Abstract：
Recent escalating concerns surrounding textile wastewater pollution and the urgent need for sustainable treatment solutions to mitigate its environmental impact. This study investigates the multifaceted effects of Spirulina platensis (SP) cultivation in textile wastewater from two different sources (TWW1 and TWW2), focusing on growth kinetics, Chemical Oxygen Demand (COD), and nutrient removal percentage, and seed germination enhancement. Results showed that SP exhibited comparable growth performance in TWW1 and TWW2 to the control, indicating its potential for sustainable wastewater treatment. Moreover, maximum COD removal percentages were achieved, reaching 62.59 ± 1.88 % for TWW1 and 46.68 ± 1.40 % for TWW2 on day 5. The COD removal process aligns best with the first-order kinetic model. Nutrient removal rates showed decreasing trends over time, with maximum phosphate removal percentages of 36.42 ± 0.73 % for TWW1 and 62.18 ± 1.24 % for TWW2, and maximum ammonia removal percentages of 59.34 ± 1.18 % for TWW1 and 69.31 ± 1.39 % for TWW2. FTIR analysis confirmed pollutant removal-induced changes in algal biomass functional groups. Seed germination studies indicated enhanced shoot and root development of vigna radiatas using treated TWW1 and TWW2 compared to the control, suggesting potential applications for irrigation. An increase in the lipid & carbohydrate content post-treatment was observed and it would be suitable for biofuel production. This comprehensive assessment demonstrates the synergistic benefits of phycoremediation in simultaneously removing pollutants, promoting plant growth, and enhancing wastewater treatment efficiency, underscoring its potential for sustainable water management practices.
摘要：
最近围绕纺织废水污染的担忧不断升级，以及迫切需要可持续的处理解决方案来减轻其对环境的影响。本研究调查了螺旋藻（SP）在来自两个不同来源（TWW1和TWW2）的纺织废水中培养的多方面影响，专注于生长动力学，化学需氧量(COD),和养分去除百分比，和种子发芽增强。结果表明，SP在TWW1和TWW2中表现出与对照相当的生长性能，表明其可持续废水处理的潜力。此外，达到了最大COD去除率，在第5天，TWW1达到62.59±1.88%，TWW2达到46.68±1.40%。COD去除过程与一级动力学模型最吻合。随着时间的推移，养分去除率呈下降趋势，TWW1的最大磷酸盐去除率为36.42±0.73％，TWW2的最大磷酸盐去除率为62.18±1.24％，TWW1的最大氨去除率为59.34±1.18％，TWW2的最大氨去除率为69.31±1.39％。FTIR分析证实了污染物去除引起的藻类生物质官能团变化。种子萌发研究表明，与对照相比，使用处理过的TWW1和TWW2增强了云芝的芽和根发育，建议灌溉的潜在应用。观察到处理后脂质和碳水化合物含量的增加,并且其将适合于生物燃料生产。这一综合评估证明了植物修复在同时去除污染物方面的协同效益，促进植物生长，提高污水处理效率，强调其可持续水管理实践的潜力。
