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Coupled zero-valent iron composite vertical flow artificial wetland

A constructed wetland and zero-valent iron technology, applied in sustainable biological treatment, water/sludge/sewage treatment, biological water/sewage treatment, etc. Promote the use and the effect of simple production process

Active Publication Date: 2013-07-24
成都柏森环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Constructed wetlands have the advantages of cheap construction and operation costs, easy operation and maintenance, etc., but the existing constructed wetlands cannot effectively decompose and transform toxic, harmful and refractory organic pollutants such as antibiotics, aromatics, and organic cyanides in wastewater

Method used

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  • Coupled zero-valent iron composite vertical flow artificial wetland

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In this example, the structure of the composite vertical flow constructed wetland coupled with zero-valent iron is as follows figure 1 Shown, by pool body 1, dividing plate 9, filler, emergent plant 3, water inlet pipe 2 and water outlet pipe 8 form. The pool body 1 and the dividing plate 9 are made of concrete, the dividing plate 9 is located in the pool body, and the pool body is divided into a descending pool and an ascending pool; the top of the descending pool is provided with a water inlet pipe 2, and the top of the ascending pool is provided with an outlet pipe 8, The water inlet pipe is connected to the water inlet system, and the water outlet pipe is connected to the water outlet system; the fillers in the descending pool are sand layer 4, red soil layer 5, zero-valent iron layer 6, matrix layer 7, and sand layer 4 from top to bottom. It is composed of quartz sand with a particle size of 1-3 mm and a thickness of 20 cm. The red soil layer 5 is composed of south...

Embodiment 2

[0028] In this example, the structure of the composite vertical flow constructed wetland coupled with zero-valent iron is as follows figure 1 Shown, by pool body 1, dividing plate 9, filler, emergent plant 3, water inlet pipe 2 and water outlet pipe 8 form. The pool body 1 and the dividing plate 9 are made of concrete, the dividing plate 9 is located in the pool body, and the pool body is divided into a descending pool and an ascending pool; the top of the descending pool is provided with a water inlet pipe 2, and the top of the ascending pool is provided with an outlet pipe 8, The water inlet pipe is connected to the water inlet system, and the water outlet pipe is connected to the water outlet system; the fillers in the descending pool are sand layer 4, red soil layer 5, zero-valent iron layer 6, matrix layer 7, and sand layer 4 from top to bottom. It is composed of quartz sand with a particle size of 1-3 mm and a thickness of 40 cm. The red soil layer 5 is composed of south...

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Abstract

The invention provides a coupled zero-valent iron composite vertical flow artificial wetland, comprising a pool body, wherein the pool body is divided into a down-flow pool and an upper-flow pool through a clapboard; a water inlet pipe is arranged at the top of the down-flow pool; a water outlet pipe is arranged at the top of the upper-flow pool; the down-flow pool and the upper-flow pool are internally provided with fillers and planted with emergent aquatic plants; the fillers in the down-flow pool comprise a sand layer, a red earth layer, a zero-valent iron layer and a substrate layer in sequence from top to bottom; the fillers in the upper-flow pool comprise a substrate layer, a zero-valent iron layer, a red earth layer and a sand layer in sequence from bottom to top; and the bottom ofthe substrate layer in the down-flow pool and the bottom of the substrate layer in the upper-flow pool are mutually communicated to form a water flow channel.

Description

technical field [0001] The invention belongs to a sewage treatment system, in particular to a composite vertical flow artificial wetland sewage treatment system. Background technique [0002] Constructed wetland sewage treatment system is a kind of sewage treatment system developed in the 1970s. It is usually divided into vertical flow subsurface flow constructed wetland, horizontal flow subsurface flow constructed wetland and ditch type constructed wetland. Constructed wetlands are mainly composed of three parts: filler layer (the filler layer usually includes sand layer, red soil layer and matrix layer), plants and microorganisms. In a wetland system, all three can remove pollutants in sewage . Constructed wetlands remove suspended solids (SS) in wastewater through physical precipitation and filtration; use microbial adsorption and metabolism to remove BOD and COD in wastewater, and use biological denitrification and plant absorption methods to remove N and P elements in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 赖波杨平
Owner 成都柏森环保科技有限公司
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