FIELD: pulp-and-paper industry. SUBSTANCE: method involves providing finely dispersed suspension of cellulose filaments; adding water-soluble polymeric binder and water-soluble cation substances selected from the group comprising water-soluble organic polymeric coagulants with viscosity not in the excess of 3 dl/g and inorganic coagulants. EFFECT: improved flocculation of suspension and dehydration rate, increased retention of filaments and small particles. 9 cl, 4 tbl, 2 ex
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