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Title: Surge Block Method for Controlling Well Clogging and Sampling Sediment during Bioremediation

Abstract

A surge block treatment method (i.e. inserting a solid rod plunger with a flat seal that closely fits the casing interior into a well and stocking it up and down) was performed for the rehabilitation of wells clogged with biomass and for the collection of time series sediment samples during in situ bioremediation tests for U(VI) immobilization at a the U.S. Department of Energy site in Oak Ridge, TN. The clogging caused by biomass growth had been controlled by using routine surge block treatment for18 times over a nearly four year test period. The treatment frequency was dependent of the dosage of electron donor injection and microbial community developed in the subsurface. Hydraulic tests showed that the apparent aquifer transmissivity at a clogged well with an inner diameter (ID) of 10.16 cm was increased by 8 13 times after the rehabilitation, indicating the effectiveness of the rehabilitation. Simultaneously with the rehabilitation, the surge block method was successfully used for collecting time series sediment samples composed of fine particles (clay and silt) from wells with ID 1.9 10.16 cm for the analysis of mineralogical and geochemical composition and microbial community during the same period. Our results demonstrated that the surge blockmore » method provided a cost-effective approach for both well rehabilitation and frequent solid sampling at the same location.« less

Authors:
 [1];  [2];  [1];  [2];  [2];  [1];  [3];  [1]
  1. Stanford University
  2. ORNL
  3. University of Tennessee, Knoxville (UTK)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1133588
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Water Research
Additional Journal Information:
Journal Volume: 47; Journal Issue: 17; Journal ID: ISSN 0043-1354
Country of Publication:
United States
Language:
English

Citation Formats

Wu, Wei-min, Watson, David B, Luo, Jian, Carley, Jack M, Mehlhorn, Tonia L, Kitanidis, Peter K., Jardine, Philip, and Criddle, Craig. Surge Block Method for Controlling Well Clogging and Sampling Sediment during Bioremediation. United States: N. p., 2013. Web. doi:10.1016/j.watres.2013.08.033.
Wu, Wei-min, Watson, David B, Luo, Jian, Carley, Jack M, Mehlhorn, Tonia L, Kitanidis, Peter K., Jardine, Philip, & Criddle, Craig. Surge Block Method for Controlling Well Clogging and Sampling Sediment during Bioremediation. United States. https://doi.org/10.1016/j.watres.2013.08.033
Wu, Wei-min, Watson, David B, Luo, Jian, Carley, Jack M, Mehlhorn, Tonia L, Kitanidis, Peter K., Jardine, Philip, and Criddle, Craig. 2013. "Surge Block Method for Controlling Well Clogging and Sampling Sediment during Bioremediation". United States. https://doi.org/10.1016/j.watres.2013.08.033.
@article{osti_1133588,
title = {Surge Block Method for Controlling Well Clogging and Sampling Sediment during Bioremediation},
author = {Wu, Wei-min and Watson, David B and Luo, Jian and Carley, Jack M and Mehlhorn, Tonia L and Kitanidis, Peter K. and Jardine, Philip and Criddle, Craig},
abstractNote = {A surge block treatment method (i.e. inserting a solid rod plunger with a flat seal that closely fits the casing interior into a well and stocking it up and down) was performed for the rehabilitation of wells clogged with biomass and for the collection of time series sediment samples during in situ bioremediation tests for U(VI) immobilization at a the U.S. Department of Energy site in Oak Ridge, TN. The clogging caused by biomass growth had been controlled by using routine surge block treatment for18 times over a nearly four year test period. The treatment frequency was dependent of the dosage of electron donor injection and microbial community developed in the subsurface. Hydraulic tests showed that the apparent aquifer transmissivity at a clogged well with an inner diameter (ID) of 10.16 cm was increased by 8 13 times after the rehabilitation, indicating the effectiveness of the rehabilitation. Simultaneously with the rehabilitation, the surge block method was successfully used for collecting time series sediment samples composed of fine particles (clay and silt) from wells with ID 1.9 10.16 cm for the analysis of mineralogical and geochemical composition and microbial community during the same period. Our results demonstrated that the surge block method provided a cost-effective approach for both well rehabilitation and frequent solid sampling at the same location.},
doi = {10.1016/j.watres.2013.08.033},
url = {https://www.osti.gov/biblio/1133588}, journal = {Water Research},
issn = {0043-1354},
number = 17,
volume = 47,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2013},
month = {Tue Jan 01 00:00:00 EST 2013}
}