The BOD, of a municipal wastewater is 200 mg/L at 20°C. The amount of organic matter remaining in the sample after 5 d is equivalent to 151.93 mg/L of O,. Calculate the BOD, of the sample at 30°C. Use 0 = 1.047 as the Arrhenius coefficient for BOD rate constant. %3D 8,

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Asphalt Binders and Mixtures

Asphalt binders are subsidiary products procured during the refining process of petroleum while manufacturing gasoline, diesel, and similar petroleum products. Asphalt binders are obtained from the residue that remains after the distillation of petroleum, this residue is further subjected to steam distillation and oxidation to remove the traces of gas oil present in the residue. Certain additives or modifiers are also added to asphalt binders to alter them to suit different applications.