Layered capillary wetting
AssigneeGeomatrix, LLC
InventorDavid A. Potts
Life of this patent
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Abstract
Relatively greater capillarity material layers and relatively lesser capillarity material layers are provided. These layers can be used to promote capillary wetting in capillary wetting zones to promote prolonged periods of water retention. Carbon sources present in the capillary wetting zones may exhibit prolonged use provided by limited drying and wetting cycles experienced in the capillary wetting zones. Carbon sources positioned between saturated layers may exhibit prolonged use provided by anoxic conditions created by upper and lower water seals of the saturated layers. Capillarity layers can be employed in infiltration systems handling water, such as residential wastewater.
Claims19
A water infiltration system comprising:
- a wastewater dosing conduit;
- a first group of layers and a second group of layers, the first group of layers having a first layer and a second layer, the second group of layers having a third layer and a fourth layer, the first group of layers positioned below the wastewater dosing conduit, a means to introduce a carbon source material positioned in or below the second layer, the first layer adjacent to and above the second layer, the third layer adjacent to and below the second layer, wherein the first layer comprising a first material and the second layer comprising a second material the first material having a capillary action material property and the second material having a capillary action material property, wherein the capillary action material property of the first material is greater than the capillary action material property of the second material;
- and the third layer comprising a third material and the fourth layer comprising a fourth material, the third material having a capillary action material property and the fourth material having a capillary action material property, wherein the capillary action material property of the third material is greater than the capillary action material property of the fourth material, wherein a carbon source material is present in at least the first layer or the second layer or the third layer or the fourth layer, and wherein the carbon source material comprises oil;
- and wherein the water infiltration system is configured to promote nitrification and denitrification.
A water infiltration system comprising:
- a wastewater dosing conduit;
- a first layer of a first material, the first material being a first sandy material having a capillary action material property, the first layer of the first material positioned below the wastewater dosing conduit;
- a second layer of a second material having a capillary action material property, wherein the capillary action material property of the second material is less than the capillary action material property of the first material such that the capillary rise height of water in the second material is less than the capillary rise height of water in the first material, the second layer below the first layer, the second layer adjacent to the first layer, and comprising a means to introduce a carbon source into the second layer;
- and a third layer of a third material having a capillary action material property, the third material being a second sandy material, the third layer below the second layer, the third layer adjacent to the second layer;
- wherein the second material has a water permeability greater than the water permeability in the first material and wherein a first carbon source is present in the second layer, the first carbon source comprising oil;
- and wherein the water infiltration system is configured to promote nitrification and denitrification.
Dependencies are inferred from the claim text.