... Tomato wastewater, COD = 300 mgL 1 , pH = 6.5–7.8, 17 18 ºC, 20 Lh 1 7.66 × 10 6 b5. 91 × 10 692 Ozone wastewater Tomato wastewater, COD = 500 mgL 1 , pH = 6.5–7.8, 17 18 ºC, 35 Lh 1 7.05b6.99 ... Corresponded to Ozone- Buffered Water and Ozone- Tomato Wastewater Systems a Ozone System System Characteristics He ؋ 10 –6kLa ؋ 10 2Reference Ozone- buffered water pH 7, 12 ºC, I = 0. 01 M, Phosphate ... acidic-alkaline cycles, min: ∇ =12 0-0 , ᭛= 0 -1 20 ∆ =1 0 -1 10 , ⅙=2 0 -1 00, ▫=3 0-9 0.From Beltrán, F.J., García-Araya, J.F., and Álvarez, P., pH Sequential ozonation of domestic and wine distillery wastewater, ...