Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ozonation and BDOC removal: effect on water quality
Batch experiments indicate biological treatment improves overall water quality and reduces biological regrowth.
Batch experiments were conducted to determine the effect of several ozone dosages and biological treatment on a surface water. Total organic carbon (TOC) concentration, chlorine demand, bacterial regrowth, and disinfection by‐product (DBP) formation were measured after ozonation and after subsequent biodegradation. TOC removal increased with ozone dosage, but the extent of removal from biodegradation alone leveled out after an ozone dose of 1 mg O3/mg TOC. Chlorine demand reduction was highly correlated with the TOC removal, and chlorine residuals were maintained significantly longer in ozonated and biologically treated water, compared with water treated with ozone alone. Biological organic carbon removal delayed bacterial regrowth in chlorinated water, and DBP formation was reduced for ozone doses at or below 3 mg O3/mg TOC. Although higher chlorine residuals were maintained in the biologically treated water, higher DBP concentrations were not produced, indicating that biological treatment reduced DBP precursor levels.
Ozonation and BDOC removal: effect on water quality
Batch experiments indicate biological treatment improves overall water quality and reduces biological regrowth.
Batch experiments were conducted to determine the effect of several ozone dosages and biological treatment on a surface water. Total organic carbon (TOC) concentration, chlorine demand, bacterial regrowth, and disinfection by‐product (DBP) formation were measured after ozonation and after subsequent biodegradation. TOC removal increased with ozone dosage, but the extent of removal from biodegradation alone leveled out after an ozone dose of 1 mg O3/mg TOC. Chlorine demand reduction was highly correlated with the TOC removal, and chlorine residuals were maintained significantly longer in ozonated and biologically treated water, compared with water treated with ozone alone. Biological organic carbon removal delayed bacterial regrowth in chlorinated water, and DBP formation was reduced for ozone doses at or below 3 mg O3/mg TOC. Although higher chlorine residuals were maintained in the biologically treated water, higher DBP concentrations were not produced, indicating that biological treatment reduced DBP precursor levels.
Ozonation and BDOC removal: effect on water quality
Cipparone, Lori A. (Autor:in) / Diehl, Alicia C. (Autor:in) / Speitel, Gerald E. Jr. (Autor:in)
Journal ‐ American Water Works Association ; 89 ; 84-97
01.02.1997
14 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Temperature Effects on Kinetics of BAC in Removing BDOC Formed During Ozonation
| British Library Conference Proceedings | 1998
Characteristics of micropollutants by ozonation and treatment of BDOC in the Nakdong river
| British Library Conference Proceedings | 1996
Characteristics of micropollutants by ozonation and treatment of BDOC in the Nakdong river
| Online Contents | 1996
Effects of Conventional Treatment on AOC and BDOC Levels
| Wiley | 2002