Land disposal unit
Encyclopedia
A land disposal unit, or LDU, is a site in which hazardous waste
is remedied through natural and man-made processes.
Types of LDUs for hazardous waste disposal (see RCRA Section 3004(k)):
Hazardous waste
A hazardous waste is waste that poses substantial or potential threats to public health or the environment. According to the U.S. environmental laws hazardous wastes fall into two major categories: characteristic wastes and listed wastes.Characteristic hazardous wastes are materials that are known...
is remedied through natural and man-made processes.
Types of LDUs for hazardous waste disposal (see RCRA Section 3004(k)):
- LandfillLandfillA landfill site , is a site for the disposal of waste materials by burial and is the oldest form of waste treatment...
- Surface impoundment
- Waste pile
- Land treatment unitLand treatment unitA land treatment unit is a location in which land is treated, usually through bioremediation processes, to reduce the toxicity of the soil.LTUs are becoming more common as more sites needing clean-up are identified....
- Injection wellInjection wellAn injection well is a vertical pipe in the ground into which water, other liquids, or gases are pumped or allowed to flow.-Waste disposal: One application is waste water disposal, in which treated waste water is injected into the ground between impermeable layers of rocks to avoid polluting fresh...
- Salt dome formation
- Salt bed formation
- Underground mine
- Underground cave