Faculty of Engineering and Architecture (FEAR), Postgraduate Program in Civil and Environmental Engineering (PPGEng), University of Passo Fundo (UPF), Passo Fundo, RS, Brazil.
Faculty of Engineering and Architecture (FEAR), Chemical Engineering Course, University of Passo Fundo (UPF), Passo Fundo, RS, Brazil.
Environ Sci Pollut Res Int. 2021 Sep;28(35):48666-48680. doi: 10.1007/s11356-021-14150-8. Epub 2021 Apr 29.
In this work, chitosan/alginate composites were developed by the gelation method with the addition of different amounts of activated carbon produced from tannery waste (ACTW). The performance of these composites was verified through the adsorption of the textile dye Remazol Brilliant Blue R (RBBR). A synergistic effect was observed by the addition of ACTW; with a specific surface area up to 45.584 m/g, the maximum adsorption capacity was 300.96 mg/g. The synergy was due to the reduction in steric hindrance, with the adsorption capacity 1.2 times higher than expected. The material was regenerated with sodium hydroxide for 10 cycles. The composite containing 30% ACTW (AC30) was applied in the treatment of real textile effluent, with 30% reductions in the biochemical oxygen demand (BOD), 39% in the chemical oxygen demand (COD), 78% in turbidity, and 67% in color.
在这项工作中，通过凝胶化方法制备了壳聚糖/海藻酸盐复合材料，并添加了不同量的由制革废物（ACTW）制备的活性炭。通过对纺织染料雷玛唑尔亮蓝 R（RBBR）的吸附来验证这些复合材料的性能。通过添加 ACTW 观察到协同效应；其比表面积高达 45.584 m/g，最大吸附容量为 300.96 mg/g。协同作用是由于空间位阻的降低，吸附容量比预期高 1.2 倍。该材料用氢氧化钠再生了 10 次。含有 30% ACTW（AC30）的复合材料应用于实际纺织废水的处理，生化需氧量（BOD）降低 30%，化学需氧量（COD）降低 39%，浊度降低 78%，颜色降低 67%。
