A new water supply system was installed in a southern state. Part of the system was a large outdoor holding tank placed in the ground near a farm field. Shortly after installation, unacceptable levels of contamination were found. An investigation revealed that the contamination was caused by dead rats decaying in the holding tank. The problem statement that went out was find a way to keep the rats out of the tank. Prepare a Duncker diagram to analyze this situation.Please answer very soon will give rating surely

Your organization has been hired to provide a water treatment process or device toremove toxic Chromium 6 [Cr(VI)] from water emanating from an underground source.Your organization has developed a treatment process that removes most of the Cr(VI)from the water to a residual concentration of 0.05 mg/L which is an acceptable level inline with the World Health Organisation. The underground water flows at 40 m3/h andhas Cr(VI) concentration of 100mg/L. The effluent flow rate is 97% of the influent flowrate, and the remainder of the water is discharged as wastewater. Calculate theconcentration of Cr(VI) in wastewater.

Question 1: You have been assigned to design primary clarifiers for a wastewater treatment plant. The average flow rate of the wastewater is 256000 m3/day with a BOD5 of 120 mg/L and suspended solids concentration of 300 mg/L. The goal is to remove 35% BOD5 and 60% suspended solids in primary treatment. Determine the following: 1) The diameter of the primary clarifier for a surface overflow rate of 50 m3/m2-day.2) The detention time in the primary clarifier and the mass of solids removed in kg/day.Assume a depth of 4m.

From these results, using the water quaility assesment, can you determine if the water is safe or not?

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Describe recuperation test for an open well.

Can you please help me with the homework problem

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Wasterwater Engineering Civil engineering