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Fortified artificial wetlan sewage disposal method and system

A sewage treatment method and technology of sewage treatment system, applied in biological water/sewage treatment, water/sludge/sewage treatment, permeation/dialysis water/sewage treatment, etc. Large floor space and other problems, to achieve the effect of good hydraulic conductivity, saving operating costs, and reducing floor space

Inactive Publication Date: 2004-02-18
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, although some land treatment systems, such as the underground infiltration system with enhanced water distribution, can greatly improve the removal of nitrogen and phosphorus in sewage, the soil is easy to clog, the sewage treatment flow is small, the area is large, and the operation is difficult. Complicated methods and other issues, and need to consume power

Method used

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  • Fortified artificial wetlan sewage disposal method and system
  • Fortified artificial wetlan sewage disposal method and system
  • Fortified artificial wetlan sewage disposal method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The composite filler in the constructed wetland system is prepared by mixing 85% slag, 10% red soil and 5% humus according to the volume ratio. The area of ​​the wetland is 5m2, the depth is 60cm, and the slope is 0.5%. Reeds are planted in the first third section, and wild rice stems are planted in the last two-thirds section. The water distribution pipe adopts a PVC pipe with a diameter of 25mm, and holes are drilled at intervals along both sides of 90°, the hole spacing is 10cm, and the hole diameter is 2mm; , Aperture 10mm. The adjustable hose diameter is 50mm. Pebbles with a diameter of 30-60 mm are filled in the stone water distribution area and the water collection area. The hydraulic load of the system is 4cm / d, and the sewage is continuously fed into the system, and the proportion of sewage diversion in 1 / 3 places accounts for 10% of the total sewage. Influent water is domestic sewage with concentrations of COD, ammonia nitrogen, total nitrogen, and total ph...

Embodiment 2

[0029]The composite filler in the constructed wetland system is prepared by mixing 50% slag, 30% red soil and 20% humus according to the volume ratio. The area of ​​the wetland is 5m2, the depth is 80cm, and the slope is 1%. Reeds are planted in the first third section, and wild rice stems are planted in the last two-thirds section. The water distribution pipe adopts a PVC pipe with a diameter of 25mm, and holes are drilled at intervals along both sides of 90°, the hole spacing is 10cm, and the hole diameter is 5mm; , Aperture 10mm. The adjustable hose diameter is 50mm. Pebbles with a diameter of 30-60 mm are filled in the stone water distribution area and the water collection area. In addition, a control wetland is set up, which has the same structure and operating conditions, but the internal filling of the wetland adopts the traditional filling method, specifically: the bottom is filled with gravel, the middle is filled with slag, and the surface is filled with general so...

Embodiment 3

[0031] The composite filler in the constructed wetland system is prepared by mixing 60% slag, 25% red soil and 15% humus according to the volume ratio. Wetland area is 5m 2 , the depth is 120cm, the slope is 2%, reeds are planted in the first third section, and wild rice stems are planted in the last two-thirds section. The water distribution pipe adopts a PVC pipe with a diameter of 25mm, and holes are drilled at intervals along both sides of 90°, the hole spacing is 10cm, and the hole diameter is 5mm; , Aperture 10mm. The adjustable hose diameter is 50mm. Pebbles with a diameter of 30-60 mm are filled in the stone water distribution area and the water collection area. In addition, a control wetland is set, the structure and operating conditions of the wetland are the same, but the internal filler is mixed with slag and general soil. The hydraulic load of the system is 9cm / d, and the water is fed in the way of continuous sewage dosing, and the proportion of sewage diversi...

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Abstract

A method and system for treating sewage, especially the lift sewage, by artificial nunja features that the sewage is uniformly distributed into an air and water permeable composite filler layer composed of cinder laterite and humics, and the plant with high oxygen-releasing power of its root, fast growth and high power to absorb nitrogen and phosphorus is planted in the filler layer. Its advantage is high treating effect and capacity.

Description

technical field [0001] The invention relates to a sewage treatment and sewage recycling technology, in particular to a land treatment of domestic sewage in towns, mountainous areas, vacation villages, sanatoriums and other scattered residential areas as well as urban residential quarters and sewage regeneration and recycling. With the system, it can also be used for small-scale industrial wastewater treatment. Background technique [0002] In recent years, with the development of economy and society, environmental problems have become increasingly prominent, and the requirements for sewage treatment are getting higher and higher not only in cities but also in towns. Domestic sewage in scattered residential areas such as towns, mountainous areas, and villa areas carries a large amount of pollutants such as nitrogen, phosphorus, and organic matter into the water body, making the water body face the danger of severe eutrophication. In addition, with the increasingly serious si...

Claims

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Application Information

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IPC IPC(8): C02F1/44C02F3/06C02F3/32
CPCY02W10/10
Inventor 胡洪营刘超翔钱易黄霞施汉昌
Owner TSINGHUA UNIV
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