A method for synchronous reclaimed water resource recovery and a rain garden system
A rain garden and recycling technology, applied in the field of water resources utilization, can solve problems such as limited heavy metal removal capacity, soil infiltration, and insufficient organic carbon sources for biological denitrification, so as to avoid waste of water resources, reduce construction scale, and improve Effect of Stormwater Treatment Load
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Embodiment 1
[0047] Embodiment 1: as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, a rain garden system for reclaimed water synchronous resource treatment mainly includes a sump 1, an enhanced artificial filter bed system 2, an outlet pool 3, an equipment well 4, multiple functional flower beds 5, multiple functional lawns 6, Rainwater collection pipeline 7-1 and reuse pipeline 7-2, water collection tank 1, reinforced artificial filter bed system 2, outlet pool 3, equipment well 4, multiple functional flower beds 5, and multiple functional lawns 6 are all composed of Concrete, steel plate, steel mix or brick mix.
[0048] The enhanced artificial filter bed system 1, multiple functional flower beds 5 and multiple functional lawns 6 are all set as important components of the functional rain garden landscape, and at the same time have the function of water treatment, as a function of rainwater and reclaimed water re...
Embodiment 2
[0085] Embodiment 2: In this embodiment, the total area of the functional rain garden established in a college is about 500m 2 , the total area of the enhanced artificial filter bed treatment system is 15m 2 , the design rainwater source is the roof rainwater of the building complex and regional ground runoff, and the catchment area is about 2500m 2 , the annual rainfall / snow is about 2000m 3 . The source of reclaimed water in this system design is the effluent of the domestic sewage treatment system of the teaching building, and the reclaimed water volume is about 6m 3 / d. The functional rain garden is designed to handle 18m of rainwater in the warm season 3 / d, the designed warm season rainwater treatment load is 1.2m 3 / m 2 ·d; the design water treatment capacity in cold season (daily average temperature above 5°C) is 12m 3 / d, the design rain / snow water treatment load is 0.8m 3 / m 2 d.
[0086] Operation effect: During the operation, the removal rates of orga...
Embodiment 3
[0088]Embodiment 3: In this embodiment, the total area of the functional rain garden established in a college is about 400m 2 , the total area of the enhanced artificial filter bed treatment system is 20m 2 , the system feed water is rainwater and research center water. The functional rain garden is designed to handle 24m of rainwater in the warm season (the average daily temperature is above 5°C). 3 / d, the designed warm season rainwater treatment load is 1.2m 3 / m 2 ·d; the design water treatment capacity in cold season (daily average temperature above 5°C) is 18m 3 / d, the design rainwater treatment load is 0.8m 3 / m 2 d, the treatment capacity of reclaimed water (meeting the standard above grade B in the "Integrated Wastewater Discharge Standard" (GB 8978-1996)) is 9-12m 3 / d.
[0089] Operation effect: The effluent water quality of the rain garden system is better than the Class III water quality standard in the "Surface Water Environmental Quality Standard" (G...
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