【摘要】 本文研究了无花果曲霉对Pb２+的吸附能 力和各种影响因素，包括菌丝球 与Pb２+的接触反应时间、Pb２+浓度、原初pH值，温度。结果表明：温度对吸 附影响不大，该菌丝球吸附铅的最佳pH范围为４．０～５．０，Pb２+浓度在２０mg/ L～１００mg/L范围内，吸附量为８．９２７mg/g～２２．１２０mg/g。吸附进行１０min， 吸附量已达到最终吸附量的７９．６６％，在吸附进行３h以后趋于平衡。在２０mg/L Pb２+浓度时，其吸附过程符合方程：R＝Rmax×T（Km＋T）。更多还原

【Abstract】 In this paper,the biosorption of Pb2+ by A spergillus ficuum was studied．The effects on biosorption capacity include reaction time,concentratio n of Pb2+ ,initial pH,and temperature．The results indicate that tempera ture slightly affects lead ion uptake;the optimum range of pH is 4.0-5.0,conc entration range of Pb2+ is 20mg/L－100mg/L,and the range of the lead uptake is 8.297mg/g－22.120mg/g．The removal rate reaches 79.66 ％ of the final removal rate in 10 min and balances after 3 hours．The proces s of adsorption accords with the equation R=R max ×T/（K m+T）at the concentration of 20mg/L．更多还原