Wastewater flow in a sewer can be estimated by adding a known amount of tracer such as salt solution and measuring the salt concentration upstream and downstream of the point of addition. Upstream the background concentration of salt was 50 mg/L. One hundred kilograms of a salt solution (containing 30% salt) per minute was added, and the resulting concentration of salt downstream was determined to be 0.1% salt by weight. Estimate the mass and volumetric flowrate of the wastewater in the sewer

Q: A domestic wastewater with BODs of 205 mg/L is treated by a secondary treatment plant that removes…

A: Given, BOD5 = 205 mg/L Initial DO = 9.2 mg/L Final DO = 2 mg/L Bottle volume = 300 ml

Q: A storm sewer is mixed into a small streams. the stream before the mixing point has a NaCl…

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Q: A BOD test is conducted using standard size BOD bottles. The technician prepares  two BOD bottles on…

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Q: The following data was obtained to perform a BOD test to determine how well a wastewater treatment…

A: BOD  is the amount of oxygen required for the  bio degradation of materials  present in the waste…

Q: Wastewater with DO concentration of 2 mg/L is discharged to a river. The temperature of the river is…

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Temperature related material properties

Temperature-related properties of materials are the properties that change or show any variation with temperature variations. Various properties of materials include physical properties, mechanical properties, chemical properties, electrical properties, magnetic properties, etc. The chemical, electrical, and magnetic properties of materials are important, but the physical and mechanical properties are more important. Based on their composition and chemical bonding, materials are classified as metals, ceramics, polymers, and composites.