Abstract: A process for neutralizing chloramines, chlorine and ammonia in marine and fresh waters by adding an alkali metal formaldehydebisulfite in a dry or solution form in which the alkali metal formaldehydebisulfite is selected from the group consisting of sodium formaldehydebisulfite and potassium formaldehydebisulfite. Preferably, the alkali metal formaldehydebisulfite is sodium formaldehydebisulfite added in the amount at least equal to the greater of the quantity required to react on a one to one molecular basis with 4 times the stoichiometric amount of ammonia, 12 times the stoichiometric amount of monochloramine, 10 times the stoichiometric amount of dichloramine or 12 times the stoichiometric amount of chlorine in the form of hypochlorites present in the water to be treated.

Abstract: A waste water control method and means comprising three basic units, a first unit including a flush booth wherein a radiator, or the like, may be exteriorly sprayed and/or interiorly flushed in the usual manner, and a multi-compartmented sump arranged for receiving the fluid draining from the spraying and/or flushing operation; a second unit including a first settling compartment wherein the fluid from the sump is received for a separation of heavy particles or components of the fluid from lighter components thereof, the lighter components of the fluid being directed to a first holding compartment for a chemical bath treatment thereof to substantially eliminate undesirable organic matter from the fluid; and a third unit including a second settling compartment for receiving the fluid from the first holding compartment to provide a final separation of heavier components of the fluid from the lighter components thereof, and a second holding compartment in communication with the second settling compartment for re

Abstract: A method of removing radioactive waste from oil in which all particulates, radioactive contaminants, and moisture are removed from the oil. Particulate matter is removed from the oil by a combination of filtering and heating. Radioactive contaminants are reacted with chlorine to form salts which are removed by filtration. Moisture is removed by use of a flash tank.

Abstract: A system is provided for removing iron and/or other chemically reducing substances from potable water having a pH between 5 and 9. The system includes a tank for receiving the water which tank contains a bed of activated carbon. The untreated water is aerated prior to its communication with the activated carbon. All of the aerated water is allowed to flow through the bed and the activated carbon provides a catalytic action, whereby substantially all of the oxidation occurs throughout the bed of activated carbon and the use of chamical oxidizing agents is obviated. The tank provides a reaction site for oxidation in the catalyst, precipitation of the oxidized ions, and retention by filtration of the precipitated particles.

Abstract: Method, composition and article of manufacture to inhibit the staining of water-contacting surfaces, such as those in a toilet bowl, which is caused by manganese present in household water in the presence of an oxidizing material. Manganese staining is inhibited by supplying to the water 0.05 ppm to 10 ppm of a glassy phosphate having the formula MO(MPO.sub.3).sub.n M wherein M is sodium or potassium and n is an integer of from about 6 to about 21.

Abstract: An improved method for treating alkaline industrial process waters to control the growth and deposit of microorganisms which comprises adding to such waters a combination of a water-soluble anionic polymeric dispersant having a molecular weight not greater than 50,000 and hypobromous acid, said hypobromous acid having been produced by contacting a solution containing:(a) a water-soluble inorganic bromide, and(b) an anionic polymeric dispersantwith a chlorine containing oxidant chosen from the group consisting of an inorganic hypochlorite salt, hypochlorous acid, and chlorine.

Abstract: A tower of contact media, having thereon bio-slimes kept wet and active by a recirculating nutrient liquid, and through which gases, such as foul air of a sewage treatment plant, pass for odor removal by biochemical action aided by liquid trickling downward through the media, and which may be conventional in many respects, is provided with:(a) A gas recirculation system, i.e., means for drawing off gas which has passed once upwardly through the media and reintroducing it for passage through the media with raw incoming gases so that on the average the gases have more than one passage through the media,(b) Means for distributing on a layer of the media higher than the usual recirculation of liquid a solution such as hypochlorite for removal of residual odors left or caused by the recirculating liquid, and(c) Successive sections of media of differing coarseness.

Abstract: A process is provided for filtration of aqueous oil-containing brines that are substantially free from viscosity-increasing agents, which comprises adding to the aqueous oil-containing brine having a tendency to contaminate and plug a filter a sufficient amount of an oxidizing agent capable of reacting with plugging contaminants present in the brine to alleviate the plugging tendency, thereby extending filter life.

Abstract: A process for achieving the partial dewatering of an organic sludge by isolating a batch of the sludge, acid adjusting its pH into a range from 3 to 5, and adding an oxidizing reagent in the presence of the acid in sufficient quantity so that within one-half hour the cellular structure of the sludge has been partially broken down and enough occluded water released therefrom to increase the pH by at least one, while at the same time changing the color of the sludge to a light tan and deodorizing it and killing the pathogens therein, the sludge and other solids settling down below the supernatant liquid with a clear line of demarcation therebetween.

Abstract: The method of treating human waste in a toilet system for disposal of the waste and recovery of the flushing liquid comprising reducing the solid matter in the effluent by hydraulic attrition in substantially one and a half liters of water containing an effective amount of decontaminant to a particle size which ranges from 1/8 inch to 1/2 micron and in which the solid matter in excess of 1/64 of an inch does not exceed more than 18% of the total solid matter, filtering the solid matter from the water and employing the filtered water following each flushing operation for a succeeding flushing of the system.

Abstract: There is described a device comprising a filtering compartment enclosing a filtering body, an inlet for unfiltered water and an outlet for filtered water, said inlet being preceded by a liquid-receiving compartment which communicates with a container containing a sterilizing product at a level lower than the highest permissible water level inside said receiving compartment and above the filtered water outlet level.

Abstract: Disclosed is a hypochlorite decomposition catalyst of nickel (II) oxide and NiCo.sub.2 O.sub.4 spinel, a hypochlorite destruction process using the catalyst, and a method of synthesizing the catalyst on a porous support.

Abstract: Ascorbic acid, preferably enhanced in combination with copper sulfate, is an effective additive for water supplies in preventing the development or reducing the concentration of carcinogenic materials contained therein.

Abstract: A process is provided for the waste treatment of metal plating solutions One embodiment of the process comprises removal of the metal values contained in solution and inactivation or destruction of the complexing agent's ability to complex heavy metals. A second embodiment comprises inactivation or destruction of the complexing agent as a first step, formation of a sludge if not formed by inactivation of the complexing agent and sludge removal. Either embodiment permits direct discharge of spent plating solutions into the environment without violation of federal or municipal regulation.

Abstract: A process is described for cleaning water containing devices, for example, conventional home flush toilet bowls. Dibasic magnesium hypochlorite is dissolved in the water in the flush tank and thereafter delivered to the bowl when the toilet is flushed. This technique minimizes the deposition of scale on the toilet flush tank and the toilet bowl surface in contact with the water.