The invention discloses a river-adjacent
road surface source reduction and rainwater recycling
system, which can be applied to a road
bank slope with a certain river-adjacent space, and comprises four subsystems, namely an excess seepage collection subsystem, a non-
point source reduction subsystem, a storage retention subsystem and a rainwater recycling subsystem. Initial rainwater runoff preferentially enters the over-infiltration collection subsystem, naturally infiltrates through an infiltration gutter inlet, an ecological tree
pool and permeable pavement, and enters the non-
point source reduction subsystem through an overflow port, a drainage blind
pipe, a blind
ditch and other paths when an infiltration space is saturated. The non-
point source reduction subsystem is in an S-shaped roundabout form, the rainwater runoff path is prolonged, stagnant storage and purification are achieved, and purified rainwater flows into the storage and stagnant storage subsystem on the lower layer while pollutants such as
organic matter,
suspended matter,
nitrogen and
phosphorus are purified and removed.
Gabion gabions are adopted as a basic structure frame in the storage and stagnation subsystem, a rainwater PP module is filled, a rainwater recycling lifting
submersible pump, a sprinkling
irrigation pipeline, a watering
cart taking pipeline and an access hole are arranged, and effective recycling of rainwater resources is achieved.