Regenerative coagulant, and preparation method and using method thereof
A coagulant and concrete technology, which is applied in the fields of temperature control sludge treatment, flocculation/sedimentation water/sewage treatment, dehydration/drying/concentrated sludge treatment, etc. Due to the limited landfill site and other problems, it has achieved the effect of reducing the cost of wastewater treatment, improving the utilization rate of coagulant, and making significant technological progress.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0029] Such as figure 1 Shown is a schematic diagram of the process for the preparation and recycling of the new renewable coagulant proposed by the present invention. Collect waste concrete, remove sand and gravel, crush it to a particle size of less than 25 mm, and then use an autogenous mill to grind it to a particle size of less than 2 mm, pass through a 150-mesh sieve, and calcinate at 550°C for 2 hours, and then cool , using a high-pressure roller mill to grind to obtain a particle size of less than 0.03 mm and a specific surface area of 3000-4000 cm 2 / g of powder is the coagulant.
[0030] The simulated dye wastewater with hydrophobic disperse scarlet dye at a concentration of 0.15 g / L had an initial pH of about 8.0 and an absorbance of 1.41. It was treated with the above coagulant, first stirred at a high speed (200 r / min) for 30 min, then stirred at a slow speed (100 r / min) for 5 h, and finally settled for 30 min, and the supernatant was taken to measure the abso...
Embodiment 2
[0034]Collect the discarded concrete, remove the sand and gravel, first crush it to a particle size of less than 25 mm, then use an autogenous mill to grind it to a particle size of less than 2 mm, pass through a 150-mesh sieve, and calcinate at 600 °C for 2 h, after cooling , using a high-pressure roller mill to grind to obtain a particle size of less than 0.03 mm and a specific surface area of 3000-4000 cm 2 / g of powder is the coagulant.
[0035] The simulated dye wastewater with hydrophilic reactive brilliant blue dye at a concentration of 0.14 g / L had an initial pH of about 10.4 and an absorbance of 0.76. Treat it with the above coagulant, first stir it at a high speed (200 r / min) for 30 min, then adjust it at a slow speed (100 r / min) for 5 h, and finally settle it for 30 min, and take the supernatant to measure its absorbance and pH. Gradually increasing the dosage of coagulant, the coagulation dye removal rate increased accordingly, when the dosage of coagulant reach...
Embodiment 3
[0039] Collect the discarded concrete, remove the sand and gravel, first crush it to a particle size of less than 25 mm, then use an autogenous mill to grind it to a particle size of less than 2 mm, pass through a 150-mesh sieve, and calcinate at 650 ° C for 2 h, after cooling , using a high-pressure roller mill to grind to obtain a particle size of less than 0.03mm and a specific surface area of 3000-4000 cm 2 / g of powder is the coagulant.
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| absorbance | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to view more - 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap