作　　者： ; ; ; ; ; ;

机构地区： 南京大学环境学院污染控制与资源化研究国家重点实验室

出　　处： 《中国环境科学》 2011年第2期316-320,共5页

摘　　要： 采用60Co衰变产生的γ-射线辐照太湖原水,研究其对水中越冬蓝藻复苏的抑制,分析不同吸收剂量和添加物(甲醇、碳酸钠)对抑制效果的影响.结果表明,γ-射线辐照能有效抑制太湖水中越冬蓝藻的复苏,吸收剂量越大,抑制蓝藻复苏的效果越好.吸收剂量为5kGy的水样,培养40d,水中叶绿素a(Chl-a)、叶绿素b(Chl-b)和藻蓝素(PC)含量分别为对照样的8.66%、16.8%和17.2%,抑制了越冬蓝藻的复苏.0.5%甲醇和0.22mmol/LNa2CO3添加物抑制了辐照过程,与不含添加物水样相比,相同吸收剂量下,相同培养时间内,含添加物水样中Chl-a、Chl-b和PC浓度较高。 The inhibition of overwintering cyanobacteria recovery in Taihu Water by gamma-ray irradiation from 60Co was studied,the effects of different absorbed doses and additives（methanol,sodium carbonate） on inhibition were investigated.Gamma-ray irradiation significantly inhibited the recovery of overwintering cyanobacteria,the increasing of absorbed dose enhanced the inhibition effect.The ratio of chlorophyll a,chlorophyll b and phycocyanin,in water with the absorbed dose of 5kGy and 40 days culture,were 8.66%、16.8% and 17.2% to that in control sample,the recovery of overwintering cyanobacteria was inhibited.0.5% CH3OH、0.22mmol/LNa2CO3 additives restrained irradiation process,with the same absorbed dose and culture time,the chlorophyll a,chlorophyll b and phycocyanin concentration in water sample contained additives were higher than that in control sample.

关 键 词： 越冬 蓝藻 复苏 射线 辐照 抑制

领　　域： [环境科学与工程]