Method for treating domestic sewage through artificial wetland

A technology for artificial wetlands and domestic sewage, applied in the field of artificial wetland treatment of domestic sewage, can solve the problems of pollution and high cost, and achieve the effects of promoting healthy growth, reducing the cost of talents, and reducing the production of odorous water and odor.

Inactive Publication Date: 2019-02-19
FOSHAN UNIVERSITY
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  • Abstract
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Problems solved by technology

[0003] Compared with industrial wastewater, domestic sewage has fewer harmful chemicals. The cost of treating domestic sewage through the proces

Method used

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] A method for treating domestic sewage in a constructed wetland, comprising the steps of:

[0021] S1. Filter the domestic sewage and introduce it into the aeration tank, and aerate the sewage through the aeration device in the aeration tank to dissolve oxygen or remove dissolved gases and volatile substances in the domestic sewage;

[0022] S2. Lead the dissolved gas and volatile substances in the domest...

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Abstract

The invention discloses a method for treating domestic sewage through artificial wetland. The method includes following steps: S5, guiding upper-layer domestic sewage in a sewage tank into artificialwetland; S6, guiding the domestic sewage after being treated in upper-layer artificial wetland into middle-layer artificial wetland and bottom-layer artificial wetland, wherein aquatic plants plantedin the middle-layer artificial wetland and the bottom-layer artificial wetland are arranged as follows: taking reed, arundo donax var versicolor, cattail and aquatic iris as emergent aquatic plants ina stabilization pond shoreside shallow area, taking water hyacinth as a main floating-leaved plant and cold-season cress as a main floating bed plant, and total plant coverage is greater than 20%. Compared with conventional technology, the method has the advantages that sewage is pretreated through process steps of filtering, aerating and precipitating, impurities and high salt in the sewage canbe separated effectively, and impact of production sewage on artificial wetland ecological environment is prevented; organic matter decomposed by the aquatic plants can provide a carbon source for wetland denitrification.

Description

technical field [0001] The invention belongs to the technical field of domestic sewage treatment, and more specifically relates to a method for treating domestic sewage in an artificial wetland. Background technique [0002] Constructed wetland is a comprehensive ecosystem. It applies the principles of species symbiosis, material recycling and regeneration, and the principle of structure and function coordination in the ecosystem. On the premise of promoting a virtuous cycle of pollutants in wastewater, it fully exerts the production potential of resources and prevents environmental degradation. Re-pollution, to obtain the best benefits of sewage treatment and resource utilization. The plants in the constructed wetland can also transport oxygen to the water body and increase the activity of the water body. Wetland plants also play an important role in controlling water pollution and degrading harmful substances. [0003] Compared with industrial wastewater, domestic sewage...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34C02F3/02C02F9/14C02F101/20C02F101/16
CPCC02F3/02C02F3/32C02F3/34C02F9/00C02F2101/16C02F2101/20C02F2101/203C02F2209/22C02F2305/08Y02W10/10
Inventor 梅秀芹张永利
Owner FOSHAN UNIVERSITY
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