低温真菌吸附Zn^(2+)的特性研究

Biological absorption of Zn^(2+) by low - temperature fungus

由于低温微生物的最适生长温度接近于自然水体的温度,因此它们在处理重金属污染废水中具有潜在的优势.试验采用低温真菌和常温真菌进行比较,分别对锌离子进行物理吸附,研究对不同Zn^(2+)质量浓度的吸附情况及Zn^(2+)在不同pH值、温度等因素下对吸附的影响,并对50mg/L Zn^(2+)溶液的多级吸附进行了研究,结果表明低温真菌的吸附同常温真菌相比最主要的优势在于当废水温度接近自然水温的情况下更有利于吸附,这为今后更深入的研究做了有益的探索.

Low - temperature microorganism have potential value in dealing with contaminated water by heavy metals. One low - temperature fungus and one mesophilic fungus were used in study of adsorption of Zn^(2+) at different conditions, such as various Zn^(2+) concentrations, pH, and temperatures. Multilevel adsorption of 50 mg/L Zn^(2+) was also studied. The results showed that low - temperature fungus has more significant advantage in adsorption than mesophilic fungus when the temperature of contaminated water was close to the temperature of natural water. It has provided very valuable information and data for further studies in the future.