Abstract

• This research is concerned with the remediation of contaminated sediments from the flooded areas, Middle Lake and Small Lake of Minbya Township in Rakhine State.The two sediment samples were collected in September, 2018. The investigative analyses were done in terms of distribution of some heavy metals in the sediment samples and microbiological properties of sediments. Relative abundances of elements in the sediment samples were determined by EDXRF. The quantitative elemental analysis of the sediment samples were determined by AAS. Cadmium concentrations of the both sampling sites were not detected and those of arsenic , iron and lead were (0. 14 , 0.15) ppm, (24.17 , 24.57) ppm and (0.09, 0.23 ) ppm, respectively. Microbiological properties of sediments were examined by using 3M Petri Films. Total Coliform could be observed as (3000) and (9000) cfu g-1 in these study areas. However, E.coli could not be detected in both sites. Overall values of study areas indicated that the iron was in high level in the contaminated samples. The in-Situ treatment system for contaminated sediment was treated by using lime amendment and sand-cap. The cost effective in-situ treatment system has shown the significant removal percent of iron (50.29 %) to (50 %) compared with control (without amendment) system. This remediation technique code inferred the very beneficial for rural area as in cost effective and locally available technique.