Sewage treatment method of vertical current mangrove forest constructed wetland ecosystem

A technology of artificial wetlands and ecosystems, applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., can solve the problem of unconstructed mangrove ecosystem and unsuitable natural mangrove wetland sewage Treatment, pollution and purification functions are not fully brought into play, to achieve the effect of increasing the area of ​​microbial adhesion, solving the difficulty of replacement, and increasing the oxygen content

Active Publication Date: 2013-05-08
GUANGDONG RONGJIA ECOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the scarcity and preciousness of mangroves, it is not suitable to use natural mangrove wetlands for sewage treatment. Only engineering means can be used to establish mangrove artificial wetland technology for sewage treatment
However, the

Method used

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  • Sewage treatment method of vertical current mangrove forest constructed wetland ecosystem
  • Sewage treatment method of vertical current mangrove forest constructed wetland ecosystem
  • Sewage treatment method of vertical current mangrove forest constructed wetland ecosystem

Examples

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Effect test

Embodiment 1

[0031] like figure 1 and figure 2 Shown, a kind of construction method of vertical flow mangrove artificial wetland ecosystem technology, comprises: step A: establish artificial wetland, described artificial wetland comprises water inlet pipe 5, water inlet area 2, water outlet area 1, wetland bed 3, Sewage flows into the bottom end of the water inlet area 2 through the water inlet pipe 5, and flows into the wetland bed 3 from the water inlet area 2 through the water inlet pipe 5; the bottom is also provided with an outlet valve 10 for draining the sewage ;

[0032] Step B: If image 3 As shown, the water inlet pipe 5 (one end is open and the other end is closed) is tiled on the surface of the artificial wetland, and there are a plurality of holes distributed on both sides of the bottom of the pipe;

[0033] Step C: the artificial wetland bed 3 is a reinforced concrete or other waterproof material structure, and the gravel 7 with a particle diameter of 3-5cm is paved for 1...

Embodiment 2

[0035] Establish artificial wetlands (length×width×height, 9m*3m*1.0m) in low-lying areas, lay pipelines as described in Example 1, and fill in 10cm of gravel with a particle size of 3-5cm and crushed stones with a particle size of 1-3cm. Stone 10cm, biological oyster shell 30cm, PVC soft board with mesh (particle size 5cm) and planting soil 50cm (5:4:1 sea sand:silt:stone rice with particle size 5mm), the distance between plants is 1m, and the distance between rows is 1m The specifications are planted into the Sonneratia seedlings. Three months after the plants were planted, hand-stocking of dentate crabs and pleated crabs (stocking density of 3-5 / m 2 ), stocking mudskippers (the stocking density is 1-2 / m 2 ); stocking clamworms (stocking density of 2-5 / m 2 ). At a hydraulic load of 5 m 3 d -1 , under the operating parameters with a residence time of about 3 days, after nearly three years of operation, the dissolved oxygen in the influent water is very low, mostly less ...

Embodiment 3

[0037] Establish artificial wetlands in low-lying places (length×width×height, 9m*3m*1.2m), lay pipes as mentioned above, fill in 10cm of gravel with a particle size of 3-5cm, and 10cm of gravel with a particle size of 1-3cm , biological oyster shell 40cm, PVC soft board with mesh (particle size 2mm) and planting soil 60cm (6:2:2 sea sand:silt:stone rice with particle size 5mm), the distance between plants is 0.3m, and the distance between rows is 0.3 The size of m is planted into the candela seedlings. Three months after the plants were planted, hand-stocking of the Sesoria dentatus and the Sesame pleats (stocking density of 3-5 / m 2 ), stocking pseudo-black snails and black-ringed left-shaped snails (stocking density is 1-3 / m 2 ), stocking glandular spiny clamworms (stocking density of 2-5 / m 2 ). At a hydraulic load of 5 m 3 d -1 , under the operating parameters with a residence time of about 3 days, after nearly three years of operation, the dissolved oxygen in the inf...

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Abstract

The invention provides a sewage treatment method of a vertical current mangrove forest constructed wetland ecosystem. The sewage treatment method comprises the following steps of: A, establishing a constructed wetland; B, paving a water inlet pipe on the surface layer of the constructed wetland flatly, wherein a plurality of holes are distributed at two sides of the bottom of the water inlet pipe; C, paving gravels at the bottom of a constructed wetland bed body, paving broken stones on the gravels, paving oyster shells on the broken stones, paving a PVC (Poly Vinyl Chloride) flexible plate with meshes on the oyster shells, paving mangrove forest planting soil on the flexible plate for plating mangrove plants; D, filling oyster shells in a water inlet region, artificially stocking large benthonic animals on the mangrove forest planting soil layer; and E, every other 8-15 years, completely felling the mangrove plants, and re-planting the mangrove plants. According to the invention, the mangrove plants as perennial woody plants are used as the plants in the constructed wetland, thus the problem that the plants in the wetland need to be harvested every year is saved, and a large quantity of manpower and material resources are saved.

Description

technical field [0001] The invention relates to the technical fields of ecological restoration, environmental protection engineering and sewage treatment, in particular to a sewage treatment process technology of vertical flow mangrove artificial wetland ecosystem. Background technique [0002] Since the rise of the constructed wetland sewage treatment system in the 1970s and 1980s, it has developed rapidly all over the world due to its advantages of low investment cost, high purification efficiency and simple maintenance, and has been widely established for the treatment of industrial, agricultural and domestic sewage. In the final analysis, the function implementation of constructed wetlands is the result of microbial activities as decomposers in nature. Wetland plants not only provide a physical attachment surface for the growth of microorganisms, promote the formation of biofilms, but also provide microorganisms with the oxygen, nutrients and other living environment cond...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 昝启杰杨琼程华荣程丛星昝欣周海旋毛礼杨远铿
Owner GUANGDONG RONGJIA ECOLOGICAL TECH CO LTD
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