贵金属
貴金屬
귀금속
PRECIOUS METALS
2015年
2期
77-83
,共7页
刘新星%赵文雅%董海刚%谢建平
劉新星%趙文雅%董海剛%謝建平
류신성%조문아%동해강%사건평
有色金属冶金%贵金属%微生物吸附%吸附机理%影响因素
有色金屬冶金%貴金屬%微生物吸附%吸附機理%影響因素
유색금속야금%귀금속%미생물흡부%흡부궤리%영향인소
non-ferrous metallurgy%precious metals%biosorption%biosorptive mechanism%influencing factors
贵金属具有众多优良特性,在现代工业中应用广泛。我国金、银资源虽较丰富,但铂族金属极其匮乏,随着国民经济的快速发展,近年已成为贵金属需求大国,供需矛盾十分突出。随着贵金属产品的更新换代,每年产出大量的贵金属二次资源。因此,从二次资源中高效清洁回收贵金属具有十分重要的意义。目前从二次资源中回收贵金属的方法存在着成本高、环境污染严重、回收效率低等弊端。微生物吸附法是近年来发展起来的一种新技术,它具有成本低、吸附效果好、适合处理低浓度废液等特点。综述了微生物吸附贵金属工艺的研究现状、微生物吸附贵金属的机理,阐述了对微生物吸附工艺的各种影响因素。
貴金屬具有衆多優良特性,在現代工業中應用廣汎。我國金、銀資源雖較豐富,但鉑族金屬極其匱乏,隨著國民經濟的快速髮展,近年已成為貴金屬需求大國,供需矛盾十分突齣。隨著貴金屬產品的更新換代,每年產齣大量的貴金屬二次資源。因此,從二次資源中高效清潔迴收貴金屬具有十分重要的意義。目前從二次資源中迴收貴金屬的方法存在著成本高、環境汙染嚴重、迴收效率低等弊耑。微生物吸附法是近年來髮展起來的一種新技術,它具有成本低、吸附效果好、適閤處理低濃度廢液等特點。綜述瞭微生物吸附貴金屬工藝的研究現狀、微生物吸附貴金屬的機理,闡述瞭對微生物吸附工藝的各種影響因素。
귀금속구유음다우량특성,재현대공업중응용엄범。아국금、은자원수교봉부,단박족금속겁기궤핍,수착국민경제적쾌속발전,근년이성위귀금속수구대국,공수모순십분돌출。수착귀금속산품적경신환대,매년산출대량적귀금속이차자원。인차,종이차자원중고효청길회수귀금속구유십분중요적의의。목전종이차자원중회수귀금속적방법존재착성본고、배경오염엄중、회수효솔저등폐단。미생물흡부법시근년래발전기래적일충신기술,타구유성본저、흡부효과호、괄합처리저농도폐액등특점。종술료미생물흡부귀금속공예적연구현상、미생물흡부귀금속적궤리,천술료대미생물흡부공예적각충영향인소。
Precious metals (PMs) are widely used in industries due to their unique physical and chemical properties. An increasing demand but a limited availability of PMs has led to great rises or fluctuations in their price. Thus it is urgent and attractive to recover PMs from secondary resources. The biosorptive recovery of PMs from waste solutions and secondary resources has attracted much attention, because it is more effective as well as cost-saving than traditional techniques. Besides, it is suitable for processing low concentration wastewater. The recent advances in biosorbents and biosorption for recovery of PMs were summarized in this review. The biosorptive mechanism and the influencing factors were also discussed.