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입상활성탄 및 생물여과 공정에서 활성탄 종류별 DOC(dissolved organic carbon) 흡착능은 석탄계가 가장 우수한 것으로 나타났고, 다음으로 야자계, 목탄계 순으로 조사되었으며, 활성탄 종류별 부착 미생물의 생체량과 활성도는 석탄계에서 가장 높게 나타났으며, 다음으로 목탄계, 야자계, 안트라사이트 순으로 나타났다. 안트라사이트를 이용한 생물여과 공정에서 NOM(natural organic matters)의 생분해율은 15분 이상의 EBCT(empty bed contact time)가 주어져야 bed volume에 따라 평균 10~17%, 최대 18~24% 정도의 생분해율을 얻을 수 있었다. NOM의 활성탄 흡착은 주로 친수성 보다 소수성 유기물질과 10,000 Da 이하의 유기물질의 제거가 용이하였으며, HAA5FP(haloacetic acid 5 formation potential) 보다 THMFP(trihalomethane formation potential), BDOC(biodegradable dissolved organic carbon)rapid 보다는 BDOCslow의 제거가 용이한 것으로 조사되었다. 생물여과 공정에 의한 유기물질 제거 특성은 주로 친수성과 1,000 Da 이하의 유기물질 제거가 용이하였으며, THMFP 보다는 HAA5FP, BDOCslow 보다는 BDOCrapid의 제거가 용이한 것으로 조사되었다.


We have studied NOM(natural organic matters) adsorption and biodegradation on 3 kinds of activated carbon and a anthracite. Coal based activated carbon showed the highest DOC(dissolved organic carbon) adsorption capability and coconut(samchully), wood (pica) in the order among the 3 kinds of activated carbon(F400). The biomass amount and activity also showed on coal, wood and coconut based activated carbon in the order. Over 15 minutes EBCT(empty bed contact time) needed to achieve 10 to 17% average removal efficiency and 18~24% maximum removal efficiency of NOM biodegradation in biofilter using anthracite. Hydrophobic and below 10,000 dalton NOM was much easier to adsorb into the activated carbon than hydrophilic NOM, THMFP(trihalomethane formation potential) and BDOC (biodegradable dissolved organic carbon)slow were much easier than HAA5FP(haloacetic acid 5 formation potential) and BDOCrapid to adsorb into the activated carbon. Hydrophilic and below 1,000 dalton NOM was much easily biodegraded and HAA5FP and BDOCrapid was easier than THMFT and BDOCslow to biodegrade in the biofilter.


We have studied NOM(natural organic matters) adsorption and biodegradation on 3 kinds of activated carbon and a anthracite. Coal based activated carbon showed the highest DOC(dissolved organic carbon) adsorption capability and coconut(samchully), wood (pica) in the order among the 3 kinds of activated carbon(F400). The biomass amount and activity also showed on coal, wood and coconut based activated carbon in the order. Over 15 minutes EBCT(empty bed contact time) needed to achieve 10 to 17% average removal efficiency and 18~24% maximum removal efficiency of NOM biodegradation in biofilter using anthracite. Hydrophobic and below 10,000 dalton NOM was much easier to adsorb into the activated carbon than hydrophilic NOM, THMFP(trihalomethane formation potential) and BDOC (biodegradable dissolved organic carbon)slow were much easier than HAA5FP(haloacetic acid 5 formation potential) and BDOCrapid to adsorb into the activated carbon. Hydrophilic and below 1,000 dalton NOM was much easily biodegraded and HAA5FP and BDOCrapid was easier than THMFT and BDOCslow to biodegrade in the biofilter.