Abstract：Based on sampling in Shuangtai estuary wetland and simulation experiments at laboratory pool, distribution characteristics of Pb in papermaking wastewater, wetland soil and reeds tissue was analyzed respectively within a growing season. The removal rate of Pb was the highest by irrigation 20% concentration wastewater and the best removing effect emerged at jointing stage. For the same period, Pb content in water was least at 10cm water depth and purifying effect was the most significant. The difference of Pb thermodynamics adsorption was remarkable in 10~40cm depth soil. As the sampling depth increases, the adsorption property of Pb was best in 10cm soil depth where the purification effect was significant. Distribution characteristics Pb in reed organization was different. The absorbing capability order of reed tissue to Pb was root>stem>leaves in the whole growth period.
