Tailing surface layer consolidation material based on lysinibacillus sphaericus and application thereof

Abstract

The invention belongs to the technical field of environmental protection, and particularly relates to a tailing surface layer consolidation material based on lysinibacillus sphaericus. The material comprises the following components in percentage by mass: 15-50% of metal tailing sand, 3-15% of lysinibacillus sphaericus bacterial liquid, 1-10% of urea, 3-15% of anhydrous chloride, 1-6% of potassiumalginate and the balance of water. The preparation method comprises the following steps: respectively crushing the weighed metal tailing sand, urea, anhydrous chloride and potassium alginate, sievingwith a 100-150-mesh sieve, mixing, adding the lysinibacillus sphaericus bacterial liquid and water, and uniformly mixing to obtain the tailing surface layer consolidation material. The using method comprises the steps that the tailing surface layer consolidation material is sprayed to the surface layer of the tailing pond, and 200 L of the tailing surface layer consolidation material is sprayed to the surface of every 500 m < 2 > of the tailing pond. The tailing surface layer consolidation material provided by the invention can form a stable consolidation layer on the surface layer of the tailing pond to achieve a good dust suppression effect, and the material is convenient to obtain, environment-friendly, simple in use method and low in cost.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a tailings surface consolidation material based on lysine bacillus spheroidus and its application. Background technique [0002] Our country is rich in mineral resources. In the mining of mineral resources, while people gain economic benefits, they also destroy the ecological environment of the mining area. The biggest source of pollution in the mining area is the tailings pool, and the dust pollution from the tailings pool is particularly prominent. Tailings ponds are similar to man-made deserts, generally ranging from tens of thousands of square meters to millions of square meters. Due to the lack of cohesiveness between the tailings particles, the outer slope of the tailings pond and the dry beach of the reservoir area have undergone long-term During the dry and windy season, the dust in the reservoir area is flying all over the sky, and a large a...

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Problems solved by technology

This method needs to lay a large amount of cultivated soil, which destroys the ecological environment; it is not suitable for the temporary dust prevention on the dry beach slope of the tailings pond during operation; For mines, keep the beach surface moist, increase the starting wind speed, and reduce dust flying; this method is not suitable for dust prevention on the outer slope of the accumulation dam of the tailings pond, and it cannot achieve the purpose of dust prevention for the non-drawing section; 6) Surface solidification and dust prevention This method is a tailings dust prevention method that combines physical and chemical methods. It uses active materials to mix with tailings and lay them on the surface of tailings ponds to prevent tailings from flying. It has received widespread attention in recent years; but The construction process of this method is complicated, and the cost is high when used in a large area, which limits its popularization and application.

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