One million liters per day $\text{(MLD)}$ of wastewater with a soluble $\text{BOD}$ of $200 \mathrm{mg} / \mathrm{L}$ is treated in an activated sludge process. The $\text{BOD}$ of treated wastewater is $20 \mathrm{mg} / \mathrm{L}$. The observed yield coefficient of the biological system is $0.35$.
The daily biomass generation in the system is _________ $\mathrm{kg}$ $\text{(an integer value)}$.
