ISSN:1069-3629    

DOI:10.1111/j.1745-6592.1996.tb01164.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

ISSN:1069-3629    

DOI:10.1111/j.1745-6592.1996.tb01165.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

ISSN:1069-3629    

DOI:10.1111/j.1745-6592.1996.tb01166.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

ISSN:1069-3629    

DOI:10.1111/j.1745-6592.1996.tb01167.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

ISSN:1069-3629    

DOI:10.1111/j.1745-6592.1996.tb01168.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

ISSN:1069-3629    

DOI:10.1111/j.1745-6592.1996.tb01169.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

ISSN:1069-3629    

DOI:10.1111/j.1745-6592.1996.tb01170.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

ISSN:1069-3629    

DOI:10.1111/j.1745-6592.1996.tb01171.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

摘要:

AbstractEloctromigraiion offers a potential tool for remediating ground water contaminated with highly soluble components, such as Na+, Cl, NO3and SO4−. A field experiment was designed to lest the efficacy of electromigration for preconcontrating dissolved SO42in ground water associated with a fossil‐fuel power plant. Two shallow wells, 25 feel apart (one 25 feel deep, the other 47 feet deep), were constructed in the upper portion of an unconfined alluvial aquifer. The wells were constructed with a double‐wall design, with an outer casing of 4‐inch PVC and an inner lube of 2‐inch FVC; both were fully slotted (0.01 inch). Electrodes were constructed by wrapping the inner lulling with a 100‐foot length of rare‐earth metal oxide/copper wire. An electrical potential of 10.65 volts DC Was applied, and tests were run for periods of 12, 44, and 216 hours. Results showed large changes in the pH from the initial pH of ground water of about 7.5 to values of approximately 2 and 12 at the anode and cathode, respectively. Despite the fact that the test conditions were far from ideal, dissolved SO42‐; was significantly concentrated at the anode. Over a period of approximately nine days, the concentration of SO42‐at the anode reached what appeared to he a steady‐state value of 2200 mg/L. compared lo the initial value in ground water of approximately 1150 mg/L. The results of this field lest should encourage further investigation of electromigration as a tool in the remediation of contam

ISSN:1069-3629    

DOI:10.1111/j.1745-6592.1996.tb01172.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY

摘要:

AbstractSuperposition techniques can extend the capabilities of relatively simple analytical fate and transport models. Complex source geometries, simple aquifer boundaries, and electron acceptor limited biodegradation can be simulated by using superposition techniques in computer spreadsheets. Spreadsheet models are an easily used tool for interpreting sampling results and for estimating attenuation and degradation rates in relatively homogeneous aquifers. Analytical spreadsheet models are based on the Domenico analytical model and can provide results that are in close agreement with the numerical model UIOPLUMH II.

ISSN:1069-3629    

DOI:10.1111/j.1745-6592.1996.tb01173.x

出版商:Blackwell Publishing Ltd    

年代:1996

数据来源: WILEY