D a i l y l o a d i n g = 300 L d × 187.5 m g L ÷ 1000 2 = 0.056 k g B O D / d {\displaystyle Daily\ loading=300\ {\frac {L}{d}}\times 187.5\ {\frac {mg}{L}}\div 1000^{2}=0.056\ kgBOD/d}