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当前位置: 首页 > 文章 > 双波长紫外光谱法检测猪场污水实验研究 中国农机化学报 2015,36 (3) 145-148
Position: Home > Articles > Research on swine wastewater detection based on dual wavelength ultraviolet spectroscopy Journal of Chinese Agricultural Mechanization 2015,36 (3) 145-148

双波长紫外光谱法检测猪场污水实验研究

作  者：
张颖萍;董前民;张章源;滕斌;泮进明
单  位：
杭州市农业局;浙江大学生物系统工程与食品科学学院;中国计量学院
关键词：
化学需氧量;双波长;紫外光谱法;吸光度;猪场污水
摘  要：
为研究水污染程度的快速检测方法,以污水中的化学需氧量(COD)为检测指标,通过使用双波长紫外光检测法对5种水样(湖水水样、水沟水样、猪场污水1、猪场污水2、猪场污水3)吸光度进行检测,结合标准曲线预测COD浓度,并与标准方法测量的COD值进行比对。结果表明,大部分水样的有机物在紫外波段处具有很强的吸收性,在254nm附近处溶液浓度和吸光度有很好的线性关系,相关系数都大于0.9,在546nm处,并非每种水样都有吸光度值;湖水水样、猪场污水2、猪场污水3的COD浓度值相对误差均在5%左右,水沟水样和猪场污水1的浓度值相对误差在10%左右。研究表明,双波长紫外光检测法可实现对水污染程度的快速检测,为自动化在线检测提供数据支持以及技术准备。
译  名：
Research on swine wastewater detection based on dual wavelength ultraviolet spectroscopy
作  者：
Zhang Yingping;Dong Qianming;Zhang Zhangyuan;Teng Bin;Pan Jinming;China Jiliang University,Zhejiang Province Key Laboratory of Modern Measurement Technology and Instrument;Hangzhou Agricultural Bureau;College of Biosystems Engineering and Food Science,Zhejiang University;
关键词：
Chemical oxygen demand(cod);;Dual wavelength;;Ultraviolet spectroscopy;;Absorbance;;Swine wastewater
摘  要：
To study the method for rapid detection of water pollution,chemical oxygen demand(COD)in five kinds of water samples(the water from lake,water from the ditch,Swine wastewater 1,Swine wastewater 2,and Swine wastewater 3)were tested using dual wavelength ultraviolet spectroscopy method.The COD concentrations were predicted in combination with the standard curves.The COD values obtained were compared with those values based on standard method.The results show that there is strong absorption in ultraviolet region for organics in most kinds of water.Good linear relationship between concentration and absorption near 254 nm and the correlation coefficient is more than 0.9.however,at 546 nm,not all kinds of water has absorption.The relative errors of COD concentration are about 5% for water samples from lake,from Swine wastewater 2and Swine wastewater 3.For water samples from the ditch and Swine wastewater 1,the values were about 10%.Research shows that,in the range of allowable error,dual wavelength ultraviolet detection method can realized the rapid detection of water pollution;provide data support and technical preparation for automation online detection in the future.

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