WO1993001899A1 - System for in-situ treatment of underwater contaminated material - Google Patents
System for in-situ treatment of underwater contaminated material Download PDFInfo
- Publication number
- WO1993001899A1 WO1993001899A1 PCT/US1992/006016 US9206016W WO9301899A1 WO 1993001899 A1 WO1993001899 A1 WO 1993001899A1 US 9206016 W US9206016 W US 9206016W WO 9301899 A1 WO9301899 A1 WO 9301899A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- casing
- treatment
- contaminated material
- confinement
- mixing
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
- E21B3/04—Rotary tables
- E21B3/045—Rotary tables movably mounted on the drilling structure or platform
Definitions
- Sequential, sectional treatment of confined treatable portions of the submerged bottom of water bodies is effected by lowering a large square casing into the contaminated material such as sedimentary silt, sludge, hazardous waste or other contaminated material, which has settled at the bottom of the water body.
- the depth where the bottom edge of the square casing reaches a required penetration may involve a register and seal against a solid subsurface such as rock, or into an impervious clay layer or a specific elevation.
- the top of the casing should extend above the water elevation enough to allow holding it in place and also not to allow water to move into or out of the casing.
- a top confinement cover shroud with a rotary Kelly bar projecting therethrough is lowered within the square casing, with substantial perimeter clearance, through the water down to a level abutting, or closely adjacent the top surface of the contaminated material.
- the water passes gently between the casing as the shroud is lowered to required position at which position an inflatable perimeter tube is expanded with a fluid, in most cases water, into sealing contact with the inner walls of the square casing to thereby provide a pressure seal with complete confinement for a discrete portion of the contaminated material to be treated.
- a rotary blade at the bottom end of the Kelly bar system having fluid passages extending to discharge ends is supplied with fluid treating material which, through rotation of the blade, is distributed and mixed throughout the confined portion of contaminated material.
- the treatment material may be a cement and flyash slurry which will set and harden over a period of hours to thereby encapsulate and render harmless the contaminated material.
- the square casing is lowered and raised by a crane on land reaching out over the water; or as more practical in most cases, the process will be performed by a crane mounted on a floating barge secured by corner jacks engaging a solid bottom of the water body.
- the crane is mounted on a mobile tractor movable along the edge of the barge to successive positions for sequential overlapping treatment of successively isolated and confined portions of the contaminated material, upon completing treatment at successive sections along the entire length of the barge, the jacks are raised and the barge moved to a position for treating the next row of square portions of the contaminated material.
- Maximum coverage with minimum number of successive treatment positions can be accomplished by employing large casings, e.g., in the order of fourteen feet square side dimension covering an area of almost two hundred square feet per treatment site.
- the confinement of discrete portions of the contaminated material during administration of the treatment fluid provides an accurate control for the ratio of fluid injected and thoroughly mixed per predetermined volume of contaminated material.
- Fig. 1 is a perspective schematic view of typical water site process equipment for treatment of a contaminated material bottom
- Fig. 1A is a schematic side elevation of the equipment shown in Fig. 1;
- Fig. 2 is a fragmentary perspective view illustrating the treatment end of casing wth closure cover shroud and mixing tool in place;
- Fig. 3 is a plan view of the mixing tool per se;
- Fig. 4 is a side elevation of the mixing tool shown in Fig. 3;
- Fig. 5 is a sectional view taken along the line 5-5 of Fig. 3;
- Fig.6 is a sectional view of the enclosure confinement cover shroud illustrated in Fig. 2; and
- Fig. 7 is a fragmentary schematic view illustrating sectionalized treated portions of contaminated material at the bottom of a water body.
- a representative project for the practice of the present invention involves the treatment of sedimentary silt, sludge, hazardous waste or other loose contaminated material 10, which has settled at the bottom of a canal, extending to an upper level 11 at the bottom of canal water 12, retained within vertical canal walls 13.
- Barge 14 typically of modular float design such as commercially available, is anchored with jack spuds 15 and carries mobile crane 16 with crawler drive 17 for incremental movement to successive locations along the edge of the barge.
- Cantelevered drive unit 18 for Kelly bar 19 extends below suspension bridle 20 for lowering and raising square casing 21 to and from underbed 22 of the contaminated material 10.
- Casing guide 23 mounted under template 24 is slidable along guide rails 25 and stabilized by guide rail 26 while moved by cable drive means, not shown, synchronized with crane 16 to each location as indicated by checkerboard squares superimposed on upper level 11.
- the lower end of casing 21 preferably constructed of fiberglass, is provided with steel extension 27 suitably connected, as by rivets or bolts 28, with a lower edge 29 sharpened to facilitate penetration.
- cover shroud 31 normally resting during vertical transit on top of mixing blade 32, secured to the lower end of Kelly bar 19.
