Enhanced phytoremediation of crude oil-contaminated soil using Cynodon dactylon with nutrient and mixed liquid suspended solids amendments.
Moghadam Z, Doraghi M, Fallahizadeh S, Badeenezhad A, Alinehjad N
Phytoremediation
Crude oil spills don't stay at industrial sites — they leach into surrounding soil, groundwater, and eventually the parks, gardens, and farms nearby, and a common lawn grass may be one of the cheapest tools we have to reverse that damage.
When soil gets soaked with crude oil — from spills, leaks, or industrial accidents — it becomes toxic and nearly unusable. Scientists found that Bermuda grass, the tough turf you see on lawns and sports fields everywhere, can actually pull harmful oil compounds out of the soil through its roots. By adding a mix of nutrients and organic solids to the soil alongside the grass, the cleanup process became significantly more effective.
Key Findings
Cynodon dactylon (Bermuda grass) demonstrated measurable crude oil degradation capacity in contaminated soil
Nutrient amendments combined with mixed liquid suspended solids enhanced phytoremediation efficiency compared to unamended controls
The combined amendment approach represents a low-cost, plant-based strategy for petroleum-contaminated site restoration
chevron_right Technical Summary
Researchers tested whether Bermuda grass, aided by added nutrients and liquid suspended solids, could more effectively clean crude oil out of contaminated soil — a process called phytoremediation. The amendments were found to enhance the grass's ability to break down petroleum pollutants.
Species Mentioned
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Cynodon dactylon, commonly known as Bermuda grass or as couch grass in Australia and New Zealand, is a grass found worldwide. It is native to Europe, Africa, Australia, and much of Asia namely Nepal's hilly regions and has been introduced to the Americas.