Method for preparing garden matrix from sand washing sludge of opencast quarrying mine

Abstract

The invention relates to a method for preparing a garden matrix from sand washing sludge of opencast quarrying mine. The method is characterized by comprising the following steps of 1, preparing the sand washing sludge, acidic sticky red soil and organic fertilizer, and ensuring that the pH value after acid-base neutralization of the sand washing sludge and the acidic sticky red soil is 6.5-8.5; 5; 2, mixing the sand washing sludge, the acidic sticky red soil and the organic fertilizer to obtain a mixture; 3, loading the mixture into a planting bag, performing watering until saturation, and then performing placement for 12-24 hours; and 4, planting garden plants on the mixture by applying a conventional planting method, and when the garden plants can grow normally, obtaining the garden matrix. According to the method, the quality of the sand washing sludge can be improved, so that the sand washing sludge can meet the growth requirements of the garden plants,the sand washing sludge canbe reasonably utilized, and the environment is prevented from being polluted; and the method is very low in operation cost, very simple to operate and very easy to popularize and apply.

Description

technical field [0001] The invention relates to the technical field of mine sludge treatment, in particular to a method for configuring garden substrates. Background technique [0002] In order to protect the ecological environment, our country does not allow the direct collection of river sand for the construction industry, but a large number of ores are crushed and washed to form suitable fine sand. The sand washing process produces sludge with a large output and a low proportion of resource reuse. Many enterprises have encountered problems in sludge treatment and disposal. In addition, sand washing sludge has strong alkalinity, low organic nutrients, poor water and fertilizer retention capacity, etc., which is not conducive to plant growth, and direct dumping will cause environmental pollution. Contents of the invention [0003] The purpose of the present invention is to solve the above problems and deficiencies, and to provide a method of using sand washing sludge fro...

AI Technical Summary

Problems solved by technology

The sand washing process produces sludge, with a large output and a low proportion of resource reuse. Many enterprises have encountered problems in sludge treatment and disposal.

In addition, sand washing sludge has strong alkalinity, low organic nutrients, poor water and fertilizer retention capacity, etc., which is not conducive to plant growth, and direct dumping will cause environmental pollution

Images