Key Laboratory of Textile Science & Technology (Donghua University), Key Laboratory of Pollution Control and Emission Reduction Technology for Textile Industry, College of Environmental Science and Engineering, Ministry of Education, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China.
Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
Molecules. 2023 May 6;28(9):3930. doi: 10.3390/molecules28093930.
The hydrolysis acidification process is an economical and effective method, but its efficiency is still low in treating azo dye wastewater. It is therefore crucial to find more suitable and efficient means or techniques to further strengthen the process of treating azo dye wastewater by a hydrolytic acidification process. In this study, a hydrolytic acidification aerobic reactor was used to simulate the azo dye wastewater process. The change of wastewater quality during the reaction process was monitored, and the deep enhancement effect of single or composite biological intensification technology on the treatment of azo dye wastewater by the hydrolytic acidification process was also explored. Co-substrate strengthening and the addition of fructose co-substrate can significantly improve the efficiency of hydrolytic acidification. Compared with the experimental group without the addition of fructose, the decolorization ratio of wastewater was higher (93%) after adding fructose co-substrate. The immobilization technology was strengthened, and the immobilized functional bacteria DDMZ1 pellet was used to treat the simulated azo dye wastewater. The results showed that the composite technology experimental group with the additional fructose co-matrix had a better decolorization efficiency than the single immobilized bio-enhancement technology, with the highest decolorization ratio of 97%. As a composite biological intensification method, the fructose co-matrix composite with immobilized functional bacteria DDMZ1 technology can be applied to the treatment of azo dye wastewater.
水解酸化工艺是一种经济有效的方法，但在处理偶氮染料废水方面效率仍然较低。因此，找到更合适、更有效的方法或技术来进一步强化水解酸化工艺处理偶氮染料废水的过程至关重要。本研究采用水解酸化好氧反应器模拟偶氮染料废水处理过程，监测反应过程中废水水质的变化，探讨单一或复合生物强化技术对水解酸化处理偶氮染料废水的深度强化效果。共基质强化和添加果糖共基质可以显著提高水解酸化效率。与未添加果糖的实验组相比，添加果糖共基质后废水的脱色率更高（93%）。强化固定化技术，采用固定化功能菌 DDMZ1 颗粒处理模拟偶氮染料废水。结果表明，添加果糖共基质的复合技术实验组比单一固定化生物强化技术具有更好的脱色效率，最高脱色率达到 97%。作为一种复合生物强化方法，固定化功能菌 DDMZ1 与果糖共基质的复合技术可应用于偶氮染料废水的处理。
