Solid Waste Management · Environmental Engineering · GATE CE

To design an optimum municipal solid waste collection route, which of the following is/are NOT desired :

In a solid waste handling facility, the moisture contents (MC) of food waste, paper waste, and glass waste were found to be MCf, MCp, and MCg, respectively. Similarly, the energy contents (EC) of plastic waste, food waste, and glass waste were found to be ECpp, ECf, and ECg. respectively. Which of the following statements is/are correct?

Organic fraction of municipal solid waste (OFMSW) with bulk density of $315 \mathrm{~kg} / \mathrm{m}^3$ and water content of $30 \%$ is mixed with municipal sludge of bulk density $700 \mathrm{~kg} / \mathrm{m}^3$ and water content of $70 \%$, such that the water content of the mixture is $40 \%$. The amount (in kg ) of sludge to be mixed per kg of OFMSW (rounded off to 2 decimal places) and the density of the mixture (in $\mathrm{kg} / \mathrm{m}^3$ ) (rounded off to the nearest integer) are calculated. Which of the following options is/are true:

At a municipal waste handling facility, 30 metric ton mixture of food waste, yard waste, and paper waste was available. The moisture content of this mixture was found to be 10%. The ideal moisture content for composting this mixture is 50%. The amount of water to be added to this mixture to bring its moisture content to the ideal condition is _________ metric ton. (in integer)