X-Tex-Z-200 incorporates zeolite embedded between two layers of X-Tex fabric. One of the main problems of using ion exchange materials for removing metals and nutrients is the premature failure caused by oil contamination of the material. By embedding zeolite between X-Tex layers we have resolved the problem of oil contamination by trapping the oil before the influent makes contact with the zeolite.

There are many types of zeolites (clinoptilolite, chabazite, phillipsite, mordenite, etc.) with different chemical and physical characteristics. Crystal structure and chemical composition account for much of the differences. Particle size and density, cation selectivity, and pore size are only some of the characteristics that can differ depending on the zeolite in question. Variations not only occur between different types of zeolites but also in the properties of zeolites of the same group.

Through extensive research and consultation with contracted scientists, The Xextex Corporation has developed a proprietary blend that removes targeted contaminates. How well does X-Tex-Z-200 work? Tests performed demonstrate the following removal efficiencies:

Zinc

69%

Lead

96%

Copper

76%

Cadmium

75%

TEST
A test solution was made up using the above-mentioned metals to a concentration of approximately 10 ppm. Three layers of the X-Tex-Z-200 were cut out and placed one at a time inside a funnel. After each layer was placed in the funnel, one liter of the test solution was poured through the X-Tex-Z-200. The solution flowed without restriction consecutively through the 3 combined layers of X-Tex-Z-200.

The table below summarizes the results of this test. The sample layer named “raw” was the actual concentrations of metals in the test solution.

Removal of Metals with X-Tex-Z-200
Removal ZN* PB* CU* CD*
RAW 9.5 8.9 9.3 13.2
L1 5.8 2.5 5.2 9.3
L2   4.5 1.5  3.9  6.5
L3     2.9 0.4 2.2 3.3

*ppm

The removal rate for each layer is summarized below:

Percent Removal by Layer
Removal     ZN PB CU CD
L1     39% 72% 44% 30%
L2     53% 83% 58% 51%
L3     69% 96% 76% 75%

The results from this test indicate that X-Tex-Z-200 can substantially remove soluble metals from storm water and help bring users into compliance with their storm water regulation. Variation of X-Tex-Z-200 will be tested in the near future to improve the efficiency for removal of metals and nutrients. The graph below also illustrates the efficiency of X-Tex-Z-200 for removal of metals in water.