Intelligent biological retention tank and construction method thereof

Abstract

The invention relates to the technical field of rainwater collection and purification of sponge cities, in particular to an intelligent biological retention tank and a construction method thereof. Theretention tank makes up for the shortage of the existing facilities to the back-use and self-control of rain water. According to the technical scheme: the two sides of the detention tank are providedwith an inflow notch and a perforated spray irrigation pipe along the stone, the retention groove comprises a surface water storage layer, a filling layer, a middle sand permeable layer and a water storage module layer from top to bottom, and also comprises an automatic control system, a back-use water pump and an inspection well are arranged at the bottom of the water storage module layer, a recharge water pipeline is arranged in the inspection well, the recharge water cloth pipeline is connected with the back-use water pump, the inspection well extends out of the filling layer, the surfacelayer of the filling layer is provided with a soil moisture sensor, an automatic control system is connected with the soil moisture sensor and the back-use water pump, the recharge water pipeline extends out of the filling layer and is connected with the perforated spray irrigation pipe, an overflow well is arranged in the filling layer, and the wellhead of the overflow well is higher than the surface of the filling layer. The retention tank is constructed by using a special method.

Description

technical field [0001] The invention relates to the technical field of rainwater collection and purification in a sponge city, in particular to an intelligent biological retention tank and a construction method thereof. Background technique [0002] With the rapid development of society and economy, urban water safety and water environment problems are becoming more and more serious, and more and more cities are frequently experiencing environmental problems such as heavy rain, internal waterlogging, and black and smelly water bodies. To this end, a new generation of urban stormwater management concept, namely sponge city, is proposed. Sponge city refers to strengthening urban planning and construction management, giving full play to the absorption, storage and slow release of rainwater by ecological systems such as buildings, roads, green spaces, and water systems, effectively controlling rainwater runoff, and realizing natural accumulation, natural infiltration, and natura...

AI Technical Summary

Problems solved by technology

Permeable pavement is mainly used for sidewalks and municipal roads with small loads. Rainwater infiltrates through the permeable surface layer to replenish groundwater. Its functions mainly include: infiltration, retention, and discharge, and lack of purification, storage, and utilization functions; in addition, Its permeable surface layer is easily clogged by suspended particles in runoff

[0004] However, traditional low-impact facilities in the form of bioretention zones, grass ditch, and sunken green space mainly include the functions of "seepage, stagnation, purification, and drainage" and lack the functions of "storage and use". It is also restricted by the site and topographical conditions

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