贵州西南部高砷煤的砷（As）来泊及所致中毒途径研究

贵州西南部高砷煤的Ａｓ主要来源于二叠世早期喷发的峨嵋山玄武岩浆。所致砷中毒途径主要是通过燃用高砷煤而产生的含砷气体经呼吸道进入人体，其次是通过含砷的饮用水和食物链（主要是农作物）经消化道进入人体而导致慢性中毒。     

砷的污染、检测与防治

在环境化学污染物中,砷是最常见、最严重的污染物之一.随着现代工农业生产的发展,砷对环境的污染日趋严重.为了更好地评价砷污染对环境和人体的影响,介绍了砷污染的来源、对人体的危害、标准的检测方法和目前砷污染治理的现状.     

电化学法添加铁和化学氧化法相结合治理含砷废水

砷化物是一种毒性很强的可溶性化合物，因此，对含砷废水的处理要求都比较严格，本文介绍了一种用电化学氧经法与化学氧化法相结合的处理方法，并论述也该工艺的流程和特点，以及工业试验及实际运行的结果。     

“二乙基二硫代氨基甲酸银(Ag·DDC)光度法”测砷装置改进可行性探讨

探讨了对市售测砷装置进行改进的可行性 ,用改进装置进行标准曲线相关性、精密度、准确度等方面的试验 ,并进行了统计分析 ,得出改进装置可行的结论     

二乙基二硫代氨基甲酸银分光光度法测定砷的改进

本文对二乙基二硫代氨基甲酸银测定砷的分析方法进行了探讨。在试样的消解方法，锌粒的加入和吸收液的用量作了适当的改进，在实际使用中取得了良好的结果。     

精锡冶炼污水的治理

本文介绍了冶炼含砷废水的治理工艺,并从技术上、经济上论证石灰铁盐法治理含砷废水的可行性.该法不但解决了含砷废水对环境污染的问题,还可回收有价金属,具有显著的经济效益和社会效益.     

Comparison of four supports for adsorption of reactive dyes by immobilized beads

Four materials, sodium carboxymethylcellulose （Na-CMC）, sodium alginate （SA）, polyvinyl alcohol （PVA）, and chitosan （CTS）, were prepared as supports for entrapping fungus Aspergillusfumigatus. The adsorption of synthetic dyes, Reactive Brilliant Blue KN- R, and Reactive Brilliant Red K-2BP, by these immobilized gel beads and plain gel beads was evaluated. The adsorption efficiencies of Reactive Brilliant Red K-2BP and Reactive Brilliant Blue KN-R by CTS immobilized beads were 89.1% and 93.5% in 12 h, respectively. The adsorption efficiency by Na-CMC immobilized beads was slightly lower than that of mycelial pellets. But the dye culture mediums were almost completely decolorized in 48 h using the above-mentioned two immobilized beads （exceeding 95%）. The adsorption efficiency by SA immobilized beads exceeded 92% in 48 h. PVA-SA immobilized beads showed the lowest adsorption efficiency, which was 79.8% for Reactive Brilliant Red K-2BP and 92.5% for Reactive Brilliant Blue KN-R in 48 h. Comparing the adsorption efficiency by plain gel beads, Na-CMC plain gel beads ranked next to CTS ones. SA and PVA-SA plain gel beads hardly had the ability of adsorbing dyes. Subsequently, the growth of mycelia in Na-CMC and SA immobilized beads were evaluated. The biomass increased continuously in 72 h. The adsorption capacity of Reactive Brilliant Red K-2BP and Reactive Brilliant Blue KN-R by Na-CMC immobilized beads was 78.0 and 86.7 mg/g, respectively. The SEM micrographs show that the surface structure of Na-CMC immobilized bead is loose and finely porous, which facilitates diffusion of the dyes.     

砷（As）在整株水稻各部位的分布研究

通过Ａｓ在整株水稻各部位的分布研究，揭示了植物对环境中类金属Ａｓ的吸收和富集规律。研究结果表明，稻根含Ａｓ量最大，茎叶次之，籽粒基微，充分显示出自下而上递减的变化规律。     

极谱法测定地面水中微量的砷

极谱法测定地面水中微量的砷曹雪艳仙桃市环境监测站砷的极谱法测定国内外虽有报道．但因地面水中砷的含量甚微，故用极谱法测定地面水中砷的方法至今未见。本文研究了碘化胺──硫酸体系中，在有一定量磷离子的存在下，地面水中砷的极谱法测定。测定范围在Ｉ×１０－４～...