KR20200019315A - 토양세척을 이용한 불소 오염토양의 정화방법 - Google Patents
토양세척을 이용한 불소 오염토양의 정화방법 Download PDFInfo
- Publication number
- KR20200019315A KR20200019315A KR1020180094664A KR20180094664A KR20200019315A KR 20200019315 A KR20200019315 A KR 20200019315A KR 1020180094664 A KR1020180094664 A KR 1020180094664A KR 20180094664 A KR20180094664 A KR 20180094664A KR 20200019315 A KR20200019315 A KR 20200019315A
- Authority
- KR
- South Korea
- Prior art keywords
- soil
- fluorine
- contaminated
- contaminated soil
- underflow
- Prior art date
Links
- 239000002689 soil Substances 0.000 title claims abstract description 157
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000005406 washing Methods 0.000 title claims abstract description 12
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims description 53
- 239000011737 fluorine Substances 0.000 title claims description 53
- 229910052731 fluorine Inorganic materials 0.000 title claims description 53
- 239000010436 fluorite Substances 0.000 claims abstract description 38
- 239000002245 particle Substances 0.000 claims abstract description 32
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 33
- 239000011707 mineral Substances 0.000 claims description 33
- 238000005188 flotation Methods 0.000 claims description 28
- 239000010802 sludge Substances 0.000 claims description 16
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000012216 screening Methods 0.000 description 6
- 238000003900 soil pollution Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 239000011362 coarse particle Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 229910004261 CaF 2 Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000001226 reprecipitation Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000012190 activator Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
시료 | 무게 | 불소농도 |
원 오염토양 | 5,000g | 1,050ppm |
오버플로우 토양 | 1,440g | 2,924ppm |
언더플로우 토양 | 3,560g | 292ppm |
시료 | 무게 | 불소농도 |
부유선별 상부 슬러지 | 310g | 12,261ppm |
부유선별 하부 슬러지 | 1,130g | 363ppm |
Claims (7)
- 형석광물을 함유하는 오염토양을 경도 차이를 이용하여 표면을 파쇄하는 단계;
상기 표면이 파쇄된 오염토양을 입도분리하여, 언더플로우 토양 및 오버플로우 토양으로 구분하는 단계;
상기 언더플로우 토양을 탈수하는 단계; 및
상기 탈수된 언더플로우 토양을 정화토로 배출하는 단계를 포함하는 토양세척을 이용한 불소 오염토양의 정화방법. - 제1항에 있어서, 상기 경도 차이는 상기 형석광물과 상기 형석광물을 제외한 나머지 토양과의 모스경도의 차이인 것을 특징으로 하는 토양세척을 이용한 불소 오염토양의 정화방법.
- 제1항에 있어서, 상기 표면을 파쇄하는 단계는 상기 오염토양에서의 표면마찰을 이용하는 것을 특징으로 하는 토양세척을 이용한 불소 오염토양의 정화방법.
- 제1항에 있어서, 상기 표면을 파쇄하는 단계에 있어서, 고액비가 작고, 체류시간이 길수록 상기 형석광물이 미세한 평균입도를 가지도록 파쇄되는 것을 특징으로 하는 토양세척을 이용한 불소 오염토양의 정화방법.
- 제1항에 있어서, 상기 입도분리는 하이드로 사이클론을 활용하는 것을 특징으로 하는 토양세척을 이용한 불소 오염토양의 정화방법.
- 제1항에 있어서, 상기 오버플로우 토양은 침전과정을 거쳐 부유선별에 의한 하부 슬러지에 의해 고농도 불소함유 슬라임을 분리하는 것을 특징으로 하는 토양세척을 이용한 불소 오염토양의 정화방법.
- 제6항에 있어서, 상기 부유선별에 의한 하부 슬러지는 경도 차이를 이용하여 표면을 파쇄하고, 상기 표면이 파쇄된 오염토양을 입도분리하여 언더플로우 토양 및 오버플로우 토양으로 구분하며, 상기 부유선별에 의해 상기 고농도 불소함유 슬라임으로 분리하는 단계를 더 포함하는 것을 특징으로 하는 토양세척을 이용한 불소 오염토양의 정화방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020180094664A KR20200019315A (ko) | 2018-08-14 | 2018-08-14 | 토양세척을 이용한 불소 오염토양의 정화방법 |
Applications Claiming Priority (1)
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KR1020180094664A KR20200019315A (ko) | 2018-08-14 | 2018-08-14 | 토양세척을 이용한 불소 오염토양의 정화방법 |
Publications (1)
Publication Number | Publication Date |
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KR20200019315A true KR20200019315A (ko) | 2020-02-24 |
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Family Applications (1)
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KR1020180094664A KR20200019315A (ko) | 2018-08-14 | 2018-08-14 | 토양세척을 이용한 불소 오염토양의 정화방법 |
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KR (1) | KR20200019315A (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102241009B1 (ko) | 2020-11-10 | 2021-04-19 | 주식회사 대일이앤씨 | 불소 오염토양 부유선별 방법 및 시스템 |
KR102300117B1 (ko) | 2021-04-26 | 2021-09-09 | 주식회사 대일이앤씨 | 판상광물 부유 기능을 갖는 오염토양 선별 방법 |
-
2018
- 2018-08-14 KR KR1020180094664A patent/KR20200019315A/ko active Search and Examination
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102241009B1 (ko) | 2020-11-10 | 2021-04-19 | 주식회사 대일이앤씨 | 불소 오염토양 부유선별 방법 및 시스템 |
KR102300117B1 (ko) | 2021-04-26 | 2021-09-09 | 주식회사 대일이앤씨 | 판상광물 부유 기능을 갖는 오염토양 선별 방법 |
KR102457070B1 (ko) | 2021-04-26 | 2022-10-24 | 주식회사 대일이앤씨 | 판상광물 부유 기능을 갖는 오염토양 선별 장치 |
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