A synthetic structure is used to simultaneously provide food, shelter and reproductive support for many aquatic species. Synthetic seagrass may be produced in the form of flexible mats with a plurality of ribbons. The lower ends of the ribbons are anchored to the benthos. The other ends of the ribbons are buoyantly supported in the photic zone. The ribbons may be economically produced in plural coextensive layers, with one layer providing buoyancy and the other layer being structured to enhance biological growth. The system may be tailored for use in desired applications by selecting the surface area structure, ribbon spacing and density, and other parameters. The system may be used to remove nutrients and/or toxic materials from water. The invention may be used to simultaneously promote aerobic and anaerobic reactions to control water quality.
This is a continuation-in-part of U.S. patent application Ser. No. 08/943,335, filed Oct. 3, 1997, the entire disclosure of which is incorporated herein by reference.
Submerged media useful with or without aeration and/or mixing to enhance an aquatic environment by promoting and retaining biogrowth. The media takes the form of a cluster of individual flexible elements having free ends. The media are submerged in a liquid such as a water or wastewater treatment basin or an aquaculture environment. The media are characterized by the ability to promote and retain microbial growth. The media clusters have substantial flow through thicknesses to provide a three dimensional effect along with baffling for increased contact with the liquid being treated. The media may be thin strips constructed to avoid sticking together to allow maximum exposed surface area. The media clusters can create oxic, anoxic and anaerobic environments for maximum treatment during flow through the media cluster. The flexibility of the media elements and their free ends automatically dislodges excessive biomass buildup to avoid clogging of the media.
A biodegradable absorbent mat for absorbing and containing moisture including debris from pet feet, consisting of a bottom layer formed of an organic absorbent mesh composite, a top layer affixed and overlying said bottom layer, having an alternating combination of stitched paper ruffles and helically intertwined brush fibers. The organic mesh composite may be burlap or paper, treated with starch for rigidity, and then coated with a natural gum or latex to enhance friction grip and provide a moisture barrier. The configuration of the stitched paper ruffles, provide maximum exposure of the cut linear edges of the ruffles to a pet's feet. The cut linear edges wick away moisture increasing the rate of absorbency. The stitched paper ruffles provide increased capacity for absorbency and debris containment. The helically intertwined brush fibers primarily remove debris from pet feet, and also provide a secondary function of containment of debris.
A neutrally buoyant synthetic aquatic structure may be used to treat a body of water by removing nutrients and other materials from the water. According to another aspect of the invention, the synthetic structure may be used to promote and/or control the growth of aquatic species in a body of water. In a preferred embodiment of the invention, a denser-than-water ballast portion is suspended from buoyant material to stabilize and orient the synthetic structure. A high surface area structure for promoting biological growth may be provided. The ballast portion does not sink to the bottom of the body of water. Consequently, the high surface area structure may be maintained in the photic zone.
