EP0130773A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Installation and method for containing hazardous waste
Assignee: Rollins Environmental Services Inc
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Filing: 1984-06-25
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Granted: —
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Expires: 2004-06-25
Abstract
Abstract A hazardous waste system (12) for safely containing hazardous waste (14) and monitoring any water or leachates that might exist in the system. The system includes several protective layers (16, 18, 20) for surrounding the hazardous waste, a perimeter wall (24) to minimize any horizontal slippage of the hazardous waste, a cap (26) to protect the hazardous waste from the surface environment, and a support base (28) including an impervious top surface above the ground for providing a barrier between the ground and the hazardous waste.
Inventors
- 👤 Edward Hillier
- 👤 Larry Graybill
- 👤 Richard Winders
- 👤 Dan Bridge
- 👤 Joe Dauchy
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 16:56
CPC Classifications
E; E02; E02D; E02D31/00; E02D31/002; E02D31/004; B; B09; B09B; B09B1/00; E02B; E02B3/00; E02B3/16
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
218 words
An installation (12) for safely containing hazardous waste substances, the installation comprising a first protective layer (16) surrounding the hazardous waste (14); a liner (18) around the protective layer, the liner being substantially impervious to water and to leachates that the hazardous waste might produce; a pervious second protective layer (20) around the liner, top and side portions of the second protective layer providing a pervious infiltration layer around the sides and top of the liner to permit the gravitational flow and run off of any fluids that might enter the pervious infiltration layer; a perimeter support wall (24) about the periphery of the second protective layer to hold in place the layers, liner, and hazardous waste and thereby deter any horizontal slippage of the hazardous waste; a cap (26) over the second protective layer to protect the hazardous waste from the surface environment; a monitoring system (29-32) providing for the gravitational flow and run off of any water and leachates on the cap, in the liner, or in the first and second protective layers; and a support base (28) under the liner, layers, and perimeter support wall means and proximate to the surface of the ground, the support base including an impervious top surface above the ground and providing a barrier between the ground and hazardous waste.
Claim 2
Dependent Claim
218 words
An installation (12) for safely containing hazardous waste substances, the installation comprising a first protective layer (16) surrounding the hazardous waste (14); a liner (18) around the protective layer, the liner being substantially impervious to water and to leachates that the hazardous waste might produce; a pervious second protective layer (20) around the liner, top and side portions of the second protective layer providing a pervious infiltration layer around the sides and top of the liner to permit the gravitational flow and run off of any fluids that might enter the pervious infiltration layer; a perimeter support wall (24) about the periphery of the second protective layer to hold in place the layers, liner, and hazardous waste and thereby deter any horizontal slippage of the hazardous waste; a cap (26) over the second protective layer to protect the hazardous waste from the surface environment; a monitoring system (29-32) providing for the gravitational flow and run off of any water and leachates on the cap, in the liner, or in the first and second protective layers; and a support base (28) under the liner, layers, and perimeter support wall means and proximate to the surface of the ground, the support base including an impervious top surface above the ground and providing a barrier between the ground and hazardous waste.
Claim 3
Dependent Claim
37 words
An installation according to claim 1, wherein the monitoring system includes means (29,34,35,36,27) for collecting and measuring any water and leachates that flow over the cap, or through the liner or the first or second protective layers.
Claim 4
Dependent Claim
24 words
An installation according to claim 1, wherein the monitoring system includes means (34,35,36) for detecting ruptures in the cap (26) or the liner (18).
Claim 5
Dependent Claim
28 words
An installation according to claim 3, wherein the monitoring system includes means (41,42) for determining the approximate location of any detected ruptures in the cap or the liner.
Claim 6
Dependent Claim
18 words
An installation according to claim 4, wherein the monitoring system includes a plurality of radially extending pipes (42).
Claim 7
Dependent Claim
21 words
An installation according to claim 4 or claim 5, wherein the monitoring system includes a plurality of radially extending separators (41).
Claim 8
Dependent Claim
42 words
An installation according to claim 6, wherein the monitoring system includes a plurality of radially extending separators.(41) and a plurality of radially extending pipes (42), the pipes being positioned between adjacent separators and the pipes and separators radiating from a common centre.
Claim 9
Dependent Claim
51 words
An installation according to any one of the preceding claims, wherein the monitoring system includes an outer liner integrity detection system (32) below the second protective layer (20) for collecting and measuring any leachates that flow through the portion of the second protective layer (20) which is below the liner (18).
Claim 10
Dependent Claim
36 words
An installation according to any one of the preceding claims, wherein the monitoring system includes a run off water detection system (29,33,27) for collecting and measuring precipitation that falls on and runs off the cap (26).
