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Artificial marshland composite vegetation water treatment system

A technology of constructed wetland and vegetation, applied in the field of water treatment, can solve the problems of large area and constraints of constructed wetland, and achieve the effect of good purification potential, strong vitality and rapid growth

Inactive Publication Date: 2009-02-11
BEIJING JINXIU DADI AGRI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the process of practical application, although densely populated urban areas have the most urgent demand for sewage purification technology, the defect of large area of ​​constructed wetland often restricts its application. In order to improve the removal efficiency and landscape effect, it is necessary to construct multiple landscapes. A multi-objective urban wetland with complex types of wetland plant species

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023]In the subsurface wetland system with a scale of 50m×10m, the perennial underground roots of Scirpus validus, Typha angustata, and Lythrum salicaria are used in accordance with...Square onion row...Cattail row...Shui onion row...Water willow row...Water Onion row... (row spacing 50cm) planting mode builds a subsurface flow artificial wetland sewage purification system on a gravel substrate with a particle size of about 5cm. After one year of completion, the daily sewage treatment volume reaches 50m 3 d -1 Under the conditions, during the period of 9.13-11.21 in 2005, its removal efficiency can reach COD cr 0.750gm -2 d -1 , TN 0.032gm -2 d -1 , TP 0.386gm -2 d -1 .

Embodiment 2

[0025] In the subsurface wetland system with a scale of 50m×10m, the perennial underground roots of Scirpus validus, Typha angustata, and Lythrum salicaria are used in accordance with...Square onion row...Cattail row...Shui onion row...Water willow row...Water Onion row... (row spacing 50cm) planting mode builds a subsurface flow artificial wetland sewage purification system on a gravel substrate with a particle size of about 5cm. After one year of completion, the daily sewage treatment volume reaches 50m 3 d -1 Under the condition of 4.6-10.27 in 2006, its removal efficiency can reach COD cr 0.64gm -2 d -1 .

Embodiment 3

[0027] In the 30m×20m subsurface flow wetland system, the perennial underground roots of Scirpus validus, Typha angustata, and Lythrum salicaria are used in accordance with the ... water onion row... cattail row... water onion row... water willow row... water Onion row... (row spacing 50cm) planting mode builds a subsurface artificial wetland sewage purification system on a gravel substrate with a particle size of about 5cm. After one year of completion, the daily sewage treatment volume reaches 30m 3 d -1 Under the conditions, during September-November 2005, its removal efficiency can reach COD cr 0.830gm -2 d -1 , TN 0.046gm -2 d -1 , TP 0.462gm -2 d -1 .

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Abstract

The invention discloses a waste water purifying system of artificial marshland composite vegetation, which comprises the following steps: including water green onion, fragrant flag, water willow; interlineating fragrant flag line and water willow line in the water green onion line. This invention adopts low cost water green onion, fragrant flag, water willow and gravel base material to constitute hidden flow artificial marshland system, can either remove contaminant of water body effectively, or increase landscape of marshland distinctively.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to an artificial wetland composite vegetation sewage treatment system. Background technique [0002] Constructed wetlands are planted with wetland plants on a certain substrate (filler), which has a strong ability to degrade organic matter and nitrogen and phosphorus pollutants. Artificial wetlands use the physical, chemical, and biological triple coordination of the matrix-microbe-plant complex ecosystem to achieve efficient purification of wastewater through filtration, sedimentation, ion exchange, plant absorption, and microbial decomposition. As early as the beginning of the 20th century, Britain and the United States had precedents of using cattail (Typha angustifolia) swamps to treat sewage. [0003] At present, most of the studies on wetland plants are carried out around herbs, such as cattail (Typha sp.), reed (Phragmites sp.), water onion (Scirpus sp.), canna (Canna sp.), wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 靖德兵胡洪营王玉忠赵孟彬
Owner BEIJING JINXIU DADI AGRI CO LTD
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