Potential role as bioremediation of different mangrove plants around the
shipbreaking area of Sitakunda coast, Bangladesh
Mazharul Islam Sajeeb, Dr. Md. Shafiqul Islam*
INSTITUTE OF MARINE SCIENCES, UNIVERSITY OF CHITTAGONG
Chattogram-4331, Bangladesh
What we learned
Key Findings
Recommendations
Importance
 The purpose of this research was to investigate the capacity of three dominant
mangrove plants (Sonneratia apetala, Avicennia officinalis, and Ceriops decandra) to
remove Zinc (Zn), Copper (Cu), and Lead (Pb) in the high saline supralittoral zone of
Sitakunda coast.
 Hence, these halophytic species may be used as potential agents of HM
phytoremediation, and their large-scale farming in the supralittoral
zone of Sitakunda coats would be effective in the ecorestoration of this
deltaic complex in context to conservative pollutants.
Ecological restoration
w Livelihood Opputunity
Alternative
Biodiversity
Economic benefits
 The findings revealed that the order of biologically available heavy metals (HMs) in the
soil and bioaccumulated HMs in the plants were S6>S7>S4>S5>S1>S2>S3, with Zn>Cu>Pb
being the order of biologically available and bioaccumulated HMs. The maximum
concentration of these HMs was noted in the roots, followed by stems and leaves.
 Regarding hyper-metabolizing abilities, S. apetala is superior to A. officinalis and C.
decandra for metal extraction. This study proposes that these halophytes could be used
for phytoremediation, and their cultivation would help conserve pollutants in this deltaic
complex for ecological restoration.
Introduction
 Halophyte farming at a macro level in relatively low HM-polluted zones
of the Sitakunda coast may expand the horizon of innovative livelihood
opportunities, provided it is linked with proper branding and marketing
strategies through well-defined supply chain management systems.
Research background study and synopsis finalization
Selection of study area
Research design and species selection
Sampling schedule April – May in 2023
Experimental setup (Lab, equipment and reagent setup)
Sample preparation and take weighting
Kept into the Muffle furnace with temperature 450°C
+
After burning, the sample mixed with distilled water.
+
Dilute with HNO3 (5 ml)
+
After dilution kept into the hotplate (50°C) for 5 minutes
Data calculation by using Atomic Absorption Spectrophotometer (AAS)
Data calculation by observation & calculation
Results
Objectives
Methods & Materials
.
Figure 1: Study Area
Figure 1: Study Area
Conclusions
Figure 2: Plant species (1) Sonneratia apetala, (2) Avicennia officinalis, and
(3) Ceriops decandra.