Active soil for purifying high concentration polluted air in tunnels or other local areas

Abstract

The invention discloses an active soil for purifying high concentration polluted air in tunnels or other local areas. The active soil contains microorganisms used for decomposing harmful gas in tail gas and is characterized by also including topsoil, perlite, pumice, turf, muck and artificial zeolite, wherein the volume ratio of topsoil to perlite to pumice to turf to muck is 4:2:1:1:1. The soil formula can solve the contradiction between the growth and reproduction of microorganisms and the physicochemical property of soil and ensure the activity of microorganisms in soil. The proportioning of ingredients causes the soil to have good air permeability, and the polluted gas can be evenly distributed in soil, thus further ensuring the utilization rate of the polluted gas by microorganisms. With higher purification efficiency of the polluted gas, the active soil saves use cost and can eliminate or abate the pollution to the atmosphere by high concentration vehicle tail gas in tunnels to the maximum degree.

Description

technical field [0001] The invention relates to an environment-friendly material for purifying air, in particular to an active soil for purifying high-concentration polluted air in local areas such as tunnels. Background technique [0002] Motor vehicle exhaust pollution is a hot issue of concern in the world today, especially in tunnels, underpasses, underground parking lots, along urban roads, toll stations and other places where vehicles are concentrated and in confined spaces. Motor vehicle exhaust is not easy to spread. , It increases the pollution of the atmosphere and seriously affects the survival and health of the human body and other organisms. In order to solve or reduce the air pollution caused by motor vehicle exhaust, forced mechanical ventilation is usually used in tunnels, underpasses, and indoor parking lots to reduce local high-concentration pollution, but harmful gases are still discharged into the atmosphere, causing air pollution. And it didn't lessen. ...

AI Technical Summary

Problems solved by technology

The existing active soil material components cannot achieve the comprehensive purpose of efficient microbial reproduction and efficient use of pollutants by microorganisms

Absorbing tail gas has certain requirements on the physical and chemical properties of the soil, which are determined by the composition of the soil. The existing technology cannot solve the contradiction between soil composition, structure and microbial reproduction; if the utilization efficiency of microorganisms in the soil to pollutants is improved, then The use period of the soil is short, and vice versa; and the gas cannot be evenly distributed after entering the soil, resulting in low microbial utilization and increasing the cost of use