Method for preparing modified focculant from organic wastewater by diatomite
A technology of organic waste water and diatomite, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sewage treatment, etc., can solve problems such as high water treatment costs, environmental hazards, and secret discharge of sewage by enterprises , to achieve the effect of small environmental impact, energy saving and large floc
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] A method for preparing organic wastewater modified flocculants with diatomite, specifically comprising the following steps:
[0021] (1) Preparation of polyaluminum iron silicate with diatomaceous earth: extracting SiO from diatomaceous earth 2 , the optimal process conditions are: m diatomite: m sodium carbonate ratio of 1:1.1, calcination temperature of 750 ℃, calcination time of 1.8 h, acid leaching with 3.0 mol / L hydrochloric acid; sol-gel water bath temperature of 94 ℃ , SiO 2 The yield is about 84%; with the extracted SiO 2 Preparation of water glass, both dry and wet; dilute the water glass with distilled water to SiO 2 The content is 3%, acidified with 20% sulfuric acid to adjust the pH to 6 for polymerization, and then add aluminum sulfate (Al 2 (SO 4 ) and iron sulfate (Fe 2 (SO 4 ) to make polyaluminum iron silicate, and then adjust the pH to 2, where n(Al):n(Fe):n(Si)=5:2:1.
[0022] (2) Preparation of CMS: Add 6g of soluble starch and 10mL of ethanol...
Embodiment 2
[0026] A method for preparing organic wastewater modified flocculants with diatomite, specifically comprising the following steps:
[0027] (1) Preparation of polyaluminum iron silicate with diatomaceous earth: extracting SiO from diatomaceous earth 2 , with extracted SiO 2 Water glass is prepared, water glass is diluted with distilled water and then added aluminum sulfate and ferric sulfate to make polyaluminum iron silicate, the specific conditions are the same as in Example 1.
[0028] (2) Preparation of CMS: Add 9g of soluble starch and 15mL of ethanol into a 250mL beaker, put it into a constant temperature heating magnetic stirring water bath, stir fully and heat to 35°C, then add 3g of NaOH solid, continue stirring for 45min, then Add 12.5ml of isopropanol solution dissolved with 7.25g of monochloroacetic acid and 3g of NaOH solid, raise the temperature to 60°C, react fully for 110min, neutralize to neutral with acetic acid solution, filter and wash with 80% ethanol sol...
Embodiment 3
[0032] A method for preparing organic wastewater modified flocculants with diatomite, specifically comprising the following steps:
[0033] (1) Preparation of polyaluminum iron silicate with diatomaceous earth: extracting SiO from diatomaceous earth 2 , with extracted SiO 2 Water glass is prepared, water glass is diluted with distilled water and then added aluminum sulfate and ferric sulfate to make polyaluminum iron silicate, the specific conditions are the same as in Example 1.
[0034] (2) Preparation of CMS: Add 12g of soluble starch and 20mL of ethanol into a 250mL beaker, put it into a constant temperature heating magnetic stirring water bath, stir fully and heat to 40°C, then add 3.5g of NaOH solid, continue stirring for 50min, Add 15ml of isopropanol solution dissolved with 7.5g of monochloroacetic acid and 3.5g of NaOH solid in turn, raise the temperature to 65°C, react fully for 120min, neutralize to neutral with acetic acid solution, filter and use 80% ethanol solu...
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