Membrane bioreactors for the removal of pharmaceutical compounds from wastewater
摘要
Pharmaceutical compounds (PCs) such as antibiotics, anti-depressants, veterinary drugs, and steroids are present in wastewater effluents and surface water. The discharge of various PCs is a potential source of water pollution. The presence of these compounds in the water bodies harms aquatic life and human health. Conventional techniques for the remediation of pharmaceutical contaminants are complex and ineffective. In the remediation of PCs and COD from wastewater, membrane bioreactors (MBRs) have been proved to be superior to conventional treatment strategies. Sludge retention time, hydraulic retention time, pH, dissolved oxygen concentration and temperature are the major factors affecting the effectiveness and performance of MBRs. In this work, we have critically reviewed the MBRs for the effective removal of PCs from wastewater. The various factors affecting the effectiveness of MBRs have been summarized. MBRs based hybrid techniques for the enhanced removal of pharmaceutical residue and membrane fouling mitigation have been discussed.