A BOD test is conducted using standard size BOD bottles. The technician prepares  two BOD bottles on Day 0, putting 20 mL of wastewater into each bottle and then filling  each bottle the rest of the way with dilution water. A seed is also added. He measures the  dissolved oxygen concentration in the first bottle to be 8.2 mg/L. He places the second bottle  in the 20C incubator. Five days later, he measures the dissolved oxygen concentration in the  second bottle to be 3.4 mg/L. A control bottle (containing dilution water and seed) was also  tested and did not have an oxygen demand. a. What is the 5-day BOD for this waste? b. If the ultimate BOD of this waste is 130 mg/L, what is the BOD rate constant? c. If the test was re-run at 30C, find the 5-day BOD and ultimate BOD for this higher  temperature.

Q: A standard BOD test is run using seeded dilution water. The blank bottle containing the seeded…

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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.