Device for restoration of persistent organic pollutant-polluted soil and use method thereof

Abstract

The invention relates to the technical field of mechanical-chemical process-based harmless treatment on persistent organic pollutants and provides a device for restoration of persistent organic pollutant-polluted soil and a use method thereof. The device comprises a motor, a belt transmission device, a transmission gear set, a horizontal ball milling roller and a roller support. The use method comprises the following steps of adding polluted soil, an additive and grinding balls into the horizontal ball milling roller together, and after the polluted soil in the horizontal ball milling roller is subjected to pollutant-polluted soil restoration, and pouring the polluted soil, the additive and the grinding balls from the horizontal ball milling roller. At a rotation rate less than a critical rotation rate, the device greatly saves energy consumption, can be simply and reliably operated and can continuously work in dozens of hours. The device has a simple system, less initial investment, simple processes, less wearing and a low maintenance cost and is especially suitable for restoration of soil in the developing countries and the remote areas.

Description

technical field [0001] The invention relates to the technical field of mechanochemical harmless disposal of persistent organic pollutants, in particular to a device for repairing persistent organic pollutant-contaminated soil and a method for using the same. Background technique [0002] In the past three decades, my country's solid waste dismantling industry has developed rapidly, and as many as 70% of the world's electronic waste has been transported to China for dismantling. The solid waste dismantling industry is actually an industry of electronic solid waste recycling. Through the dismantling of electronic solid waste, usable old products can be obtained and precious metals can be recovered. However, because the components of electronic products are complex and contain many toxic substances, improper handling and disposal can easily cause environmental pollution. my country's solid waste dismantling enterprises generally have shortcomings such as simple production equi...

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