The aim of this study was the photodegradation of two endocrine disruptors namely polybrominated diphenyl  ether (PBDE) and  etinilestradiol (17 alfa-etinilestradiol, EE2)  using ZnO/Graphene nanocomposite. The effects of endocrine disruptors concentration, nanocomposite concentration, photodegradation time, temperature and pH, and sun ligth powers on the yields of polibrominated diphenyl  ether (PBDE) and  etinilestradiol (17 alfa-etinilestradiol, EE2)  were investigated. For maximal photodegradation of polibrominated diphenyl  ether (PBDE) and  etinilestradiol (17 alfa-etinilestradiol, EE2) (99%) the optimal operational conditions should be as follows: nanocomposite ,polibrominated diphenyl  ether (PBDE) and  etinilestradiol (17 alfa-etinilestradiol, EE2) concentrations were  1,4 mg/L, 300 mg/L,respectively. The photodegradation time, temperature , pH, and sun light  should be 20 min,  25 °C temperature,  pH=7 pH  and 30 watt/m2’dir.The photodegradation kinetic was zero for  300 mg/L polibromlu difenil eter (PBDE) and etinilestradiol (ya da 17 alfa-etinilestradiol, EE2) konsantrasyonunda with k0 = 0,00311 day-1 and R2= 0,994077.

Prof. Dr. Delia Teresa Sponza is currently working as a professor at Dokuz Eylül University, Department of Environmental Engineering. Scientific study topics are; Environmental engineering microbiology, Environmental engineering ecology, Treatment of fluidized bed and activated sludge systems, Nutrient removal, Activated sludge microbiology, Environmental health, Industrial toxicity and toxicity studies, The effect of heavy metals on microorganisms, Treatment of toxic compounds by anaerobic / aerobic sequential processes, Anaerobic treatment of organic chemicals that cause industrial toxicity and wastewater containing them, Anaerobic treatability of wastewater containing dyes, Treatment of antibiotics with anaerobic and aerobic sequential systems, Anaerobic and aerobic treatment of domestic organic wastes with different industrial treatment sludges, Treatment of polyaromatic compounds with bio-surfactants in anaerobic and aerobic environments, Treatment of petrochemical, Textile and olive processing industry wastewater by sonication, Treatment of olive processing industry wastewater with nanoparticles and the toxicity of nanoparticles. She has many international publications  with an H index of 42 and 6000 citations.