High-effective composite flocculant for treating low-turbidity water and preparation method of high-effective composite flocculant
A composite flocculant and low turbidity technology, which is applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of harsh reaction conditions, complicated preparation process, and prone to gelation, etc., and achieve stable and easy-to-control reaction conditions, Good response and good stability
Active Publication Date: 2012-06-20
江门市志升环保科技有限公司
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Abstract
The invention discloses a high-effective composite flocculant for treating low-turbidity water and a preparation method of the high-effective composite flocculant. The raw materials of the high-effective composite flocculant comprise sodium aluminate, a sodium silicate solution, an aluminum sulfate solution and the like. The preparation method comprises three steps including preparation of a stable sodium aluminate solution, preparation of a polysilicate solution with a low polymerization degree and a polymeric reaction. According to the preparation method disclosed by the invention, when silicic acid is activated, due to the combination of weak acid with strong acid ammonium salt, the polymerization speed of self polymerization of the silictic acid is effectively controlled and stable polysilicate with the low polymerization degree is prepared; and in the subsequent polymeric reaction, the bonding of aluminum with silicon is facilitated, the effective smooth operation of the polymeric reaction is ensured and the obtained inorganic polymer composite flocculant is favorable in stability and low in consumption; and flocculating constituent particles are quick in settling and favorable in reaction effect.
Application Domain
Water/sewage treatment by flocculation/precipitation
Technology Topic
Sodium silicateAluminium salts +8
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