Wang C C, Lee C M, Cheng P W
Department of Environmental Engineering, National Chung Hsing University, Taichung, Taiwan 402, Taiwan.
Water Sci Technol. 2001;43(2):349-54.
A gram-negative rod-shaped bacteria (strain AAS6), capable of utilizing acrylonitrile as the sole source of both carbon and nitrogen, was utilized to investigate the removal of acrylonitrile in ABS resin manufacturing wastewater. Both synthetic wastewater, containing a high concentration of acrylonitrile, and actual wastewater obtained from an ABS manufacturing factory were used. The result indicated that strain AAS6 was capable of completely removing acrylonitrile from synthetic wastewater containing less than 889 mg/l acrylonitrile and from actual industrial wastewater containing less than 400 mg/l acrylonitrile. Whether in synthetic wastewater or actual industrial wastewater, strain AAS6 showed approximately the same ability for acrylonitrile removal and used acrylic acid, a metabolic by-product of acrylonitrile, as the carbon source and ammonium as the nitrogen source. The bacteria could not directly metabolize other chemicals found in the actual industrial wastewater. However, its metabolic activities were not inhibited by the presence of compounds such as butadiene, styrene or acrylonitrile-styrene polymer. Thus, this strain is expected to play an important role in aeration tanks for treating ABS resin manufacturing wastewater.
一种革兰氏阴性杆状细菌（菌株AAS6），能够利用丙烯腈作为唯一的碳源和氮源，被用于研究ABS树脂制造废水中丙烯腈的去除情况。实验使用了含有高浓度丙烯腈的合成废水以及从一家ABS制造工厂获取的实际废水。结果表明，菌株AAS6能够从丙烯腈含量低于889毫克/升的合成废水中以及丙烯腈含量低于400毫克/升的实际工业废水中完全去除丙烯腈。无论是在合成废水中还是实际工业废水中，菌株AAS6对丙烯腈的去除能力大致相同，并利用丙烯腈的代谢副产物丙烯酸作为碳源，铵作为氮源。该细菌不能直接代谢实际工业废水中发现的其他化学物质。然而，其代谢活动并未受到丁二烯、苯乙烯或丙烯腈-苯乙烯聚合物等化合物的抑制。因此，预计该菌株在处理ABS树脂制造废水的曝气池中发挥重要作用。
