Domestic wastewater purifying treatment system with wetland combination of biological membrane, aeration pipe and plant filter frame

Abstract

The invention discloses a domestic wastewater purifying treatment system with a wetland combination of a biological membrane, an aeration pipe and a plant filter frame. The domestic wastewater purifying treatment system comprises a grille well, a constructed wetland pool and an aeration pump. A water inlet pipeline is arranged on the left sidewall of the grille well, the grille well is connected with the constructed wetland pool through a first short pipe, the constructed wetland pool comprises a biological membrane reaction tank and the plant filter frame, a biological membrane component is arranged in the inner center of the biological membrane reaction tank, a micro-porous aeration plate is arranged below the a position inside the biological membrane reaction tank and is externally connected to a gas outlet of the aeration pump, wetland plants are planted on a fine-sand filler layer, and a water outlet pipeline is arranged above the right side of the plant filter frame. The domestic wastewater purifying treatment system has the advantages that the domestic wastewater purifying treatment system is simple in technology, large in buffer capacity, small in occupied area, low operational cost and good treatment effect, gives full play to natural biological degradation effect, achieves water quality purification and water quality improvement and has a landscape function.

Description

technical field [0001] The invention relates to the technical field of domestic sewage treatment systems, in particular to a combined purification domestic sewage treatment system for wetlands with biofilms and aeration tube plant filter frames. Background technique [0002] The general method of traditional constructed wetlands to purify domestic sewage is: use gravel, gravel, soil, etc. as substrates, plant wetland plants in them to form constructed wetlands, and purify domestic sewage through substrate adsorption, microbial degradation and plant absorption. The disadvantages of the above-mentioned methods are that the purification and treatment efficiency of domestic sewage is low, the constructed wetland occupies a large area, and the system management is complex and requires a large amount of management. Moreover, because the suspended solids in the wetland domestic sewage are not effectively removed, the purification load of the wetland domestic sewage is too large, an...

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Problems solved by technology

The disadvantages of the above methods are the low efficiency of purification and treatment of domestic sewage, the artificial wetland covers a large area, and the system management is complicated and the amount of management is large.

Moreover, because the suspended solids in the wetland domestic sewage are not effectively removed, the purification load of the wetland domestic sewage is too large, and the circulating pump is easy to block.

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