Leach

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Leach

Bernard (Howell). 1887--1979, British potter, born in Hong Kong
References in periodicals archive ?
This study proposes to investigate the influence of ammonia on the amount of copper leached from copper-amine-treated wood.
All the devices Townsend tested leached lead over this threshold under some conditions.
A 2001 study at the University of Minnesota found that arsenic leached from CCA-timber edging in raised-bed gardens, although it didn't elevate crop-arsenic concentrations to worrisome levels.
In this method, prepared ore is leached on the pad, washed, and then removed to a final disposal area.
The analysis of copper in leached copper amine-treated blocks was conducted using an ASOMA[TM] X-ray fluorescence analyzer.
Of particular concern, Townsend says, are laboratory data indicating that leached metals could contaminate groundwater and eventually drinking water.
They leached the auger samples to determine how the leachate might vary among different wastes in various areas of the landfill.
Percent component leached was estimated from the initial wood retention (total [micro]g/sample) and [micro]g lost (concentration of leachate x leachate volume).
Then, they crushed the glass into fine and coarse particles, shook 100 grams of each sample in a beaker of acidic water for several hours, and measured how much lead had leached into the water.
According to Mike Slattery of the AFS solid waste committee and a project manager for RMT, Inc, a Wisconsin-based environmental consulting firm, "With the current standards, it is possible that one foundry with waste that leached lead at 4.
Treated wood was dried, and leached as per a modification of the American Wood-Preservers' Association E-11-9 standard for 2 weeks.