| 聚乙烯醇包埋活性炭与微生物的固定化技术及其对水胺硫磷降解的研究 |
| 摘要点击 798 全文点击 1239 修订日期：1993-09-17 |
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| 中文关键词 固定化微生物 聚乙烯醇 活性炭 水胺硫磷 有机磷农药 |
| 英文关键词 isocarbophos immobilized microorganism PVA activated carbon organophosphorus pesticides |
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| 中文摘要 |
| 提出聚乙烯醇包埋活性炭与微生物的固定化技术,给出较好的制备工艺,并对有机磷农药水胺硫磷的降解进行了试验研究。结果表明,经固定的微生物对温度、pH值和水样水胺硫磷浓度的适应范围扩大。在3个月连续试验中,若水样初始CODCr浓度为1300-2500mg/L,停留时间24h,在恒温摇床(30℃,150r/min)内降解,其去除率为55%-72%. |
| 英文摘要 |
| A technology has been developed for immobilizing microorganism on an activated carbon which has been entrapped by using polyvinyl alcohol(PVA)as an entrapping agent. The preferable preparation processes were given for such an immobilization. The trial study on application of this technology to degradation of isocarbophos, an organophosphorus pesticide,was conducted.The results show that the immobilized microorganism can be effective in a wider range of temperatures, pH values, and concentrations of isocarbophos in water. During a 3 month period of continuous operation,55%-72% of the pesticide were removed from water if it had an initial concentration of 1300-2500mg/ L by CODCr in water and was degraded in a thermostatic vibratile table(30℃,150rpm)for 24 hours(HRT). |
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