### Life Cycle Assessment
#### 2.6.4 LCI, Materials' Life Cycle Inventory, and Waste Glass Powder Life Cycle Inventory
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Main Process** & **Flux Type** & **Flux** & **Value** & **Unit** \\ \hline \multirow{8}{*}{\
\begin{tabular}{c} Limestone, raw \\ (1 kg) \\ \end{tabular} } & \multirow{2}{*}{Materials} & Calcite (mineral) & 1 & kg \\ \cline{3-5}  & & Water & 2.14 \(\times\) 10-2 & dm3 \\ \cline{2-5}  & Soil & Occupation & 1.34 \(\times\) 10-3 & m2a \\ \cline{2-5}  & & Explosive (blasting) & 1.82 \(\times\) 10-5 & kg \\ \cline{2-5}  & \multirow{2}{*}{Energy/Processing} & Electricity & 2.73 \(\times\) 10-5 & kWh \\ \cline{3-5}  & & Diesel oil (burned) & 0.0333 & MJ \\ \cline{3-5}  & & Evaporated water & 2.14 \(\times\) 10-2 & dm3 \\ \cline{3-5}  & & Particulate matter \textless{} 2.5 \(\upmu\)m & 6.08 \(\times\) 10-6 & kg \\ \cline{3-5}  & & Particulate matter \textgreater{} 2.5 \(\upmu\)m and \textless{}10 \(\upmu\)m & 5.89 \(\times\) 10-5 & kg \\ \cline{3-5}  & & Particulate matter \textgreater{} 10 \(\upmu\)m & 0.000159 & kg \\ \hline \multirow{3}{*}{
\begin{tabular}{c} Clay (1 kg) \\ \end{tabular} } & Material & Clay mineral & 1 & kg \\ \cline{2-5}  & Soil & Occupation & 1.67 \(\times\) 10-4 & m2a \\ \cline{2-5}  & Energy & Diesel oil (burned) & 0.0288 & MJ \\ \hline \multirow{2}{*}{Gypsum (1 kg)} & \multirow{2}{*}{Miscellaneous} & Miscellaneous (unmodified \\  & & inventory) & - & - \\ \hline \multirow{2}{*}{Iron ore} & \multirow{2}{*}{Miscellaneous} & Miscellaneous (unmodified \\  & & inventory) & - & - \\ \hline \multirow{3}{*}{Sand} & \multirow{2}{*}{Materials} & Quartz sand & 1 & kg \\ \cline{3-5}  & Soil & Occupation & 1.25 \(\times\) 10-3 & m2a \\ \cline{2-5}  & Energy & Diesel oil (burned) & 0.0609 & MJ \\ \hline \multirow{8}{*}{Gravel (1 kg)} & \multirow{2}{*}{Materials} & Granite & 1.05 & kg \\ \cline{3-5}  & & Groundwater & 8.07 \(\times\) 10-3 & dm3 \\ \cline{3-5}  & Soil & Occupation & 1.34 \(\times\) 10-3 & m2a \\ \cline{2-5}  & & Explosive (blasting) & 1.45 \(\times\) 10-4 & kg \\ \cline{3-5}  & & Electricity & 3.72 \(\times\) 10-3 & kWh \\ \cline{3-5}  & & Diesel oil (burned) & 8.28 \(\times\) 10-3 & MJ \\ \cline{3-5}  & & Lubricant oil & 6.00 \(\times\) 10-3 & g \\ \cline{3-5}  & & Internal transportation & 1 & km \\ \cline{3-5}  & & Particulate matter \textless{} 2.5 \(\upmu\)m & 6.08 \(\times\) 10-6 & kg \\ \cline{3-5}  & Emissions & Particulate matter \textgreater{} 2.5 \(\upmu\)m and \textless{}10 \(\upmu\)m & 5.89 \(\times\) 10-5 & kg \\ \cline{3-5}  & & Particulate matter \textgreater{} 10 \(\upmu\)m & 1.59 \(\times\) 10-4 & kg \\ \hline \multirow{2}{*}{Potable water} & \multirow{2}{*}{Miscellaneous} & Miscellaneous (unmodified \\  & & inventory) & - & - \\ \hline \hline \end{tabular}
\end{table} 
Table 5: _Cont._machine per ton was obtained, totaling \(8.5\times 10^{-3}\) h machine/t, the same as 30 s machine/t. The final machine-hours value increased by 50% (46 s/t), adopting a conservative approach due to the assumptions used in the estimates, which increased the uncertainty of the evaluation. The removal process considered that two pieces of equipment were used to remove, crush, and homogenize soils, each one with the capacity to remove 6 m\({}^{3}\)/h and with a 2 HP (1.5 kW) electric motor [59]. Therefore, the specific consumption was 0.156 kWh/t glass waste. In the rotary dryer process, the residue was previously open air-dried to achieve 40 kg of water evaporated per ton of waste (4% humidity). According to [PERSON] [60], the typical rotary dryer (Figure 11) energy consumption with a capacity ranging from 30 to 80 kg water/h.m\({}^{3}\) varies from 4600 to 9200 kJ/kg evaporated water. Hence, with an average value of 6900 kJ/kg evaporated water, the total energy consumption was 0.276 MJ/kg for the dry waste glass. For a 20 m\({}^{3}\) dryer, considering the average capacity of 60 kg water/h\(\cdot\)m\({}^{3}\), it would be able to dry 1200 kg water/h, or about 9600 kg in an 8 h day, equivalent to 240 t of waste glass powder processed per day. To use the spray dryer, the waste needs to be in a pumpable condition.