【作者】 杨琨；

【导师】 刘杰；

【作者基本信息】 北京化工大学 ， 生态环境材料， 2007， 硕士

【摘要】 炭纤维因具有优异的生物相容性、较高的力学性能和耐蚀性能而能成为优良的生物膜载体。本工作的目的在于通过研究生物炭纤维载体的表面物化性质，载体表面固着的生物膜的形成机制，以及生物膜去除氨氮，COD，硫酸盐的能力，探讨载体表面性质，结构对生物膜形成、代谢的作用机制及其与腈纶水处理效果的关联，论证将炭纤维作为一种新型腈纶工业水处理的生物膜载体的可行性。本工作采用对比的研究方法，借助表面官能团、平衡含水率、结合红外光谱、扫描电镜较系统地研究了载体表面物化特性、结构特征对好氧菌、厌氧菌固着、增殖的影响。同时研究了硝化反应，缺氧-好氧反应，两相厌氧反应工艺中，不同载体上生物膜对腈纶废水的氨氮、COD、硫酸盐的去除率。结果表明：炭纤维比其它材料更易于固定微生物；炭纤维表面适量的含氧官能团、平衡含水率以及表面吸附性均有益于微生物的固着与繁衍，其中表面官能团对表面生物膜的活性变化具有明显影响；炭纤维对微生物的生长具有催化作用。此外，通过比较载体材料上生物膜在不同工艺中对腈纶工业废水的处理效果，说明炭纤维作为载体可有效的去除废水中的氨氮、COD、硫酸盐，从而为炭纤维在工业水处理中的应用发展提供了新思路和科学依据。更多还原

【Abstract】 Because of having excellent Biocompatibility, higher mechanicalcapability and corrosion resistance, carbon fiber can be a good carrier. Thisthesis aims at discussing the effects of surface characteristic and structure ofcarrier on the formation and metabolism of biofilm, the relationship with theeffect of wastewater treatment and the feasibility of using CF as new-stylebiofilm carrier through the study on chemical physical properties of biologicalcarbon fiber,the formation mechanism of biofilm and the capability of wipingoff N-NH₃., COD, SO₄^2-In this thesis, by means of contrast, surface functional groups and thewettability were measured, by using IR,, Scanning Electron Microscope,effects of surface property of carrier on immobilization. multiplication wassystematically studied.At the same time, in different processes,such asnitrify,anoxic- aerobic reaction and two phase anaerobic methods, thecapability of different carrier which wipe off N-NH₃., COD, SO₄^2- wasdiscussed. Results show that: the capability of fixing microorganism on CF isbetter than other materials. The surface acid functional groups, degree of moisture and adsorbability of carbon fiber is prone to multiplication ofmicroorganism and fixing microorganism on the surface of carrier. The surfacefunctional groups of material have an obvious effect up on the activity ofbiofilm. For the immobilization, carbon fiber is like catalyzer.Additionally, in different processes, by means of contrast the capability ofwiping off N-NH₃. COD, SO₄^2-. we consider that CF can be used as biofilmcarrier effectively, through comparing the expense and efficiency of differentbiofilm carrier. This thesis provides scientific ground and new thought for thedevelopment of the carrier.更多还原