CN111008910A - Rural black and odorous water body identification and judgment method - Google Patents

Rural black and odorous water body identification and judgment method Download PDF

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Publication number
CN111008910A
CN111008910A CN201911330640.8A CN201911330640A CN111008910A CN 111008910 A CN111008910 A CN 111008910A CN 201911330640 A CN201911330640 A CN 201911330640A CN 111008910 A CN111008910 A CN 111008910A
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black
water body
odorous water
identification
rural
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赵天亮
罗惠云
张玲
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Hunan Architectural Design Institute Ltd
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Hunan Architectural Design Institute Ltd
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Abstract

The invention relates to a rural black and odorous water body identification and judgment method, which comprises the following steps: step one, defining a responsibility main body; step two, primary identification; step three, when the recognition result in the step two is disputed, performing water quality detection; and when the recognition result in the step two is not disputed, taking the recognition result as a judgment result. The method is based on the method with public comments as the main part and water quality detection as the auxiliary part, the identification and judgment of the black and odorous water body are carried out, the judgment method and the process are simple and effective, the identification and judgment of the rural black and odorous water body are realized, and the blank of the identification and judgment method of the rural black and odorous water body is filled.

Description

Rural black and odorous water body identification and judgment method
Technical Field
The invention relates to the technical field of black and odorous water body judgment, in particular to a rural black and odorous water body identification and judgment method.
Background
The existing black and odorous water body identification and judgment mostly adopts a remote sensing technology, namely, the reflectivity of a specific wave band of a water body is obtained through a remote sensing image technology, so that corresponding parameter values are calculated to identify the black and odorous water body and judge the grade of the black and odorous water body.
For example, the invention patent of publication No. 109374537a discloses a method and a device for identifying urban black and odorous water, which utilizes the remote sensing reflectivity of the blue light wave band and the remote sensing reflectivity of the red light wave band of a point to be identified on the water surface to calculate the interpolation reflectivity of the point to be identified on the water surface in the green light wave band; calculating a grading index of the black and odorous water body according to the remote sensing reflectivity of the green light wave band of the point to be identified on the water surface, the interpolation reflectivity obtained by calculation and the remote sensing reflectivity of the red light wave band; and judging whether the point to be identified on the water surface is the black and odorous water body or not according to the black and odorous water body grading index, and judging the grade of the black and odorous water body when the point to be identified on the water surface is the black and odorous water body.
The method has limitations in identifying and judging the black and odorous water body by the remote sensing technology, images and spectral characteristics of the surface of the water body cannot really and effectively reflect the degree of water body pollution, and specific parameter values of characteristic pollution indexes of the black and odorous water body, such as ammonia nitrogen, oxidation-reduction potential, dissolved oxygen and transparency, cannot be obtained by the remote sensing technology.
In addition, the invention is directed at the identification and determination technology of urban black and odorous water bodies, the rural black and odorous water bodies are mostly small micro water bodies which are distributed in ditches, streams, ponds and the like of villages, and the urban black and odorous water bodies have the characteristics of poor liquidity, weak self-purification, small scale, large quantity and the like.
Disclosure of Invention
In order to solve the problem that characteristic indexes of water pollution cannot be really and effectively reflected in the existing black and odorous water body identification and judgment technology, the invention provides a method suitable for rural black and odorous water body identification and judgment.
The technical scheme adopted by the invention for solving the technical problems is as follows: the rural black and odorous water body identification and judgment method comprises the following steps:
step one, defining a responsibility main body;
step two, primary identification: adopting a public comment mode to preliminarily identify whether the water body is a black and odorous water body;
step three, when the recognition result in the step two is disputed, performing water quality detection; and when the recognition result in the step two is not disputed, taking the recognition result as a judgment result.
In a preferred embodiment of the method for identifying and determining the rural black and odorous water body provided by the invention, the responsibility subject of the first step is specifically as follows: the black and odorous water body of the built-up area of the villages and towns is identified and judged by a village and township organization, and the black and odorous water body of the villages is identified and judged by a village and township organization.
In a preferred embodiment of the method for identifying and determining the rural black and odorous water body provided by the invention, the second step is specifically as follows: public comments are carried out in the form of questionnaires, the effective quantity of the questionnaires in each water body is 30-50 parts, and the questionnaires are residents and merchants within the influence range of the black and odorous water body.
