FIELD: chemical technology. SUBSTANCE: invention proposes composite for water treatment comprising sodium bisulfate and 2-hydroxy-1,2,3-propane dicarboxylic acid and sodium citrate additionally in the following ratio of components, wt.-%: sodium bisulfate, 95-97; 2-hydroxy-1,2,3-propane dicarboxylic acid, 1.5-2.5; sodium citrate, 1.5-2.5. Composition provides the prolonged effect and maintains pH value of treated water in the range 7.2-7.5. Invention ensures to carry out treatment of water both in opened reservoirs and in closed ones for acidity neutralization pr for decrease of pH value level. EFFECT: improved properties of composite. 2 ex
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