A nutrient injection scheme for in situ bio-remediation

被引：7
|
作者：
Lin, C. H. [1 ]
Kuo, M. C. Tom [1 ]
Sip, C. Y. [1 ]
Liang, K. F. [2 ]
Han, Y. L. [3 ]
机构：
[1] Natl Cheng Kung Univ, Dept Mineral & Petr Engn, Tainan 70101, Taiwan
[2] CPC Corp, Explorat & Dev Res Inst, New Taipei, Taiwan
[3] ITRI, Green Energy & Environm Labs, Hsinchu, Taiwan
来源：
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING | 2012年 / 47卷 / 02期
关键词：
In-situ bioremediation; aquifer heterogeneity; substrates; nutrients; porous tubes; BIOSTIMULATION; TRICHLOROETHYLENE; BIOREMEDIATION; GROUNDWATER; EFFICIENCY; SUBSTRATE; AQUIFER;
D O I：
10.1080/10934529.2012.640907
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Geological layers often have different hydraulic conductivities. This paper presents an innovative design for delivering aqueous substrates and nutrients to various stratified layers at desired rates during in-situ bio-stimulation. The new delivery system consists of intermittent porous tubes connected in series with impermeable polyethylene tubes that run horizontally in each stratified layer of a contaminated aquifer. Results of the tracer test indicated that the distribution of tritium through each porous tube was fairly uniform. A mathematical model was also developed to calculate the distribution of water flow through each porous tube. By controlling the permeability and the length of porous tubes placed in stratified layers, the new design provides a means to selectively deliver nutrients to various layers at desired rates according to aquifer heterogeneity.
引用
收藏
页码：280 / 288
页数：9
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