Abstract: Polymeric products which after special cross-linking become macroreticular and acquire the ability to absorb organic solvents and petroleum products which are released in the water, in the amount of 40-80 gram of oily matter/gram of polymer. The macroreticular polymers include polystyrene, trimeric copolymer with styrene, ethylene, butadiene (SEBS) elastomeric SBR with styrene 10%, 20% and 40% fully hydrogenated to saturation, which after special cross-linking in chlorinated solvents with a cross-linking agent forms a thick cross-linked mass which is cut and deodorized. These products are used in a polypropylene net and are swept on the surface of water basins, harbors or the surface of sea to collect the oily matter and the petroleum by endomolecular absorption and by external surface adherence, and the loaded net is washed with petroleum to remove all absorbed oily matter as useful fuel. The net with the absorbing polymers is then ready for reuse.

Abstract: An original method and products are described for fire quenching in all substrata such as forests, cultivated areas, city areas, industrial units, transport vehicles, etc. Aqueous suspensions of fire quenching special products contain endomolecularly water up to 300 g water/g of polymeric product, and the water is kept very strongly so that pressure is needed to take the water out. These products are used in quantities of 1-3%, and to the quenching water are added complimentary other products such as detergents, emulsifiers, adhesion promoters, and inorganic products such as carbonates, sulfates silicones etc. Quenching fires utilizes the solution containing these or a selection of these products, and the solution is thrown in the fire edges to rapidly extinguish the fires, because the water contained in the special organic products is liberated in the fire edges, where quenching immediately occurs.

Abstract: A recycling process for garbage containing a high proportion of paper where printed paper is first separated from the garbage. The garbage is then into pieces and light and heavy components are separated out in a classification tank. The remaining organic mass suspended in water is hydrolyzed and subjected to anaerobic digestion followed by aerobic co-composting. The resulting solid is a high grade fertilizer while biogas produced by the process is converted to electrical energy in a combined cycle installation.

Abstract: A method is described for protection against fire with coating and paint compositions for houses, polymer constructions, industrial installations, and transport vehicles, in which polymeric products produced by processing polystyrene and copolymers to macroreticular structure are introduced with the incorporation of ionic groups at high density, thus acquiring the potential to very strongly absorb water up to 400 times weight endomolecularly. They can be used in paint and general coating compositions as a first surface coating or can be in aqueous paint emulsions as a main coating. Inorganic materials such as lime, gypsum, silicones etc. can also be added. The products in the coating compositions when burned or decomposed in a fire edge release much water and quenches the fire immediately offering complete protection against fire.

Abstract: A method for cotton purification is described, where the cotton is subject to a purification process in water. The process solution contains calcium hydroxide and a non-ionic detergent wetting agent. Following this processing the cotton is rendered hydrophilic. The cotton is carried in a net with simultaneous removal of the adsorbed processing solution. It is then washed and bleached with H.sub.2 O.sub.2 or ClONa in a two-stage process. The effluent water is processed by anaerobic digestion in the thermophilic region for the production of biogas. The effluent water from the anaerobic digestion process is further processed by aerobic biological treatment. The whole process operates with energy self-sufficiency without resulting in environment pollution. Finally, a high purity cotton is produced with high water absorptivity which is suitable for spinning for the production of quality cotton yarns suitable for weaving quality fabrics or dyeing.

Abstract: This invention refers to an original solution for the purification of contaminated water streams with the activated sludge method, involving: a) a two-stage aeration system operating at high rate and low rate conditions respectively, where the first stage operates in anoxic conditions promoting denitration, whereas the second stage operates under oxidant conditions so that nitrates are removed to an extent of 70%; b) a system for moving the biological sludge, where the sludge produced in the first aeration tank is totally rejected, and that produced in the second aeration tank is recycled to the first.

Abstract: The invention describes a method for the economic production of ethyl alcohol involving dehydration of the alcohol in an adsorption-desorption process using ion exchange resins which have been swollen in water from about 50 to 300 times their weight.