Water quality in-situ pre-treatment method in water source region

A water source and pretreatment technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, energy wastewater treatment, etc., can solve problems such as inaccessible directions and path constraints, and achieve operating cost savings, The effect of small external interference and simple structure design

Active Publication Date: 2015-11-25
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because the invention is designed according to the characteristics of the river channel, there is no water channel set up with isolation fences, and the direction and path of water inflow cannot be restricted, so it cannot be directly applied to the in-situ water quality pretreatment of the water source of the waterworks

Method used

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  • Water quality in-situ pre-treatment method in water source region
  • Water quality in-situ pre-treatment method in water source region
  • Water quality in-situ pre-treatment method in water source region

Examples

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Effect test

Embodiment 1

[0050] Such as figure 1 As shown, an in-situ pretreatment method for water quality in a water source, the system includes a water channel whose shape is set according to the topography of the water source, a photocatalytic purification zone 2 arranged in sequence along the direction from the water inlet end to the water outlet end of the water channel, and a combined ecological floating bed purification area 3 and the aquatic plant purification zone 4, the waterway is surrounded by a fence 1, and the waterway inlet end is provided with a block 6 for intercepting garbage and floating plants, and the water outlet end is provided with a waterworks intake pipe 9 to communicate with the waterworks 8.

[0051] Select a river-type water source in a town in the plain river network area of ​​the Taihu Lake Basin to carry out the in-situ water quality pretreatment project of the waterworks. Both sides of this river section are erected hard revetments, the water flow velocity is about 0....

Embodiment 2

[0059] This embodiment is an in-situ pretreatment method for water quality in a water source area. The method takes the water intake of a waterworks as an end point, sets waterways in the water source area according to the topography, and sets a photocatalytic purification zone 2 and a combined ecological floating bed purification zone 3 along the waterway. And the aquatic plant purification zone 4, after the in-situ pretreatment is carried out to the in-situ waterworks in the waterway, it is supplied to the waterworks 8 through the waterworks water intake pipe 9, wherein the waterway is formed by the isolation fence 1, and the waterway The water inlet is equipped with a block 6 for intercepting garbage and floating plants. In the waterway, the photocatalytic purification zone 2, the combined ecological floating bed purification zone 3 and the aquatic plant purification zone 4 are combined according to the topography of the water source.

[0060] Wherein, the isolation fence 1 ...

Embodiment 3

[0070] In this embodiment, the distance between the 10 vertical piles is 3m, and the distance between the 12 inclined piles is 6m.

[0071] In the photocatalytic purification zone 2, the distance between the cables 16 is 50cm, and the mounting distance of the photocatalytic material 14 on the cable 16 is 50cm; The catalyst is prepared, the shape of the fiber filler is disc-shaped, and connected in series with ropes; the nano-semiconductor photocatalyst is a mixed semiconductor with a mass ratio of oxide semiconductor and doped oxide semiconductor at a mass ratio of 1:1, and the fiber filler is polypropylene fiber.

[0072] In the combined ecological floating bed purification zone 3, the loading density of biological contact oxidation filler 17 is 25 strips / m 2 , the length is 200cm, and the shape of the biological contact oxidation filler 17 is disc-shaped, and connected in series with ropes. The biological contact oxidation filler 17 is made of polyurethane.

[0073] In the...

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Abstract

The invention relates to a water quality in-situ pre-treatment method in a water source region. According to the method provided by the invention, a water channel is arranged according to a terrain of the water source region by taking a water fetching opening of a water supply plant as an end point, a photocatalytic purification region, a combined ecological floating bed purification region and an aquatic plant purification region are separately arranged along the water channel, and in-situ pretreatment is carried out on an inflow of the water supply plant in the water channel. The water channel is enclosed by isolating barriers, and a block for intercepting garbage and floating plants is arranged at the water inlet end of the water channel. The three purification regions can be combined in adaptation to local conditions. Compared to the prior art, the method provided by the invention effectively couples four in-situ water quality purification technologies: photocatalysis, ecological floating bed, ecological contact oxidation filler and plant repair. The method is simple in structural design, low in material cost, small in interference by construction and operation on the outside world, simple to maintain and manage, free of additional added chemical agents and safe and free of secondary pollution and can be used for effectively improving the inflow water quality of the water supply plant, so that the main water quality indexes are enhanced by at least one grade.

Description

technical field [0001] The invention belongs to the technical field of ecology and environmental protection, and relates to an in-situ water quality pretreatment method for water sources, which is suitable for improving the water quality of polluted surface water sources, landscape water bodies, shallow lakes and slow-flowing channels. Background technique [0002] Surface water bodies such as rivers, lakes and reservoirs adjacent to cities and towns are the main sources of drinking water in most parts of my country. However, due to the long-term excessive intake of domestic sewage, industrial wastewater and agricultural non-point source pollution, these rivers flowing through cities and towns and lakes, reservoirs, ditches and dams at the interface between urban and rural areas are generally eutrophic and black and smelly. Water environment emergencies occur frequently in my country, seriously affecting people's health and social and economic development. The use of technic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCY02W10/37
Inventor 成水平李柱孔令为向东方吴娟代嫣然崔娜欣尹大强
Owner TONGJI UNIV
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