Two industries Fuzzy Chemicals and Super Agra want to discharge their wastewater into the Delaware River (upstream flow of Q3) through a single channel. Fuzzy Chemicals has a flow of 2 MGD (Q2) and a phenol concentration of C2 while Super Agra has a flow of 20 MGD (Q1) with a phenol concentration of C1. The phenol concentration upstream of the factories is negligible. What is the correct expression to determine the phenol concentration C just downstream of the factories? O C= (Q1C1 + Q2C2) / (Q3) C= (Q1C1 + Q2C2 + Q3(C1+C2) / (Q3+Q1+Q2) O C= (Q1C1 + Q2C2) / (Q3+Q1+Q2) O C = (C, + C2) * (Q1+Q2) / (Q3+Q1+Q2)

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.