论文部分内容阅读
以海南椰壳为原料，经一次炭化、成型、再炭化，制得炭膜。研究了原料椰壳的热解特征，考察了炭膜制备工艺条件对炭膜分离性能的影响，并对炭膜用于细菌分离的过程进行了初步的探索。结果表明：椰壳热解在４５０℃左右已趋于完全，进一步提高温度有助于炭化物孔结构的改善。炭膜的分离性能与成型压力、粘结剂含量等工艺条件有关。所制炭膜的最大孔径范围为：０．５μｍ～１．０μｍ，分离过程属微滤。通过对水中细菌（０．５×１．５μｍ～１．８μｍ）分离实验结果表明：炭膜可有效截留细菌，且炭膜本身容易再生利用
Hainan coconut shell as raw material, after a carbonization, forming, re-carbonization, obtained carbon film. The pyrolysis characteristics of the raw material coconut shell were studied. The influence of the preparation conditions of the carbon film on the separation performance of the carbon film was investigated. The process of carbon membrane separation for bacteria was also explored. The results show that pyrolysis of coconut shell tends to be complete at about 450 ℃, further improving the temperature will help to improve the pore structure of the carbide. Carbon film separation performance and molding pressure, binder content and other process conditions. The carbon membrane made of the largest pore size range: 0.5μm ~ 1.0μm, the separation process is microfiltration. The results of the experiment on separating bacteria in water (0.5 × 1.5μm ~ 1.8μm) show that the carbon membrane can effectively retain bacteria and the carbon membrane itself can be easily recycled