Abstract: A bactericidal composition and method for inhibiting and controlling the growth of the capsulated, facultative bacterium, Klebsiella pneumoniae, are disclosed. The composition comprises an amount, effective for the intended purpose, of 2-bromo-2-nitropropane-1,3-diol ("BNPD") and paratolyl sulfonyl acrylonitrile ("PSA"). The method comprises administering between about 0.1 to about 200 parts of this combined treatment (based on one million parts of the desired aqueous system) to the particular water containing system for which treatment is desired.

Abstract: A bactericidal composition and method for inhibiting and controlling the growth of the capsulated, facultative bacterium, Klebsiella pneumoniae, are disclosed. The composition comprises an amount, effective for the intended purpose, of 2-bromo-2-nitropropane 1, 3-diol ("BNPD") and bis(trichloromethyl)sulfone ("BTCMS"). The method comprises administering between about 0.1 to about 200 parts of this combined treatment (based on one million parts of the desired aqueous system) to the particular water containing system for which treatment is desired.

Abstract: A method of controlling the fouling potential of macroinvertebrates, such as mollusks, in aqueous systems which comprises adding to the system an effective controlling amount of a water-soluble quaternary ammonium salt having the following structure: ##STR1## wherein R.sub.1 is an alkyl group having about 6 to 24 carbons; R.sub.2 is an alkyl, aryl or arylalkyl group having about 6 to 24 carbons; R.sub.3 and R.sub.4 are alkyl groups having about 1 to 4 carbons; and X is chloride, bromide, sulfate, bisulfate, nitrate or acetate. Preferably, the quaternary ammonium salt is water-soluble alkyl dimethyl benzyl ammonium chloride having an alkyl chain length from C.sub.6 to C.sub.24 and, most preferably, it has an alkyl distribution of about 40% C.sub.12, 50% C.sub.14 and 10% C.sub.16.

Abstract: A bactericidal composition and method for inhibiting and controlling the growth of the capsulated, facultative bacterium, Klebsiella pneumoniae, are disclosed. The composition comprises an amount, effective for the intended purpose, of 2-bromo-2-nitropropane-1, 3-diol (BNPD) and an oxidizing biocide. The method comprises administering between about 0.1 to about 200 parts of this combined treatment (based on one million parts of the desired aqueous system) to the particular water containing system for which treatment is desired.

Abstract: This invention relates to the generation of acrolein from an acetal of acrolein via exposure to a sulfonic acid reusable catalytic material. The acrolein acetals have the following general structures; ##STR1## where R may or may not be equal to R' R/R' is an alkyl group having from 1 to 6 carbons; and ##STR2## where R is a cyclic diol derived from ethylene glycol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, glycerol hexoses or polyaccharides.

Abstract: Certain Mannich reaction products (i.e., alkylated phenol, polyoxyalkylenediamine, and an aldehyde) are used to deactivate iron species already present in hydrocarbon fluids. Left untreated, such iron species lead to decomposition resulting in the formation of gummy, polymer masses in the hydrocarbon liquid.

Abstract: A process for controlling pitch deposition from pulp in papermaking systems which comprises adding to the pulp an effective amount of a polymer containing polymerized units of methyl vinyl ether.

Abstract: A bactericidal composition and method for inhibiting and controlling the growth of the capsulated, facultative bacterium, Klebsiella pneumoniae, are disclosed. The composition comprises an amount, effective for the intended purpose, of n-alkyl dimethyl benzyl ammonium chloride and tetraalkyl phosphonium halide. The method comprises administering between about 0.1 to about 200 parts of this combined treatment (based on one million parts of the desired aqueous system) to the particular water containing system for which treatment is desired.

Abstract: A bactericidal composition and method for inhibiting and controlling the growth of the capsulated, faculative bacterium, Klebsiella pneumoniae, are disclosed. The composition comprises an amount, effective for the intended purpose, of methylene bis(thiocyanate) and a tetraalkyl phosphonium halide compound. The method comprises administering between about 0.1 to about 200 parts of this combined treatment (based on one million parts of the desired aqueous system) to the particular water containing system for which treatment is desired.

Abstract: An improved apparatus and process for feeding hypochlorite solution from a source of the solution to a device for removing impurities from water in a water treatment system is disclosed. The improvement comprises a first means for continuously measuring the oxidation/reduction potential of the effluent water of the device, and a second means operatively connected to the first means and the pump means continuously controlling the feed-rate of the pump means in response to the measured oxidation/reduction potential of the effluent water, thereby maintaining a predetermined oxidation/reduction potential in the effluent water of the device.

Abstract: Stable, thixotropic slurries comprising wood-based powdered activated carbon and an effective amount of a polysaccharide suspending agent are disclosed. Such slurries are useful as water clarification and coagulation aids.

Abstract: A method of controlling the fouling potential of macroinvertebrates, such as mollusks, in aqueous systems which comprises adding to the system an effective controlling amount of a water-soluble alkyl guanidine salt wherein the alkyl group has from about 8 to about 18 carbons.

Abstract: Alkoxylated Mannich product compositions and methods of use of same as process antifoulants are disclosed. The alkoxylated Mannich products deactivate metals and inhibit oxygen promoted polymerization in hydrocarbons and petrochemicals.

Abstract: Methods for controlling the formation of fouling deposits in petroleum hydrocarbons or petrochemicals during processing at elevated temperatures are disclosed. The methods comprise adding from about 0.5-10,000 ppm of an amine salt of polyalkenylthiophosphonic acid to the desired petrochemical or hydrocarbon.

Abstract: The present invention involves the use of a methyl cellulose derivative to control the depositing tendency of adhesive materials contained in waste paper and paper products which are being utilized to produce finished paper products.

Abstract: The invention relates to a process for controlling pitch deposition from pulp in papermaking systems which comprises adding to the pulp an effective amount of a water-soluble quaternized polyamine ionene polymer.

Abstract: Methods and compositions for reducing organic color contamination in influent water are disclosed. The methods comprise adding to the influent water powdered activated carbon and a water soluble or water dispersible cationic polymer. The polymers are chosen from: (a) polyquaternary ammonium polymers formed from reaction of a secondary amine with an epichlorohydrin or epoxide (b) cross-linked polyquaternary ammonium polymers formed from reaction of a secondary amine, epichlorohydrin or epoxide, and a third reactant selected from the group consisting of ammonia, primary amines, alkylenediamines and polyamines and (c) substantially linear high molecular weight polyquaternary ammonium polymers of the type disclosed in U.S. Pat. No. 3,288,770, such as polydiallyldimethyl ammonium chloride. Compositions comprise a slurry comprising powdered activated carbon and at least one polymer chosen from the (a) (b) and (c) groupings and mixtures thereof.