A method of and system for naturally treating sewage suitable for residential dwellings on land which will not support a conventional septic tank and drain field are disclosed. The system includes a conventional septic tank, a rock/plant filter, a dosing chamber, a shallow horizontal flow pulsed planted aggregate filter, and an effluent holding tank.

The present invention provides a water plant treatment system in which the nitrogen and phosphorus components and other contamination substances are removed from the water which has been treated biologically by the conventional system. The water plant treatment system according to the present invention includes a distribution section for temporarily storing the incoming waste water to distribute it to the next stages, a first section for filtering the waste water of the distribution section by m...

A system and method for removal of uranium and other contaminants from aqueous solution, utilizing live algae, are described. The system includes a bioreactor, in which a reaction mixture of live algae, preferably photosynthetic algae, and contaminated solution are introduced; a means for introducing carbon dioxide gas in the reaction mixture; a means for exposing the reaction mixture to light; means for mixing and impelling the reaction mixture; and means for separating out algae from remediate...

A complete storm water management system and process which performs both drainage and treatment tasks and incorporates a wetlands water treatment system. This system creates an infrastructure, flow control which is multi-level and multi-stage. This system incorporates a self-contained wetlands treatment system. This is a modular system which includes three or more linear chambers through which the storm water or other influent passes and is cleaned. The influent which flows into a storm drain, c...

Periphyton filtration is a known method for performing bioremediation of polluted water, removing nutrients from the influent on which the attached algae thrive. The present system improves upon this method by establishing a water-treatment facility for adding a strong oxidizer to the influent, and, in some cases, to the effluent, to make organically bound nutrients available to a target culture of periphyton or aquatic plants to reduce the population of undesirable microinvertebrates, to make o...

Purification of liquid agricultural wastes, such as, in particular, liquid anure, by means of an algae/bacteria mixture culture and a subsequent rotifer culture in a separate stage. The pH-value of the algae/bacteria mixture culture is controlled, especially by the waste water charging thereof, in such a way that a multiplication of rotifers in this stage is inhibited or precluded. The algae/bacteria mixture culture preferably occurs in shallow open air ponds for a period of time which depends u...

A method and means for application of wastewater to plants for improved wastewater treatment having an overhead distribution system for application of wastewater to plants. Purification of agricultural, commercial, domestic, mining and industrial liquid wastes by passage of said wastes through a shallow basin, pond, tank or the like covered with water or other species of Pontederiaceae, e.g. Pontederia spp., in particular, and other species cultured in a hydroponic mode in conjunction with or se...

The present invention includes a portable Sub-Surface Flow Constructed Wetlands system for removing pollutants from a body of water. The portable wetlands system includes a sealed container having pipes for the inflow and outlet of the water. The system also includes a high surface area substrate located in a lower portion of the container and a heavier substrate and at least one emergent aquatic plant located in an upper portion of the container. The container of the system may be mounted on a ...

A method of biological treatment is developed for completely removing the compost remaining after decomposing the dissolyed organic matter (COD) in wastewater by the bacteria or fungi. It comprises the steps of: adopting the algae and diatoms cultivated under the special conditions to treat wastewater containing excreta, applying Calcium Salt and Silica Salt to develop a competence cell in the algae and diatoms, removing insoluble composts after decomposing the dissolyed organic matter (COD), re...

A method of decontaminating a medium containing polychlorinated biphenyls (PCBs) or dioxins is disclosed. The contaminated medium is brought into contact with hairy roots derived through introduction of an Ri plasmid from Agrobacterium rhizogenes into a plant capable of absorbing, or absorbing and decomposing PCBs or dioxins, or is brought into contact with regenerated plantlets derived from the hairy roots, to thereby cause the hairy roots or regenerated plantlets to absorb, or absorb and decom...