In a preferred embodiment of the method for identifying and determining the rural black and odorous water body provided by the invention, specific survey objects are as follows: and residents and merchants within 1 kilometer of the peripheral radius of the black and odorous water body or within 2 kilometers of the local downwind side of the highest frequency from the black and odorous water body.
In a preferred embodiment of the method for identifying and determining the rural black and odorous water body, in the second step, the identification level includes mild black and odorous water and severe black and odorous water; wherein:
if the number of people with the problem of black or odor accounts for more than 60% of the number of the inquired people in the questionnaire, the questionnaire identifies the person as black and odorous water;
in the questionnaire, the proportion of the number of people in the water body with the odor severity or the color abnormity degree of more than 60 percent and the proportion of the number of people with the odor severity and the color abnormity degree of more than 30 percent are recognized as the severe black and odorous water body, otherwise, the water body can be recognized as the mild black and odorous water body.
In a preferred embodiment of the method for identifying and determining the rural black and odorous water body, if the effective number of the questionnaires is less than 30, the number of the households of all residents and merchants in the influence range is not less than 60%.
In a preferred embodiment of the method for identifying and determining the rural black and odorous water body provided by the invention, the water quality detection in the third step takes dissolved oxygen and transparency as indexes for graded evaluation of the black and odorous water body.
Compared with the prior art, the rural black and odorous water body identification and judgment method provided by the invention has the beneficial effects that: the method is based on the method with public comments as the main part and water quality detection as the auxiliary part, the identification and judgment of the black and odorous water body are carried out, the judgment method and the process are simple and effective, the identification and judgment of the rural black and odorous water body are realized, and the blank of the identification and judgment method of the rural black and odorous water body is filled.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a flow chart of the rural black and odorous water body identification and determination method provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the method for identifying and determining the rural black and odorous water body includes the following steps:
step S1, defining responsibility subject: the black and odorous water body of the built-up area of the villages and towns is identified and judged by a village and township organization, and the black and odorous water body of the villages is identified and judged by a village and township organization.
Step S2, preliminary identification: adopting a public comment mode to preliminarily identify whether the water body is a black and odorous water body;
the effective quantity of questionnaires of each water body is 30-50 parts by public comments in the form of questionnaires, and the questionnaires are residents and commercial tenants in the influence range of the black and odorous water body; the specific survey objects are: residents and merchants within 1 kilometer of the peripheral radius of the black and odorous water body or within 2 kilometers of the local downwind side of the highest frequency from the black and odorous water body;
the recognition level includes mild black odor and severe black odor; wherein:
if the number of people with the problem of black or odor accounts for more than 60% of the number of the inquired people in the questionnaire, the questionnaire identifies the person as black and odorous water;
in the questionnaire, the proportion of the number of people in the water body with the odor severity or the color abnormity degree of more than 60 percent and the proportion of the number of people with the odor severity and the color abnormity degree of more than 30 percent are recognized as the severe black and odorous water body, otherwise, the water body can be recognized as the mild black and odorous water body.
If the effective number of the questionnaires is less than 30, the number of the effective number of the questionnaires is not less than 60% of the number of all residents and merchants in the influence range.
Step S3, when the recognition result in the step II is disputed, performing water quality detection; and when the recognition result in the step two is not disputed, taking the recognition result as a judgment result.
Preferably, the water quality detection takes Dissolved Oxygen (DO) and transparency as indexes for grading evaluation of the black and odorous water body.
In consideration of the current characteristics of rural black and odorous water bodies and the economic and technical conditions of rural areas, Dissolved Oxygen (DO) and transparency are selected as grading evaluation indexes of the black and odorous water bodies, and the grading standards and the determination method are shown in the following table.
Characteristic index (Unit) Mild black odor Severe black odor Measurement method Remarks for note
Dissolved oxygen (mg/L) 0.2～2.0 <0.2 Electrochemical process In situ assay
Transparency (cm) 25～10 <10 Black and white disk method or type method In situ assay
In principle, the number of detection points of each water body is not less than 3, in 2 physical and chemical indexes of a certain detection point, more than 60% of data of 1 index or more than 30% of data of 2 indexes reach the grade of 'severe black and odor', the detection point is regarded as 'severe black and odor', otherwise, the detection point is regarded as 'mild black and odor';
more than 3 continuous detection points are regarded as 'heavy black and odorous', and the area between the detection points is regarded as 'heavy black and odorous';
more than 60% of the detection points of the water body are considered as 'severe black and odorous', and the whole water body is considered as 'severe black and odorous'.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (7)

