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Method for purifying water by building ecological floating island with lake silt

A technology for ecological floating islands and water purification, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., to achieve the effects of saving costs, restoring wetlands, and increasing green area

Active Publication Date: 2016-06-15
上海水源地建设发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But so far, there are no relevant reports on the use of lake silt to build ecological floating islands to purify water quality

Method used

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  • Method for purifying water by building ecological floating island with lake silt

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Effect test

Embodiment 1

[0024] A method of using lake silt to build ecological floating islands to purify water is as follows:

[0025] (1) Burning sludge into floating particles

[0026] After the silt in the lake is salvaged, it will be dried, formed, and glazed in the nearest factory through an integrated silt treatment device system (including a silt drying device, a molding device, a rough sealing device, and a firing device). and surface rough treatment, and finally fired to make floating particles: the water content in the drying device is reduced to 30-25%, after 2-3 days, the water content is reduced to 20-15%, pressed and formed, placed for 1 day, the water content will drop to 12-10%, and then seal the glaze and roughen the surface, and finally put it into the firing device for firing, and the specific gravity will be 400-600kg m -3 , Floating particles that do not absorb water, and the particle size of the floating particles is 5-20mm.

[0027] The above-mentioned floating particles are...

Embodiment 2

[0033] Example of using lake silt to build an ecological floating island and planting corn on the ecological floating island:

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Abstract

The invention discloses a method for purifying water by building an ecological floating island with lake silt. The method comprises the following steps: (1) silt in a lake is fetched, and is subjected to drying, molding, glaze sealing and surface roughening treatment in a nearby factory; and the treated material is fired into non-absorbent floating particles with specific weight of 400-600kg*m<-3> and particle size of 5-20mm; (2) the ecological floating island is constructed with the floating particles; a floating planting platform is constructed in a layered way, wherein the floating planting platform is formed from top to bottom by connecting planting plain soil, a grass mat layer, a grid and the floating particles wrapped by a net; the floating particles are wrapped with an anti-aging high-strength plastic net or metal net; during an early stage of the construction of the floating planting platform, the platform is sprayed with microbes, such that oriented inoculation cultivation is carried out; and (3) plants are planted on the ecological floating island. With the method, silt recycling and the purification of polluted water are realized. Polluted water purification problems such as lake eutrophication can be solved, overall water green area can be increased, wetland can be restored, and the climate can be better regulated.

Description

technical field [0001] The invention belongs to the technical field of water quality purification and relates to a method for purifying water quality by using lake silt to build ecological floating islands. Background technique [0002] At present, the phenomenon of lake silt polluting water bodies in many places is very prominent. The traditional methods commonly used to control lake silt pollution mainly include sediment dredging. After the control of pollution sources reaches a certain level, sediment becomes the main source of water pollution. Therefore, dredging is generally considered to be an important measure to eliminate endogenous pollution. However, dredging technology is often the key to determining whether the dredging effect is good or bad. From the earliest manual dredging to the current precision underwater dredging, the dredging process has less and less impact on the environment. As a water conservancy project and waterway engineering measure, dredging ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCY02W10/10Y02A40/22
Inventor 方根生
Owner 上海水源地建设发展有限公司
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