Abstract: The present embodiments generally relate to compositions and methods for the treatment of fluids in need of treatment, such as, for example, industrial wastewaters. The compositions and methods for treating the fluids in need of treatment generally comprises the use of one or more stable ferrous products in amounts effective to treat said fluids.

Abstract: The invention relates to a method for producing coagulant aluminium salts. Raw material comprising at least one aluminium oxide compound is mixed with a process acid or a base to form a reaction mixture, which is heated to a reaction temperature of at least 100° C. at a reaction pressure. The aluminium oxide compound is allowed to react with the process acid or the base. The aluminium oxide compound is selected from a group consisting of amorphous aluminium oxide, ?-aluminium oxide, ?-aluminium oxide, ?-aluminium oxide, or any of their mixtures. The reaction pressure is at least 2 bar(g).

Abstract: The present embodiments generally relate to compositions and methods for the treatment of fluids in need of treatment, such as, for example, industrial wastewaters. The compositions and methods for treating the fluids in need of treatment generally comprises the use of one or more stable ferrous products in amounts effective to treat said fluids.

Abstract: The present embodiments generally relate to the treatment of produced water such as produced water resulting from an industrial process such as one involving the use of copious amounts of water and the addition of one or more polymers such as water soluble and/or viscosifying or thickening polymers, in particular enhanced oil recovery processes or another processes resulting in polymer flooded produced water. These treatment methods include contacting the produced water with one or more PACl-based coagulants, wherein said treatment may result in desired effects, such as, for example, a reduction of the viscosity of said produced water and/or the removal of polymers which are contained therein.

Abstract: The present invention concerns a process for recovering phosphates from wastewater by adding to the wastewater at least one organic coagulant or polymer in a mechanical treatment step that leaves dissolved phosphorus in the water phase, separating a mechanical sludge from the treated wastewater, preferably by sedimentation, flotation or filtration, carrying the phosphorus-containing treated wastewater in a post-treatment step, where at least one chemical precipitant is added to precipitate the dissolved phosphate into solid phosphates, and separating the solid phosphates from the treated wastewater to recover the phosphates.

Abstract: The present invention relates to a composition for treatment of wastewaters in a membrane bioreactor comprising a mixture of inorganic coagulants and organic water soluble polymer(s), wherein the inorganic coagulants are selected from iron and/or aluminium containing compounds and the organic water soluble polymers are selected from the group consisting of anionic, cationic, nonionic polymers, polysaccharides and polyphenolic compounds and any combination thereof. The present invention further relates to a method for treating of wastewaters in a membrane bioreactor, and uses thereof.

Abstract: The present invention concerns a process for producing a high purity phosphorus product from wastewater, by carrying to the process phosphate-containing wastewater that has been treated to remove biomass and other impurities, not including dissolved phosphates, creating floes using one or more iron, aluminium, magnesium or calcium salts, adding an alkali metal or alkaline earth metal hydroxide or oxide to the flocs in an amount effective to react the iron, aluminium, magnesium or calcium salt into the corresponding hydroxide, separating the hydroxide from the formed phosphate, and obtaining the high purity phosphorus product in a form of a liquid or solid phosphate salt.

Abstract: The present invention concerns a process for recovering phosphates from wastewater by adding to the wastewater at least one organic coagulant or polymer in a mechanical treatment step that leaves dissolved phosphorus in the water phase, separating a mechanical sludge from the treated wastewater, preferably by sedimentation, flotation or filtration, carrying the phosphorus-containing treated wastewater in a post-treatment step, where at least one chemical precipitant is added to precipitate the dissolved phosphate into solid phosphates, and separating the solid phosphates from the treated wastewater to recover the phosphates.

Abstract: The present invention relates to a composition for treatment of wastewaters in a membrane bioreactor comprising a mixture of inorganic coagulants and organic water soluble polymer(s), wherein the inorganic coagulants are selected from iron and/or aluminium containing compounds and the organic water soluble polymers are selected from the group consisting of anionic, cationic, nonionic polymers, polysaccharides and polyphenolic compounds and any combination thereof. The present invention further relates to a method for treating of wastewaters in a membrane bioreactor, and uses thereof.