Purge water management system
Abstract
A purge water management system for effectively eliminating the production of purge water when obtaining a groundwater sample from a monitoring well. In its preferred embodiment, the purge water management system comprises an expandable container, a transportation system, and a return system. The purge water management system is connected to a wellhead sampling configuration, typically permanently installed at the well site. A pump, positioned with the monitoring well, pumps groundwater through the transportation system into the expandable container, which expands in direct proportion with volume of groundwater introduced, usually three or four well volumes, yet prevents the groundwater from coming into contact with the oxygen in the air. After this quantity of groundwater has been removed from the well, a sample is taken from a sampling port, after which the groundwater in the expandable container can be returned to the monitoring well through the return system. The purge water management system prevents the purge water from coming in contact with the outside environment, especially oxygen, which might cause the constituents of the groundwater to oxidize. Therefore, by introducing the purge water back into the monitoring well, the necessity of dealing with the purge water as a hazardous waste under themore »
- Inventors:
-
- North Augusta, SC
- Aiken, SC
- Issue Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- OSTI Identifier:
- 870289
- Patent Number(s):
- 5490561
- Assignee:
- United States as represented by Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
- DOE Contract Number:
- AC09-89SR18035
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- purge; water; management; effectively; eliminating; production; obtaining; groundwater; sample; monitoring; preferred; embodiment; comprises; expandable; container; transportation; return; connected; wellhead; sampling; configuration; typically; permanently; installed; site; pump; positioned; pumps; expands; direct; proportion; volume; introduced; volumes; prevents; coming; contact; oxygen; air; quantity; removed; returned; outside; environment; especially; constituents; oxidize; introducing; necessity; dealing; hazardous; waste; resource; conservation; recovery; eliminated; hazardous waste; preferred embodiment; water sample; water management; purge water; direct proportion; groundwater sample; /166/175/
Citation Formats
Cardoso-Neto, Joao E, and Williams, Daniel W. Purge water management system. United States: N. p., 1996.
Web.
Cardoso-Neto, Joao E, & Williams, Daniel W. Purge water management system. United States.
Cardoso-Neto, Joao E, and Williams, Daniel W. Mon .
"Purge water management system". United States. https://www.osti.gov/servlets/purl/870289.
@article{osti_870289,
title = {Purge water management system},
author = {Cardoso-Neto, Joao E and Williams, Daniel W},
abstractNote = {A purge water management system for effectively eliminating the production of purge water when obtaining a groundwater sample from a monitoring well. In its preferred embodiment, the purge water management system comprises an expandable container, a transportation system, and a return system. The purge water management system is connected to a wellhead sampling configuration, typically permanently installed at the well site. A pump, positioned with the monitoring well, pumps groundwater through the transportation system into the expandable container, which expands in direct proportion with volume of groundwater introduced, usually three or four well volumes, yet prevents the groundwater from coming into contact with the oxygen in the air. After this quantity of groundwater has been removed from the well, a sample is taken from a sampling port, after which the groundwater in the expandable container can be returned to the monitoring well through the return system. The purge water management system prevents the purge water from coming in contact with the outside environment, especially oxygen, which might cause the constituents of the groundwater to oxidize. Therefore, by introducing the purge water back into the monitoring well, the necessity of dealing with the purge water as a hazardous waste under the Resource Conservation and Recovery Act is eliminated.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1996},
month = {Mon Jan 01 00:00:00 EST 1996}
}