CAJ | 학술논문

考查反渗透（RO ）膜处理渗滤液前所采用的预处理工艺对致膜有机污染物的去除效果，为RO膜预处理工艺的选择提供参考，采用同步荧光光谱、三维荧光光谱、紫外-可见全光谱对某垃圾焚烧厂渗滤液原液及其经“生化（UASB＋A/O）＋超滤”预处理工艺各级出水进行不同分子量分布区间的分析。同步荧光光谱表明，预处理工艺总体能有效去除波长在250～320 nm各分子量区间的以及波长＞320 nm、分子量＞1KDa的DOM ；三维荧光光谱表明，预处理工艺总体能有效去除低激发波长类酪氨酸、低激发波长类色氨酸及高激发波长类色氨酸及分子量＞1KDa的类富里酸和高激发波长类酪氨酸；紫外-可见全光谱表明，预处理工艺总体能有效去除分子量＞1KDa带π-π*跃迁的DOM 和各分子量区间的带多个共轭体系苯环结构的DOM。结果显示，将“生化（UASB＋A/O）＋超滤”组合工艺作为RO膜法处理焚烧厂渗滤液的预处理工艺时，还需加强同步荧光范围＞320 nm、分子量＜1 KDa、带π-π*跃迁的类富里酸及高激发波长类酪氨酸的去除。
고사반삼투（RO ）막처리삼려액전소채용적예처리공예대치막유궤오염물적거제효과，위RO막예처리공예적선택제공삼고，채용동보형광광보、삼유형광광보、자외-가견전광보대모랄급분소엄삼려액원액급기경“생화（UASB＋A/O）＋초려”예처리공예각급출수진행불동분자량분포구간적분석。동보형광광보표명，예처리공예총체능유효거제파장재250～320 nm각분자량구간적이급파장＞320 nm、분자량＞1KDa적DOM ；삼유형광광보표명，예처리공예총체능유효거제저격발파장류락안산、저격발파장류색안산급고격발파장류색안산급분자량＞1KDa적류부리산화고격발파장류락안산；자외-가견전광보표명，예처리공예총체능유효거제분자량＞1KDa대π-π*약천적DOM 화각분자량구간적대다개공액체계분배결구적DOM。결과현시，장“생화（UASB＋A/O）＋초려”조합공예작위RO막법처리분소엄삼려액적예처리공예시，환수가강동보형광범위＞320 nm、분자량＜1 KDa、대π-π*약천적류부리산급고격발파장류락안산적거제。
In order to examine the removal of organic matter in the leachate which results in reverse osmosis (RO) membrane fouling ,and to provides a reference to select appropriate pretreatment processes of RO ,synchronous-scan fluorescence ,three-di-mensional excitation emission matrix fluorescence spectroscopic and UV-Vis spectrum of the dissolved organic matter (DOM ) in different molecular weight range in effluent from each leachate process of “biochemical (UASB+A/O)and UF” pretreatment in some incineration plant were examined .The results of synchronous fluorescence spectra analysis showed that DOM in the wave-length range of 250~320 nm with all the molecular weight and in the wavelength>320 nm with molecular weight>1 KDa was removed obviously by the pretreatment processes .The results of three-dimensional excitation-emission matrix (3D-EEM ) fluo-rescence spectra showed that the pretreatment processes removed low-excitation wavelength tyrosine-like ,low-excitation wave-length tryptophan-like and high-excitation wavelength tryptophan-like with all the molecular weight off ,and fulvic-like matter and high-excitation wave length tyrosine-like with molecular weight>1 KDa effectively .The results of UV-Vis spectra analysis showed that the pretreatment processes removed DOM of molecular weight >1 KDa withπ-π* transition and DOM of all molec-ular weight with conjugated system of the benzene ring structure .It was concluded that the removal of both fulvic-like matter and high-excitation wave length tyrosine-like with the wavelength>320 nm ,molecular weight<1 KDa and withπ-π* transition should be strengthened for controlling (RO) membrane fouling ,when leachate was treated by RO with the pretreatment proces-ses of “biochemical(UASB+A/O)and UF”.