Iron tailing soil formation method

Abstract

The invention relates to an iron tailing soil formation method. The method is characterized by comprising the following steps: (1) a tailing is leveled: a tailing site is leveled; (2) a ditch is arranged for drainage; (3) additive adding and tillage are carried out: a water retaining agent and an amendment are added below the surface of the iron tailing, and tillage is carried out; (4) a microbialagent is applied: the microbial agent is sprayed; (5) a plant is planted or cultivated; and (6) irrigation and maintenance are carried out: soil moisture is kept, a straw mat is laid for herbaceous plants, and effects of high temperature are alleviated. The construction method is simple, the price is reasonable, the greening effects are quick, the method is in line with local conditions, the application range is wide, the construction is easy, resources are saved, the greening effects are good, the tree survival rate can reach 90 to 95%, the survival rate of the herbaceous plants can reach 95to 98%, and the method can be applied to tailing soil formation greening projects in different areas, and has strong popularization and application.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a method for turning iron tailings into soil. Background technique [0002] The rapid development of my country's iron and steel industry has led to the rapid development of the iron ore mining and dressing industry. my country's iron ore resources are large and widely distributed, but lean iron ore is the main resource, accounting for more than 97% of the total iron ore resources, resulting in large tailings emissions. Restricted by the large-scale utilization technology of iron ore, the current iron tailings are mainly stockpiled by dams. According to statistics, the domestic iron tailing stockpiles have exceeded 8 billion tons, and the stockpiling continues to rise. Iron tailing stockpiles are not only It causes air pollution, endangers surface water, groundwater and soil environment, and has ecological risks such as dam collapse. It has become a ...

AI Technical Summary

Problems solved by technology

The patent application number is 201610669420.8 "A kind of lead-zinc tailings planting soil and its preparation method", which combines lead-zinc tailings, non-polluted soil, peat soil, vermiculite, perlite, medical stone, decomposed organic fertilizer and humic acid according to A certain proportion is mixed to make planting soil, but the tailings content is only 20% to 30%, the utilization rate is low, and the cost is high