CAJ | 학술논문

试验对比了不同离子交换树脂(CER)含量和pH条件下胞外聚介物(EPS)的提取效果差异.结果表明,EPS各组分提取浓度均随离子交换树脂用量增加而增加,但各组分趋势不同.TOC的最佳树脂剂量为100 g CER/g VSS,而蛋白质、多糖和DNA的最佳树脂剂量约为70 g CER/g VSS.pH值对TOC、DNA和多糖的提取浓度影响较小,但对蛋白质影响比较大.各提取条件下,EPS各组分提取浓度随时间的变化过程可以分为平稳增长期、快速增长期及稳定期.
시험대비료불동리자교환수지(CER)함량화pH조건하포외취개물(EPS)적제취효과차이.결과표명,EPS각조분제취농도균수리자교환수지용량증가이증가,단각조분추세불동.TOC적최가수지제량위100 g CER/g VSS,이단백질、다당화DNA적최가수지제량약위70 g CER/g VSS.pH치대TOC、DNA화다당적제취농도영향교소,단대단백질영향비교대.각제취조건하,EPS각조분제취농도수시간적변화과정가이분위평은증장기、쾌속증장기급은정기.
Different doses of cation exchange resin (CER) and different pH sludge solution were used to optimize the extraction efficiency of extracellular polymeric substances (EPS). The results showed that EPS extract concentration increased as CER dose increased, but there was different tendency in different components of EPS. The best CER dose for TOC was 100 g CER/g VSS. However, the best CER dose for protein, carbohydrate and DNA was 70 g CER/g VSS. It was clear that pH value had less effect on TOC, carbohydrate and DNA, but had more influence on protein. EPS extraction process can be separated as three stages: flat increased stage, rapid increased stage and stabilized stage.