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Low bed reinforced surface flow constructed wetland system and operation methods thereof

A technology of constructed wetland system and border surface, applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc. The effect of low cost, increased diversity, and convenient operation, maintenance and management

Active Publication Date: 2015-06-03
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of low water purification efficiency and turbidity in the existing surface flow constructed wetlands, the present invention provides a low-row enhanced surface flow constructed wetland system and its operation that can realize the diversity of aquatic animals and plants and can significantly improve the water purification efficiency. method

Method used

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  • Low bed reinforced surface flow constructed wetland system and operation methods thereof
  • Low bed reinforced surface flow constructed wetland system and operation methods thereof
  • Low bed reinforced surface flow constructed wetland system and operation methods thereof

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Embodiment Construction

[0027] The low-row type surface flow constructed wetland system of the present invention has a structure such as figure 1 , figure 2 and image 3 shown. It includes water inlet pipe 1, water distribution weir 2, bed body 3, water outlet weir and water outlet pipe 4. The bed body 3 is made of concrete and is rectangular in shape with an aspect ratio of 1.8-2.0:1. The length and width are determined according to actual conditions, and the depth is 1.2-1.3m. The bed body 3 is filled with matrix (light loam and medium loam) and compacted to a filling depth of 0.6-0.7m. A water inlet pipe 1 and a water outlet pipe 4 are respectively arranged on both sides of the bed body 3 in the length direction at about 0.3 m above the substrate surface. The two sides of the length direction of the bed body 3 are respectively provided with a water distribution weir 2 and an outlet weir, both of which are triangular weirs with a height of 0.4-0.45m piled up by gravel or stones with a particle...

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Abstract

The invention provides a low bed reinforced surface flow constructed wetland system and operation methods thereof. The constructed wetland system comprises a water inlet pipe, water distribution weirs, a bed body, water outlet weirs and a water outlet pipe, wherein the bed body is filled with a matrix, the water inlet pipe and the water outlet pipe are arranged on the bed body, the water distribution weirs and the water outlet weirs are arranged on one side of the water inlet pipe and one the side of the water outlet pipe in the bed body respectively, the bottom surface of the bed body is inclined from a water inlet end to a water outlet end, the inclination is 3.5%-5%, and low beds are formed through ridging on the matrix surface. The low bed reinforced surface flow constructed wetland system has two operation methods including a submerged type and a non-submerged type. The low bed reinforced surface flow constructed wetland system has small occupied area and low investment and operation cost, the operation and maintenance management are convenient, the contact area of the matrix is increased, the absorption and filtering efficiency of the matrix is higher, emerged plants, submerged plants and floating plants are matched and planted, the plant diversity is improved, the sewage purification effect is improved, more appropriate living environment is provided for aquatic organisms, and the food chain of the constructed wetland system is more complete.

Description

technical field [0001] The invention relates to a construction and operation method of a surface flow constructed wetland system for purifying domestic and other organic sewage, and belongs to the technical field of water treatment. Background technique [0002] Constructed wetland is a comprehensive ecological system that is artificially built, controlled and operated in imitation of natural wetlands. After the sewage is discharged into the constructed wetland in a controlled manner, it is adsorbed, filtered and decomposed by the media, plants and microorganisms in the wetland under the synergistic effect of physics, chemistry and biology, achieving good benefits for sewage treatment and resource utilization. At the same time, because constructed wetlands have many advantages such as low investment, operation and maintenance costs, a wide range of applications, strong impact resistance and strong loads, they have been widely used. According to the water distribution method...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCC02F3/32Y02W10/10
Inventor 张建董上上邱宪锋张成禄房鑫王希康中杰鹿绍宇邱乙伦
Owner SHANDONG UNIV
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