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Microbial removal of heavy metals from agricultural and marine industrial wastes in a sequential and mixed cultivation

顺序混合培养中微生物去除农业和海洋工业废物中的重金属

基本信息

批准号：
17580285
负责人：
KIKUCHI Shintaro
金额：
$ 2.26万
依托单位：
Muroran Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2007
项目状态：
已结题

项目摘要

Microbial removal of heavy metals, especially cadmium, from agricultural and marine industrial wastes were examined. During sequential and mixed cultivation of proteolytic microbes and a strain of sulfate-educing bacteria in an extracts of each waste, heavy metals like cadmium were removed almost completely from the extract as the metal-sulfide precipitate. Whereas a ant amounts of heavy metals remained in the extract after the cultivation of proteolytic microbes or the sulfate-reducing bacterium alone.These results suggested that heavy metals in agricultural and marine industrial wastes would be present as bound-state with heavy-metal-binding protein such as metallothionein and they would be transformed to the free-state by protease secreted by proteolytic microbes. And then metal-sulfide precipitates could be formed with the free-state of heavy metals and hydrogen sulfide produced by the sulfate-reducing bacterium. Availability of meal-free preparations as. feed were also examined.

研究了微生物从农业和海洋工业废物中去除重金属，特别是镉的情况。在每种废物的提取物中连续混合培养蛋白水解微生物和硫酸盐排出细菌菌株时，镉等重金属几乎完全以金属硫化物沉淀的形式从提取物中去除。而单独培养蛋白水解微生物或硫酸盐还原菌后，提取物中仍残留有大量重金属。这些结果表明，农业和海洋工业废物中的重金属将以与重金属结合蛋白（如金属硫蛋白）结合的状态存在，并被蛋白水解微生物分泌的蛋白酶转化为游离态。然后游离状态的重金属与硫酸盐还原菌产生的硫化氢形成金属硫化物沉淀。提供无餐制剂。饲料也进行了检查。

项目成果

期刊论文数量（0）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Isolation and characterization of lubricant oil-degrading bacteria from waste lubricant-contaminated soil under low temperature conditions (in Japanese)

低温条件下废润滑油污染土壤中润滑油降解菌的分离与表征（日文）

DOI：
发表时间：
2007
期刊：
影响因子：
0
作者：
Young C. Chang;Masakuni Sasaki;Tadashi Toyama;Shintaro Kikuchi
通讯作者：
Shintaro Kikuchi

Isolation of ptren-degrading bacteria from rhizosphere of Phragmites australis (in Japanese)

从芦苇根际分离 ptren 降解菌（日语）

DOI：
发表时间：
2007
期刊：
影响因子：
0
作者：
Tadashi Toyama;Tetsuya Furukawa;Sei Kazunari;Kun Soda;Y. C. Chang Shintaro Kikuchi Michiko Ike
通讯作者：
Y. C. Chang Shintaro Kikuchi Michiko Ike

Development of a new environmental type processing technology using waste blast furnance dust (in Japanese)

利用废弃高炉粉尘开发新型环保型处理技术（日语）