| dc.description | An alternative name of water is called life. Quality of water is most important in
determining the sufficiency of water supply to satisfy the requirement of industrial
usage. The specific quality standards of water for different industrial purposes are
extremely dissimilar. Groundwater quality is inevitable not only for successful crop
production in irrigated area but also for sustainable growth, development and
management of livestock, poultry, aquaculture, and agro based industries. Irrigated
agriculture is dependent on adequate supply of useable quality water. In Bangladesh
most of the farmers depend on groundwater for irrigating agricultural crops. During dry
season surface waters like rivers, canals and bells become almost dry and farmers are
compelled to use groundwater. For successful crop cultivation, irrigation is practiced to
meet the requirements of moisture in soils but groundwater used for irrigation, contains
some dissolved elements may affect the irrigated soil environment by accumulating
these harmful and toxic elements in the soil, which ultimately destroys productivity of
agricultural land (FSES, 1995). | en_US |
| dc.description.abstract | A study was conducted to evaluate the degree of toxicity of water collected from different
sugar industries of greater Dinajpur District in Bangladesh. The 64 water samples were
collected from ground sources to study the chemical constituents and categorized the
waters on the basis of their suitability for irrigation, aquaculture, drinking and industrial
uses. The chemical analyses included pH, EC, TDS, anions (CO3, HCO3. Cl, POs, SO)
and cations (Ca, Mg, Na, K, Fe, Mn, B) and estimated parameters SAR, SSP, RSC and
Hy were also calculated. All waters were alkaline in nature (pH= 5.93 to 7.97) except
several samples. According to TDS all the waters were graded as “Fresh water”. SSP
. tated the samples as “excellent” classes. 57 samples were free from RSC and all waters
were classified in suitable category for irrigation. Hardness (Hy) categorized the waters as
hard and very hard classes. The toxicity of B, Fe, Mn, SO4, and PO4 were not detected.
The concentrations of these ions were far below the recommended limits for irrigation.
But in most of waters Cl was considered as toxicants for irrigating crops. B, SO, and
TDS were recorded within or below the recommended limit and most of the waters were
not problematic for drinking. Based on Cl content all samples were unsuitable for
irrigation, 1 sample was unsuitable for drinking and textiles. As per Fe content, all waters
were unsuitable for carbonated beverage, confectionery, laundering, tanning .and textile.
As per Mn content all waters were suitable for air-conditioning, brewing, carbonated
beverage, confectionery, ice manufacture, laundering and pulp and paper industries.SO,4
status graded the waters as suitable for all purposes. None of the waters alone were
suitable for most industrial usage. Positive significant correlations existed between RSC
and SAR, Hr and SSP, P# and RSC, EC and SSP, EC and Hy, TDS and SSP, TDS and
Hr, TDS and EC. | en_US |
