Production method of compressed nutrient soil from sepiolite tailings

Abstract

The invention discloses a production method of sepiolite tailing compressed nutrient soil. According to the key points of the technical scheme, the production method is characterized by comprising the following steps: firstly performing acidification treatment and natural fermentation on sludge; then performing stirring, compression and microwave low-temperature sterilization on accessory materials of the sepiolite tailing compressed nutrient soil, and packaging to obtain a finished product. The sepiolite tailing compressed nutrient soil consists of materials such as acidified sepiolite tailings, acidified sludge, instantly-dissolved sodium silicate, ferrous sulfate, turf, flower ceramsite, high-viscosity attapulgite clay, biogas slurry, crushed plant fiber, expanded vermiculite, expanded perlite and high water-absorption resin. The sepiolite tailing compressed nutrient soil contains a great number of nitrogen, phosphorus, potassium and organic matters and various micro elements, can be used for providing nutrient elements necessary for the growth of plants and reducing harms of pathogenic bacteria and pests to the plants, is beneficial to the normal growth and development of the plants, and can be used for protecting the ecological environment; the production method of the sepiolite tailing compressed nutrient soil is suitable for producing sepiolite tailing compressed nutrient soils based on different formulae.

Description

technical field [0001] The invention relates to nutrient soil, in particular to a production method of sepiolite tailings compressed nutrient soil. Background technique [0002] Sepiolite clay is a kind of clay with sepiolite as the main component, accompanied by attapulgite, montmorillonite, talc, etc., and non-clay minerals mixed with quartz, calcite, lapis lazuli, etc. [0003] There are a large number of sepiolite tailings in the sepiolite mining area, which have not been well developed and utilized. [0004] Sludge is a kind of easily corrupt and smelly paste produced in the process of sewage treatment. It enriches the pollutants in sewage, contains a large amount of nutrients such as nitrogen and phosphorus, organic matter, virus microorganisms, parasite eggs, heavy metals, etc. Toxic and harmful substances will cause serious harm to the environment if they are not effectively treated and disposed of. [0005] The water content of the sludge produced by the urban sew...

AI Technical Summary

Problems solved by technology

Generally, it is prepared by mixing fertile field soil and decomposed manure. There are also nutrient soils selected from imported high-quality peat and coconut bran mixed in a specific proportion. However, these nutrient soils have not undergone reasonable ingredients and strict disinfection. Conducive to the normal growth and development of seedlings

[0009] Because the treated nutrient soil is relatively light and loose, the conventional product of nutrient soil is relatively large, which is not conducive to reducing the cost of production and transportation