- Laterally extending shoes 33 mounted on cover shroud 31 engage the inner casing wall to guide movement of the shroud.
- Inflatable bladder 34 extending around the perimeter of cover shroud is deflated during vertical movement permitting water to pass through substantial clearance 35, as best illustrated in Fig.6, which may be in the order of six inches in a fourteen foot square casing.
- bladder 34 When the shroud has reached a confining position on top of or adjacent the loose material to be treated, bladder 34 is inflated with fluid fed through tube 36 to engage against the casing wall to seal and retain the cover in treatment position whereupon Kelly bar 19 may be further lowered through rotary bearing 37 to a discharge and mixing position, such as illustrated in Fig. 2.
- Treatment material is pumped through the Kelly bar system from a supply truck 38, pumping stations 39 and 40 and supply line 41.
- Such treatment material typically cement and flyash, is discharged through ends 42 of mixing blade 32 driven by Kelly bar 19 through gearing 43 on the cantelevered drive system 18 mounted on crane 16.
- a suitable pressure release valve 44 accommodates overflow of confined material from intrusion of treating material introduced through the Kelly bar.
- the barge When an entire row of treatment sites has been completed, the barge may be moved laterally to a position for treating the next row of locations.
- Each location may involve a cycle time in the order of one half hour to forty-five minutes, when employing a fourteen foot square casing, in treating a depth of four to twelve feet of sediment at the bottom of a twenty foot deep water level, as a typical example.
- the treated sediment which will require four to forty-eight hours to harden, is released from casing confinement each time the casing is raised.
- the ratio of treatment material is established while the casing is in place and will not be substantially affected by removal of the casing due to retention of each treated portion of sediment by surrounding treated or untreated substantially static material.
- the thorough mixing effected by the rotary blade results in coating the sediment with treatment -mater ial , which upon eventual hardening, effectively suppresses the contamination.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5502997A JPH06501881A (en) | 1991-07-25 | 1992-07-20 | Equipment for on-site treatment of water pollutants |
NO93931082A NO931082L (en) | 1991-07-25 | 1993-03-24 | DEVICE FOR TREATMENT IN THE SITE OF POLLUTANTS UNDER WATER |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US735,849 | 1976-10-26 | ||
US07/735,849 US5127765A (en) | 1991-07-25 | 1991-07-25 | System for in-situ treatment of underwater contaminated material |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993001899A1 true WO1993001899A1 (en) | 1993-02-04 |
Family
ID=24957450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1992/006016 WO1993001899A1 (en) | 1991-07-25 | 1992-07-20 | System for in-situ treatment of underwater contaminated material |
Country Status (6)
Country | Link |
---|---|
US (1) | US5127765A (en) |
EP (1) | EP0551487A4 (en) |
JP (1) | JPH06501881A (en) |
CA (1) | CA2092415A1 (en) |
PT (1) | PT100728A (en) |
WO (1) | WO1993001899A1 (en) |
Cited By (1)
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WO2001066275A2 (en) * | 2000-03-06 | 2001-09-13 | Aquablok, Ltd. | Composite particles and methods of their use |
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US5256001A (en) * | 1993-01-28 | 1993-10-26 | Millgard Environmental Corporation | Cylindrical system for in-situ treatment of underwater contaminated material |
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US20030185633A1 (en) * | 2002-03-29 | 2003-10-02 | Stefaan Vandycke | Process for immobilizing impurities present in silt |
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CA3113853A1 (en) | 2018-09-27 | 2020-04-02 | Abydoz Environmental Inc. | Apparatus for in-situ reconditioning of a media used in an effluent treatment bed |
CN113152373B (en) * | 2021-03-24 | 2022-10-21 | 重庆水利电力职业技术学院 | Bottom mud covering device for blocking and treating river water source pollution |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1089184A (en) * | 1913-09-18 | 1914-03-03 | Robert H Bolen | Mold for forming sunken concrete structures. |
US1856604A (en) * | 1931-05-28 | 1932-05-03 | Raymond Concrete Pile Co | Method and apparatus for forming piles |
