以電化學氧法去除工業廢水中氨氮之效率改善;

National Chung Cheng University Institutional Repository > 工學院 > 機械工程學系 > 學位論文 > Item A095B0000Q/216

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Title:	以電化學氧法去除工業廢水中氨氮之效率改善
Authors:	黃昱齊;Huang, Yu-chi
Contributors:	機械工程系研究所
Keywords:	電化學氧化;工業廢水;氨氮;效率;實驗參數
Date:	2017
Issue Date:	2019-07-17
Publisher:	機械工程系研究所
Abstract:	由於當前環保署對於工業排放廢水中氨氮之濃度管制相當嚴格，因此業界有許多去除工業廢水中氨氮的方法，其中電化學氧化法，又稱電解法，是一個新穎的處理含氨氮之工業廢水的方式，其有批次可處理量大、處理速度快、去除率高等優點，但目前國內此技術的發展仍有以下缺點：電解時耗能過大，且成本過高，另外電解後容易產生硝酸根離子等副產物。因此本研究將發展理論模式分別推測出9組的實驗參數，分別改變參數：電解電流10(A)、20(A)、30(A)；加入食鹽濃度0.027、0.032、0.037 M(mol?L^(-1))，接著進行電解廢水去除氨氮實驗決定出最佳的實驗參數。目的是以最佳的電解去除廢水中氨氮實驗參數達到改善目前電化學氧化法去除廢水中氨氮的效率，並且得以符合目前環保署之工業廢水排放標準。本研究以電化學氧化法電解去除某公司之工業廢水中氨氮，廢水中氨氮濃度為178ppm，採最佳參數電解後廢水之氨氮去除率89.8%、廢水硝酸根離子濃度28ppm、電流效率80.1%。 As the current EPA has a very strict standard of ammonia nitrogen concentration from industrial wastewater, so most of factories has plenty ways to remove ammonia nitrogen in industrial wastewater. Electrochemical oxidation, also known as electrolysis, is a novel treatment of industrial wastewater containing ammonia nitrogen. But there are still the following shortcomings in the development of this technology: the electrolysis when the energy consumption is too large, and the cost is too high, the other is easy to produce nitrate after electrolysis, and also has produced high concentration of co-products. Therefore, this study will develop theoretical models to decide the operation parameters of 9 groups, respectively, change the parameters: electrolysis current 10 (A), 20 (A), 30 (A); add salt concentration 0.027,0.032,0.037 M (mol ? L (-1)), followed by electrolysis wastewater removal of ammonia nitrogen experiment to determine the best operation parameters. The purpose of the experiment is to remove ammonia nitrogen from waste water with the best operation parameters to improve the current efficiency of ammonia removal from wastewater by electrochemical oxidation method and to meet the current discharge standard of industrial wastewater of EPA. The concentration of NH3-N in waste water was initially 178ppm. After the electrolysis was done, the removal rate of NH3-N in wastewater was 89.8%, the concentration of co-product, like nitrate ion in wastewater, was 28ppm and the current efficiency was 80.1%.
Appears in Collections:	[機械工程學系] 學位論文

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