Method for in-situ ecological treatment of town domestic waste water by using river and creek converging
A technology for ecological treatment and domestic sewage, applied in the direction of sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc., can solve problems such as difficult concentration, low level of economic development, poor awareness of environmental protection of village and town residents, and achieve Increase biodiversity, save land resources, and promote the effect of ecological restoration
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Embodiment 1
[0031] Riverside width B=4-4.5m, along the direction of water flow, the river section is divided into in-situ biological barrier purification ditch section 1 with length L1=140m, concrete overflow weir 2 with width L2=0.2m, and concrete overflow weir with length L3=18m Intermittent in-situ aeration tank section 3, surface flow constructed wetland system section 4 with length L4=40m, geotextile overflow weir 5 with width L5=0.15m. Plant revetment vegetation such as orchid Panax notoginseng and Zailihua and other landscape trees such as Photinia fruticosa, Lagerstroemia crape myrtle, and weeping willow on both banks of the river to construct ecological slope protection6. After entering the river bank 7 through the ecological slope protection 6, the sewage flows through the above-mentioned treatment areas in sequence, and finally overflows through the geotextile overflow weir 5 and is discharged into the downstream river bank. The bottom mud in the in-situ bio-barrier purificatio...
Embodiment 2
[0035] Riverside width B=6.5-8.5m, along the direction of water flow, the river section is divided into in-situ biological barrier purification ditch section 1 with length L1=164m, concrete overflow weir 2 with width L2=0.2m, and length L3=20m Intermittent in-situ aeration pool section 3, surface flow constructed wetland system section 4 with length L4=45m, geotextile overflow weir 5 with width L5=0.15m. Plant revetment vegetation such as orchid Panax notoginseng and Zailihua and other landscape trees such as Photinia fruticosa, Lagerstroemia crape myrtle, and weeping willow on both banks of the river to construct ecological slope protection6. After entering the river bank 7 through the ecological slope protection 6, the sewage flows through the above-mentioned treatment areas in sequence, and finally overflows through the geotextile overflow weir 5 and is discharged into the downstream river bank. The bottom mud in the in-situ bio-barrier purification ditch section can be use...
Embodiment 3
[0039] Riverside width B=5.5-8.0m, along the direction of water flow, the river section is divided into in-situ biological barrier purification ditch section 1 with length L1=198m, concrete overflow weir 2 with width L2=0.2m, and concrete overflow weir with length L3=23m Intermittent in-situ aeration tank section 3, surface flow constructed wetland system section 4 with length L4=48m, geotextile overflow weir 5 with width L5=0.15m. Plant revetment vegetation such as orchid Panax notoginseng and Zailihua and other landscape trees such as Photinia fruticosa, Lagerstroemia crape myrtle, and weeping willow on both banks of the river to construct ecological slope protection6. After entering the river bank 7 through the ecological slope protection 6, the sewage flows through the above-mentioned treatment areas in sequence, and finally overflows through the geotextile overflow weir 5 and is discharged into the downstream river bank. The bottom mud in the in-situ bio-barrier purificat...
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