Abstract: The group of inventions relates to the field of organic chemistry and can be used for collecting films of petroleum, oils, mazut, fuels, hydrocarbons and other petroleum products with the aim of cleaning the surface of water, and also for cleaning water flows which have been contaminated by petroleum or petroleum products. A substance for collecting petroleum or petroleum products from the surface of water includes a natural polymer and additionally includes a biodegradable surfactant in the form of an aqueous solution with a concentration of no less than 0.1 g/L, and, as the natural polymer, contains polysaccharide microgels having a mass of between 20,000 and 200,000 daltons and a particle size of between 50 and 600 nm in the form of an aqueous solution with a concentration of no less than 0.2 g/L, wherein the ratio of polysaccharide microgels to biodegradable surfactant is between 12:1 and 2:1.

Abstract: The group of inventions relates to the field of organic chemistry and can be used for collecting films of petroleum, oils, mazut, fuels, hydrocarbons and other petroleum products with the aim of cleaning the surface of water, and also for cleaning water flows which have been contaminated by petroleum or petroleum products. A substance for collecting petroleum or petroleum products from the surface of water includes a natural polymer and additionally includes a biodegradable surfactant in the form of an aqueous solution with a concentration of no less than 0.1 g/L, and, as the natural polymer, contains polysaccharide microgels having a mass of between 20,000 and 200,000 daltons and a particle size of between 50 and 600 nm in the form of an aqueous solution with a concentration of no less than 0.2 g/L, wherein the ratio of polysaccharide microgels to biodegradable surfactant is between 12:1 and 2:1.