Soil microbial response to waste potassium silicate drilling fluid

被引：11

作者：

Yao, Linjun ^{[1
,2
]}

Naeth, M. Anne ^{[1
]}

Jobson, Allen ^{[1
]}

机构：

[1] Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2H1, Canada

[2] China Univ Geosci Beijing, Sch Land Sci & Technol, Beijing 100083, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL SCIENCES | 2015年 / 29卷

关键词：

Drilling waste; Potassium silicate drilling fluid; Soil; Microbiota; SELECTIVE-PLACEMENT BURIAL; ANAEROBIC DEGRADATION; BACTERIAL COMMUNITIES; ELECTRON-ACCEPTORS; MUD APPLICATION; OIL-FIELD; GEN-NOV; TOLUENE; BUFFALOGRASS; ETHYLBENZENE;

D O I：

10.1016/j.jes.2014.10.007

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Potassium silicate drilling fluids (PSDF) are a waste product of the oil and gas industry with potential for use in land reclamation. Few studies have examined the influence of PSDF on abundance and composition of soil bacteria and fungi. Soils from three representative locations for PSDF application in Alberta, Canada, with clay loam, loam and sand textures were studied with applications of unused, used once and used twice PSDF. For all three soils, applying >= 40 m(3)/ha of used PSDF significantly affected the existing soil microbial flora. No microbiota was detected in unused PSDF without soil. Adding used PSDF to soil significantly increased total fungal and aerobic bacterial colony forming units in dilution plate counts, and anaerobic denitrifying bacteria numbers in serial growth experiments. Used PSDF altered bacterial and fungal colony forming unit ratios of all three soils. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences.

引用

页码：189 / 198

页数：10

共 72 条

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