Ozone pre-oxidation of a textile industry wastewater for acute toxicity removal
9th International Conference on Environmental Science and Technology, Rhodes Isl, Yunanistan, 1 - 03 Eylül 2005, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası:
- Basıldığı Şehir: Rhodes Isl
- Basıldığı Ülke: Yunanistan
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Hayır
Özet
The present work evaluates pre-ozonation for removal of acute toxicity from a raw textile wastewater sample taken from the process wastewater balancing tank. Toxicity was monitored using Daphnia magna. A low ozone flow rate (9.6 mg/min) was applied at original pH of the wastewater. The effect of pH varying form 5 to 11 and the H2O2 dose of 600 mg/l on ozonation to remove toxicity were also investigated. The samples were filtered through 0.45 mu m membrane filter (Millipore) for measuring toxicity, COD, in APHA Pt-Co (platin-cobalt) unit and absorbance at 450, 500 and 550 nm wave lengths.