Then we compared our results with any non-GMO-related claims. Find a list of all the products we tested in our full report. Genetically modified corn and soy are used in a wide variety of foods. Nearly all of the samples we tested of the products that did not make any non-GMO-related claim on the package did, in fact, contain substantial amounts of genetically modified corn or soy.
Below are the types of water filtration media stocked and distributed by Nalco PTS: 1  Anthracite Filter Coal, AnthrafiltÂ® is commonly used as sub-fill and as a component of multi-media filters. 2  Filter Sand and Gravel is also called Torpedo Sand/Coarse Sand/Support Gravel/Filter Gravel/Pea Gravel.
Carbon filtering is usually used in water filtration systems. In this illustration, the activated carbon is in the fourth level (counted from bottom). There are 2 predominant types of carbon filters used in the filtration industry: powdered block filters and granular activated filters.ach particle/granule of carbon provides a large surface area/pore structure, allowing contaminants the maximum possible exposure to the active sites within the filter media.