Integrated Systems for Removal of BPA from Wastewater
- 304 Downloads
There is an increasing interest in the combined methods of BPA removal from wastewater that involve mostly the integration of chemical and biological approaches, in which the conventional biological treatment is supported by Advanced Oxidation Processes (AOPs) such as photocatalysis, ozone oxidation, Fenton and photo-Fenton oxidation, and wet air oxidation (WAO). These chemical treatments, used to break down BPA to molecules suitable for biotreatment, have been developed mostly to improve the recycling and re-use of wasted sludge. The pre-treatment enhances the hydrolysis of sludge, which reduces the stabilization time and increases the degree of degradation during biological treatment. Wasted sludge pre-treatments rupture suspended solids (microbial cells), liberate the nutrients, partially solubilize the suspended solids, increase the soluble chemical oxygen demand and decrease sludge viscosity. In addition, the utilization of membranes for polishing biological secondary effluent and for supporting AOPs has been reported. These integrated methods have been applied to increase the biodegradability, improve the quality and detoxify the effluent streams. They are considered advantageous for water reuse that requires high efficiency of pollutant removal. This chapter aims at providing a review on the integration of different treatment approaches which have been described as favorable for the acquisition of high-quality effluent.
KeywordsAdvanced Oxidation Processes (AOPs) Soluble Chemical Oxygen Demand photo-Fenton Oxidation Sludge Conventional Biological Treatment
- Torres RA, Abdelmalek F, Combet E et al (2006) A comparative study of ultrasonic cavitation and Fenton’s reagent for bisphenol A degradation in natural waters. In: 1st European conference on environmental applications of advanced oxidation processes, e-proceedings, Chania Crete, Greece, September 2006Google Scholar