The following data was obtained to perform a BOD test to determine how well a wastewater treatment plant is operating. Calculate the BOD removal given the data provided. Note: ratios written as 1:4 indicate 1 out of 4 (or 1/4). Initial DO (mg/L) Final DO (mg/L) Dilution ratio Untreated sewage Treated sewage O A. 92% 5.0 2.0 1:60 8.0 4.0 1:20 O B. 75% C. 44% O D. 15% O E. 56%

Q: A wastewater treatment plant discharges its effluent into a river at time 0 days as shown in the…

A: (a) It is required to determine the initial DO deficit. From the graph, saturated DO is 9 mg/L, and…

Q: Wastewater flow in a sewer can be estimated by adding a known amount of tracer such as salt solution…

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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: 1.1 What would the 5-day BOD have been if the sample had been incubated at 25°C? 1.2 Would the 5-day…

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Integrated Solid Waste Management

Integrated Solid Waste Management (ISWM) is a thorough waste suppression, compost, removal and recycling Program. An effective ISWM system considers how to suppress, manage and recycle solid waste in a manner that is most efficiently to protect human health and the surrounding. ISWM system requires evaluation of public wants and demands and then selecting and merging the most effective waste management activities for the proposed demands. The main ISWM activities for solid waste management are Waste prevention, Recycling and Composting, and Combustion and Removal and waste collection in a properly planned, constructed, managed and mitigated landfill areas. Each of these requires careful designing, financing, accumulation, and delivery of activities.