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Efficient molybdenum removal vertical subsurface flow constructed wetland purification device

A technology of vertical underflow and constructed wetlands, applied in chemical instruments and methods, water/sludge/sewage treatment, water pollutants, etc.

Pending Publication Date: 2020-10-23
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to develop a high-efficiency molybdenum removal vertical underflow artificial wetland purification device

Method used

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  • Efficient molybdenum removal vertical subsurface flow constructed wetland purification device
  • Efficient molybdenum removal vertical subsurface flow constructed wetland purification device
  • Efficient molybdenum removal vertical subsurface flow constructed wetland purification device

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Embodiment 1

[0027] This embodiment provides a high-efficiency molybdenum removal vertical underflow artificial wetland purification device suitable for molybdenum tailings non-point source sewage treatment, such as figure 1 As shown, the purification device includes a water inlet mechanism 1, a purification zone 2, and a water outlet mechanism 3. The purification zone 2 includes a soil layer 21, a composite matrix layer 22, a fine sand layer 23, and a supporting layer from top to bottom.

[0028] Soil layer 21 is planted with cattails, and the planting density of cattails is 26 plants / m 2 . The composite matrix layer 22 is a combined matrix of modified cinder and pyrite, and the supporting layer includes a fine gravel layer 24 and a coarse gravel layer 25 from top to bottom.

[0029]A water inlet mechanism 1 is arranged above the purification area 2, and a water outlet mechanism 3 is arranged at the bottom of the purification area 2. The water intake mechanism 1 adopts intermittent wate...

Embodiment 2

[0034] Same as Example 1, the difference is that the composite matrix layer is soil.

Embodiment 3

[0036] Same as Example 1, the difference is that the composite matrix layer is modified cinder.

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Abstract

The invention provides an efficient molybdenum removal vertical subsurface flow constructed wetland purification device which comprises a water feeding mechanism, a purification area and a water discharge mechanism, wherein the purification area sequentially comprises a soil layer, a composite matrix layer, a fine sand layer and a supporting layer from top to bottom, the composite matrix layer isa combined matrix of modified coal cinder and pyrite, and plants are planted on the soil layer; the water feeding mechanism is arranged above the purification area, and the water discharge mechanism is arranged at the bottom of the purification area. As one of the components of the filler layer, the composite matrix has the advantages of high molybdenum removal efficiency, wide source, low price,easiness in obtaining, simplicity and convenience in preparation and the like. An adsorption material is combined with a constructed wetland, the removal efficiency of the heavy metal molybdenum sewage is high, and the molybdenum concentration of the effluent of the constructed wetland meets the underground water quality standard in China.

Description

technical field [0001] The invention relates to the technical field of artificial wetland sewage ecological treatment, in particular to an efficient molybdenum removal vertical underflow artificial wetland purification device. Background technique [0002] Molybdenum (Mo) is one of the transition elements with biological activity, and it is also an essential trace element for animals and plants. A proper intake is beneficial to the normal physiological activities of living organisms. However, once molybdenum intake is excessive, it will damage the health of organisms, and even lead to molybdenum poisoning of organisms. The mass concentration limit of molybdenum in the specific items of centralized drinking water surface water sources in my country's "Drinking Water Hygienic Standards" and "Surface Water Environmental Quality Standards" is 0.07mg L -1 . The hexavalent molybdate ion (Mo(VI)) is relatively stable in the environment and is easily taken up by organisms in most ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/20
CPCC02F9/00C02F1/281C02F1/001C02F3/32C02F2101/20
Inventor 练建军陈波贾勇孟海玲王恬娜吴萌徐黄欢
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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