Method for preparing coagulant and application thereof
A coagulant and gel technology, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of secondary pollution and high treatment cost, and achieve reduction The effect of energy consumption
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026] Embodiment 1: a kind of preparation method of coagulant, comprises the steps:
[0027] (1) Accurately weigh aluminum hydroxide and sodium hydroxide at a mass ratio of 1.8:1 and place it in a reaction vessel; add a small amount of water to control the mass concentration of the sodium hydroxide solution to 50%; The temperature of the system was raised to slightly boiling; the complete reaction required 30 min;
[0028] (2) After the reaction solution in step (1) is cooled to room temperature, quickly add hydrochloric acid solution with a volume concentration of 19%, control the basicity of the reaction solution to 2.4, and stir rapidly to obtain a gel containing active aluminum hydroxide The mixed solution of polyaluminum chloride with high salinity;
[0029] (3) After the aluminum hydroxide gel-polyaluminum chloride mixed solution obtained in step (2) is mixed evenly, heat at 80°C for 0.5 hour; and age for three days to obtain a stable coagulant product.
Embodiment 2
[0030] Embodiment 2: a kind of preparation method of coagulant comprises the steps:
[0031] (1) Accurately weigh aluminum hydroxide and sodium hydroxide at a mass ratio of 1.5:1 and place them in the reaction vessel; add a small amount of water to control the mass concentration of the sodium hydroxide solution to 60%; The temperature of the system was raised to slightly boiling; it took 25 min for complete reaction;
[0032] (2) After the reaction solution in step (1) is cooled to room temperature, quickly add hydrochloric acid solution with a volume concentration of 28%, control the basicity of the reaction solution to 2.7, and stir rapidly to obtain a gel containing active aluminum hydroxide The mixed solution of polyaluminum chloride with high salinity;
[0033] (3) After the aluminum hydroxide gel-polyaluminum chloride mixed solution obtained in step (2) is mixed evenly, heat at 60°C for 0.5 hour; and age for three days to obtain a stable coagulant product.
Embodiment 3
[0034] Embodiment 3: a kind of preparation method of coagulant, comprises the steps:
[0035] (1) Accurately weigh aluminum hydroxide and sodium hydroxide at a mass ratio of 1.8:1 and place it in the reaction vessel; add a small amount of water to control the mass concentration of the sodium hydroxide solution to 60%; The temperature of the system was raised to slightly boiling; it took 25 min for complete reaction;
[0036] (2) After the reaction solution in step (1) is cooled to room temperature, quickly add hydrochloric acid solution with a volume concentration of 19%, control the basicity of the reaction solution to 2.4, and stir rapidly to obtain a gel containing active aluminum hydroxide The mixed solution of polyaluminum chloride with high salinity;
[0037] (3) After the aluminum hydroxide gel-polyaluminum chloride mixed solution obtained in step (2) is mixed evenly, heat at 80°C for 1 hour; and age for three days to obtain a stable coagulant product.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com