Artificial wetlands system for purifying roof rainwater containing washing wastewater
A constructed wetland system, rainwater technology, applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Small area, avoid clogging, good effect
Inactive Publication Date: 2017-09-01
SOUTHEAST UNIV
4 Cites 6 Cited by
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Abstract
The invention discloses an artificial wetlands system for purifying roof rainwater containing washing wastewater. The artificial wetlands system comprises a rain and sewage diversion well, a water distributor, a wetland treatment area, a collector pipe and a flood discharge ditch which are connected in sequence, wherein a diverter valve is arranged in the rain and sewage diversion well; the water outlet of the rain and sewage diversion well is connected with the flood discharge ditch and the water distributor; the water distributor is arranged above the wetland treatment area; the collector pipe is arranged at the bottom of the wetland treatment area; and the wetland treatment area is composed of vertical filter layers. When rainstorm flowing into the rain and sewage diversion well has a high water level, the diverter valve is opened, and rainwater is discharged into the flood discharge ditch; when washing wastewater flowing into the rain and sewage diversion well has a low water level, the diverter valve is closed, and the washing wastewater enters the water distributor through the rain and sewage diversion well; and the washing wastewater vertically flows into the wetland treatment area through the water distributor, is separated and purified by the vertical filter layers in the wetland treatment area and then is collected by the collector pipe to gather in the flood discharge ditch so as to be discharged. The washing wastewater is subjected to proper treatment and then enters a rainwater pipe network system or is discharged into a river, so that pollution of the river is avoided.
Application Domain
Multistage water/sewage treatmentSustainable biological treatment +3
Technology Topic
Vertical filterWater pipe +8
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