| 引用本文: | CAI Xunjiang,ZENG Caiming,CHEN Yang,TAN Xiaohui,MO Daqi,ZHANG Chuanbao,LONG Peisheng,LI Lixia,DENG Jiajie.Application Conditions and Methods of Automatic Monitoring Technology for Groundwater Quality in Coastal Area of the Pearl River Delta[J].Environmental Monitoring and Forewarning,2024,16(6):60~65 |
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| 摘要: |
| 针对珠三角滨海地区地下水含有高氯化物、高铁离子等的水质特征，通过开展多次自动仪器与实验室手工比对监测，验证了氨氮、耗氧量（CODMn法）、锰、氯化物等水质参数自动监测分析方法在地下水中的适用性。结果表明，使用蒸馏预处理+水杨酸分光光度法自动仪器监测该区域地下水中的氨氮，其监测结果与实验室手工监测结果有较好的一致性，潜水井相对误差为2.15%～22.7%，承压水井相对误差为2.82%～9.45%；使用高锰酸钾氧化-光度滴定法自动仪器监测该区域地下水潜水中的耗氧量，其监测结果与实验室手工监测结果一致性较好，相对误差为9.17%～12.9%；使用高碘酸盐法自动仪器监测该区域地下水中的锰，其监测结果与实验室手工监测结果有较好的一致性，潜水井相对误差为5.78%～23.2%，承压水井相对误差为8.94%～35.1%；使用离子选择性电极法自动仪器监测该区域地下水中的氯离子，其监测结果与实验室手工监测结果均有较好的一致性，潜水井相对误差为3.01%～29.4%，承压水井相对误差为0.61%～9.95%。该研究可为建立统一、规范的地下水水质自动监测技术体系提供经验和参考。 |
| 关键词: 地下水 水质 自动监测技术 适用方法 珠三角滨海地区 |
| DOI：DOI：10.3969/j.issn.1674-6732.2024.06.010 |
| 分类号:X832 |
| 基金项目:2022年广东省打好污染防治攻坚战专项（粤环函〔2021〕683号） |
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| Application Conditions and Methods of Automatic Monitoring Technology for Groundwater Quality in Coastal Area of the Pearl River Delta |
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CAI Xunjiang1， ZENG Caiming1， CHEN Yang2， TAN Xiaohui1， MO Daqi1， ZHANG Chuanbao2， LONG Peisheng2， LI Lixia1， DENG Jiajie1
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1.Guangdong Provincial Dongguan Ecological Environment Monitoring Station， Dongguan，Guangdong 523000，China; 2.Lihe Technology（Hunan）Co.，Ltd.， Changsha， Hunan 410000， China
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| Abstract: |
| According to the water quality characteristics of groundwater containing perchloride and ferric ions in coastal area of the Pearl River Delta， the applicability of automatic monitoring for water quality parameters such as ammonia nitrogen， oxygen consumption（CODMn）， manganese and chloride in groundwater was verified by comparison the results of automatic instruments with manual methods. The results show that the monitoring results of ammonia nitrogen in groundwater by automatic instrument of distillation pretreatment and salicylic acid spectrophotometry are in good agreement with those of manual methods. The relative errors of phreatic wells are 2.15%~22.7%， and those of confined wells are 2.8%~9.45%. The monitoring results of oxygen consumption in phreatic water by automatic instrument using permanganate titration are in good agreement with those of manual method. The relative errors of phreatic wells are 9.17%~12.9%. The monitoring results of manganese in groundwater by automatic instrument using periodate titration are in good agreement with those of manual method. The relative errors of phreatic wells are 5.78%~23.2%， and those of confined wells are 8.94%~35.1%. The monitoring results of manganese in groundwater by automatic instrument uisng ion selective electrode method are in good agreement with those of manual method. The relative errors of phreatic wells are 3.01%~29.4%， and those of confined wells are 0.61%~9.95%. It can provide experience and reference for establishing a unified and standardized groundwater quality automatic monitoring technical system. |
| Key words: Groundwater Water quality Automatic monitoring technology Applicable method Coastal area of Pearl River Delta |
