|
DOI : , Vol.12, No.2, 9 ~ 17, 2004
|
| Title |
| A Study on Treatment of Wastewater Effluent and Volume Reduction of Waste Sludge by Ozone Treatment |
| 강용태 Yong Tae Kang , 조용현 Yong Hyun Cho , 장성부 Sung Pu Chang , 최선영 Sun Young Choi |
|
|
|
| Abstract |
| Nowadays, most of water source is deteriorating due to depending on surface water more than 90%. New disinfection facilities are urgent because a provision of total coliforms was made newly and have gone into effect since in January 2003 for securing of water source . And waste sludge treatment is an outstanding environment question because of several reasons such as increases of waste sludge, high cost of waste sludge treatment and prohibition of sludge treatment method having been utilized. In this study, specific characteristics of ozone treatment for wastewater effluent and volume reduction of waste sludge were studied with pilot-plant. The results of the study are followed ; A removal efficiencies of total-coliforms with ozone dose change of 1.6, 2.6, 3.5, 4.5gO₃/m³Water were 73.7, 88.1, 95.6, 97.2% ,respectively. And MLSS reduction rate of waste sludge with ozone dose change of 0.2, 0.4, 0.6, 0.8gO₃/gSS were 38.0, 50.0, 57.9, 62.0% ,respectively. COD_(Mn) removal efficiency of that was 50.5 65.0, 76.6, 82.1% respectively and SV_(30) reduced 92.6% even if ozone dose was 0.2gO₃/gSS. Therefore, it is found that ozone treatment is very effective for sludge volume reduction and solid liquid separation. |
|
|
| Key Words |
| disinfection, ozone treatment, total-coliforms, MLSS, SV30 |
|
|
|
|
|
PDF