Unlock instant, AI-driven research and patent intelligence for your innovation.

A treatment method for black and odorous water

A technology for black and odorous water bodies and water bodies, applied in chemical instruments and methods, botanical equipment and methods, biological water/sewage treatment, etc., can solve problems such as ineffective treatment, low dissolved oxygen in black and odorous water bodies, and large scale , to achieve the effect of overcoming poor governance effect, overcoming low governance efficiency, and reducing nitrogen and phosphorus content

Active Publication Date: 2018-04-10
ENN SCI & TECH DEV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the black and odorous water body is generally treated by two methods, one is the aeration method, and the aeration method is to increase the oxygen content in the water body by introducing air or oxygen into the black and odorous water body. When using this method to treat black and odorous water bodies, a large amount of oxygen-containing gas needs to be introduced, and the scale is huge. At the same time, this method cannot reduce the concentration of nitrogen and phosphorus in the water body. Therefore, it cannot fundamentally solve the problem of water body pollution. Black and odorous problem; the other is the method of planting plants, through which the nitrogen and phosphorus in the black and odorous water body can be absorbed, but in this method, the oxygen produced by the photosynthesis of the herb is released into the air through the leaves, which is difficult to solve The problem of low dissolved oxygen in black and odorous water, therefore, the treatment effect is not obvious and the treatment efficiency is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A treatment method for black and odorous water
  • A treatment method for black and odorous water
  • A treatment method for black and odorous water

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0072] Hereinafter, the embodiments of the present invention illustrate the present invention through examples and experimental examples. These examples are merely examples for specifically describing the present invention, and those skilled in the art will understand that the scope of the present invention is not limited by these examples and experimental examples.

[0073] In order to objectively illustrate the technical effects of the embodiments of the present invention, a certain black and odorous water body in Langfang City is taken as an example, wherein the total nitrogen content in the water body is 15 mg / L, the total phosphorus content is 7 mg / L, and the COD is 200 mg / L. L, the oxygen content in the water body is lower than 2mg / L, and all the indicators of the water body exceed the V-level water standard of China's national water bath eutrophication standard, which is inferior V-level water.

Embodiment 1

[0075] Tributary rivers are set beside the river, and 3 lengths of 50 meters and a width of 3 meters are arranged at intervals in the middle of the tributary. Set at 50 meters, set isolation gauze at the entrance and exit of each microalgae free culture area, the spherical microalgae are free in the microalgae free culture area, and the black and smelly water in the river channel flows through The tributary channel cultured the microalgae in the microalgae free culture area for 7 days.

experiment example

[0077] Detect the nitrogen, phosphorus and oxygen content in the water after 7 days of cultivation;

[0078] Result: The total nitrogen content in the water flowing through the outlet of the tributary channel was reduced to 1.0mg / L, the total phosphorus content was reduced to 0.01mg / L, and the oxygen content was maintained at 10-15mg / L. Nutrition standard IV water, water quality has been significantly improved.

[0079] As can be seen from the above, the microalgae are cultivated by diverting the black and odorous water body through the microalgae culture area, so that the microalgae consume the nitrogen and phosphorus in the black and odorous water body to perform photosynthesis to generate oxygen, and the oxygen dissolves in the black and odorous water body Oxygen-enriched water is formed in the middle of the river, and then the oxygen-enriched water is diverted into the river, which can increase the dissolved oxygen in the black and odorous water in the river, reduce the ni...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
widthaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of water treatment, in particular to a treatment method for black and odorous water. The nitrogen and phosphorus content in the black and odorous water body can be reduced, and the oxygen content in the black and odorous water body can be increased, so that the water body can be effectively treated fundamentally. The invention overcomes the defects of poor treatment effect and low treatment efficiency of black and odorous water bodies in the prior art. The embodiments of the present invention provide a treatment method for black and odorous water, the black and odorous water flows along the river course, comprising: step 1) draining the black and odorous water as a culture solution to the microalgae cultivation area; step 2) using the black and odorous water The odorous water body cultivates the microalgae in the microalgae cultivation area, and the oxygen generated by the photosynthesis of the microalgae is dissolved in the black and odorous water body to form an oxygen-enriched water body; step 3) diverting the oxygen-enriched water body back to the river channel.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a treatment method for black and odorous water. Background technique [0002] With the continuous development of industrialization, the discharge of industrial wastewater and domestic water makes the river water suffer from organic pollution and become a eutrophic water body. Microorganisms consume oxygen in this water body and reproduce in large numbers, so that the oxygen in the water body is exhausted, causing the water body to be hypoxic. In the anoxic water body, organic pollutants are anaerobically decomposed to form a large amount of sulfide, which makes the water body black and smelly, and the hydrogen sulfide gas in the black odorous water body causes air pollution. [0003] In the prior art, the black and odorous water body is generally treated by two methods, one is the aeration method, and the aeration method is to increase the oxygen content in the water body by introd...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32A01G33/00C02F101/16C02F101/10
CPCA01G33/00C02F3/322C02F2101/105C02F2101/16
Inventor 张凯程小雪蔡忠贞朱振旗
Owner ENN SCI & TECH DEV