利用自制的实验装置,研究了不同磁感应强度(0 mT, 2.4 mT, 6 mT, 10 mT, 17.4 mT)下,A、B两株厌氧除铬(Ⅵ)菌的菌落大小、菌密度变化、混合菌数目以及除铬(Ⅵ)效果.结果表明:磁场对微生物的生长具有累积效应,且磁生物效应存在滞后性;在10 mT的磁感应强度下,两株厌氧除铬(Ⅵ)菌均表现出生长受到抑制现象;在6 mT的磁感应强度下,B菌的菌落达到最大,A菌则表现出最强的适应性,A、B混合菌(数目比为1:1)的繁殖速度最快,菌密度增加了65%,其除铬(Ⅵ)效果达到最佳值,铬(Ⅵ)的去除率为36.17%,比未加磁场的高出8.84%.
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