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    Öğe
    Determination of Surface Water Quality for Irrigation in Dinajpur
    (2021) Islam, Motaharul; Nasrın, Taslema Nasrin; Islam, Mofizul
    A research was carried out to assess the suitability of surface water for irrigation purposes. For this\rreason, 56 samples of surface water were collected from each union of Dinajpur sadar upazilla,\rDinajpur. The analysis was included pH, EC, TDS, Ca, Mg, S, P, Na, K, Cl- and HCO3- to evaluate\rthe suitability of surface water for irrigation purposes. Almost all the water samples were within the\rrecommended pH value for irrigation and a great impact on crop production. With respect to\relectrical conductivity (EC) samples were low to medium salinity. For total dissolved solids (TDS),\rall samples were considered as freshwater for irrigation. On the basis of Ca, Mg, S, P, Na, K, Cl-\rand HCO3- all samples could safely be used for irrigation and would not affect the
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    Öğe
    Quantitative Constituents Analysis of Rice Mill Wastewater
    (2020) Islam, Motaharul; Nasrın, Taslema Nasrin; Rahman, Mosiur; Islam, Mofizul; Ray, Tushar Kanti
    In the present world, climate change is a mass talked issue. Because of climate change, humans andanimals are under the risk of threatening. The scientist has pointed out that main reasons for climatechange are waste. Waste is generated from household chores and industries, factories etc. that areaffecting the balance of the environment in many ways. This waste may be of various types such assolid, liquid, gaseous etc. Therefore, the study was taken to assess the chemical components containin wastewater in Dinajpur Sadar, Bangladesh. This study was aimed to evaluate the chemicalcompositions of the generated wastewater including comparison with the groundwater. The dataconcerning to the rice mill waste water in Dinajpur, Bangladesh was obtained from individual fieldvisits by interviewing with owner and worker in the rice mills. The wastewater samples werecollected randomly from different rice mills. A laboratory experiment was performed to determinethe chemical constituents of the wastewater sample. The wastewater contained of pH(6.11-6.18),EC(181.47-185.23 µScm-1), Na(26.19-28.89 mgl-1), Ca(45.41-51.26 mgl-1), Mg(47.12-49.8 mgl10), K(184.7-191.3 mgl-1), TDS(45.94-47.96 mgl-1), HT(306.7-332.33 mgl-1), S(11.05-13.25 mgl-1),Cl-(522.45-526.182 mgl-1), HCO3-(5.12-6.99 mgl-1), DO(0.46-0.53 mgl-1), P(17.01-21.54 mgl-1).The obtained concentration of Ca, EC, pH, Na and HCO3- were within the reported range ofgroundwater in Dinajpur, Bangladesh. The concentration of Cl-, K, P, Mg and hardness in thewastewater were above the concentration of reported groundwater in Dinajpur, Bangladesh. On theother hand, the concentration of TDS in the wastewater was less than the reported concentration ofgroundwater in Dinajpur, Bangladesh.