Slag treatment after water glass production
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We use the ash from the biomass power plant to burn rice husk (because it contains more than 86% silica) and caustic soda to make sodium silicate. The filtered slag contains about 50% silica and 50% carbon. We planned to recycle the activated carbon, but it is not cost-effective. It must be burned back and occupy an area to dry. Do you have any good treatment methods? Welcome to give us advice!
Whether the filtration device uses a leaf filter, it needs to be flushed. After reducing the alkalinity, the slag should be sent to the cement company.
1 Send it to cement companies 2 Try to use it as a building material, such as hollow bricks 3 Add some additives and press it into plates 4 This waste should have a very low density. Try to develop some lightweight and environmentally friendly materials. Take a closer look at the surroundings. The carbon in it should be very promising. Check the shape with an electron microscope to see if it is in the nanometer range. There are nanocarbon materials in the flue ash. 5 Directly develop it into adsorption materials.
We use a plate and frame filter with a large washing volume, so the alkalinity is low. Thank you for your suggestions, I will consider them.
What a good thing! Active materials! After flocculation and sedimentation treatment, the resulting sludge is filtered, dried, and crushed to become active material.
Flocculation and sedimentation, centrifugal filtration are more cost-effective.