摘要
本文作者报道了河水及污水中硫化物的形态分布,并研究了影响硫化物形态分布的各种因素,结果表明共存金属离子浓度是影响硫化物形态分布的主要因素。11份水样的溶解态硫化物在10～70%之间。
The morphological distribution of sulfide in water was studied. Soluble sulfidewas separated from particle forms by filtering the water sample with 0.45μmfilter membrane. Then the total sulfide was changed to soluble form(H_2S)byacidifying it at 55—65℃ in a gas generator. Both were stabilized in a solutionof NaOH, EDTA and TEA and determined in the same system by osciltopolarography. The effects of pH and heavy metal ions on the morphological distribution of sulfide were investigated. It was found that with increasing pH andconcentration of heavy metal ions (Pb^(2+)), soluble sulfide decreased. 11 riverwater and waste water samples were analyzed and the content of soluble sulfide was in a range of (?).
出处
《现代预防医学》
CAS
1992年第1期18-20,共3页
Modern Preventive Medicine
关键词
形态分布
硫化物分析
水卫生
Morphological distribution Sulfide analysis Oscillopolarography
