Artificially-insulated wetland device

Abstract

The invention relates to an artificially-insulated wetland device, and relates to the technical field of sewage treatment. The artificially-insulated wetland device comprises a cylinder construction object, wherein a circumferential cover is arranged on the periphery of the cylinder construction object, growth holes are formed in the junction of the circumferential cover and the cylinder construction object, plants are planted in the growth holes, a micro vent hole is formed in the top of the cylinder construction object, a cross vent hole is formed in the middle part of the cylinder construction object, a water outlet is formed below the cylinder construction object, an aerobic layer is arranged above a cavity of the cylinder construction object, and an anoxic layer is arranged below the cavity of the cylinder construction object. The top of the cylinder construction object is closed and is only provided with the micro ventilation hole for performing the air convection and for dissipating the marsh gas, so that the heat generated by the respiration of the plants and external sunlight irradiation can be continuously maintained in the device, the temperature in the device can be maintained at 10 to 15 DEG C, the temperature in the device at the daytime with sufficient sunlight can reach 15 DEG C or more, the temperature in the device at night also can reach 10 DEG C, and a heat insulation effect can be realized at the low temperature in winter or in cold districts.

Description

Technical field: [0001] The invention relates to the technical field of sewage treatment, in particular to an artificial thermal insulation wetland device. Background technique: [0002] Because constructed wetlands are greatly affected by climate and temperature conditions, the removal effect of constructed wetlands on pollutants will also change with seasonal changes. Plants and microorganisms in constructed wetlands are particularly sensitive to temperature. If plants and microorganisms grow in wetlands If affected, it will directly affect the treatment effect of the constructed wetland. A large number of studies have shown that when the water temperature is lower than 10°C, the treatment efficiency of the constructed wetland will decrease significantly, and when the water temperature is below 4°C, the digestion in the wetland tends to stagnate. At the same time, in the case of lower temperature and oxygen content, the activity of microorganisms will also decrease, which...

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Problems solved by technology

At the same time, in the case of lower temperature and oxygen content, the activity of microorganisms will also decrease, which will reduce the ability of microorganisms to decompose organic matter. The order of removal rate of constructed wetlands with seasonal changes is summer>autumn>spring>winter, ammonia nitrogen and high manganese Potassium acid index changes greatly, and the removal rate drops significantly in winter. Under low temperature conditions in winter, it not only affects the removal effect of the constructed wetland, but also has low nitrogen removal efficiency in the constructed wetland treatment process, easy clogging of the substrate, and lack of bed body. Oxygen and other issues, because constructed wetlands are greatly affected by temperature conditions, this is one of the reasons that limit the promotion and application of constructed wetlands in cold regions

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