Aerobic biological membrane material, preparation method and application of aerobic biological membrane material in sewage treatment technology
An aerobic biological and membrane material technology, applied in biological water/sewage treatment, sustainable biological treatment, water/sludge/sewage treatment, etc. Problems such as slow film hanging speed, to achieve the effect of good microbial adhesion, accelerated film hanging speed, and fast film hanging speed
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0035] In a specific implementation scenario, the preparation method of an aerobic biofilm, the specific steps are as follows:
[0036] 1) Reinforcing material preparation: Add 10-50 parts by weight and a concentration of 8-15wt% sodium periodate solution to 5-15 parts by weight of sodium alginate at a rate of 5-8mL / min, and then 200-350r / min speed stirring reaction for 16-24h, then add 5-10 parts by weight of ethylene glycol to the reaction system to terminate the reaction, after 0.5-1h, send it into the freeze dryer. Freeze-dry at -20°C for 30-60 minutes, then grind the dried white product to obtain oxidized sodium alginate powder;
[0037] 2) Preparation of flexible polyurethane foam: 20-30 parts by weight of vinyl polyether polyol, 80-200 parts by weight of polyether polyol, 5-10 parts by weight of silicone oil, 0.5-3 parts by weight of catalyst, 1-30 parts by weight of oxidation Add sodium alginate powder and 0.01-0.35 parts by weight of sulfasuccinic acid into the react...
Embodiment 1
[0049] The preparation method of aerobic biofilm material, concrete steps are as follows:
[0050] 1) Preparation of reinforcing material: Add 36 parts by weight of sodium periodate solution with a concentration of 12.5wt% to 12 parts by weight of sodium alginate at a rate of 7.5mL / min. Stir the reaction at a high speed for 18 hours, then add 10 parts by weight of ethylene glycol to the reaction system to terminate the reaction, put it into a freeze dryer after 0.5 hours, and freeze dry it at -30°C for 45 minutes, and then dry the obtained white The product is ground to obtain oxidized sodium alginate powder;
[0051] 2) Prepare polyurethane flexible foam: 25 parts by weight of vinyl polyoxypropylene polyol, 135 parts by weight of ethylene glycol polyether polyol, 10 parts by weight of silicone oil, 1 part by weight of dibutyltin dilaurate, 1 part by weight of triethylene glycol Base diamine, 15 parts by weight of oxidized sodium alginate powder and 0.25 parts by weight of su...
Embodiment 2
[0055] The preparation method of the aerobic biofilm material, when working, only differs from Example 1 in that: step 3) the reticulation solution used for reticulation treatment is composed as follows: 45wt% NaOH aqueous solution, isopropanol, propylene glycol, di Ethyl pyrophosphamide and fluorenyl moxycarbonyl-lysine are obtained by mixing in a weight ratio of 5.5:3.5:1:0.65:0.25.
PUM
Property | Measurement | Unit |
---|---|---|
diameter | aaaaa | aaaaa |
particle diameter | aaaaa | aaaaa |
diameter | aaaaa | aaaaa |
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