""2014"For varying wastewater quality and the need of environmen
「""2014"For varying wastewater quality and the need of environmen」於資料集「EPQSummary_WaterQualityProtection」由單位「行政院環境保護署」的郭先生所提供，聯繫電話是02-2311-7722 EXT.2399，最近更新時間為：2022-01-15 01:13:47。 欄位Project Title的內容是"" ， 欄位Project Subject的內容是"For varying wastewater quality and the need of environmental protection, in-situ analysis of chemical oxygen demand (COD) has become more and more important. Also, although the in-situ analysis of metal ions have been developed for decades, there are still many problems. Thus, one objective of this project is to continue the study of previous year and to review related literatures and techniques. For the in-situ analysis of metal ions, there are techniques based on colorimetry, ionic exchange electrodes, UV-Vis spectrophotometry, and anodic stripping voltammetry. Though ionic exchange electrode have been used widely for in-situ monitoring of metal ions, the speciation of metal ions cannot be obtained and there is no electrode for several metal ions, such as mercury and arsenic. The anodic stripping voltammetry has found to be a promising technique for many rare elements. The main goal of this project is to develop a SWCNTs/ TiO2 composite modified electrode for the analysis of COD via linear scanning voltammetry (LSV). Defunctionalization has been conducted via heat treatment and neutralization by alkaline solution. The surface physical and chemical properties of SWCNTs/TiO2 composite treated by various conditions have been investigated. It is determined that the heat treatment at 300℃is the most suitable defunctionlization condition. The scan rates and pH values of modeled and real wastewater have been determined. Maybe because the compounds which have contribution to COD are small, therefore, it is found that the scan rate has no significant influence for the oxidation peak potential. It is also found that the correlation between oxidation peak current and COD concentration changes as the COD concentration increases. Analysis of KHP solution by defunctionalized SWCNT/TiO2 modified GCE electrode has shown that the stability and the sensitivity LSV method are improved. The defunctionlized SWCNT/ TiO2 modified GCE electrode is then further used to examine the response of peak current to the wastewater. It is found that the peak current are in good relationship with the COD obtained by standard method when the wastewater is treated (or about to discharge). However, LSV method may not be suitable for raw wastewater before any treatment due to the complicated composition and the size of the organic pollutants." ， 欄位Project Year的內容是2014 ， 欄位Organizer的內容是"Environmental Analysis Laboratory" ， 欄位Executive Unit的內容是"國立中央大學環境工程研究所" ， 欄位Reporting download URL的內容是https://epq.epa.gov.tw/project/filedownload.aspx?fid=87121 ， 欄位Publish Date的內容是20150501 。
Project Title
""
Project Subject
"For varying wastewater quality and the need of environmental protection, in-situ analysis of chemical oxygen demand (COD) has become more and more important. Also, although the in-situ analysis of metal ions have been developed for decades, there are still many problems. Thus, one objective of this project is to continue the study of previous year and to review related literatures and techniques. For the in-situ analysis of metal ions, there are techniques based on colorimetry, ionic exchange electrodes, UV-Vis spectrophotometry, and anodic stripping voltammetry. Though ionic exchange electrode have been used widely for in-situ monitoring of metal ions, the speciation of metal ions cannot be obtained and there is no electrode for several metal ions, such as mercury and arsenic. The anodic stripping voltammetry has found to be a promising technique for many rare elements. The main goal of this project is to develop a SWCNTs/ TiO2 composite modified electrode for the analysis of COD via linear scanning voltammetry (LSV). Defunctionalization has been conducted via heat treatment and neutralization by alkaline solution. The surface physical and chemical properties of SWCNTs/TiO2 composite treated by various conditions have been investigated. It is determined that the heat treatment at 300℃is the most suitable defunctionlization condition. The scan rates and pH values of modeled and real wastewater have been determined. Maybe because the compounds which have contribution to COD are small, therefore, it is found that the scan rate has no significant influence for the oxidation peak potential. It is also found that the correlation between oxidation peak current and COD concentration changes as the COD concentration increases. Analysis of KHP solution by defunctionalized SWCNT/TiO2 modified GCE electrode has shown that the stability and the sensitivity LSV method are improved. The defunctionlized SWCNT/ TiO2 modified GCE electrode is then further used to examine the response of peak current to the wastewater. It is found that the peak current are in good relationship with the COD obtained by standard method when the wastewater is treated (or about to discharge). However, LSV method may not be suitable for raw wastewater before any treatment due to the complicated composition and the size of the organic pollutants."
Project Year
2014
Organizer
"Environmental Analysis Laboratory"
Executive Unit
"國立中央大學環境工程研究所"
Reporting download URL
Publish Date
20150501
「""2014"For varying wastewater quality and the need of environmen」所屬的資料集：「EPQSummary_WaterQualityProtection」的其他資料
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"Department of Water Quality Protection"
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"Department of Water Quality Protection"
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"107 Water Pollution Source Control and Water Environment Improvement Project in Yilan County"
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2018
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2021
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"Department of Water Quality Protection"
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2019
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"Department of Water Quality Protection"
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"Supervise and Examination Project for Water Pollution Control Fee Collection Operation"
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2020
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2017
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"Environmental Protection Bureau of Yi-Lan County"
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"2016 Plan of Changhua County’s Implementation of Water Pollution Source Inspection, Water Pollution
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"In order to improve the water quality of rivers within the jurisdiction and enhance the environment
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2016
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"Environmental Protection Bureau Changhua County"
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"Proceeding Continuous Water Monitoring System(CWMS) and Sewerage System Management Project"
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2016
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2017
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