Method for reducing concentration of SO2 in air
A concentration and air technology, applied in the field of reducing the concentration of SO2 in the air, can solve problems such as environmental pollution, and achieve the effects of low operating costs, low investment and maintenance costs, and low engineering investment.
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Embodiment 1
[0017] The concentration of sulfur dioxide in the atmosphere around a smelter ranges from 0.2 to 3 mg / m 3 about. Plant oleander and sycamore in rows around the factory area as street trees. Auxiliary watering foliar fertilizer, its main component is a liquid fertilizer composed of ammonium bicarbonate and potassium dihydrogen phosphate mixed with water, which can promote its survival, strengthen photosynthesis, and increase plant biomass by prolonging the life of leaves. Harvest the leaves that fall off naturally at any time, and harvest them at one time after the leaves fall in autumn. After analysis and determination, the range of sulfur dioxide concentration in the atmosphere is reduced to 0.1-1.3mg / m 3 , while the atmospheric sulfur dioxide concentration in the adjacent area without plants is still 0.2-2.6mg / m 3 , which is equivalent to reducing the sulfur dioxide content in the atmosphere by 50%. In addition, the sulfur content in the body of oleander and sycamore plan...
Embodiment 2
[0019] The annual average concentration of sulfur dioxide in the atmosphere around a smelter is 2mg / m 3 about. Gardenia shrubs and grasses are planted in large open spaces in and around the factory area, and oleander, sycamore and weeping willow are interspersed with each other. During the planting period, loosen and plow the substrate every half a month, and properly introduce animals such as earthworms to loosen the substrate. Followed by spraying and watering to wash the excessive dust on the surface of the leaves to increase the photosynthesis of plants and the ability to absorb sulfur dioxide. In addition, increase the aeration and water permeability of the soil, increase the redox potential of the soil, so as to promote the sulfur dioxide dust to form sulfate in the soil and move to the soil solution, and accelerate the absorption and accumulation of sulfur by plants. Sulfides will become unstable and easily oxidized, which is conducive to the uptake of sulfate by plan...
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