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Black and odorous water dissolved oxygen enhancement method and oxygen dissolution method and equipment

A kind of equipment and oxygen technology, which is applied in the field of black and odorous water dissolved oxygen enhancement method and oxygen dissolution, and can solve the problems of high energy consumption and irregular maintenance

Active Publication Date: 2019-03-29
南京宇行环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual reoxygenation method adopts the form of mechanical aeration, etc., which consumes a lot of energy and requires irregular maintenance

Method used

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  • Black and odorous water dissolved oxygen enhancement method and oxygen dissolution method and equipment
  • Black and odorous water dissolved oxygen enhancement method and oxygen dissolution method and equipment
  • Black and odorous water dissolved oxygen enhancement method and oxygen dissolution method and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: Combining figure 1 , a method for enhancing dissolved oxygen in black and odorous water, comprising the following steps:

[0040] 1) Use the pressure enhancement device 111 to extract river water from the downstream 101 of the target river 100;

[0041] 2) mix the river water through step 1) with the oxygen in the gaseous oxygen generating device 113 in the oxygen dissolving device 112, the mixing reaches saturation, and all the oxygen is dissolved in the water without forming bubbles;

[0042] 3) The oxygen-dissolved river water in step 2) is sent to the upstream 102 of the target river channel.

[0043] In the embodiment, the river water is extracted from the downstream 101 of the river, and after being treated, it is sent to the upstream 102 of the river for circulating water; the oxygen is mixed with the river water by setting the gas oxygen generating equipment, so as to strengthen the self-purification ability of the river and accelerate the degradatio...

Embodiment 2

[0044] Example 2: Combining figure 2 , as described in Embodiment 1, a method for enhancing dissolved oxygen in a black and odorous water body, step 2) before mixing the river water and oxygen, the river water is passed through the water quality purification equipment 115 to remove some pollutants and suspended solids in the water body.

[0045] In the embodiment, water quality purification equipment 115 is installed on the river bank to actively remove soluble COD, SS and TP, thereby rapidly improving the water quality of the river channel and achieving ex-situ purification.

[0046] In a preferred embodiment: the water quality purification equipment 115 is one of a gravity sedimentation purification device, a magnetic separation purification device, and a membrane separation purification device.

Embodiment 3

[0047] Embodiment 3: a kind of method for enhancing dissolved oxygen in black and odorous water as described in embodiment 1 or 2, in step 1) take water from the upper part of the river downstream 101 of the target river 100; in step 3) send the river water to the target The lower part of the upstream 102 of the river channel; the upper part and the lower part are defined by the depth of the river channel: the upper part is away from the silt end at the bottom of the river bed; the lower half is the silt end near the bottom of the river bed. Water is taken from the upper part of the river to prevent the silt at the bottom of the river from being pumped to block the equipment; water is only sent to the lower half of the river so that the oxygen-rich water can fully contact and react with the river.

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Abstract

The invention discloses a black and odorous water body dissolved oxygen enhancing method and an oxygen dissolving method and device. The black and odorous water body dissolved oxygen enhancing method includes the following steps that firstly, a pressure enhancement device is used for pumping river water from the downstream of a target river way; secondly, the river water obtained in the first step and oxygen in a gas oxygen generation device are mixed in an oxygen dissolving device till saturation is reached, all oxygen is dissolved in the water, and no bubbles are formed; thirdly, the river water where oxygen is dissolved in the second step is conveyed to the upstream of the target river way. The method achieves comprehensive treatment with the five technologies of point source control, flowing water circulation, displacement purification, ecological enhancement and ecological restoration.

Description

technical field [0001] The invention relates to the technical field of water treatment and oxygenation, in particular to a method for enhancing dissolved oxygen in black and odorous water, an oxygen dissolution method and equipment. Background technique [0002] Black and odorous water body: First, it is defined as the water body in the built-up area of ​​the city, that is, the black and odorous water body around the residents; second, it is defined from two aspects of "black" and "smelly", that is, it presents unpleasant colors and ( or) water bodies emitting unpleasant odors, the main basis is the sensory judgment of the people. [0003] The urban black and odorous water remediation work is highly systematic and involves a wide range of areas. The "Water Pollution Prevention and Control Action Plan" ("Water Ten Measures") promulgated and implemented by the State Council clearly states that the urban people's government is the main body responsible for remediating urban bl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/02
CPCC02F3/02C02F2103/007Y02W10/10
Inventor 徐海涛沈凯周长城张亚平
Owner 南京宇行环保科技有限公司
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