%0 Journal Article %T Implication of statistical design approach methodology for optimization of COD removal, effluent quality, and biosludge settling properties in aerobic bioreactors %A Zeynali, Vahid %A Sargolzaei, Javad %A Amin Hedayati Moghaddam %A Masoudi, Seyed Mohammad Ali %J Environmental Progress and Sustainable Energy %@ 1944-7442 %D 2017