In this study, a fungal isolate was isolated from avocado fruit collected from a market in Makkah city, Saudi Arabia, and identified as Neopestalotiopsis clavispora ASU1. The biomass of Neopestalotiopsis clavispora ASU1 was used as a natural bio-sorbent for removal of Cd(II) and Zn(II) from aqueous solutions. Characterization of fungal biomass was performed using Fourier transform infrared spectroscopy, X-ray Diffractometer, and BET surface area. Different factors on Cd(II) and Zn(II) biosorption were studied to evaluate the maximum conditions for metals biosorption. The (q_max) for Cd(II) and Zn (II) by N. clavispora ASU1 calculated from the Langmuir adsorption isotherm was 185±0.25 and 153±0.18 mg/g, respectively. Based on r², the equilibrium biosorption isotherms fitted well with Langmuir model than Freundlich isotherm. The adsorption kinetics was studied, and the biosorption followed to the pseudo-second-order model. Thus, the currunt study indicated the possibility of N. clavispora ASU1 biomass for the removal of heavy metals from aqueous solutions.

在这项研究中，从鳄梨果实中分离出一种真菌分离物，该果实是从沙特阿拉伯麦加市的一个市场中收集的，并鉴定为新孢子虫亚种ASU1。新陈代谢的锁骨新生物ASU1的生物质用作天然生物吸附剂，用于从水溶液中去除Cd（II）和Zn（II）。使用傅里叶变换红外光谱，X射线衍射仪和BET表面积对真菌生物质进行表征。研究了Cd（II）和Zn（II）生物吸附的不同因素，以评估金属生物吸附的最大条件。N. clavispora对Cd（II）和Zn（II）的（q _max）根据Langmuir吸附等温线计算的ASU1分别为185±0.25和153±0.18 mg / g。基于r ²，平衡生物吸附等温线与Langmuir模型比Freundlich等温线拟合得更好。研究了吸附动力学，生物吸附遵循伪二级模型。因此，当前的研究表明，猪笼草NSU clavispora ASU1生物质有可能从水溶液中去除重金属。