environmental fate of medications medications can enter wastewater management sy
ID: 702574 • Letter: E
Question
environmental fate of medications medications can enter wastewater management systems either ... Question: Environmental fate of medications Medications can enter wastewater management systems either thro... (1 bookmark) Environmental fate of medications Medications can enter wastewater management systems either through human excretions or through improper disposal. Many medications are not effectively treated by current wastewater management processes and therefore are discharged by wastewater treatment plants. Antidepressants are some of the most commonly prescribed medications in the United States, and many antidepressants are not effectively managed by wastewater treatment plants. a. A wastewater treatment plant discharges to Boulder Creek in Colorado at a rate of 64 million L/day, and the stream flow, upstream of the wastewater discharge point, is 1110 L/s. If the concentration of the antidepressant venlafaxine (Effexor) measured in the creek water is 10 ng/L, what is the mass discharged per day from the wastewater treatment plant, assuming that there are no sources other than the wastewater treatment plant, and assuming that the drug rapidly equilibrates among sediment, fish, and water? What is the concentration of the medication in the wastewater treatment plant effluent?
Explanation / Answer
Wastewater scheme organization has plated for efficient removal of solid and dissolved wastes and make it drainage able to any irrigate corpse with no any type of contagion to be increase. As the situation here is that Americans are using more figure of set Antidepressants and finally the squander or a lot of it is receiving wash to the large drainage scheme. As missing the good excellence make certain and scheme to take away such checkup substance from irrigate basis they are opposite big confront. Here the medicine name Paroxetine HCl (Paxil) is chiefly inside center. The squander irrigate organization is organization to resolve the waste irrigate into a stream at a speed of 64 million L/day. The wastewater free tip, the watercourse run is 1,110 L/s. Antidepressant paroxetine HCl (Paxil) deliberate in the lake is 10 ng/L. So for per next run speed with the free gets 1110 * 10 nanogram (ng)/ second = 11.1 microgram = 0.0111 milligram (mg)/ second. This make the attentiveness for the stream free rate of 64 million L/day. So, scheming for 1 million liter 100,000 liter = 1million liter, for 64 million liters = 64000,000 / day. For 24 hours it become 24 60 (1 hour) 60 (per second) = 86400 seconds per day. Water flows at 1110 liter/ second, so for a entire daylight hours the flow will be = 95904000 liters, scheming the medicine is receiving oust is = 95904000 * 0.0111 mg of drug/second = 1064534 mg for 24 hours in that watercourse = 1.064534 grams/day. This is the computation for mass free per day. attentiveness for each waste substance is = 0.0111 milligram (mg)/ second.
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