## 4 Results and Discussions
### Calorific Value and Possible Electricity Generation  
#### 4.2.1 Physical Composition of MSW in RCC  
After surveying 50 households, seven families were selected as representatives of different households in RCC to analyze the physical composition of the MSW generated by the families. These seven families included at least one of each type of family surveyed. Total waste collected from the seven families was 63.23 kg. The physical composition of MSW from each of the seven families is shown in Table 6. It is observed that a significant amount of solid waste comes from food and vegetables, at about 72.29% on average. \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Residence Type** & **No. of People** & \begin{tabular}{c} **Amount of Waste** \\ **(kg)** \\ \end{tabular} & \begin{tabular}{c} **Educational Status** \\ **of Interviewees** \\ \end{tabular} & \
\begin{tabular}{c} **Amount Being Paid for** \\ **Waste Collection (BDT)** \\ \end{tabular} &
\begin{tabular}{c} **Condition of** \\ **Residence** \\ \end{tabular} \\ \hline Family (O) & 7 & 3.55 & PE & 0 & SP \\ Family (R) & 5 & 2.74 & HE & 30 & SP \\ Family (O) & 4 & 2.32 & JE & 30 & SP \\ Family (R) & 4 & 2.20 & JE & 30 & SP \\ Family (R) & 5 & 1.98 & PE & 0 & P \\ Family (O) & 4 & 1.45 & BD & 31–60 & P \\ Family (O) & 3 & 2.55 & BD & 21–30 & P \\ Family (O) & 6 & 2.82 & HE & 31–60 & P \\ Family (O) & 5 & 3.44 & MD & 0 & P \\ Family (R) & 4 & 2.25 & BD & 30 & P \\ Family (O) & 6 & 3.05 & BD & 30 & P \\ Family (R) & 3 & 1.95 & HE & 30 & P \\ Family (R) & 5 & 2.95 & HE & 30 & P \\ Family (O) & 6 & 5.10 & HE & 40 & P \\ Family (R) & 4 & 1.33 & HE & 21–30 & SP \\ Family (R) & 4 & 1.15 & HE & 0 & SP \\ Family (O) & 5 & 2.08 & SE & 31–60 & P \\ Family (R) & 4 & 2.64 & HE & 0 & P \\ Family (O) & 8 & 3.34 & JE & 30 & P \\ Family (O) & 3 & 1.85 & MD & 30–40 & P \\ Family (O) & 6 & 3.75 & SE & 0 & P \\ Family (O) & 3 & 1.65 & BD & 30 & P \\ Family (O) & 4 & 2.74 & JE & 30 & SP \\ Family (O) & 3 & 3.12 & MD & 40 & SP \\ Family (R) & 4 & 2.58 & PE & 0 & P \\ Family (O) & 8 & 2.95 & N/A & 0 & SP \\ Family (O) & 4 & 1.80 & MD & 0 & P \\ Family (O) & 7 & 3.14 & BD & 30 & P \\ Family (R) & 3 & 2.36 & HE & 30–40 & P \\ Family (O) & 7 & 2.56 & HE & 30 & P \\ Family (R) & 3 & 1.63 & MD & 30 & SP \\ Family (R) & 3 & 1.32 & MD & 0 & P \\ Family (R) & 4 & 2.46 & SE & 0 & P \\ Family (O) & 3 & 2.15 & HE & 0 & P \\ Family (O) & 5 & 1.72 & PE & 30 & SP \\ Family (R) & 3 & 2.07 & MD & 30–40 & P \\ Large Family (O) & 26 & 11.52 & SE & 40 & SP \\ Large Family (O) & 28 & 14.96 & MD & 40 & P \\ Large Family (O) & 52 & 16.65 & MD & 40 & P \\ Large Family (O) & 94 & 36.00 & BD & 40 & P \\ Large Family (O) & 49 & 21.54 & HE & 40 & P \\ Large Family (O) & 24 & 11.96 & HE & 40 & P \\ Large Family (O) & 32 & 17.12 & BD & 30 & P \\ Large Family (O) & 45 & 19.06 & SE & 35 & P \\ Large Family (O) & 20 & 9.73 & HE & 30 & P \\ Large Family (O) & 32 & 11.86 & BD & 30 & P \\ Large Family (O) & 15 & 5.97 & MD & 30 & SP \\ Large Family (O) & 81 & 26.96 & BD & 40 & P \\ Large Family (O) & 92 & 25.53 & HE & 40 & P \\ Large Family (O) & 17 & 7.72 & MD & 30 & SP \\ Total & 772 & 325.32 & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Waste management facilities in RCC (collected from RCC authority, 2018). Waste collection data from different households in Rajshahi (O = Owned, R = Rented, PE = Primary Education, JE = Junior Education, SE = Secondary Education, HE = Higher Secondary Education, BD = Bachelor’s Degree, MD = Master’s Degree, SP = Semi-Pucca/Semi-Concrete, P = Pucca/Concrete). This percentage is similar to the one observed in a literature survey where [PERSON] et al. observed that about 71.1% of the total MSW in RCC was food and vegetables [23]. An average of 73.19% of the total MSW in RCC was food and vegetables in the work done by [PERSON] et al. in 2014, which also supports the result of this work [9]. Plastics contribute about 4.74% to waste generation.