When drinking water is disinfected with chlorine an undesired byproduct, chloroform, is formed. Suppose a 70-kg person drinks 2 L of water every day for 70 years with a chloroform concentration of 0.1 mg/L What is the average life-time daily dose? 0.17 ug/kg•day     2.9 ug/kg•day     0.1 mg/L     0.2 mg/L•day

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Q: A woman weighing 78 kg drinks 2 liters per day of water that contains 5 mg/L of Contaminant X. If…

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Q: Problem 6.1 A small stream was found to be contaminated with Lindane, a pesticide known to cause…

A: Given data - Qi = 100 cm3/sec Ci = 50 mg/L For station (1) ,Cdye = 10ug/l CL2 = 0.5 ug/l For station…

Q: Question 8 Compute the degree of disinfection achieved within 8 minutes of addition of 10 mg/l of…

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Q: A sample of wastewater is mixed with 2 parts clean water and placed in a bottle. The pO of a sample…

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Q: A completely mixed tank has a volume of 10 Litres. It contains 0.5 Litres of dirty water with a…

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Q: 3. Find the concentration of polychlorinated biphenyls in drinking water that would result in a 10-6…

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Q: Use the table below to calculate the following: The concentration (in mg/L and mol/L) of the…

A: Calculate formula weights (FW) for Al2O3 and Al2(SO4)3.14H2O Take molecular weight of Al=27 g/mol,…

Q: Particle emissions in a house. The power goes out in your apartment (volume = 150 m3) at night, so…

A: Note-Since we answer three subpart at a time so we will answer the first three. Please resubmit…

Q: A sample of wastewater is mixed with 2 parts clean water and placed in a bottle. The DO of a sample…

A: Given data : The value of initial dissolved oxygen D.Oi=10 mg/L The value of Final dissolved oxygen…

Q: You are asked to complete an investigation into the efficiency of removal of your toilet. The bowl…

A:

Q: Families in a community in a developing country use large, 200.0 L drums to un-treated surface…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: hese chemicals would you use to calculate hardness? (b) All aqueous solutions must ge neutrality.…

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Q: A step-dose tracer test was conducted on the clear well of a water treatment plant. A constant…

A: Given, The constant fluoride dosage C0 = 2.0 mg/l C20=0.10 mg/l

Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.