Abstract:
A fluid purification system, comprising: a first fluid purification media comprising a rigid porous purification block, comprising: a longitudinal first surface; a longitudinal second surface disposed inside the longitudinal first surface; and a porous high density polymer disposed between the longitudinal first surface and the longitudinal second surface; a second fluid purification media, comprising a fibrous, nonwoven fabric disposed adjacent to the first surface of the first fluid purification media, the second surface of the first purification media, or both.
Abstract:
A composition is disclosed comprising a particle comprising the produce produced by the contacting of a silicate and a titanium containing compound, and at least one of a peroxide containing polymer, a cosmetically acceptable carrier, or a combination thereof. Also disclosed is a method for preparing a composition, comprising a) contacting an aluminum containing compound, an alkali metal silicate, and optionally a base to provide an aluminum silicate containing solution; b) contacting the solution prepared in a) with a titanium containing compound to provide a titanium aluminum silicate; c) exposing the solution produced in a) and/or the titanium aluminum silicate produced in b) to UV radiation; and then at least one of contacting at least a portion of the product of c) with at least one peroxide containing polymer, and/or contacting at least a portion of the product of c) with a cosmetically acceptable carrier.
Abstract:
The invention relates to filtration media having nanocrystals of metal oxides, encapsulated in or impregnated into a binder matrix, which binds together particles of activated carbon. The filtration media can be compressed into a filtration block, has low pressure drop, and has excellent microbial removal properties.
Abstract:
The invention relates to filtration media having nanocrystals of metal oxides, such as zinc oxide or titanium oxide or mixtures thereof, encapsulated in or impregnated into a binder matrix.
Abstract:
Thiosulfate in anhydrous form is added in minute quantities to beverages such as soft drinks, citrus juices, coffee and a tea, or food mixes wherein tap water is added in quantities not greater than about two quarts and preferably not greater than about one quart, to neutralize or destroy chlorines or chloramines in the beverage and to reduce bitter tastes, such neutralization or destruction taking place almost instantaneously and, in any event, in a length of time not greater than about twenty seconds or, for most beverages, not greater than about three seconds, depending upon the pH of the beverage of food. The thiosulfate may be added directly to the beverage or to the water by metering apparatus or may have been previously applied in metered quantities to filters for the beverages including tea bags or may be mixed with syrup, powder mix, instant coffees or teas, coffee grounds or tea leaves, or may be encapsulated with a food grade material which is readily dissolvable in water. Because of rapid reaction of the thiosulfate with the chlorines and the chloramines, the neutralization or destruction of same is essentially complete before a person commences to consume the food or beverage. The thiosulfate may be applied in pellet form to beverages or applied to articles which are inserted into beverages or food or which receive same such as filter elements, tea bags, cups, stirrers, straws, and the like.
Abstract:
A drinking water filter for removing lead at point-of-use composed of specially treated gamma alumina particles between 48 and 100 mesh (0.148-0.297 mm), gamma alumina neutral (about 7 surface pH) or basic (about 9 surface pH) is washed in highly purified H.sub.2 O at 100.degree. C. to reduce alumima surface pH to 3.5-5.0 and then washed with highly purified H.sub.2 O at ambient temperature. The alumina is placed for three to twelve hours in bath having equivalent pH value (3.5-5.0) of acid electrolyte, diluted with a highly purified H.sub.2 O, preferably HCl, ascorbic acid or EDTA, adjusted to alumina surface pH level and desired degree of dilution by salts such as NaCl and/or alkalies such as NaOH to transfer to adsorbent surface materials that effect selective ion exchange with lead and other heavy metal ions or otherwise cause their removal from drinking water. Upon removal of alumina from bath, it is vacuum washed and then dried in an oven at 200.degree. C. to 350.degree. C. for about two hours. For wet packing in cartridges about 50%, and for dry packing about 98% of moisture is so removed Cartridges contain about 200 grams alumina for each one-half gallon capacity flow per minute, the treated alumina being tightly packed in the cartridges to prevent channeling while not causing a pressure drop at maximum rated capacity of more than about 10 psi across the cartridge. The filter is placed after a further filter using shavings of a zinc-copper alloy to remove chlorine and nitrates, the alumina filter removing zinc, copper, and other heavy metals leached from the zinc-copper alloy media.
Abstract:
A drinking water filter for removing lead at point-of-use composed of specially treated gamma alumina particles between 48 and 100 mesh (0.148-0.297 mm), gamma alumina neutral (about 7 surface pH) or basic (about 9 surface pH) is washed in highly purified H.sub.2 O at 100.degree. C. to reduce alumina surface pH to 3.5-5.0 and then washed with highly purified H.sub.2 O at ambient temperature. The alumina is placed for three to twelve hours in bath having equivalent pH value (3.5-5.0) of acid electrolyte, diluted with a highly purified H.sub.2 O, preferably HCl, ascorbic acid or EDTA, adjusted to alumina surface pH level and desired degree of dilution by salts such as NaCl and/or alkalies such as NaOH to transfer to adsorbent surface materials that effect selective ion exchange with lead and other heavy metal ions or otherwise cause their removal from drinking water. Upon removal of alumina from bath, it is vacuum washed and then dried in an oven at 200.degree. C. to 350.degree. C. for about two hours. For wet packing in cartridges about 50%, and for dry packing about 98%, of moisture is so removed. Cartridges contain about 200 grams alumina for each one-half gallon capacity flow per minute, the treated alumina being tightly packed in the cartridges to prevent channeling while not causing a pressure drop at maximum rated capacity of more than about 10 psi across the cartridge.
Abstract:
Thiosulfate in anhydrous form is added in minute amounts to beverages or food mixes, wherein tap water is added in quantities not greater than about one quart, to neutralize or destroy chlorines or chloramines in the water, such neutralization or destruction taking place almost instantaneously and, in any event, in a length of time not greater than about twenty seconds, depending upon the pH of the beverage or food. The thiosulfate may be added directly to the beverage or to the water or may be mixed with syrup or powder mix, and may be encapsulated with a food grade material which is readily dissolvable in water. Because of the rapid reaction of the thiosulfate with the chlorines and chloramines, the neutralization or destruction of same is essentially complete before a person commences to consume the food or beverage. The thiosulfate may be applied to articles which are inserted into the beverage or the food, or which receive same such as cups, stirrers, straws and the like.