Abstract: A vadose zone for a leaching field which enables the construction of a leaching field in terrain where conventional leaching fields cannot be constructed. Such terrain also comprise areas where a high water table exists or where percolation tests fail. The vadose zone is constructed adjacent to the leaching field which is buried in a layer of soil which has been constructed over a nonporous barrier such as a plastic sheet or ledge or clay. The effluent from the leaching field is forced to move sideways out of the leaching field into the adjacent soil. The adjacent soil becomes a vadose zone to complete treating the effluent. The effluent is forced to flow through a prescribed predetermined distance through the vadose zone before it is permitted to disperse through the soil toward the water table or over the clay or ledge.

Abstract: The invention is directed to a sewage treatment system and method for treating sewage by microbes. The system includes and the method uses a settling tank with residual activated sludge and mixed liquor and an activated biofilm filter. Incoming sewage into the settling tank forms a settling tank liquor mixed liquor. Increments of the settling tank liquor mixed liquor are treated in the activated biofilm filter and returned to the settling tank where the treated mixed liquor improves the quality of the settling tank liquor mixed liquor in the settling tank. The process of treating and returning incremental quantities of the settling tank liquor mixed liquor continues over a Predetermined period of time after which the sewage is fully treated.

Abstract: The invention is directed to a sewage treatment system and method for treating sewage by microbes. The system includes and the method uses a settling tank with residual activated sludge and mixed liquor and an activated biofilm filter. Incoming sewage into the settling tank forms a settling tank liquor mixed liquor. Increments of the settling tank liquor mixed liquor are treated in the activated biofilm filter and returned to the settling tank where the treated mixed liquor improves the quality of the settling tank liquor mixed liquor in the settling tank. The process of treating and returning incremental quantities of the settling tank liquor mixed liquor continues over a Predetermined period of time after which the sewage is fully treated.

Abstract: The invention is directed to a sewage treatment system comprising a tank in which biological treatment by microorganisms occur in mixed liquor and a circulating loop for removing mixed liquor from the tank and returning oxygen enriched aerated mixed liquor to the tank. The mixed liquor is removed and returned to the tank through a pair spaced apart submerged filters. One alternative construction is to use a pressure tank in the circulation loop to increase the percentage of dissolved oxygen in the aerated mixed liquor.

Abstract: A portable workbench is constructed so as to accept miter saws of any size in a simple and convenient manner. The workbench comprises a power tool supporting site and a workpiece supporting surface wherein the power tool supporting site and workpiece supporting surface are adjustable in a substantially vertical direction relative to each other. The power tool supporting site and workpiece supporting surface are each constructed of two frames which are adjustable in a substantially horizontal direction so as to accept any size miter saw on the power tool supporting site.