Method for purifying water by using floating-field plants

A technology of water purification and floating field plants, which is applied in the field of water purification, can solve problems such as the large drop in the tidal water level of inland waterways, aquatic plants not suitable for the growth of slopes, and no greening measures for revetments, so as to improve the viewing level and promote direct purification Sewage, improve the effect of remediation effect

Inactive Publication Date: 2008-09-10
SHANGHAI PUGU LANDSCAPE ENG
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Problems solved by technology

[0005] The current situation of the river improvement project in Shanghai: ① In the original revetment structure of the river, because the hard surface cannot be planted with trees and other greening, most of the revetments have not adopted greening measures; Not suitable for the growth of aquatic plants
The growth point of aquatic plants can only adapt to the elevation above the perennial water level. If aquatic plants are planted at the elevation of the water level in the state of small flood water and low tide level, the plants will grow under very deep flooding conditions. Force it to fail to survive normally, or even die; ③Boat-shaped wave scouring causes mechanical damage and uprooting, thus causing general aquatic plants not to adapt to the growth of the slopes of rivers with shipping capabilities
④Water quality in black and odorous river environment, general aquatic plants cannot grow

Method used

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  • Method for purifying water by using floating-field plants

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Embodiment

[0015] In order to understand more scientifically and accurately the effect of using Zhongda scorpion to clean and remove black and odorous water in the river, Shanghai Nanhui Water Affairs Bureau entrusted the applicant to remediate the black and odorous water area of ​​25,000 square meters in Nanhui Yizao Port. On August 25, 2006, 900 square meters of scallops were stocked, and then rapidly multiplied and expanded to form a floating field. The aquatic plants cultivated on the floating field include cress, auspicious grass, green onion, reed, yellow calamus, rice kernels, mushroom grass, and millet. The water quality monitoring of quinces, coleus, red lotus seeds, etc. has also been kept up to date, and the sampling points are set at two representative places, Nanhui Agricultural Bank and Xinya Hotel. According to the actual situation of severe eutrophication in the river water, monitoring items such as ammonia nitrogen, permanganate index, dissolved oxygen, pH, total phosphor...

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Abstract

The invention discloses a method for purifying water quality by utilizing floating-field plants, wherein floating plants on stream surfaces are taken as carriers, a wide space similar to the floating field is constructed on the stream surfaces, and aquatic plants of soilless culture are planted on the floating plants. The method has obvious water quality purification effect and strong flexibility, operability, economical practicability, persistence and enjoyment.

Description

technical field [0001] The invention relates to a method for purifying water, in particular to a method for purifying water by using floating field plants. Background technique [0002] In the river regulation projects so far, the method of planting emergent plants on the river slope is generally adopted, but because they grow on the river slope, they usually do not absorb or rarely absorb excessive nutrients in a large area of ​​water. On the other hand, in the current regulation of river waters, all aquatic plants such as reeds, cattails, and wild rice stems have been removed, and the role of aquatic plants in purifying water quality has been ignored, making river regulation measures deviate from the direction. [0003] The emergence of floating bed technology is a breakthrough of traditional methods. It grows aquatic plants on foam plastics and arranges them in rows in the river course. It is effective to purify water quality in this way, but it also has three shortcomin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCY02W10/10Y02W10/37
Inventor 徐桂根徐琛亮
Owner SHANGHAI PUGU LANDSCAPE ENG
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