Landscape-type recycled water treatment wetland system suitable for urban community
A wetland and community technology, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., can solve the problem that the effluent of secondary treatment may not meet the requirements of reuse, and achieve landscape effect Beautiful, reduced operation and management costs, and low construction costs
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Embodiment 1
[0023] The perennial underground roots of reeds, wild rice stems, water willows, and water onions are used according to the planting mode of ... reed row... water bamboo row... reed row... water willow row... reed row... water spring onion row...reed row (row spacing 50cm, plant spacing 20cm) The planting mode is in the thickness A subsurface flow constructed wetland reclaimed water purification system was built on a gravel matrix with a particle size of about 70 cm and a particle size of about 5 cm. During the period from September 13 to November 21, 2005, its removal efficiency could reach COD cr 0.807g m -2 d -1 , TN 0.054g m -2 d -1 , TP 0.27g m -2 d -1 ; The evapotranspiration of the wetland with reed composite vegetation reaches 3.16mm m -2 d -1 .
Embodiment 2
[0025] The perennial underground roots of reeds, wild rice stems, water willows, and water onions are used according to the planting mode of ... reed row... water bamboo row... reed row... water willow row... reed row... water spring onion row...reed row (row spacing 50cm, plant spacing 30cm) planting mode in the thickness A subsurface flow constructed wetland reclaimed water purification system was built on a gravel matrix with a particle size of about 70 cm and a particle size of about 5 cm. During the period from September 13 to November 21, 2005, its removal efficiency could reach COD cr 0.708g m -2 d -1 , TN 0.018g m -2 d -1 , TP 0.26g m -2 d -1 ; The evapotranspiration of the wetland with reed composite vegetation reaches 3.13 mm m -2 d -1 .
Embodiment 3
[0027] The perennial underground roots of reeds, wild rice stems, water willows, and water onions are used according to the planting mode of ... reed row... water bamboo row... reed row... water willow row... reed row... water onion row...reed row (row spacing 60cm, plant spacing 30cm) planting mode in thickness A subsurface flow constructed wetland reclaimed water purification system was built on a gravel matrix with a particle size of about 70 cm and a particle size of about 5 cm. During the period from September 13 to November 21, 2005, its removal efficiency could reach COD cr 0.658g m -2 d -1 , TN 0.029g m -2 d -1 , TP 0.52g m -2 d -1 ; The evapotranspiration of the wetland with reed composite vegetation reaches 2.88mm m -2 d -1 .
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