CAJ | 학술논문

分别在光照和无光条件下,通过模拟实验考察不同活性(有活性和无活性)和不同形态(聚集态和分散态)的自然水体生物膜生成 H2 O2并降解十二烷基苯磺酸钠(DBS)的规律和机理。结果表明：具有生物活性的自然水体生物膜在光照和无光条件下均能生成一定量的H2 O2；生物膜的形态影响 H2 O2生成和 DBS 降解,其中聚集态生物膜 H2 O2生成量相对较多,DBS降解较少；光照促进生物膜生成 H 2 O 2,进而促进DBS降解。
분별재광조화무광조건하,통과모의실험고찰불동활성(유활성화무활성)화불동형태(취집태화분산태)적자연수체생물막생성 H2 O2병강해십이완기분광산납(DBS)적규률화궤리。결과표명：구유생물활성적자연수체생물막재광조화무광조건하균능생성일정량적H2 O2；생물막적형태영향 H2 O2생성화 DBS 강해,기중취집태생물막 H2 O2생성량상대교다,DBS강해교소；광조촉진생물막생성 H 2 O 2,진이촉진DBS강해。
Effects of activity (active and inactive)and existing form (aggregation state and dispersed state)of natural biofilms on the generation of H2 O2 by the biofilms,and on the degradation of sodium dodecyl benzene sulfonate (DBS,used as a representative of degradable organic pollutant),under illumination or in darkness,were investigated through a serie of simulation experiments.Mechanisms of the H2 O2 generation and DBS degradation by different states of natural biofilm under different conditions were also discussed.The results indicate that natural biofilms with biological activity can generate a certain amount of H2 O2 under light or in darkness;the existing form of biofilms has an impact on both H2 O2 generation and DBS degradation,and biofilms in aggregation state generate more H2 O2 and degrade less DBS;light promotes not only the generation of H2 O2 from the biofilms, but also the degradation of DBS.