2results about How to "Adjust porosity" patented technology

This invention discloses a method for the biological drying of sludge, comprising the following steps: baking biomass materials, mixing the resulting baked product with sludge, biochar materials, and a conditioner for biological drying, thereby completing the sludge drying process. In this invention, by biologically drying the mixture of baked product, sludge, biochar materials, and conditioner, not only can the self-generated heat within the system be used to effectively dewater the sludge in a very short time, but the bioavailability of the microbial carbon source can also be improved, effectively reducing the generation of polluting gases. This method can effectively reduce the emission of polluting gases while achieving rapid dewatering. It has advantages such as simple process, low treatment cost, low energy consumption, high drying efficiency, good dewatering effect, low polluting gas production, and low content of toxic and harmful components in the dried product. It can solve the problems of biomass resource waste and pollution, achieve sludge reduction and resource utilization, and has high returns and good application prospects.

The present application relates to a kind of industrial silicon composite reducing agent prepared with fruit skin humus, and belongs to the technical field of composite reducing agent for industrial silicon smelting.The fruit skin is cut into fruit skin particles, water is added to cover the fruit skin particles, then yeast powder is added and sealed for fermentation to obtain fruit skin humus;non-caking coal powder, fruit skin humus, starch, wood powder and microsilica powder are mixed and then ground to clump to obtain a mixture;the mixture is pressed to form a cylindrical pellet embryo;the cylindrical pellet embryo is placed in an argon environment and subjected to microwave calcination, and then cooled to room temperature in the furnace to obtain an industrial silicon composite reducing agent pellet.The industrial silicon composite reducing agent pellet has a strength of 10-14 MPa, a calorific value of 7200-8000 calories / gram, and a caking index of 49-72, which meets the preparation requirements of industrial silicon pellet reducing agent.