International Symposium on Ozone for Water and Wastewater Treatment Inernational Symposium on Ozone for Water and WastewaterTreatment 1st International Symposium on Ozone for Water and Wastewater Treatment. = Chemistry of ozone in water and wastewater treatment Ozonization manual for water and wastewater treatment. = Activated carbon for water and wastewater treatment Novel reagent of ferrate for water and wastewater treatment Membrane technology in water and wastewater treatment Ultrasound in water and wastewater treatment Models for water and wastewater treatment