【摘要】 研究了活性污泥对染料的吸附量与pH值的关系 ,结果表明 :当pH值降到 4 .7左右时 ,活性污泥对活性艳红X - 3B的吸附量迅速增大 ;降到 3.0附近以后 ,虽然吸附量继续随pH值降低而增加 ,但变化已经不大。pH值为3时是一个合适的吸附点。并根据污泥对混合染料废水的吸附情况推测吸附是一种电性吸附更多还原

【Abstract】 The relationship between pH value and dye binding capacity of active sludge are studied. The result shows that, when pH value decreases to around 4.7, the dye binding capacity of Reactive Brilliant X-3B to active sludge increases rapidly. When pH value decreases to around 3.0, although the binding capacity still increases, but the change of binding capacity becomes small. So, pH =3 is a suitable point of adsorption of active sludge. On the basis of adsorption of waste water of mixed dyes, it is estimated that, the adsorption is probably a kind of competitive ionic adsorption.更多还原