Short-cut nitrification granular sludge applied to high-salt and high-ammonia-nitrogen wastewater treatment and culture method
A technology of short-range nitrification and cultivation method, which is applied in the field of short-range nitrification granular sludge, to achieve the effect of shortening the start-up time, shortening the time, and enriching the population structure
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0039] Example 1. Treatment of landfill leachate with short-range nitrification granular sludge
[0040] The short-path nitrification granular sludge was used to treat the landfill leachate, and the reactor was operated at room temperature to investigate the rate of ammonia oxidation in the reactor, the stability of the short-path nitrification and the nitrite accumulation rate of the nitrite granular sludge reactor.
[0041] In this example, the concentration of inoculated granular sludge in the reactor was 4.2 g MLSS / L.
[0042] The granular sludge reactor was operated in a sequence batch mode with a volume exchange ratio of 50%, and each cycle included 5 min of water inflow, 6h of aeration, 5min of sedimentation and 5min of effluent.
[0043] Table 2 Water quality of landfill leachate
[0044]
[0045] The domestication is achieved by properly diluting the wastewater, which are 4 times dilution (stage I, 1~13d), 3 times dilution (stage II, 14~23d) and 2 times dilution (...
Embodiment 2
[0048] Example 2. Treatment of flue gas desulfurization wastewater by using short-range nitrification granular activated sludge
[0049] The flue gas desulfurization wastewater was treated with the short-path nitrification granular activated sludge cultivated in Example 1, and the reactor was inoculated with a granular sludge concentration of 4 g MLSS / L.
[0050] The reactor was run in batch experiment to investigate the short-range nitrification effect of short-range nitrification granular activated sludge in the treatment of desulfurization wastewater.
[0051] Table 3 Desulfurization wastewater quality
[0052]
[0053] Air is supplied by sintering aeration stones at high temperature, and pH is controlled at 7-8 by adding sodium bicarbonate.
[0054] like Figure 7 After a brief adaptation of the sludge shown, the complete degradation of ammonia nitrogen was achieved at 36h. The effluent nitrite was 1008.71±0.46mg / L, nitrate was 17.12±2.11mg / L, the nitrite accumulation...
PUM
Property | Measurement | Unit |
---|---|---|
diameter | aaaaa | aaaaa |
particle size | aaaaa | aaaaa |
particle size | 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