In this process ground water is pumped to the surface and is coupled with either biological or chemical treatments to remove the impurities.
The factsheets provide both organic and chemical treatments as well as advice to help you prevent problems in the future.
What would have happened if they [new methods of physical and chemical psychiatric treatments] had been available for the last five hundred years?
Because the apo-ovotransferrin is iron-deprived, it is easily destroyed by physical and chemical treatments.
New York City's short-term response to declining water quality has been chemical treatment.
Toughened glass is processed by controlled thermal or chemical treatments to increase its strength compared with normal glass.
It also has good sources of potable water that may not require chemical treatment.
A different, and sometimes less time consuming option for the control of kudzu is chemical treatment with herbicides.
Treating the grubs can be very difficult and chemical treatment is more effective as a preventative rather than reactionary measure.
In general this step is merely mechanical (cutting, grinding, fibrillating etc.), but it can also be combined with a thermal or chemical treatment.