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Sewage & Waste Water Management (EHS409_261)
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_____ quality is the physical, biological and chemical characteristics of a liquid flowing from a component or device
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UBOD is the measure of the _____ required to complete the breakdown of the organic matter
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The acronym CBOD stands for _____
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A/An ____ condition is the absence of molecular oxygen as a part of the environment or a biological process that occurs in the absence of molecular oxygen but can utilize oxygen bound in other molecules, such as nitrate (NO3-)
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The intermittent occurrence of individual waste-water-generating activities creates_____ variations in the waste-water flow rate from a residence
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The threshold tolerance limit of some aquatic species to chlorine is _____ milligrams per litre in freshwater and 0.01 milligrams per litre in saline water
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Secondary treatment depends primarily upon _____ organisms which biochemically decompose the organic solids to inorganic solids.
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______ is the condition in which all waste-water and/or effluent constituents are in their reduced form, meaning there are no oxidants present
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The development and forecasting of average daily flow rates is necessary to determine the _____ capacity as well as the hydraulic requirements of the treatment system
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settling tanks can be divided into _____ groups
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