Biosorption has gained increased attention as a reliable and proven technology for the remediation of industrial effluents rich in chromium. The present study was planned to isolate potential fungi from effluents contaminated sites and assess their efficiency for the absorption and reduction of chromium. Two species of Aspergillus and a species of Trichoderma which were isolated from contaminated sites and exhibited resistance to 10 mM of chromium on agar were chosen for the study. A biosorbent was designed by growing these fungal isolates on luffa sponge under shaken condition. The absorption and reduction of chromium, by the designed biosorbent was determined by Atomic Absorption Spectrophotometry and UV Visible Spectrophotometer. Actively growing fungi on luffa sponge showed better absorption (21%–25%) and reduction (28%–35%) capacity when compared to heat killed biosorbent in all fungi tested within 24 h of incubation. Interestingly, there was a liner increase in the absorption and reduction (85%–100%) of chromium by the biosorbent designed by using A. niger.

作为一种可靠且经过验证的技术来修复富含铬的工业废水，生物吸附得到了越来越多的关注。计划本研究从废水污染部位分离潜在真菌，并评估其对铬的吸收和还原的效率。两种曲霉和一种木霉从受污染的部位分离出的这些菌株用于研究，并在琼脂上表现出对10 mM铬的抗性。通过在摇动条件下在丝瓜海绵上生长这些真菌分离物来设计生物吸附剂。利用原子吸收分光光度法和紫外可见分光光度计测定设计的生物吸附剂对铬的吸收和还原。在孵育24小时内测试的所有真菌中，与热杀死的生物吸附剂相比，在丝瓜海绵上活跃生长的真菌表现出更好的吸收（21％–25％）和减少的能力（28％–35％）。有趣的是，通过使用黑曲霉设计的生物吸附剂，铬的吸收和减少（85％–100％）有所增加。