Complexation of metals with aqueous sulfide in an anaerobic treatment wetlands

机译：厌氧处理湿地中金属与硫化氢的络合

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The role of aqueous metal sulfide complexes in an anaerobic treatment wetland in Butte, Montana was examined. Anaerobic wetlands remove metals from the impacted water by creating a reducing environment in which sulfate is bacterially reduced to H_2S. Metals then react with the H_2S to form insoluble metal sulfide precipitates. However, higher concentrations of H_2S can create sulfide complexes and increase metal solubilities to undesirable levels. Wetland field results of metal solubilities in the presence of sulfide are compared with published metal sulfide solubility studies and the geochemical modeling program, MINTEQA2. The study revealed the importance of understanding the crystalline phase of the precipitates, the valence state of the metal of interest, and the quality/completeness of the thermodynamic data being used.

机译：研究了含水金属硫化物配合物在蒙大拿州比尤特的厌氧处理湿地中的作用。厌氧湿地通过创建还原环境将硫酸盐从细菌中还原为H_2S，从而从受影响的水中去除金属。然后金属与H_2S反应形成不溶的金属硫化物沉淀。但是，较高浓度的H_2S会生成硫化物络合物，并将金属溶解度提高到不希望的水平。将在硫化物存在下金属溶解度的湿地场结果与已发表的金属硫化物溶解度研究和地球化学建模程序MINTEQA2进行比较。研究表明了解沉淀物的结晶相，所关注金属的价态以及所用热力学数据的质量/完整性的重要性。

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《International Conference on Wetlands amp; Remediation Salt Lake City, Utah, November 16-17, 1999》|1999年|p.423-430|共8页
会议地点 Salt Lake City UT(US)
作者
Angela K. Frandsen; Christopher H. Gammons;
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正文语种 eng
中图分类农业基础科学;
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2. Sulfides in the anaerobic environment: The determination of hydrogen sulfide and acid-soluble metallic sulfides in sea-floor sediment [J] . Christensen JK., Kryger L., Pind N., Journal of Chemical Education . 1998,第12期

机译：厌氧环境中的硫化物：海底沉积物中硫化氢和酸溶性金属硫化物的测定
3. Conversion of Heavy Metals Involved in Incineration Fly Ashes to Heavy Metals Sulfide Resources by Sulfidation Treatment with Sodium Sulfide [J] . Dalibor KUCHAR, Yoshihiro KOJIMA, Maurice S.ONYANGO, Journal of Chemical Engineering of Japan . 2006,第2期

机译：通过硫化钠的硫化处理将涉及焚烧粉煤灰的重金属转化为重金属硫化物资源。
4. Seasonal influences on heavy metal attenuation in an anaerobic treatment wetland, butte, montana [C] . Christopher H.Gammons, William J.Drury, Youning Li International conference on acid rock drainage;ICARD 2000 . 2000

机译：蒙大拿州比尤特比尤特厌氧处理湿地中重金属衰减的季节性影响
5. REMOVAL OF HEAVY METALS BY SULFIDE PRECIPITATION IN THE PRESENCE OF COMPLEXING AGENTS (CHELATING AGENT, COMPLEXATION, PARTICLE SIZE). [D] . KU, YOUNG. 1986

机译：存在络合剂（螯合剂，络合，颗粒尺寸）时，通过硫化物沉淀去除重金属。
6. The role of authigenic sulfides in immobilization of potentially toxic metals in the Bagno Bory wetland southern Poland [O] . Beata Smieja-Król, Janusz Janeczek, Arkadiusz Bauerek, -1

机译：自生硫化物在波兰南部Bagno Bory湿地中固定潜在有毒金属的作用
7. Organic sulfur compounds resulting from the interaction of iron sulfide, hydrogen sulfide and carbon dioxide in an anaerobic aqueous environment [O] . Heinen W., Lauwers A.M. 1996

机译：厌氧水环境中硫化铁，硫化氢和二氧化碳相互作用产生的有机硫化合物

Complexation of metals with aqueous sulfide in an anaerobic treatment wetlands

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