Acidity soil conditioner containing fire coal flue gas desulfurization solid waste material

Abstract

The present invention is one kind of acid soil amendment, which consists of coal burning fume desulfurizing solid waste in 83-97 wt% and humic acid in 3-17 wt%. The coal burning fume desulfurizing solid waste is formed through desulfurizing coal burning fume with lime suspension absorbing SO2. The acid soil amendment can complex or chelate Fe, Al and Mn elements of acid soil to regulate local concentration of active Fe, Al and Mn, raise the effectiveness and nourishing function of Ca, Mg, S, Si and B and raise activity of P, so as to raise the biomass and yield of crop and other plant and lower the content of nitrate in vegetable. The present invention utilizes coal burning fume desulfurizing solid waste effectively in agriculture.

Description

technical field [0001] The invention relates to a soil conditioner, in particular to an acidic soil conditioner containing coal-fired flue gas desulfurization solid waste. Background technique [0002] Environmental and resource issues are major issues facing contemporary mankind. The environmental pollution caused by the huge amount and variety of solid waste produced by the modern industry with highly developed productivity and the social problems caused by it have aroused widespread concern. China is a big country with coal as the main energy source. The pollution caused by burning coal has restricted the sustainable development of our national economy and society. 90% of SO 2 Emissions come from coal combustion. [0003] Current control of coal-fired SO 2 Pollution technologies can be divided into four categories, namely, desulfurization before coal combustion, desulfurization during coal combustion, flue gas desulfurization after coal combustion, and desulfurization ...

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Problems solved by technology

[0004] Over the years, my country has conducted sufficient research on the properties, components, soil improvement effects, and production-increasing mechanisms of fly ash. However, agricultural fly ash is mostly applied directly, and the amount of application is large, which is difficult to promote. Therefore, the current national fly ash The agricultural area is only about 50,000 mu

With flue gas desulfurization technology, the desulfurization solid waste has certain differences in physical and chemical properties from traditional fly ash, so this waste cannot be used in the usual way.

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