An immobilized Thiobacillus thioparus biosensing system formonitoring sulfide hydrogen; optimized parameters in a bioreactorMaryam Mirzaeia,b, Ghassem Amoabedinya,b,∗, Fatemeh Yazdianc,b,Mojgan Sheikhpourb, Ehsan Ebrahimia,b, Bahman Ebrahimi Hossein ZadehcaDepartment of Chemical Engineering, Faculty of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, IranbResearch Center for New Technologies in Life Science Engineering, University of Tehran, P.O. Box 63894-14179, Tehran, IrancDepartment of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, P.O. Box 14395-1561, Tehran, Iran