The Degradation Potential of Some Fungal Isolates on Various Types of Waste Water

Abstract

The objective of this study was to determine the degradation activity of a number of isolated fungi (Aspergillus niger, Aspergillus fumigates and Mucor spp) against various types of wastewater. Waste water Samples were collected in sterile bottles from two places (CAPO Company and wastewater treatment plant in Haj Yousif), in October 2016. Metals and heavy metals were measured in wastewater samples before and after treatment by tested isolated fungi. Results showed increased reduction in Chemical oxygen demand (BOD) after treatment of CAPO CO. wastewater (96.23 %) rather than in Haj Yousif region (44.00 %). Chemical oxygen demand (COD) exhibited more reduction after treatment of CAPO CO wastewater (95.7 %) rather than Haj Yousif region which increased by 18.81 %. Total suspended solids (TSS) reduced after treatment of CAPO CO. wastewater by 75 % while in Haj Yousif region the reduction was 25 %. Moreover, no change was observed in Total dissolved Solids (TDS) after treatment of both CAPO CO. wastewater and Haj Yousif region (0 %). Similarly, no change was observed in NH3 content after treatment of CAPO CO. and Haj Yousif region (36.66 %). PO4/P, CL-, SO-24, Fe+++, Pb+2, and Cr+2 were reduced after treatment of CAPO CO wastewater (%49.23), While in Haj Yousif region were decreased as follows (-2.89, -11.12, -106.04, and -200) respectively. Cu+2 quantity reduction was increased after treatment of CAPO CO wastewater (97 %) more than in Haj Yousif region (6.25 %). Cd+2 in Haj Yousif region was increased (49.23 %), but in Capo CO wastewater was not detected (ND). The present study demonstrated the efficiency of these tested microorganisms to degrade the heavy metals.