Selim Mohamed T, Salem Salem S, Mohamed Asem A, El-Gamal Mamdouh S, Awad Mohamed F, Fouda Amr
Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt.
National Research Center, El-Behouth St. (Former El-Tahrir Str.), Dokki, Giza 12622, Egypt.
J Fungi (Basel). 2021 Mar 9;7(3):193. doi: 10.3390/jof7030193.
Twenty-one fungal strains were isolated from dye-contaminated soil; out of them, two fungal strains A2 and G2-1 showed the highest decolorization capacity for real textile effluent and were, hence, identified as and based on morphological and molecular methods. The highest decolorization percentage of 78.12 ± 2.1% was attained in the biotreatment with fungal consortium followed by and separately with removal percentages of 54.68 ± 1.2% and 52.41 ± 1.0%, respectively. Additionally, ultraviolet-visible spectroscopy of the treated effluent showed that a maximum peak () of 415 nm was reduced as compared with the control. The indicators of wastewater treatment efficacy, namely total dissolved solids, total suspended solids, conductivity, biological oxygen demand, and chemical oxygen demand with removal percentages of 78.2, 78.4, 58.2, 78.1, and 77.6%, respectively, demonstrated a considerable decrease in values due to fungal consortium treatment. The reduction in peak and mass area along with the appearance of new peaks in GC-MS confirms a successful biodegradation process. The toxicity of treated textile effluents on the seed germination of was decreased as compared with the control. The shoot length after irrigation with effluents treated by the fungal consortium was 15.12 ± 1.01 cm as compared with that treated by tap-water, which was 17.8 ± 0.7 cm. Finally, we recommended the decrease of excessive uses of synthetic dyes and utilized biological approaches for the treatment of real textile effluents to reuse in irrigation of uneaten plants especially with water scarcity worldwide.
从受染料污染的土壤中分离出21株真菌菌株；其中，两株真菌菌株A2和G2-1对实际纺织废水表现出最高的脱色能力，因此，基于形态学和分子方法将它们鉴定为[具体名称未给出]。在真菌联合体的生物处理中，脱色率最高达到78.12±2.1%，其次是[具体名称未给出]和[具体名称未给出]单独处理，去除率分别为54.68±1.2%和52.41±1.0%。此外，处理后废水的紫外可见光谱显示，与对照相比，最大峰值（415nm）降低。废水处理效果指标，即总溶解固体、总悬浮固体、电导率、生物需氧量和化学需氧量，去除率分别为78.2%、78.4%、58.2%、78.1%和77.6%，表明由于真菌联合体处理，这些值显著降低。气相色谱-质谱联用仪（GC-MS）中峰值和质量面积的降低以及新峰的出现证实了成功的生物降解过程。与对照相比，处理后的纺织废水对[植物名称未给出]种子萌发的毒性降低。用真菌联合体处理后的废水灌溉后的茎长为15.12±1.01cm，而用自来水处理后的茎长为17.8±0.7cm。最后，我们建议减少合成染料的过度使用，并采用生物方法处理实际纺织废水，以便在灌溉未食用植物时再利用，特别是在全球水资源短缺的情况下。
