Department of Microbiology, College of Life Sciences, State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, Hunan, 410081, People's Republic of China.
Hunan Institute of Microbiology, Changsha, Hunan, 410009, People's Republic of China.
J Hazard Mater. 2017 Sep 5;337:189-197. doi: 10.1016/j.jhazmat.2017.05.006. Epub 2017 May 5.
To decontaminate heavy metal-containing waste water, a microbial biotechnology was developed by using the synergy between Sulfate reducing bacteria (SRB), Bacillus cereus (B. cereus) and Camellia oleifera cake (COC). In this process the COC degradation assisted by B.cereus, created an anoxic environment and provided energy and nutrition for SRB. Both of B. cereus and SRB played significant roles through biosorption, bioaccumulation and biosurfactant production. Meanwhile, a flotation technology commonly used in many effluent treatments has been led into this system for increasing the efficiency as well. After desorption and regeneration with acid and deionized water, the biosorbents could be reused to adsorb metal ions. 97% of heavy metals removal was achieved by the proposed technology. For multiple heavy metals-containing solutions, the capacities are in the order of Cd>Zn>Cu.
为了净化含有重金属的废水，开发了一种微生物生物技术，利用硫酸盐还原菌（SRB）、蜡状芽孢杆菌（B. cereus）和油茶饼（COC）之间的协同作用。在这个过程中，蜡状芽孢杆菌辅助 COC 降解，创造了缺氧环境，并为 SRB 提供了能量和营养。蜡状芽孢杆菌和 SRB 都通过生物吸附、生物积累和生物表面活性剂的产生发挥了重要作用。同时，一种常用于许多废水处理的浮选技术也被引入到这个系统中，以提高效率。通过酸和去离子水的解吸和再生，生物吸附剂可以重复使用来吸附金属离子。该技术实现了 97%的重金属去除率。对于多种含重金属的溶液，其容量顺序为 Cd>Zn>Cu。
