The best method of waste management is waste incineration and power generation, but waste incineration produces residual pollutants, and waste leachate is a significant issue that needs to be resolved.
A landfill's garbage contains organic wastewater with a high concentration that is known as landfill leachate. This is typically the consequence of rainwater getting into the landfill, but it can also be attributed to the organic material's natural decomposition, as well as other liquids and chemicals that have been thrown there.
Let’s review the treatment method of leachate treatment in this blog.
Municipal waste is typically treated by burning, however, as there is more rubbish, there is also more landfill leachate produced by garbage combustion.
Additionally, the landfill leachate contains dangerous contaminants like oil and heavy metals that have a significant negative impact on the ecosystem. If discharged directly, it will contaminate the air and nearby water supplies, harm local production, and endanger public health. As a result, we must deal with landfill leachate. The re-injection method, reverse osmosis method, and biochemical treatment method, are the most often utilized treatment technologies.
How is leachate from landfills treated?
· Re-injection technique
Measure the heat and the amount of leachate produced before deciding whether to utilize this treatment procedure. When there is a high production but less heat, this method is ineffective.
You can use the re-injection approach to speed up combustion, and lower the amount of hazardous compounds in landfill leachate that contains more dry matter. Re-burning must be evaluated in light of the leachate's calorific value, and sprayed with a high-pressure device.
Leachate will stop spraying and continue to build up in the concentration tank, when its heat content falls below the combustion standard. Spraying might be done to guarantee treatment effectiveness once the concentration heat, and other requirements have been reached once more.
· Reverse osmosis
When treating burned landfill leachate with a high salt concentration, reverse osmosis is frequently utilized.
After incineration, control the leachate inside the prescribed area to prevent soil infiltration from increasing the pollution impact. Reverse osmosis is mostly used to extract suspended contaminants, raise leachate concentrations, and then achieve greater leachate concentrations.
Reverse osmosis is typically used in conjunction with other techniques that re-burn the high-concentration liquid, produced as a result to reduce the amount of hazardous substances.
· Biochemical method of treatment
MBR technology is currently the most used biochemical treatment. It is a brand-new, very effective method of treating wastewater that blends complete activated sludge technology, with high-efficiency membrane separation technology. Its key benefits include:
1. The separation device is straightforward, simple to use, and practical for maintenance management.
2. The hollow fibre membrane has a long service life, reduces pollution and membrane fouling.
3. The MBR membrane uses less energy and does not experience phase change throughout the treatment process.
4. Because of its tiny size, excellent dependability, and high separation efficiency, it may frequently start and stop working, which is highly adaptable.
The landfill leachate treatment methods also include catalytic oxidation, moist oxidation, electro-oxidation, photo-oxidation, etc., in addition to the aforementioned treatment methods. These oxidation techniques can't be widely employed in the treatment of landfill leachate, because they can either be poisoned by the catalyst or require a lot of electricity.
How can we assist?
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All kinds of chemical, physical, and biological impurities can be effectively eliminated, by our water and wastewater treatment systems. For further information or to make a purchase, contact us at +91-9650608473 or drop a mail at email@example.com