Evidence map›Paper›PMID 31533232›Full record

ArticleInternational journal of environmental research and public health2019

Experimental Investigation on the Relationship Between COD Degradation and Hydrodynamic Conditions in Urban Rivers.

Lei Tang, Xiangdong Pan, Jingjie Feng, Xunchi Pu, Ruifeng Liang, Ran Li, Kefeng Li

Abstract read
In one paragraph

Article in International journal of environmental research and public health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Lei TangState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China. tanglei961@163.com.
Xiangdong PanState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China. PanXiangdong0506@163.com.
Jingjie FengState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China. fengjingjie@scu.edu.cn.
Xunchi PuState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China. puxunchi@scu.edu.cn.
Ruifeng LiangState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China. liangruifeng@scu.edu.cn.
Ran LiState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China. liran@scu.edu.cn.
Kefeng LiState Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China. kefengli@scu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Due to extensive pollution and the relatively weak flow replacement in urban rivers, determining how to fully utilize the self-purification abilities of water bodies for water quality protection has been a complex and popular topic of research and social concern. Organic pollution is an important type of urban river pollution, and COD (chemical oxygen demand) is one of the key pollution factors. Currently, there is a lack of research on the relationship between COD degradation and the flow characteristics of urban rivers. In this paper, COD degradation experiments were conducted in an annular flume with Jinjiang River water at controlled flow velocities and the COD degradation coefficients under different hydraulic conditions were analyzed. A good correlation was observed between the degradation coefficient and hydraulic conditions. According to dimensional analysis, the relationship between the COD degradation coefficient and hydraulic conditions such as the flow velocity, water depth, Reynolds number (

Indexed as

Biological Oxygen Demand AnalysisWater QualityChinaCitiesHydrodynamicsRiversWater Pollution, ChemicalCODdegradation coefficientdimensional analysishydraulic conditionsurban rivers

Identifiers

PMID31533232
PMCPMC6765830

What OpenQuestion holds

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LicenceCC BY
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.