By　using　the　reverse　osmosis　technology,　Natural　organic　matter　(NOM)　was　concentrated　from　Songhua　River.　The　fractions　of　NOM　(Hydrophobic　fraction-HyO,　Hydrophilic　fraction-HyI,　Humic　acid-HA,　Fulvic　acid-FA)　were　fractionated　with　XAD　resin.　A　commercial　humic　acid　was　further　selected　for　comparison.　The　characteristics　modification　of　CHA,　NOM　and　its　fractions　after　ozonation　(1mg/L　O3),　coagulation　(30mg/L　Al2(SO4)　318H2O)　and　adsorption　(-Al2O3　1.0gL1)　were　also　investigated.　The　results　revealed　that　the　treatability　with　coagulation　and　adsorption　was　greater　for　the　more　aromatic　CHA　and　the　hydrophobic　compounds　(HA,　HyO,　FA)　of　NOM,　from　which　the　most　aromatic　organic　carbon　was　removed.　Except　for　the　CHA,　NOM　and　its　fractions　cannot　be　mineralized　with　1mg/L　O3.　With　the　removal　of　aromatic　and　large　molecular　weight　fraction　by　coagulation　and　adsorption,　the　remained　components　of　NOM　and　its　fractions　still　had　a　complex　structure　and　showed　unfeatured　UV　spectra.　The　difficulties　to　disposal　make　the　HyI　a　non-negligible　quantity　in　water　treatment　process.　©　2011　IEEE.