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| Articles
by
M. Saiful Islam |
Total Records (
2 ) for
M. Saiful Islam |
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M.M. Islam
,
M.A. Halim
,
S. Safiullah
,
S.A.M. Waliul Hoque
and
M. Saiful Islam
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The present research was carried out with eight specimens
of sludge from Apex Weaving and Finishing Mills Ltd. Gazipur, Bangladesh,
to determine the concentration of heavy metals (Pb, Cd, Zn, Cu, Cr, Fe
and Mn) in the sludge samples and an assessment was made with the heavy
metal content in agricultural soil. Atomic Absorption Spectrometry (AAS)
method was employed for the analysis of Pb, Cd, Cr, Zn, Cu and UV-Spectrophotometric
method was used for Fe and Mn, respectively. The mean concentration of
lead (Pb), cadmium (Cd), chromium (Cr) was 79.13, 6.27, 4.35 mg kg-1
and for zinc (Zn), copper (Cu), iron (Fe) and manganese (Mn) it was 7.90,
1.34, 195.2 and 3.97 g kg-1, respectively. All the heavy metal
concentrations except chromium in the sludge samples were higher than
that of in agricultural soil. In addition, the study concluded that pre-treatment
process for reducing the amount of heavy metal is mandatory before the
sludge can be used as a soil conditioner or fertilizer in the agricultural
soil. |
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M. Saiful Islam
,
M. A. Halim
,
S. Safiullah
,
M. Safiqul Islam
and
M. Mazharul Islam
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This study evaluated the mutual relationship among arsenic,
iron, manganese, total nitrogen and total organic carbon in the soil of
arsenic affected area, Singair, Bangladesh and the results were compared
with the other arsenic contaminated area in Bangladesh. The present investigation
revealed that high concentration of iron (9138-22071 mg kg-1)
and manganese (22-80 mg kg-1) were accompanied by the high
concentration of arsenic (44-60 mg kg-1) in arsenic polluted
Singair area. In addition, the study showed that the soil of Singair (15-20
m) contained very high concentrations of total organic carbon ranged from
23100-42900 mg kg-1 and the content of total nitrogen was also
very significant in some soil samples, where the concentration of arsenic
was high. Therefore, the research study can conclude that presence of
total organic carbon, total nitrogen, iron and manganese has significant
relationship with arsenic contamination in the soil of Bangladesh. However,
the study found no significant relationship with arsenic and carbon nitrogen
ratio in the soil of Singair. |
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