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Evaluation of Pteris Vittata as Trap Plant to Mitigate Arsenic from Arsenic Contaminated Soil

A. F. M. Jamal Uddin
Dept. of Horticulture, Sher-e-Bangla Agricultural University, Dhaka

M. Z. K Roni
Dept. of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

H. Mehraj
Dept. of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

U. Mayeda
Dept. of Botany, Jahangirnagar University, Dhaka, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at Horticultural farm of the Sher-e-Bangla Agricultural University, Bangladesh for phytoremediation of arsenic from soil using Pteris vittata as a trap plant. The experiment was conducted following Completely Randomized Design with three replications. Soil was contaminated with arsenic at different levels by treating @ 0 ppm (A₀), 500 ppm (A₁), 1000 ppm (A₂) and 2000 ppm (A₃) arsenic trioxide (As₂O₃) in pot soil. During the growing period the Pteris vittata as trap plant accumulated 23837.2 ppm, 15332.6 ppm, 1769.9 ppm and 0.9 ppm arsenic from pot soil contaminated with arsenic of A₃, A₂, A₁ and A0 treatments respectively. Pteris vittata could be use as a possible way to mitigate and or reduce arsenic from soil of arsenic affected areas in Bangladesh.

Keywords: Pteris, Vittata, Phytoremediation, Arsenic, Reduction

Location: Horticulture farm, Sher-eBangla Agricultural University, Bangladesh

Start Date: 00-07-2012

End Date: 00-10-2012

Program Area: Risk Management in Agriculture

Non-commodity: Impact

Objectives:

To know the phytoremediation of arsenic from soil using Pteris vittata as a trap plant

Methodology:

Location and period of experiment: The experiment was conducted at the Horticulture farm, Sher-e -Bangla Agricultural University, Bangladesh during the period from July 2012 to October 2012. Design and treatments: Experiment was carried out following Completely Randomized Design where soil treated with four level of arsenic viz. A₀: Control (0 ppm); A₁: 500 ppm; A₂: 1000 ppm; A₃: 2000 ppm following three replication. Age of planting materials: Three weeks Pteris vittata were transplanted on pot soil. Forms and source of chemical: Arsenic was applied in the form of Arsenic trioxide (As₂O₃) purchased from Loba Chemie Pvt. Ltd., India. Fertilization: A ratio of 1:1 well rotten cow dung and soil were mixed and pots were filled 15 days before transplanting. Intercultural operation: The pot was hand-weeded and watered as needed. No additional fertilizers or soil amendments were added during the growing seasons. Data collection procedures: Data were collected on leaf number; number of newly emerged leaves, number of fallen/mature leaves, plant height, leaf area, plant leaf biomass, arsenic accumulation on 0.5 mg tested sample of leaf biomass and total arsenic accumulation on plant leaf biomass. Leaf area was measured by non-destructive method using CL-202 Leaf Area Meter (USA). Chemical analysis for arsenic: Plant biomass was measured by using precision balance after drying. After growing, plants were collected and dried. After drying, leaves were smashed by mortar and pastel machine. The arsenic analysis for was performed in Bangladesh Council of Scientific Research Institute (BCSRI) by using “Atomic Absorption Spectrometer”. Statistical analysis: Collected data were statistically analyzed using MSTAT-C computer package program. Mean of every treatments were calculated and difference between treatments was evaluated by Least Significance Difference (LSD) test at 5% level of significance.

Source of Information: J. Sci. Technol. Environ. Inform. 01(02): 75-80 (2015)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Soil was contaminated with arsenic at different levels by treating @ 0 ppm (A₀), 500 ppm (A₁), 1000 ppm (A₂) and 2000 ppm (A₃) arsenic trioxide (As₂O₃) in pot soil. During the growing period the Pteris vittata as trap plant accumulated 23837.2 ppm, 15332.6 ppm, 1769.9 ppm and 0.9 ppm arsenic from pot soil contaminated with arsenic of A₃, A₂, A₁ and A0 treatments respectively. Pteris vittata could be use as a possible way to mitigate and or reduce arsenic from soil of arsenic affected areas in Bangladesh.

Knowledge Management: Journal