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Technology for improving the water quality of landscape water

A technology for water quality improvement and technology, which is applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc. It can solve problems such as environmental pollution, no ecological chain formation, and inability to reduce nutrients in water bodies.

Inactive Publication Date: 2009-09-30
南京中科水治理股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional landscape water quality improvement methods include: physical methods such as mechanical filtration, water diversion, dredging, etc., which are too expensive to solve practical problems; chemical methods such as adding algicides will cause environmental pollution; adding microorganisms cannot Reduce nutrients in water bodies; in recent years, the method of building aquatic animal and plant systems has sprung up, but only a part of system building has been done, and a complete ecological chain has not been formed

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0011] Take the South Lake of Huizhou West Lake as an example: the lake has a water surface area of ​​about 120,000 square meters and a water depth of about 1.7 meters. The annual average total nitrogen in Nanhu Lake is 1.5 mg / L, the annual average total phosphorus is 0.26 mg / L, and the annual average chlorophyll a is 69.26 μg. / L, the highest can reach more than 140μg / L, and the transparency is about 30cm. There are no large aquatic plants at the bottom of the lake, and tilapia is the dominant species. The water color of Nanhu Lake is yellow-green all the year round, with high turbidity and poor landscape function.

[0012] In 2007, this technology was used to remediate the South Lake. First, the South Lake was geologically transformed, and the hard floor area within 5 meters along the shore of the South Lake was artificially covered with soil with a thickness of 20cm and a slope ratio of 1:5. Carry out fish regulation subsequently, mainly be to carry out wild fish removal wi...

Embodiment 2

[0015] Take the Pinghu Lake of Huizhou West Lake as an example: the lake is located in front of Yuanmiao Temple next to the West Lake Hotel, with an area of ​​about 10,000 square meters. At the end of 2004, the same landscape water quality improvement technology was used to transform the bottom of the lake; some wild fish were removed , silver carp and snakehead were stocked, and bitter grass and foxtail algae were planted. Since the implementation of this technology, the bitter grass and foxtail algae have grown luxuriantly, with a coverage of 60%. Although complex natural conditions such as typhoons and floods have been encountered in the past five years, the system has operated stably and well, and the water body has remained crystal clear. The project effect has been recognized by all walks of life in Huizhou City, and has successfully passed the expert review and acceptance organized by Huizhou City Government.

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Abstract

The present invention relates to a technology for improving the water quality of landscape water, composed of principally three components: 1) a bottom quality reconstruction technology; 2) an aquatic animal control technique, 3) an aquatic vegetation renovation technology. The technology of the invention has strong generalization worthiness for improving the water quality of a cityscape shallow water type lake (within three meters), a prominence advantage is that a clear water type ecologic system is constructed through the water quality improving technology, the water will be clear and has well landscape effect, devotion is disposable and the operation cost is low.

Description

technical field [0001] The invention relates to a landscape water quality improvement technology, which has the advantages of constructing a clear water ecological system through the landscape water quality improvement technology, making the water clear and having a good landscape effect, one-time investment, and low operating cost. Background technique [0002] Traditional landscape water quality improvement methods include: physical methods such as mechanical filtration, water diversion, dredging, etc., which require a large investment and are difficult to solve practical problems; chemical methods such as adding algicides will cause environmental pollution; adding microorganisms cannot Reduce nutrients in water bodies; In recent years, the method of building aquatic animal and plant systems has sprung up, but only a part of system building has been done, and a complete ecological chain has not been formed. Contents of the invention [0003] The purpose of the present in...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 史加达刘平平刘从玉刘正文韩博平李传红谭镇
Owner 南京中科水治理股份有限公司
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