1. A rural black and odorous water body identification and judgment method is characterized by comprising the following steps: the method comprises the following steps:
step one, defining a responsibility main body;
step two, primary identification: adopting a public comment mode to preliminarily identify whether the water body is a black and odorous water body;
step three, when the recognition result in the step two is disputed, performing water quality detection; and when the recognition result in the step two is not disputed, taking the recognition result as a judgment result.
2. The rural black and odorous water body identification and determination method according to claim 1, characterized in that: the responsibility subject of the first step is specifically as follows: the black and odorous water body of the built-up area of the villages and towns is identified and judged by a village and township organization, and the black and odorous water body of the villages is identified and judged by a village and township organization.
3. The rural black and odorous water body identification and determination method according to claim 1, characterized in that: the second step is specifically as follows: public comments are carried out in the form of questionnaires, the effective quantity of the questionnaires in each water body is 30-50 parts, and the questionnaires are residents and merchants within the influence range of the black and odorous water body.
4. The rural black and odorous water body identification and determination method according to claim 3, characterized in that: the specific survey objects are: and residents and merchants within 1 kilometer of the peripheral radius of the black and odorous water body or within 2 kilometers of the local downwind side of the highest frequency from the black and odorous water body.
5. The rural black and odorous water body identification and determination method according to claim 3, characterized in that: in the second step, the identification level comprises light black odor and severe black odor; wherein:
if the number of people with the problem of black or odor accounts for more than 60% of the number of the inquired people in the questionnaire, the questionnaire identifies the person as black and odorous water;
in the questionnaire, the proportion of the number of people in the water body with the odor severity or the color abnormity degree of more than 60 percent and the proportion of the number of people with the odor severity and the color abnormity degree of more than 30 percent are recognized as the severe black and odorous water body, otherwise, the water body can be recognized as the mild black and odorous water body.
6. The rural black and odorous water body identification and determination method according to claim 3, characterized in that: if the effective number of the questionnaires is less than 30, the number of the effective number of the questionnaires is not less than 60% of the number of all residents and merchants in the influence range.
7. The rural black and odorous water body identification and determination method according to claim 1, characterized in that: and in the water quality detection in the third step, dissolved oxygen and transparency are used as indexes for grading evaluation of the black and odorous water body.
CN201911330640.8A 2019-12-20 2019-12-20 Rural black and odorous water body identification and judgment method Pending CN111008910A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112903945A (en) * 2021-02-26 2021-06-04 珠江水利委员会珠江水利科学研究院 Urban black and odorous water body identification method based on conventional water quality parameters

Citations (1)

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Publication number Priority date Publication date Assignee Title
CN106874948A (en) * 2017-02-08 2017-06-20 武汉海卓科科技有限公司 A kind of black smelly water automatic identification and appraisal procedure

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
CN106874948A (en) * 2017-02-08 2017-06-20 武汉海卓科科技有限公司 A kind of black smelly water automatic identification and appraisal procedure

Non-Patent Citations (3)

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Title
林培: "《城市黑臭水体整治工作指南》解读", 《生态城市建设》 *
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马越: "海绵城市考核监测体系涉水核心指标的评价分析方法探讨", 《净水技术》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112903945A (en) * 2021-02-26 2021-06-04 珠江水利委员会珠江水利科学研究院 Urban black and odorous water body identification method based on conventional water quality parameters
CN112903945B (en) * 2021-02-26 2022-02-22 珠江水利委员会珠江水利科学研究院 Urban black and odorous water body identification method based on conventional water quality parameters

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Application publication date: 20200414