Vanadium-polluted soil improver and preparation method thereof

Abstract

The invention discloses a vanadium-polluted soil improver which comprises the following raw materials in parts by weight: 25-60 parts of urea, 10-15 parts of potassium bicarbonate, 5-11 parts of aluminum glycinate, 4-10 parts of nicotinamide, 4-8 parts of plant ash, 5-9 parts of malt powder, 4-11 parts of chicken feather powder, 2-5 parts of coco coir, 4-7 parts of straw biomass coal, 2-5 parts ofglycine betaine, 1-3 parts of sodium humate, 1-3 parts of chitosan and 3-8 parts of modified excrement. By adopting the vanadium-polluted soil improver disclosed by the invention, the water content of soil can be effectively improved, the soil pH value can be increased, the cation exchange capacity of soil is increased, the germination rate of spring wheat is increased, the plant height of the spring wheat is increased, and the survival rate of the spring wheat is increased; the vanadium-polluted soil improver is simple in preparation method, beneficial to industrial production and agricultural popularization and application and relatively high in social value.

Description

technical field [0001] The invention relates to a soil conditioner, in particular to a vanadium-contaminated soil conditioner and a preparation method thereof. Background technique [0002] Vanadium is an element widely distributed in the earth's crust. It is widely used in metallurgy, national defense, chemical industry, machinery, electronics, automobile, shipbuilding and light industry and other industrial fields. The sources of vanadium in the environment can be divided into natural sources and anthropogenic sources. Natural sources include the weathering of natural rocks, and man-made sources are mainly the mining of ores and the burning of fuels such as petroleum. According to my country's current toxicity classification method (LD50), vanadium is classified as medium-high toxicity. [0003] At present, there are many studies on the improvement technology of soil contaminated by cadmium, lead and arsenic, but there are few improvement technologies for soil contaminat...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many studies on the improvement technology of soil contaminated by cadmium, lead and arsenic, but there are few improvement technologies for soil contaminated by vanadium.

Although there are some remediation methods for vanadium-contaminated soil in the prior art, each has inevitable shortcomings, and cannot simultaneously improve various soil properties such as soil water storage capacity, soil fertility, and cation exchange capacity.