Abstract: A filtration tank (1) for purification of polluted water includes a chamber (12). Upper and lower filtration screens (20, 22) are supported within the chamber. Filtration particles (18) are confined between the upper and lower screens. Polluted water enters the chamber through an inlet (26), passes through the screens and the filtration particles and exits the chamber through a purified water outlet (28). Periodically, the inlet and outlet are closed and the water in the chamber is drained through a drain outlet (32). Nozzles (42, 45) spray cleaning fluid over the filter particles and screens to dislodge trapped dirt.

Abstract: The subject invention concerns a novel plasmid and its use in a microbial host to degrade a variety of organic compounds. Some of these compounds, such as ethylene dichloride, are undesirable waste products found in various dump sites. The invention also concerns a novel microbe hosting the novel plasmid. The novel plasmid has been shown to encode the gene(s) responsible for the degradation of the organic compounds. Thus, microbes hosting this plasmid, denoted pEDC, can be used to degrade ethylene dichloride, and other compounds.

Abstract: The subject invention concerns a novel plasmid and its use in a microbial host to degrade a variety of organic compounds. Some of these compounds, such as ethylene dichloride, are undesirable waste products found in various dump sites. The invention also concerns a novel microbe hosting the novel plasmid. The novel plasmid has been shown to encode the gene(s) responsible for the degradation of the organic compounds. Thus, microbes hosting this plasmid, denoted pEDC, can be used to degrade ethylene dichloride, and other compounds.