The fine fraction of clay from Tagaran (TC) was characterized with X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF), Scanning Electron Microscopy (SEM), and Fourier-Transform Infrared Spectroscopy (FT-IR) and compared with the fine fraction of Topkhana clay (TPC). Both, TC and TPC were dominated by a trioctahedral swelling clay mineral (saponite). The use of TC was investigated for the adsorptive removal of methylene blue (MB) from blood film preparation washing waste of medical laboratory and undergraduate microbiology laboratory wastewater of the University of Sulaimani. The effect of initial pH of the dye solution was negligible at the studied range of dye concentration. The optimum adsorbent (TC) dose was 5 g/L for 50 mg/L of MB with an optimum equilibration time of 120 minutes. Adsorption isotherms were fitted to Langmuir and Redlich-Peterson isotherms by non-linear regression method. Pseudo-second-order kinetics best describe the analytical results. The thermodynamic parameters confirmed spontaneous endothermic adsorption. The study showed that local clays can be used to clean MB contaminated wastewaters.

用X射线衍射（XRD），X射线荧光（XRF），扫描电子显微镜（SEM）和傅里叶变换红外光谱（FT-IR）表征了来自塔加拉（TC）的粘土的细小部分，并与Topkhana粘土（TPC）的细小部分。TC和TPC均以三面体膨胀粘土矿物（皂石）为主。研究了TC的用途，用于从医学实验室的血膜制剂洗涤废水和苏莱马尼大学的微生物学实验室废水中吸附去除亚甲基蓝（MB）。在所研究的染料浓度范围内，染料溶液初始pH的影响可忽略不计。对于50 mg / L的MB，最佳吸附剂（TC）剂量为5 g / L，最佳平衡时间为120分钟。通过非线性回归方法将吸附等温线拟合到Langmuir和Redlich-Peterson等温线。伪二级动力学最能描述分析结果。热力学参数证实了自发吸热吸附。研究表明，当地的粘土可以用来清洁被MB污染的废水。