The traditional leather tanning is one of the oldest technologies which produces effluents containing different pollutants, including Cr(VI) oxyanions. In this lab-scale study, batch experiments were conducted to measure Cr(VI) removal capacity of Sargassum tenerrimum. The efficacy of biosorption was optimized considering variables including pH, temperature, initial chromium concentration, as well as biomass particle size and dosage. Surface characteristics of S. tenerrimum and its changes after Cr(VI) adsorption were investigated by BET/BJH, SEM-EDX and FT-IR techniques. Desorption studies were carried out to investigate the capability of multiple uses of the algal biomass, with the results showing a high performance of five successive sorption/desorption cycles. The maximum biosorption was obtained with the biomass particle size of 0.6 mm at 25 °C at pH 2. The Langmuir isotherm model was recognized as the most correlated model of biosorption where the maximum biosorption capacity (q_max) was obtained to be 37.7 mg/g dry biomass. The batch experiments were repeated using real tannery wastewater under the optimized conditions and the biosorbent could remove about 88% of Cr(VI) from the real wastewater.

传统的皮革鞣制是最古老的技术之一，可产生含有不同污染物（包括Cr（VI）含氧阴离子）的废水。在此实验室规模的研究中，进行了分批实验，以测量野马齿藻的Cr（VI）去除能力。考虑到包括pH，温度，初始铬浓度以及生物质粒径和剂量在内的变量，优化了生物吸附的效率。田间链霉菌的表面特性并通过BET / BJH，SEM-EDX和FT-IR技术研究了Cr（VI）吸附后的变化。进行了解吸研究，以研究藻类生物质多次使用的能力，结果显示了五个连续的吸附/解吸循环的高性能。在25°C和pH 2下，最大生物吸附量为0.6 mm的生物质颗粒。Langmuir等温模型被认为是最相关的生物吸附模型，其中最大生物吸附量（q _max）为37.7 mg /克干生物质。在最佳条件下，使用真实制革废水重复进行批处理实验，生物吸附剂可从真实废水中去除约88％的Cr（VI）。