Enhanced phytoremediation of crude oil-contaminated soils through zeolite and Pseudomonas aeruginosa RS6 with Parthenium hysterophorus.
Auwalu A, Uddin MK, Roslan AM, Zakaria MR
Phytoremediation
That weedy, white-flowered plant taking over disturbed roadsides and vacant lots near you — parthenium weed — turns out to be a surprisingly capable partner in pulling toxic petroleum out of contaminated soil when paired with the right microbes and minerals.
Researchers found that a fast-growing weed called parthenium, combined with a soil bacterium that eats oil and a mineral called zeolite, removed 85% of petroleum pollution from contaminated soil. Each ingredient helped the others — the mineral improved soil conditions, the bacteria broke down oil into simpler compounds, and the plant pulled everything together while also absorbing and stabilizing the mess. None of them worked nearly as well on their own, which is the key surprise.
Key Findings
The triple combination (plant + bacteria + zeolite) removed 85.52% of total petroleum hydrocarbons — more than four times better than the plant alone (20.39%)
Adding bacteria alone to the plant boosted TPH removal from 20.39% to 80.37%, showing microbial inoculation is the single biggest performance driver
Zeolite alone removed 29.61% of contamination, suggesting the mineral works partly through physical adsorption even without biological help
chevron_right Technical Summary
Combining a common weedy plant, oil-eating bacteria, and a mineral additive cleaned up 85% of petroleum contamination in soil — far better than any single approach alone. This offers a cheap, scalable way to restore land damaged by oil spills.
Abstract Preview
Total petroleum hydrocarbons (TPHs) are major components of crude oil and pose long-term environmental risks due to their persistence and toxicity in soil, water, and air. Although phytoremediation...
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Parthenium is a genus of North American annuals, biennials, perennials, subshrubs, and shrubs in the tribe Heliantheae within the family Asteraceae and subfamily Asteroideae.