Yazar
richard s engelbrecht
2 cilt bulundu.
Cilt sonuçları
Effect of phosphates on water treatment
Richard S. Engelbrecht · Sanitary Engineering Laboratory, University of Illinois
37 sayfa · 1958
Water / Purification / Phosphate removal
Biological treatment of petrochemical wastes
Richard S. Engelbrecht · University of Illinois, Dept. of Civil Engineering
92 sayfa · 1963
Activated sludge process / Biological treatment / Sewage / Purification