修正Streeter-Phelps模型及COD变化模型在三峡库区香溪河的应用

Hui Peng, Wei Yao, Ping Huang
{"title":"修正Streeter-Phelps模型及COD变化模型在三峡库区香溪河的应用","authors":"Hui Peng, Wei Yao, Ping Huang","doi":"10.1109/ICBBE.2010.5517979","DOIUrl":null,"url":null,"abstract":"As an often used physical model with good theoretical and practical values, Streeter--Phelps model has been widely used to research water quality at present. However, in some special water areas the utility of Streeter--Phelps Model suffers limitations because confirming reaeration coefficient often comes from tests in rivers with fast water flow speed rather than considering the wavy effects. Furthermore, in practical research in Xiangxi River in Three Gorges Reservoir Area the changing rule of COD appears abnormity. In some water areas far from pollution source the value of COD changing with time doesn't accord with exponential attenuation but slightly sways in a certain value. This phenomenon can not be explained by former modified Streeter--Phelps models. After research it indicates that through modifying the reaeration coefficient good calculation results will be obtained. Similarly, the changing rule of COD not only can be made clear but also can provide scientific evidence to further studying rules of pollution ejection and sediment motion.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"42 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Application of Modified Streeter-Phelps Model and COD Changing Model to Xiangxi River in Three Gorges Reservoir Area\",\"authors\":\"Hui Peng, Wei Yao, Ping Huang\",\"doi\":\"10.1109/ICBBE.2010.5517979\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"As an often used physical model with good theoretical and practical values, Streeter--Phelps model has been widely used to research water quality at present. However, in some special water areas the utility of Streeter--Phelps Model suffers limitations because confirming reaeration coefficient often comes from tests in rivers with fast water flow speed rather than considering the wavy effects. Furthermore, in practical research in Xiangxi River in Three Gorges Reservoir Area the changing rule of COD appears abnormity. In some water areas far from pollution source the value of COD changing with time doesn't accord with exponential attenuation but slightly sways in a certain value. This phenomenon can not be explained by former modified Streeter--Phelps models. After research it indicates that through modifying the reaeration coefficient good calculation results will be obtained. Similarly, the changing rule of COD not only can be made clear but also can provide scientific evidence to further studying rules of pollution ejection and sediment motion.\",\"PeriodicalId\":6396,\"journal\":{\"name\":\"2010 4th International Conference on Bioinformatics and Biomedical Engineering\",\"volume\":\"42 1\",\"pages\":\"1-4\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-06-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2010 4th International Conference on Bioinformatics and Biomedical Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICBBE.2010.5517979\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICBBE.2010.5517979","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3

摘要

Streeter—Phelps模型作为一种常用的物理模型,具有较好的理论和实用价值,目前在水质研究中得到了广泛的应用。然而,在一些特殊水域,Streeter—Phelps模型的实用性受到限制,因为确认再生系数通常来自于水流速度快的河流试验,而不是考虑波浪效应。此外,在三峡库区湘溪河的实际研究中,COD的变化规律也出现了异常。在远离污染源的部分水域,COD随时间的变化值不符合指数衰减,而是在某一数值上略有波动。这一现象不能用先前修正的Streeter- Phelps模型来解释。研究表明,通过对再生系数的修正,可以获得较好的计算结果。同样,COD的变化规律不仅可以明确,而且可以为进一步研究污染喷射和泥沙运动规律提供科学依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Application of Modified Streeter-Phelps Model and COD Changing Model to Xiangxi River in Three Gorges Reservoir Area
As an often used physical model with good theoretical and practical values, Streeter--Phelps model has been widely used to research water quality at present. However, in some special water areas the utility of Streeter--Phelps Model suffers limitations because confirming reaeration coefficient often comes from tests in rivers with fast water flow speed rather than considering the wavy effects. Furthermore, in practical research in Xiangxi River in Three Gorges Reservoir Area the changing rule of COD appears abnormity. In some water areas far from pollution source the value of COD changing with time doesn't accord with exponential attenuation but slightly sways in a certain value. This phenomenon can not be explained by former modified Streeter--Phelps models. After research it indicates that through modifying the reaeration coefficient good calculation results will be obtained. Similarly, the changing rule of COD not only can be made clear but also can provide scientific evidence to further studying rules of pollution ejection and sediment motion.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信