In a batch filter there is a risk that dissolution of a particulate form of a heavy metal may take place within the filter media unless the design is based on a thorough understanding of
local water chemistry and what bacteria are doing inside the filter.
Other tests have shown only a reduction of fluoride, which depends entirely on
local water chemistry.
Not exact matches
When roasters test their beans, they do so using
local water, so you can at least assume that locally - roasted coffee is optimized for the
chemistry of your
water.
IMO is leading a European Union — funded effort called FUTUREVOLC to build a comprehensive database of
local volcanic data and develop new tools — including new seismic stations,
water chemistry samplers, and ground - and airplane - based ash detectors.
It is about kids building robots and bridges and learning physics and engineering in thoseprojects; kids testing the
water in their schools and the
local streams and learning
chemistry and biology in the process.
In some cases, global warming as a consequence of the build - up of carbon dioxide levels in the atmosphere because of fossil fuel burning has altered the
water chemistry and
local climate and food supplies for seabird colonies.