给水处理活性炭选择标准的实例探讨

活性炭的选型对于去除水中有机物非常重要。通过为某厂给水处理选用活性炭，研究了国标GB／T7701．4—1977和GB／T130803．2—1999的方法、电力行业标准DL／T582--2004方法、比表面积和孔结构方法、焦糖脱色率方法，认为对处理天然水用活性炭，由于天然水中的有机物多为高分子有机物，DL／T582--2004方法反映的是活性炭中过渡孔的含量多少，能够选取吸附性能好的活性炭。而国标中的碘吸附值和亚甲基蓝吸附值反映的是活性炭中微孔的含量多少。另外，焦糖脱色率的测定方法与DL／T582--2004的测定方法测得的结果有较好的相关性，值得关注。

Selecting of Activated Carbon for Water Treatment for Some Plant and its Comment

Selection of activated carbon for removing the organic matters in water is especially important. By selecting a proper type of activated carbon for a certain plant, the methods of National Standard GB/T 7701.4-1977 and GB/T 130803.2-1999, the method of electric power industry standard DL/T 582-2004, the method of specific surface area and pore structure and the method of caramel deeolorization rate were investigated. Aiming at the activated carbon for treating natural water, for natural organic matters are mostly macromolecule organic matters, and the method of DL/T 582-2004 reflects the quantity of transitional pores in activated carbon, activated carbon of good absorption properties can be selected. Using the National Standard, the absorption indexes of iodine value and methylene blue value reflect the quantity of micro porous in activated carbon. What＇s more, the measuring method of caramel decolorization rate has good relationship with the method of DL/T 582-2004, worthing attention.