简介：ToseparatethecadmiumandnickelresourcesinwasteNi-Cdbatteries,aself-designedvacuumdistillationrecyclingsystemwasstudiedunderlaboratoryconditions.Theeffectsofsystemtemperature,operatingpressure,andtimeontheseparationofNiandCdwerestudiedrespectively.Themechanismofvacuumthermalrecyclingwasalsodiscussed.ResultsshowthatvacuumdistillationisaveryeffectiveseparationmethodforwasteNi-Cdbatteries.AtaConstantpressure,theincreaseoftemperaturecanimprovetheseparatingefficiencyofCd.Whenthetemperatureis1173K,Cadmiumcanevaporatecompletelyfromthesamplesduring3hat10Pa,ThereductionofpressureinacertainrangeiseffectivetotheseparatingofCdfromNi-Cdbatteriesbyvacuumdistillation.

简介：重要细丝状的工业真菌，Rhizopuscohnii(R。cohnii)，作为有效biosorbent被使用把镉从废水移开。吸着条件生物资源的剂量和镉的起始的集中例如pH，被检验。二种吸附模型被使用模仿biosorption数据。镉的举起比处于强壮的酸状况处于弱酸状况是更高的。当pH价值比2.0低时，将近，镉的吸着都没发生。Biosorption等温的数据能被兰米尔和Freundlich模型很好模仿。biosorption的兰米尔模拟证明镉的最大的举起处于最佳的条件是40.5mg/g(0.36mmol/g)，它比许多另外的吸附物高，包括biosorbents并且激活碳。另外，可重用性结果在五次吸着和解吸附作用过程以后显示出那，R的吸着能力。cohnii能仍然维持将近80%，证实它在镉处理的实际申请。Fourier变换红外线的光谱揭示了那carboxyl，氨基并且biosorbentR上的氢氧根组。cohnii表面为镉的biosorption负责。