Turn Toxic Waste into Resource with Vetiver and Leachate Tanks

Leachate, the liquid produced when water drains through a landfill, can be a toxic mixture of metals, salts and other chemicals. Without a proper system to handle this waste, it can contaminate ground and surface water. However, there is a way to turn the potential environmental hazard into sustainable resource. Vetiver, a grass native to India, uses the process of phytoremediation to remove contaminants from water. Though inexpensive – with domesticated vetiver being non-invasive – the initial planting to help the plant spread can be tedious. Another process, which involves re-injecting leachate into the landfill before treating it chemically or biologically, is considered more effective but also more expensive. Leachate tanks and neutralization tanks can help make phytoremediation systems easier to maintain and are more cost-effective, providing technology that makes leachate more than just waste.

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