Invention Grant
US08127626B2 Sediment sampler for in-situ measurement of soluble contaminant flux rates 有权
用于原位测量可溶性污染物通量速率的沉积物采样器

  • Patent Title: Sediment sampler for in-situ measurement of soluble contaminant flux rates
  • Patent Title (中): 用于原位测量可溶性污染物通量速率的沉积物采样器
  • Application No.: US12627220
    Application Date: 2009-11-30
  • Publication No.: US08127626B2
    Publication Date: 2012-03-06
  • Inventor: Thomas David Hayes
  • Applicant: Thomas David Hayes
  • Applicant Address: US IL Des Plaines
  • Assignee: Gas Technology Institute
  • Current Assignee: Gas Technology Institute
  • Current Assignee Address: US IL Des Plaines
  • Agent Mark E. Fejer
  • Main IPC: G01N1/10
  • IPC: G01N1/10
Sediment sampler for in-situ measurement of soluble contaminant flux rates
Abstract:
A method and apparatus for in-situ measurement of soluble contaminant flux rates from sediments in which an inverted desorption chamber containing a sorbent system is filled with water and placed over an area of sediment, whereby the interior of the chamber is isolated from the exterior of the chamber above the sediment. Soluble contaminants released from the sediment are sorbed onto the surface of a sorbent material disposed within a plurality of semipermeable membrane bags disposed within the chamber. Each semipermeable membrane bag is removed from the chamber in a pre-defined sequence over a period of time and the sorbent material in each bag is analyzed to determine an amount of the soluble contaminant sorbed by the sorbent material. From the results of the analyses, the mass of the soluble contaminant removed from the sediment over time can be calculated.
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