Method for preparing phosphorus removal functional filler from biomass power plant ash residues

Abstract

The invention relates to a method for preparing a phosphorus removal functional filler by using biomass power plant ash residues, which comprises the following steps of: pouring biomass power plant ash residues into a leaching tank, uniformly scattering FeSO4 powder on the surface of the biomass power plant ash residues, continuously, uniformly and quickly leaching the biomass power plant ash residues by using water, and then airing the leached biomass power plant ash residues for later use; pouring the pretreated biomass power plant ash residues into a stirring barrel, adding limestone, cement, activated aluminum oxide and an adhesive into the stirring barrel, and uniformly stirring and mixing; baking the mixed raw materials to obtain a new mixture; hydrating and mixing the new mixture to obtain a blank body; and curing, crushing, screening, acidifying and secondarily baking the blank body, and cooling to room temperature to obtain the phosphorus removal filler. The method has the advantages that through cooperation of multiple procedures, the biomass power plant ash residues are recycled, the filler with a phosphorus removal function is prepared, and the resource utilization rate is increased.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a method for preparing a phosphorus-removing functional filler by utilizing the ash residue of a biomass power plant. Background technique [0002] For a long time, crop stalks have basically been treated as waste products. Every harvest season, in most areas, there will be a situation of "every village is lit, smoke is everywhere, straw is everywhere, and wars are everywhere", causing great harm to the ecological environment. And turning these straws into treasures can reduce these unnecessary air pollution. Straw power generation is an effective way to realize straw resource utilization. In the CDM (Clean Development Mechanism) project generally implemented by developed countries in the world, the biomass power generation unit with an installed capacity of 12MW can reduce the equivalent of about 38,500 tons of CO2 per year, which can greatly reduce the global Greenhouse gas emissio...

AI Technical Summary

Problems solved by technology

At present, the disposal of biomass power plant ash is usually directly landfilled, which leads to a waste of resources