Ecological barrel

Abstract

The invention discloses an ecological barrel, belonging to the field of environment-friendly sewage treatment. The structure of the ecological barrel is as follows: a water inlet pipe, a gas inlet pipe and an aeration pipe are positioned on the bottom of the barrel body; a cleaning section supporting layer is positioned above the barrel body; a coarse sand layer, a fine sand layer and a turfy soil layer are sequentially arranged on the cleaning section supporting layer from bottom to top; ornamental plants with strong denitrification and dephosphorization capacity and developed root system are planted in the turfy soil layer; an overflow trough is positioned on the top of the barrel body and connected with a water outlet pipe; a conical bucket is welded below the barrel body; a sludge discharge pipe is installed on the bottom of the conical bucket; and a vent pipe is vertically welded on the upper part of the cleaning section supporting layer. The device saves the water resources, lowers the sewage treatment cost, beautifies the environment and has high economic and social value.

Description

technical field [0001] The invention belongs to the field of environmental protection sewage treatment, in particular to an ecological barrel. Background technique [0002] Sewage treatment technology can be divided into primary, secondary and tertiary. The primary treatment is mainly the pretreatment process of sewage, the secondary is mainly the biological treatment process, and the third is the advanced treatment process. The main purpose of the tertiary treatment is to further remove Suspended solids and dissolved substances in sewage, nitrogen and phosphorus removal belong to the tertiary treatment process. The removal of nitrogen is generally through biological nitrification and denitrification, that is, inorganic nitrogen is first oxidized into nitrate through delayed aeration, and then converted into nitrogen through anaerobic denitrification, so as to achieve the purpose of removal. The process structure is complex, The condition control requirements are strict, an...

AI Technical Summary

Problems solved by technology

The removal of nitrogen is generally through biological nitrification and denitrification, that is, inorganic nitrogen is first oxidized into nitrate through delayed aeration, and then converted into nitrogen through anaerobic denitrification, so as to achieve the purpose of removal. The process structure is complex, Condition control requirements are strict, and operating costs are high

The removal of phosphorus usually adopts the method of chemical precipitation, adding aluminum salt or iron salt and lime to the sewage to form aluminum phosphate precipitation. Once the dosage is not well controlled, it is easy to cause secondary pollution to the environment

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