Baking-free stephanoporate water slag filtering material and preparation method thereof

Abstract

A baking-free multiporous granulating slag filtering material is made through adopting the following steps that: treated granulating slag, cement and pore-forming agent are taken as raw materials and are mixed evenly according to a certain proportion; then, water is sprinkled to make the mixed raw materials into balls; during maintaining process, appropriate temperature, humidity and maintaining time are maintained so as to generate the filtering material. The baking-free multiporous granulating slag filtering material has a rough and multiporous surface, and is propitious to the adhesion andthe growth of microorganism in a biological filter; meanwhile, the filtering material has ideal adsorbability and excellent effect when used as a filler of an aeration biological filter during sewagetreatment. Moreover, the baking-free multiporous granulating slag filtering material and a preparation method thereof do not need to adopt sintering process and do not consume energy resources such as coal and electric powder, thereby according with the current state environmental protection policy for energy conservation and discharge reduction.

Description

Burn-free porous water residue filter material and preparation method thereof Technical field The invention relates to a biological filter filter material, in particular to a non-burning porous water residue filter material and a manufacturing method thereof. Background technique At present, the filter material of biological filter used in water treatment is mainly ceramsite filter material, which is produced by sintering process with clay as the main raw material. It consumes a lot of energy and has high production costs. Moreover, the traditional ceramsite filter material used in the biological aerated filter has the defects of large water flow resistance, low porosity, easy clogging, poor strength, easy breakage, and water erosion resistance, and the water treatment effect is poor. Summary of the invention Aiming at the shortcomings of the prior art, the present invention provides a burn-free porous water residue filter material and a manufacturing method thereof. A non-b...

AI Technical Summary

Problems solved by technology

At present, the filter material of biofilter used for water treatment is mainly ceramsite filter material. The ceramsite filter material is produced by sintering process with clay as the main raw material. It consumes a lot of energy and the production cost is high.

Moreover, the traditional ceramsite filter material used in the biological aerated filter has defects such as large water flow resistance, small porosity, easy clogging, poor strength, easy breakage, and not resistant to water erosion, and the water treatment effect is poor.