الفهرس | Only 14 pages are availabe for public view |
Abstract This study aimed to investigate an integrated system that can deal with different pharmaceutical wastewater. Pharmaceutical wastewater was subjected to biological, chemical, and advanced oxidation according to its pollutant’s nature. Wastewater with low Total Suspended Solids and Phenol was directly subjected to biological treatment. Wastewater with high Total Suspended Solids (TSS 480 mg/l) was subjected to a conventional chemical treatment process utilizing different coagulants. The best results obtained by using Calcium Oxide and Alum aided with Calcium Oxide where, the removal efficiency of Chemical Oxygen Demand (COD) was 46.8% and 51 %. Highly loaded pharmaceutical wastewater with COD 9700 mg/l and Biological Oxygen Demand (BOD) of 1500 mg/l had been subjected to Fenton oxidation, removal of COD reached 80.4%, and the ratio of BOD/COD is enhanced to 0.6. Photocatalysis by using different nanomaterials was applied to pharmaceutical wastewater containing 10 mg/l of phenols. Phenol is completely removed by using Mesoporous TiO2 after 90 min irradiation and after 120 min in the case of TiO2/P25 and TiO2/UV 100 nanocomposites while it is removed by 40% in case of using Mesoporous TiO2/Ta2O5. Effluent treated water from previous routes was subjected to biological treatment and then followed with disinfection by using UV as post-treatment. |