Landfill leachate discharge treatment device and treatment method
A landfill leachate and treatment device technology, which is applied in the direction of contaminated groundwater/leachate treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of high operating costs, unstable operation of facilities, and large investment in evaporation systems, etc. problems, achieve stable operation, solve refractory humic acid and salt accumulation, and achieve low investment and operation costs
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 2
[0044] Such as figure 2 As shown, a kind of treatment method that uses the treatment device of embodiment 1 provided in this specific embodiment to discharge landfill leachate, comprises the following steps:
[0045] Step S1: The leachate stays in the water quality balance pool 1 for two days, and methanol is added to the water quality balance pool 1 through the carbon source dosing device 10, and the COD of the leachate stock solution is measured every day Cr Concentration, calculate the amount of methanol that needs to be added to ensure the COD of the leachate after adjustment Cr :NH 4 + -N≈6.5:1, a submersible mixer is installed in the water quality balance pool 1 to fully mix the carbon source and raw water;
[0046] Step S2: The leachate in the water quality balance pool 1 enters the two-stage nitrification and denitrification pool 2 after the carbon-to-nitrogen ratio is adjusted, and in the first-stage denitrification pool, the first-stage nitrification pool, the se...
Embodiment 3
[0051] The leachate of a certain landfill is processed by the treatment method of the landfill leachate discharge of Embodiment 2, and the leachate water quality COD of the landfill is Cr , ammonia nitrogen, TN and SS concentrations are 8000-15000mg / L, 2000-3000mg / L, 2200-3200mg / L and 1000-1500mg / L respectively. 90mg / L, 25mg / L, 40mg / L and 30mg / L, there is no requirement for TDS and chloride ion concentration.
[0052] After the leachate of the landfill is treated by the treatment method of the landfill leachate discharge in Example 2, the COD of the produced water of the secondary nanofiltration device 5 Cr , ammonia nitrogen and TN reached 50-80mg / L, 0.1-5mg / L and 7-33mg / L respectively, and the COD of the produced water of the three-stage membrane concentrate unit Cr , ammonia nitrogen and TN are 65~90mg / L, 0.7~7mg / L and 16~34mg / L respectively, all of which meet the emission standards.
PUM
Property | Measurement | Unit |
---|---|---|
recovery rate | 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