Course description
In Cost-Effective Design of Pump and Treat Systems, you'll learn ...
- How to estimate the system design mass flow for each constituent in a pump and treat (P&T) system
- Guidance on the design and selection of vertical wells, angled wells, pumps, wellheads and piping
- How to select the most appropriate technology to treat contaminants
- Advantages and disadvantages of various discharge options for P&T systems
Overview
Credit: 4 PDH
Length: 39 pages
Many methods are used to clean up pollution at Superfund and other sites. Pump and treat (P&T) is a common method for cleaning up groundwater. To remove polluted water from underground, an extraction system is built, usually consisting of one or more wells equipped with pumps. When the pumps are turned on, they pull the polluted groundwater into the wells and up to the surface. At the surface, the extracted water may undergo treatment via numerous methods (e.g. air stripping, GAC, ion exchange) to meet discharge requirements for specific contaminants. Following treatment (if necessary), the extracted water can be discharged to a surface water; reinjected into the subsurface; discharged to a municipal treatment plant; or reused in agricultural or industrial processes.
P&T systems are generally constructed and operated to accomplish one or more of the following: Containment -prevent migration of a constituent above a selected concentration to a receptor or potential receptor; Aquifer restoration - remove contaminant mass, including non-aqueous phase liquid (NAPL) if present, from an aquifer to achieve selected cleanup criteria; Meet requirements for the discharged water, and possibly discharged air, depending on the system An appropriately designed P&T system should achieve the ground water remedy goals in a cost-effective manner for the operating life of the system. Therefore, the design of the P&T system should account for the capital costs associated with system installation as well as the annual costs for operation and maintenance (O&M).
This course is intended for engineers who are involved with remediation of sites having contaminated groundwater.
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Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 25 questions. PDH credits are not awarded until the course is completed and quiz is passed.
Training content
This course teaches the following specific knowledge and skills:
- Remedy goals: containment, aquifer restoration, and meeting discharge requirements
- System design parameters based on flow and contaminant concentration
- Calculating design mass loading/removal rate for a contaminant
- Special considerations for non-aqueous phase liquid (NAPL)
- Extraction system components: wells, wellheads, pumps, and pipes
- Treatment options for various phases or classes of contaminants: pros and cons
- Calculation of preliminary GAC design estimates
- Discharge options: surface water; publicly owned treatment works (POTW); reinjection to subsurface; or reuse for agricultural or industrial processes
- Guidance for redundant and spare equipment, alarms, controls automation, and remote monitoring
Costs
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