Abstract: A method of making a high efficiency, low pressure drop, adsorptive, non-woven filter composite is disclosed, comprising a high surface area chemically impregnated adsorbent, and a non-woven carrier material; and a method for forming said composite comprising dry application of the chemically impregnated adsorbent to the non-woven carrier material which is then heated and calendared with or without a cover sheet.

Abstract: Controlling quantity of outside air drawn into a building being based upon the rate of change in the concentration of pollutants in the air, whereby the quality of air inside the building is substantially controlled. An air system includes an intake port for coupling the air system to a source of outside air, a sensor located proximal to the intake port for monitoring the quality of the air, a regulator for controlling the quantity of air drawn into the building, and a controller coupled to the sensor and the regulator for directing the regulator to reduce the quantity of air drawn into the building in response to the rate of change of the concentration of the pollutants. Also, substantially controlling the quality of air inside a building by controlling the quantity of outside air drawn into a building based upon the concentration of carbon dioxide in the outside air.

Abstract: Disclosed is a biological process for recovering plutonium from soils using an iron-reducing bacterium, Bacillus circulans NRRL B-21037. A process for obtaining such bacteria is disclosed. The invention process gives upwards of about 88% yield of plutonium from soils. Further, pertinent gene(s) encoding enzymes obtainable from iron-reducing microbes can be used by placing such gene(s) on a suitable vector and transforming a competent host. The transformed host then can be used in the same manner as the native bacterium.

Abstract: Disclosed is an efficient biological process for recovering silver and manganese from refractory manganiferous silver ore. The process utilizes manganese reducing Bacillus sp. Specifically exemplified is a novel microbe designated Bacillus MBX 69, or mutants thereol Further, gene(s) encoding the enzyme(s) obtainable from the said bacteria can be used by placing such gene(s) on a suitable vector and transforming a competent host. The transformed host then can be used to recover silver and manganese from refractory manganiferous silver ore.

Abstract: Disclosed is an efficient biological process for recovering heavy metals from refractory ore, and a process for removing heavy metal contaminants from the soil. The process utilizes a potato extract growth medium (PEGM) to greatly increase the efficiency for recovering heavy metals from ores and for removing heavy metal contaminants from soil. Microbes which can be used in the process are manganese reducing Bacillus sp., or mutants thereof which retain the metal recovering properties of the parent microbe. Further, recombinant microbes, as disclosed herein, can be used in the same manner as the native microbe.

Abstract: Disclosed is an efficient biological process for recovering heavy metals from refractory manganiferous ore, and a process for removing heavy metal contaminants from the soil. The process utilizes manganese reducing Bacillus sp. Specifically exemplified is a novel microbe designated Bacillus MBX 69, or mutants thereof, and the known microbe Bacillus polymyxa, which is disclosed in U.S. Pat. No. 5,055,130. Further, gene(s) encoding the enzyme(s) obtainable from the said bacteria can be used by placing such gene(s) on a suitable vector and transforming a competent host. The transformed host then can be used in the same manner as the native microbe. Also, the enzyme(s) themselves can be used in the above-described processes.