Claim 11
Dependent Claim
34 words
An installation according to any one of the preceding claims, wherein the monitoring system includes a cap integrity detection system (30) for collecting and measuring any fluids that flow through the infiltration layer (20).
Claim 12
Dependent Claim
23 words
An installation according to claim 9 or claim 10, wherein at least the upper surface of the cap (26) is impervious to water.
Claim 13
Dependent Claim
37 words
An installation according to any one of the preceding claims, wherein the monitoring system includes an inner liner integrity detection system (31) for collecting and measuring any leachate that flows to the bottom of the liner (18).
Claim 14
Dependent Claim
57 words
An installation according to at least one of claims 8, 9, 10 and 12, wherein the run off water detection system (29,33), the cap integrity detection system (30), the inner liner integrity detection system (31), and/or the outer liner integrity detection system (32) is each arranged to collect water or leachate through gravitational flow and run off.
Claim 15
Dependent Claim
26 words
An installation according to any one of the preceding claims, further comprising a load-bearing structure (70) formed between the cap (26) and the hazardous waste (14).
Claim 16
Dependent Claim
22 words
An installation according to any one of the preceding claims, further comprising an inclined platform (38) formed on the support base (28).
Claim 17
Dependent Claim
24 words
An installation according to any one of the preceding claims, further comprising means (72) for preventing animals from burrowing to or through the liner.
Claim 18
Dependent Claim
20 words
An installation according to any one of the preceding claims, further comprising a vegetation barrier (22,23) over the cap (26).
Claim 19
Dependent Claim
24 words
An installation according to any one of the preceding claims, further comprising solidified, load bearing hazardous waste (14) within the first protective layer (16).
Claim 20
Dependent Claim
87 words
An installation according to at least one of claims 8, 9, 10 and 12 when dependent on claim 4, wherein the run off water detection system (29,33), the cap integrity detection system (30), the inner liner integrity detection system (31), and/or the outer liner integrity detection system (32) each includes a plurality of outlet pipes (33-36,42) spaced about the perimeter of the system and protruding through the wall (24) to provide means for determining the approximate location of the initial source of any fluids collected and measured.
Claim 21
Dependent Claim
29 words
An installation according to any one of the preceding claims, further comprising gas vent means (37) for allowing any generated gases to vent off from the hazardous waste (14).
Claim 22
Independent Claim
221 words
A method of safely containing hazardous waste, the method comprising the steps of forming a support base (28) on or above the ground surface to provide an impervious barrier; forming on the support base a monitoring detection system (29-32) providing for the gravitational flow and run off of leachates and water; forming an outer pervious protective layer (20) over the leachate collection system; placing a liner (18) for the hazardous material on top of the protective layer (20), the liner being impervious to water and leachates that the hazardous waste might produce; forming a inner protective layer (16) about the inner periphery of the liner; placing the solidified hazardous waste (14) within the liner and against the inner protective layer; sealing the liner about the hazardous waste to encapsulate the hazardous waste; forming about the outer periphery of the liner a pervious infiltration layer (20) to permit the gravitational flow and run off of any water or fluids that might enter the pervious infiltration layer; forming about the perimeter of the pervious infiltration layer a perimeter support wall (24) to securely hold the hazardous wastes, layers and liner in place and thereby restrain the horizontal slippage of the hazardous waste; and forming a cap (26) over the infiltration layer and hazardous waste to protect the hazardous waste from the surface environment.
Claim 23
Independent Claim
221 words
A method of safely containing hazardous waste, the method comprising the steps of forming a support base (28) on or above the ground surface to provide an impervious barrier; forming on the support base a monitoring detection system (29-32) providing for the gravitational flow and run off of leachates and water; forming an outer pervious protective layer (20) over the leachate collection system; placing a liner (18) for the hazardous material on top of the protective layer (20), the liner being impervious to water and leachates that the hazardous waste might produce; forming a inner protective layer (16) about the inner periphery of the liner; placing the solidified hazardous waste (14) within the liner and against the inner protective layer; sealing the liner about the hazardous waste to encapsulate the hazardous waste; forming about the outer periphery of the liner a pervious infiltration layer (20) to permit the gravitational flow and run off of any water or fluids that might enter the pervious infiltration layer; forming about the perimeter of the pervious infiltration layer a perimeter support wall (24) to securely hold the hazardous wastes, layers and liner in place and thereby restrain the horizontal slippage of the hazardous waste; and forming a cap (26) over the infiltration layer and hazardous waste to protect the hazardous waste from the surface environment.
Claim 24
Dependent Claim
22 words
A method according to claim 21, further comprising the step of solidifying the hazardous waste by mixing the waste with a fixative.
References Cited (Backward Citations)
No citation records indexed.
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