A nutrient injection scheme for in situ bio-remediation

C. H. Lin, Tom Ming-Ching Kuo, C. Y. Su, K. F. Liang, Y. L. Han

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)280-288
Number of pages9
JournalJournal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Issue number2
Publication statusPublished - 2012 Jan 15

All Science Journal Classification (ASJC) codes

  • Environmental Engineering


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