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Improvement method of urban river water environment

A water environment and water quality improvement technology, applied in chemical instruments and methods, water supply devices, water conservation, etc., to achieve the effects of improving water quality, promoting development bottlenecks, and enriching species diversity

Active Publication Date: 2018-03-27
绵阳市靓固建设工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The present invention overcomes the deficiencies of the prior art and provides a method for improving the water environment of urban rivers, which is used to solve the technical problem of how to improve the water environment of urban rivers

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  • Improvement method of urban river water environment
  • Improvement method of urban river water environment
  • Improvement method of urban river water environment

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.

[0035] A method for improving the water environment of an urban river, which includes building a green belt on the bank, building an ecological revetment protection system, improving basic conditions (maintenance of water level, improvement of water quality and improvement of bottom mud), interception and removal of upstream scum, restoration of higher aquatic plant vegetation, Food web chain reconstruction, construction of sediment-water interface biological system, etc., specifically:

[0036] Water level maintenance: keep the water level of urban rivers within a certain range; set up deep ditches and deep pools for rivers that dry up in dry season or have too little flow, and use sluice gates or rubber to divide the river sections that have been cut off for more than 2 months. The dam maintains the lowes...

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Abstract

The present invention discloses a city river course environment improving method, which comprises: water level maintaining, wherein the city river course is maintained at a certain range; water quality improving, wherein a flocculant and / or oxidizing agent is used for the water body so as to make the suspension of the water body be subjected to coagulation, and then settlement is performed to improve the transparency of the water body; sediment improving, wherein the sediment particle size is refined, the sediment oxidation reduction conditions are improved, and the sediment harmful organisms are killed; upstream floating residue trapping removing, wherein the grilling for removing the floating substances on the water surface is arranged on the river course upstream; and ecological revetment protection, wherein ecological hexagonal bricks or / and wetland plants and / or vine plants are used to protect the revetment so as to enhance the side slope stability. According to the present invention, the river course water quality is improved, the sense organ requirements of human on the river course are met, and the river course organism species diversity is enriched.

Description

technical field [0001] The invention relates to the technical field of water ecological restoration, in particular to a method for improving the water environment of low-flow urban rivers. Background technique [0002] Human beings like to live in water, and cities are also built with water. However, with the growth of population, the continuous development of industrialization and urbanization, and the acceleration of urbanization, the urban rivers and even the surrounding rivers have gradually become giant sewers, resulting in constant water quality in rivers. Dropped, the stench was bad. According to the "2014 China Environmental Status Bulletin", the water quality of 968 nationally controlled surface water monitoring sections (points) in 423 major rivers and 62 key lakes (reservoirs) across the country is Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, inferior to Ⅴ Sections with similar water quality accounted for 3.4%, 30.4%, 29.3%, 20.9%, 6.8%, and 9.2% respectively. The main pollution indicators we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32C02F3/34C02F3/02C02F9/14C02F11/00C02F11/02C02F11/06E03B3/02E03B3/12E03B3/14
CPCY02A20/00Y02A20/108Y02W10/10
Inventor 叶子军
Owner 绵阳市靓固建设工程有限公司
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