The Removal of Ammonia Nitrogen in Sewage by Hollow Fiber Bioreactor

羟基化聚磺酸电话空洞纤维（端口尺寸0.2微米）已用作细菌非流动化的补充。The nitrification and denitrification bacteria solated from sewage treatment plant were immobilized as in film on the surface of the hollow fibers。空心纤维生物反应器有可能将氧气从纤维的复合体侧面供应到表面细菌，并具有相容的容量值（KLa）当氧气转移到水中1 70 h^<-1>。持续的硝化作用以18毫克-N/小时的加载速率排出。硝酸盐速率增加到氨硝基化合物的集中程度，以及与硝酸盐相关的氨硝基化合物的依赖性，如以下所示。γ = 103 C^<0.142>该速率也受到氧铵的内部影响。高效率在0.2 MPa以上的压力下达到了高效率。在另一只手上，比率被承受的BOD所抵消。It wa（It wa） ... More s认为BOD氧化细菌具有较高水平的BOD上的优势。在集成和高效率的空心纤维生物反应器是由KLa的高价值的综合效应造成的。驱动力的力量。（C^\*&gt;-O in oxygen diffusion at high air pr\and the high value of the effectiveness factor （\） of immobilized biocatalist。脱质细菌也在其表面的空心纤维中不移动，通过该介质的PVA。按比例计算，TOC比率增加，在乙醇、甲醇和乙醇胺的情况下，TOC比率达到最大值（1 30毫克-牛顿·h）为1.0。这是由脱氧反应中的灰尘测量引起的。硝酸浓度（C）对去除率（r）的依赖性已被调查。找到了最好的适合如下的等式， r = 1.15 C^&lt;0， 77&gt;空心纤维反应堆的降解能力在不同范围内对废水浓缩（500毫克-牛顿/升）有效。在这项研究中，空心纤维反应堆被确定为287毫克/升·h的最高脱氧率。这本小说的空心纤维反应堆被认为是对去除废水中的硝酸盐非常有效的，并使用现场测试进行了真正的洗涤转移到洗涤工厂。在安装了连续脱氧/硝化反应器的实验室中，硝化速率为140毫克-N/l·h，硝化速率为120毫克-N/l·h，已被发现并具有80%的脱氧效率和100%的硝化效率。Less（低）

The hydrophilized polysulphone hollow fiber (pore size 0.2 μm) was used as supports for immobilization of the bacteria. The nitrification and denitrification bacteria isolated from sewage treatment plant were immobilized as thin film on the surface of the hollow fibers. The hollow fiber bioreactor was possible to supply the oxygen to the surface bacteria from the imer side of the fiber by diffusion, The capacity coefficient value (KLa) when the oxygen was transferred to the water attained 1 70 h^<-1>. Continuous nitrification was carried out at a loading rate of 18a mg-N/h. The nitrificatian rate increased in proportion to the concentration of ammonia nitrogen, The dependenee of ammonia nitrogen concentration on the nitrification rate correlated as follow.γ = 103 C^<0.142> The rate was also affected by oxygen amounts supplied from inner side of the hollow fiber. The high efficiency was attained at pressure of over 0.2 MPa. On the other hand, the rate decreased by the soluble BOD. It wa … More s considered that BOD oxidation bacteria had advantage over the nitrification bacteria at high level of BOD. In conclusion, high efficiency of the hollow fiber bioreactor was brought about by the synergistic effects of the high value of KLa, the large. driving force. (C^<*>-O in oxygen diffusion at high air pressure and the high value of the effectiveness factor (η) of immobilized biocatalist. The denitrification bacteria were also immobilized on the surface of the hollow fiber through the medium of PVA. The rate increased in proportion to the TOC ratio, and was attained to maximum (1 30mg-N・h) at 1.0 of TOC ratio in case of ethanol, methanol and ethanolamine. This was assumed by stoichiometry in the denitrification reaction. The dependence of nitrate concentration (C) on the denitrification rate (r) was investigated. Best fit was found for the equation as follow, r = 1.15 C^<0, 77> The denitrification ability of hollow fiber reactor was effective in wide range of nitrate concentration (500mg-N/l) of waste water. The hollow fiber reactor in this research indicated the highest denitrification rate of 287 mg-N/l・h. This novel hollow fiber reactor was considered very effective for removal of nitrate in the waste water.The field test using the true sewage carried out at the sewage plant. In the empirical plant installed the continuous denitrification/nitrification reactor, 140mg-N/l・h of nitrification rate and 120mg-N/l・h of denitrification rate were obtained and the denitrification efficiency of 80% and the nitrification efflciency of 100% attained. Less