The activated sludge unit of a wastewater treatment plant requires an aerator. Two options exist and have the characteristics shown in the table. The city owner of the treatment plant sets an interest rate of 9%. Analysis period is 10 years. Determine which aerator to purchase. Initial cost Annual operating cost Annual Benefit Lifetime (years) Question 1: Incremental benefit-cost ratio analysis Aerator 1 462000 answer 55000 150000 10 APWC, APWB, Choose 1 or 2 (0 for none or 3 for both)? = percision guide: [0.000, 0.000, integer] [[ ]] • ? Aerator 2 207000 23000 100000 5

A. What is the amount of wastewater generated per person per day if the current plant serves 1,000,000 people and the average flow to the plant is 90 MGD? (results will be expressed in ! !"# $%&'() . ,"-") Round to whole number

A forty-foot wooden hull fishing vessel sprang an unexpected leak a few days after leaving port. As more water entered the vessel, the engine was flooded, and the vessel eventually sank. Inspection of the vessel during the leak showed that the water was coming from underneath a refrigerated space in the front part of the vessel. In view of its construction style, the bilge underneath the vessel was inaccessible. The underwriter refused to indemnify the insured for the loss of the vessel by claiming that the latter had not exercised diligence to make the vessel seaworthy prior to the developing of the leak. The owner/master of the ship had no knowledge of the leak before the ship started its voyage. Do you think the loss is covered under the policy?

Please solve #3. First 2 parts have been solved