US4072016A (en) * | 1976-11-17 | 1978-02-07 | Kiyoshi Seki | Method of reconstructing and reclamation of river channels |
US4072017A (en) * | 1974-10-11 | 1978-02-07 | Hisashi Shiraki | Treating soil |
US4084383A (en) * | 1976-11-26 | 1978-04-18 | Takenaka Komuten Co., Ltd. | Apparatus and method for multiple spindle kneading for improving ground |
GB2079345A (en) * | 1980-07-04 | 1982-01-20 | Takenaka Komuten Co | Apparatus for treating poor subsoil |
US4402630A (en) * | 1982-03-08 | 1983-09-06 | Takenaka Komuten Co., Ltd. | Machine for and method of hardening soft ground |
US4566825A (en) * | 1984-03-21 | 1986-01-28 | Toa Harbor Works Co., Ltd. | Method of hardening soft ground |
US4643617A (en) * | 1984-05-14 | 1987-02-17 | Takenaka Kohmuten Co., Lt. | Method of creating offshore seabed mound |
US4776409A (en) * | 1984-09-04 | 1988-10-11 | Manchak Frank | Insitu waste impoundment treating apparatus and method of using same |
JPH0197717A (en) * | 1987-10-09 | 1989-04-17 | Taisei Shoji Kk | Soil column-line construction work |
US4834194A (en) * | 1987-11-13 | 1989-05-30 | Manchak Frank | Method and apparatus for detection of volatile soil contaminants in situ |
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DE1993906U (en) * | 1968-04-19 | 1968-09-19 | Delmag Maschinenfabrik | EARTH DRILL. |
JPS6020530B2 (en) * | 1976-02-02 | 1985-05-22 | 株式会社竹中工務店 | Ground improvement method |
JPS63122816A (en) * | 1986-11-11 | 1988-05-26 | Shiro Yamaguchi | Treating of sludge |
-
1991
- 1991-07-25 US US07/735,849 patent/US5127765A/en not_active Expired - Fee Related
-
1992
- 1992-07-20 CA CA002092415A patent/CA2092415A1/en not_active Abandoned
- 1992-07-20 JP JP5502997A patent/JPH06501881A/en active Pending
- 1992-07-20 WO PCT/US1992/006016 patent/WO1993001899A1/en not_active Application Discontinuation
- 1992-07-20 EP EP19920916846 patent/EP0551487A4/en not_active Withdrawn
- 1992-07-24 PT PT100728A patent/PT100728A/en not_active Application Discontinuation
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1089184A (en) * | 1913-09-18 | 1914-03-03 | Robert H Bolen | Mold for forming sunken concrete structures. |
US1856604A (en) * | 1931-05-28 | 1932-05-03 | Raymond Concrete Pile Co | Method and apparatus for forming piles |
US4072017A (en) * | 1974-10-11 | 1978-02-07 | Hisashi Shiraki | Treating soil |
US4072016A (en) * | 1976-11-17 | 1978-02-07 | Kiyoshi Seki | Method of reconstructing and reclamation of river channels |
US4084383A (en) * | 1976-11-26 | 1978-04-18 | Takenaka Komuten Co., Ltd. | Apparatus and method for multiple spindle kneading for improving ground |
GB2079345A (en) * | 1980-07-04 | 1982-01-20 | Takenaka Komuten Co | Apparatus for treating poor subsoil |
US4402630A (en) * | 1982-03-08 | 1983-09-06 | Takenaka Komuten Co., Ltd. | Machine for and method of hardening soft ground |
US4566825A (en) * | 1984-03-21 | 1986-01-28 | Toa Harbor Works Co., Ltd. | Method of hardening soft ground |
US4643617A (en) * | 1984-05-14 | 1987-02-17 | Takenaka Kohmuten Co., Lt. | Method of creating offshore seabed mound |
US4776409A (en) * | 1984-09-04 | 1988-10-11 | Manchak Frank | Insitu waste impoundment treating apparatus and method of using same |
JPH0197717A (en) * | 1987-10-09 | 1989-04-17 | Taisei Shoji Kk | Soil column-line construction work |
US4834194A (en) * | 1987-11-13 | 1989-05-30 | Manchak Frank | Method and apparatus for detection of volatile soil contaminants in situ |
US4834194C1 (en) * | 1987-11-13 | 2002-09-03 | Manchak Frank | Method and apparatus for detection of volatile soil contaminants in situ |
Non-Patent Citations (1)
Title |
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See also references of EP0551487A4 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001066275A2 (en) * | 2000-03-06 | 2001-09-13 | Aquablok, Ltd. | Composite particles and methods of their use |
WO2001066275A3 (en) * | 2000-03-06 | 2002-02-14 | Aquablok Ltd | Composite particles and methods of their use |
EP1710025A2 (en) * | 2000-03-06 | 2006-10-11 | Aquablok, Ltd. | Method of creating a seal in a subsurface environment |
EP1710025A3 (en) * | 2000-03-06 | 2007-02-28 | Aquablok, Ltd. | Method of creating a seal in a subsurface environment |
Also Published As
Publication number | Publication date |
---|---|
JPH06501881A (en) | 1994-03-03 |
CA2092415A1 (en) | 1993-01-26 |
US5127765A (en) | 1992-07-07 |
EP0551487A4 (en) | 1993-12-29 |
EP0551487A1 (en) | 1993-07-21 |
PT100728A (en) | 1994-05-31 |
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