A high-risk urban river water quality security and landscape construction technology
A water quality safety and river technology, applied in the direction of water pollutants, chemical instruments and methods, biological water/sewage treatment, etc., can solve problems such as difficult to effectively deal with sudden water environmental pollution accidents, and achieve low infrastructure operation costs and stable operation , the effect of flexible shape
Inactive Publication Date: 2019-02-19
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology
On-line and off-line treatment technologies can effectively improve the water quality of polluted rivers and improve the self-purification capacity of rivers. And off-line treatment technology is difficult to effectively deal with sudden water pollution accidents
Method used
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Embodiment 1
[0032] Example 1: Water quality assurance and landscaping system for a river in the north
[0033] Relying on the natural configuration of the river, according to the pollution level and the distribution of environmental risk sources, a river water quality security and landscape simulation system is constructed. The construction area of the main stream in the upstream of the simulated river course with a length of 120m is 30m 2 One off-line wetland and one ecological pond each, and the construction area of the upstream tributary is 30m 2 1 offline wetland, with a downstream construction area of 30m 2 There is one landscape lake with a river slope of 30-45°. When the influent flow of the river is 1600L / d, the water quality assurance of the river and the effluent concentration of each process of the landscaping system are shown in the following table:
[0034]
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Abstract
The invention relates to a high-risk urban river water quality safety control and landscaping establishment technique, particularly an off-line / on-line combination technique for enhancing river anti-pollution risk and river landscape level. The technique is based on the natural structure of the existing water course, and establishes a high-risk urban river water quality safety control and landscaping system according to the pollution source and environmental risk source distribution. The system comprises an upstream water quality safety control system and a downstream water quality safety control system. The upstream water quality safety control system mainly adopts an off-line treatment technique, and is mainly based on an ecological gravel bed, wetland or ecological pond; and the upstream and downstream river courses are respectively provided with a gate for controlling influent water and effluent water. The downstream water quality safety control system mainly adopts an on-line treatment technique, and is mainly based on an ecological slope protection river course, landscape lake or on-line wetland. The system combines the on-line and off-line treatment techniques, can effectively reduce the pollutants and dangerous chemicals entering the downstream water course, enhances the river self-purification efficiency, effectively improves the river water quality, is especially suitable for improving high-risk heavy-pollution urban river water systems, and is an integrated water quality control and landscaping technique having social benefits, economic benefits and environmental benefits.
Description
[0001] The invention relates to a high-risk urban river water quality security guarantee and landscape construction technology, in particular to the use of offline and online combined facilities to improve the anti-pollution risk of rivers and enhance the effect of river landscapes. Relying on the natural configuration of existing river channels, the technology builds a water quality security and landscape system for small watersheds with high pollution risks according to the distribution of pollution sources and environmental risk sources. The system includes two parts: the upstream offline water quality safety control system and the downstream online water quality safety guarantee system. The upstream water quality safety control system is mainly based on facilities such as ecological gravel beds, lakes, rainwater storage pools, wetlands or ecological ponds, and gates are set up downstream of the water inlets of each facility to control the inflow and outflow of water; the down...
Claims
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IPC IPC(8): C02F3/32C02F3/34C02F101/16
CPCC02F3/32C02F3/34C02F2101/16Y02W10/10
Inventor 彭剑峰姜诗慧宋永会颜秉斐于会彬李浩
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI