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Automatic oxygen increasing type constructed wetland device adopting hollow bricks

A technology of artificial wetlands and hollow bricks, applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc. Reasonable and improve the effect of purification capacity

Inactive Publication Date: 2012-07-18
CHONGQING UNIV OF ARTS & SCI
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Although artificial enhanced aeration can significantly increase the dissolved oxygen content in the wetland system and enhance the purification capacity of the wetland system, the wetland system is relatively complex and requires energy consumption, which increases the cost of wastewater treatment

Method used

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  • Automatic oxygen increasing type constructed wetland device adopting hollow bricks
  • Automatic oxygen increasing type constructed wetland device adopting hollow bricks
  • Automatic oxygen increasing type constructed wetland device adopting hollow bricks

Examples

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Embodiment 1

[0018] An artificial wetland device for sewage treatment, the size of the wetland system is 200cm×90cm×75cm (L×W×H); it includes a water distribution pipe 1 arranged at the top of the wetland system, a wetland filling matrix 2 (sand), and shale hollow bricks (3), wetland filling matrix 4 (slag), wetland filling matrix 5 (gravel), water collection tank 6 and water outlet 7, the shale hollow bricks in the wetland system are placed horizontally, no adhesive is added between the hollow bricks, and the hollow bricks The layer is gradually concave down by 20°-30° (such as figure 2 Shown), so that the waste water seeps down from it, so as not to fill the hollow bricks and reduce the oxygen supply capacity. The hollow bricks on both sides of the wetland communicate with the atmosphere, which is convenient for automatic oxygen supply, such as image 3 shown. In the natural state, the collected Siberian iris was directly planted in the surface soil of the wetland and stabilized with ...

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Abstract

The invention provides an automatic oxygen increasing type constructed wetland device adopting hollow bricks, and relates to a constructed wetland system device used for treating wastewater. The automatic oxygen increasing type constructed wetland device comprises a water distributing pipe, wetland filling substrates (sandy soil, furnace slag and gravel), the shale hollow bricks, a water collecting tank and a water outlet, wherein the shale hollow bricks in the wetland system are placed transversely; no bonding substance is filled between the hollow bricks; and the hollow brick layer is gradually concave downwards at an angle of 20 DEG to 30 DEG, so that the wastewater infiltrates downwards and cannot fill the hollow bricks to reduce the oxygen supply capability. The hollow bricks on the two sides of the wetland are communicated with atmosphere, so that oxygen can be supplied conveniently and automatically; and meanwhile, the particle sizes and the filling thicknesses of the filling substrates are also screened to find out the best particle sizes and the best filling thicknesses of the substrates, so that the adsorption ability of the wetland on phosphorus in the wastewater is improved and the purification ability of the wetland system is enhanced. In summary, the automatic oxygen increasing type constructed wetland device has a simple and reasonable structure and achieves an ideal effect on eutrophic water body treatment.

Description

technical field [0001] The invention relates to an artificial wetland device for sewage treatment, in particular to a wetland purification device for treating eutrophic sewage. Background technique [0002] Constructed wetland is a new type of wastewater treatment technology. It is a treatment system constructed by artificially optimizing the simulated wetland system, which has the comprehensive degradation function of the ecosystem and can be supervised and controlled by humans. It is built to give full play to the wastewater treatment function of the wetland ecosystem and improve the sewage purification effect. Its sewage purification function is incomparable to the natural wetland system. It plays a unique role in maintaining ecological balance and protecting biodiversity. It overcomes the shortcomings of using chemical methods in sewage treatment to easily cause secondary pollution and physical methods to treat the symptoms but not the root cause. It has the advantages ...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 夏红霞朱启红李强
Owner CHONGQING UNIV OF ARTS & SCI
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