu
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