RESPONSE OF CYPRINUS CARPIO TO PHENOL AND FURFURAL SHOCK LOADS IN PACT SYSTEM

• Main Authors: A. Mesdaghinia, N. Djaafarzadeh, S. Nasseri
• Format: Article
• Language: English
• Published: Tehran University of Medical Sciences 1999-08-01
• Series: Iranian Journal of Public Health
• Subjects: Activated studge; Cyprius carpio; Oil refinery effluent; Shock load
• Online Access: http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/805.pdf&manuscript_id=805

Treatment efficiency, design factors and kinetic coefficients were studied using two pilots of activated sludge (AS) and powdered activated carbon technology (PACT), for treating Tehran Oil Refinery effluent, in a duration of more than 12 months In order to evaluate the performance of each system against growth inhibitor shock loads, different concentrations of phenol and furfural (10-300 mg/l) were applied, following a series of experiments in which, treated effluents from the two systems were used as influent water into two aquariums containing freshwater Common Carp (Cyprinus carpio) of 9-15g weight, 6-9 cm length and with a fish density of 5g/1. Results of fish fatal rates with 125 and 250-mg/l phenol were 16% and 38% for AS system and 5.6% and 8% for PACT system, respectively. Changing the growth inhibitor to furfural, with a concentration of 100 mg/I, led to the fatal rates of 100% and 0% for AS and PACT systems, respectively. Increasing furfural load to 300 mg/I destroyed only 20% of fish in PACT pilot.