Highlight Activities 2021: Phytoremediation of soil co-contaminated with zinc and crude oil using Ocimum gratissimum (L.) in association with Pseudomonas putida MU02

Soil adulteration by organic and inorganic contaminants chiefly in industrial and agricultural area is one of the major problems faced by the world today. Phytoremediation using aromatic plant such as Ocimum is a sound, economically reasonable and an eco-friendly approach. Besides, microbial assisted phytoremediation can bring about plant-promoted microbial degradation, plant uptake and phytodegradation of soil contaminants. In this study, the ability of Ocimum gratissimum in association with Pseudomonas putida MU02 to remediate zinc and crude oil contaminated soil (2,000mg/kg, 1% w/w crude oil) was investigated in a 60-day pot experiment. Four different treatments and a control (clean soil + plant) were employed for the study: co-contaminated soil only; co-contaminated soil with O. gratissimum; co-contaminated with P. putida inoculum; cocontaminated soil with O. gratissimum and P. putida. Comparatively, the highest TPH deduction efficiency (75.87%) was shown by the treatment comprising of O. gratissimum and P. putida while highest metal uptake was shown by the treatment with plant only. Better TPH removal associated with higher number of bacteria in the vegetated and inoculated pots could be attributed to the rhizopheric effect of the plants. Altogether, the association of O. gratissimum with P. putida can be a potential candidate for the remediation of co-contaminated soil.

Deki Choden, Prayad Pokethitiyook, Toemthip Poolpak & Maleeya Kruatrachue (2021) Phytoremediation of soil co-contaminated with zinc and crude oil using Ocimum gratissimum (L.) in association with Pseudomonas putida MU02, International Journal of Phytoremediation, 23:2, 181-189, DOI: 10.1080/15226514.2020.1803205

ผลงานที่ตีพิมพ์มีความเชื่อมโยงกับเป้าหมาย SDGs เป้าหมายที่ 3 สร้างหลักประกันว่าคนมีชีวิตที่มีสุขภาพดีและส่งเสริมสวัสดิภาพสาหรับทุกคนในทุกวัย  ข้อ 3.9 ลดจำนวนการตายและการเจ็บป่วยจากสารเคมีอันตรายและจากมลพิษและการปนเปื้อนทางอากาศ น้ำ และดิน ให้ลดลงอย่างมาก ภายในปี 2573