摘要
利用7种常见包埋固定化方法,筛选出以聚乙烯醇-海藻酸钠-硼酸包埋法作为最佳固定化包埋方法;对该方法进行优化,制备生物吸附剂的最佳配方:10%的PVA溶液;1%的海藻酸钠溶液;剩余活性污泥(淡水藻类)20%;1.0%的CaCl2溶液;50.0 mol/L的OP乳化液的饱和溶液H3BO3溶液;10%的Na2CO3溶液调节pH至6.7;3 mm左右的球形颗粒;固定化4 h以上,蒸馏水洗净。初步应用固定化空白小球和固定化WAS和固定化淡水藻吸附剂进行吸附Pb2+、Hg2+试验,效果较为显著。
Of 7 kinds of common embedment immobilized technologies,the best embedment immobilized technology,using polyvinyl alcohol（PVA）-sodium alga acid-boric acid,was screened out.With the optimal technology,the best prescription of biosorbent preparation was 10% of the PVA solution,1% of the sodium alga acid solution,20% of the remnant active silt（fresh water algae）,1.0% of the CaCl2 solution,50.0 mol/L LOP of emulsification saturated H3BO3 solution,and 10% of the Na2CO3 solution adjusted to a pH value to 6.7.The diameter of the spherical particle was 3 mm,the immobilization time was more than 4 hours,and the particle was cleaned with distilled water afterwards.The blank immobilized small ball,immobilized WAS,and fresh water algae adsorbent was applied to adsorb Pb2＋ and Hg2＋ in a preliminary experiment.The results were significant.
出处
《水资源保护》
CAS
2011年第2期58-62,共5页
Water Resources Protection
基金
江苏省建设系统科技项目(JS2010ZD08)
国家自然科学基金(40872154)
关键词
泥藻
固定化方法
生物吸附剂
配方
silt algae
immobilized technology
biosorption agent
prescription
作者简介
程东祥（1977-），男，江苏淮安人，讲师，博士，主要从事水污染控制和治理方面的研究工作。E-mail：1024304566@qq．com
