| Title |
Evaluation of Organic Matter Removal by Water Treatment Processes using Nakdong River Water |
| Authors |
배은영(Eun Young Bae),류동춘(Dong Choon Ryu),김상구(Sang Goo Kim),손희종(Hee Jong Son),나영신(Young Shin Na),송미정(Mi Jeong Song),최동훈(Dong Hoon Choi) |
| Abstract |
We have researched removal of organic matters as DOC, THMFP and UV254 with pre-ozonation. filtration, post-ozonation and 3 kinds of granular activated carbon(GAC) by using the Nakdong river`s water for evaluating removal characteristics of organic matters on each treatment process. UV-254/DOC(SUVA) and THMFP/DOC(STHMFP) can be valuable parameters for evaluating each processes and finding more effective process by comparing the removal of specific organic and DOC before and after treatment. The removal of DOC. THMFP and UV-254 by pre-ozonation are 0%, 25%, 30% and by filtration are 33%, 52%, 46% and by post-ozonation are 7%, 7%, 36% and residual rate of SUVA and STHMFP by pre-ozonation are 0.68. 0.75 and by filtration 0.8, 0.79 and by post-ozonation 0.69, 1.0 respectively. The reason of higher removal of THMFP and UV-254 than DOC is hydrophobic organic matters are more easily removed by ozonation and coagulation than hydrophilic organic matters. The removal of DOC are 21%, 26%, 21% and THMFP are 27%, 40%. 30% and UV-254 are 22%, 26%, 14% and residual of SUVA are 1.0, 0.91, 1.1 and STHMFP are 0.97, 0.83, 0.93 by coconut, coal, wood base GAC. Residual of SUVA are over than 1.0 by coconut, wood base GAC treatment because UV-254 could not be easily removed by biomass on the surface of GAC but residual of SUVA is lower than 1.0 treated by coal base GAC treatment because UV-254 can be easily adsorbed into the residual pore. |