초록 ▼

Cost-effective processes and tools used therein are described that decontaminate sludge using remedial water in a closed and environmentally friendly system. Typical contaminants such as toxic metals, microorganisms, and toxic compounds are detoxified or destroyed by one or more remedial water treat

Cost-effective processes and tools used therein are described that decontaminate sludge using remedial water in a closed and environmentally friendly system. Typical contaminants such as toxic metals, microorganisms, and toxic compounds are detoxified or destroyed by one or more remedial water treatments to sludge that is confined to the closed system. The closed system may comprise a covered rail road car, ISO container, or other large space into which the remedial water, and optionally, remedial gas, is applied by injection or other means. In a preferred embodiment, water is electrochemically activated at the site of use and injected through an array of pipes within the container. A large variety of other waters and combinations of water, and even air treatments are particularly useful in combination with the closed system for treating sludge. Sludges such as dredged material, human or animal waste, and soils or sediments, are particularly amenable to conversion by the materials and methods of the invention into a more beneficial end use product.

대표청구항 ▼

1. A method of treating dredged material, comprising the steps:(a) placing the dredged material into an ISO container, rail car or other box having a liner and at least one drain for dewatering; (b) closing the container by covering the top of the material with a plastic barrier; (c) dewatering the

1. A method of treating dredged material, comprising the steps:(a) placing the dredged material into an ISO container, rail car or other box having a liner and at least one drain for dewatering; (b) closing the container by covering the top of the material with a plastic barrier; (c) dewatering the material; (d) vertically inserting injector pipes into the dewatered material; (e) injecting remedial water into the material via the injector pipes; (f) closing the container by covering the top of the material with a plastic barrier; and (g) dewatering the material. 2. The method of claim 1, wherein the container is an ISO container, has a depth of between 3 feet and 20 feet, the liner comprises a non-woven geotextile bag that is held from the sides of the container by protuberances on the side walls and the injector pipes extend the dredged material in the container.3. The method of claim 1, wherein the liner is a geomembrane or geosynthetic material covering the inside of the box.4. The method of claim 3, wherein the box is selected from the group consisting of a railcar, hopper car, roll-off container, truck, barge compartment, ISO container, a geotextile lined earthen cell and cave within the earth.5. The method of claim 1, wherein the injector pipes have 100 slot size.6. The method of claim 1, wherein the liner is held off a box wall by round protrusions.7. The method of claim 1, wherein the pipes are perforated.8. The method of claim 1, wherein step a is carried out via an enclosed conveyer belt that provides dewatering.9. The method of claim 8, wherein the enclosed conveyor belt further adds remedial water.10. The method of claim 1, wherein the pipes are stainless steel pipes or PVC pipes.11. The method of claim 1, wherein the box has an area of between 150 square feet and 10,000 square feet and has a depth of between 1 foot and 50 feet.12. The method of claim 1, wherein the box is rectangular.13. The method of claim 1, wherein the remedial water of step e is pushed by a pump located upstream of the remedial water.14. The method of claim 1, wherein the liner has a water impermeable outer surface.15. The method of claim 1, wherein at least one geotextile sock is placed over a drain to minimize release of solids.16. The method of claim 1, further comprising the injection of high pH water to alter the chemical state of a heavy metal.17. The method of claim 1, further comprising the step of transferring the treated material into a transport container.18. The method of claim 17, wherein the transport container is a dump truck, ISO container, dredge hold, barge, or rail road car.19. The method of claim 1, wherein the remedial water comprises at least 250 mg/l of an ion selected from the group consisting of carbonate ion and bicarbonate ion, and wherein at least some of the ion is a free radical.20. The method of claim 1, wherein the remedial water comprises ozone, hydrogen peroxide, active chlorine, active bromine, or a radical formed directly or indirectly from hydroxyl radical.21. The method of claim 1, wherein iron and an oxidant are added to the dredged material.22. The method of claim 21, wherein the oxidant is hydrogen peroxide.23. The method of claim 21, wherein the remedial water comprises ECA water.24. The method of claim 1, wherein the injectors are metallic and produce ECA water by electrical energy.25. The method of claim 24, wherein at least some injectors are aluminum or copper.26. The method of claim 1, wherein at least some of the injectors are water well injection pipes or dewatering well points.27. The method of claim 1, wherein the injectors comprise filtermesh screens fitted to perforated base pipes.28. The method of claim 1, wherein the injectors comprise plastic pipes having slots between {fraction (1/16)} to {fraction (1/14)} inch widths. 29. The method of claim 1, wherein the injectors comprise openings with screening wherein the screening comprises an innermost layer of co-extruded HDPE geonet that provides interior support for a geotextile and the geonet and geotextile are bonded together in a continuous tube.30. The method of claim 1, wherein the injectors comprise continuous slot all welded screens with wrapping wire having a triangular profile that forms inwardly opening slots.31. The method of claim 1, wherein one set of injectors are used to inject water and another set are used to remove water.32. The method of claim 1, wherein the same injectors inject remedial water and remove water during dewatering.33. A method of remediating sludge that contains heavy metal, comprising placing the sludge into an ISO container, rail car or other box having a liner and at least one drain for dewatering;(b) closing the container by covering the top of the sludge with a plastic barrier; (c) dewatering the sludge; (d) vertically inserting injector pipes into the dewatered sludge; (e) injecting remedial water into the sludge via the injector pipes; (f) closing the container by covering the top of the sludge with a plastic barrier; and (g) dewatering the sludge.