Constructed wetland device with Acorus calamus L. vegetations

Abstract

The invention discloses a constructed wetland device with Acorus calamus L. vegetations. The constructed wetland device comprises a water inlet area, a filling area and a water outlet area, a water inlet baffle is arranged between the water inlet area and the filling area, a water outlet baffle is arranged between the filling area and the water outlet area, and the filling area is disposed between the water inlet baffle and the water outlet baffle. Both the water inlet baffle and the water outlet baffle adopt a triangular weir overflow mode, the water inlet area is provided with a water inlet, the filling area is filled with filler including upper-layer filler and lower-layer filler which are equal in thickness, a middle baffle is arranged in the middle of the upper-layer filler, Acorus calamus L. is planted on the upper-layer filler at a planting interval of 5+ / -0.1 cm, and the water outlet area is provided with a water outlet. Quartz sand serves as the upper-layer filler, and the lower-layer filler is accumulated by gravels with the average particle size being 2 cm. The constructed wetland device with the Acorus calamus L. vegetations has the advantages of simple structure, low cost, low energy consumption, good treatment effect and capability of treating a polluted water body with excessive low-concentration manganese in particular.

Description

technical field [0001] The invention belongs to the technical field of treatment of polluted water bodies, and particularly relates to a constructed wetland device using calamus as vegetation. The constructed wetland device can be used to treat manganese-polluted water bodies. Specifically, the planted calamus is used to adsorb manganese ions in sewage, Absorbed, and continuously enriched in plants, so as to achieve the purification effect. Background technique [0002] In the iron and steel industry, manganese is mainly used for desulfurization and deoxidation of steel, alloy additives and stainless steel electrodes, etc. At the same time, manganese dioxide is also used as a depolarizer for dry batteries. In addition, in the production of glass colorants, dyes, paints, pigments, pesticides, etc., manganese and its compounds are also used as raw materials. Factories producing the above products, as well as manganese mining sites and smelters, are the main sources of mangane...

AI Technical Summary

Problems solved by technology

Although there are many treatment methods for manganese-containing wastewater, there are disadvantages such as high treatment cost, secondary pollution, and immature technology.

Moreover, the above methods are generally used for the treatment of high-concentration manganese ion wastewater. For the treatment of large-area, low-concentration manganese-polluted water bodies, there are few methods that can meet the requirements of practical application in terms of economy and technology.

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