沼液还田区水质检测及改进的内梅罗指数法评价  

Water Quality Detection and Evaluation with Improved Nemerow Index Method in the Area of Returning Biogas Slurry to the Field

作　　者：陈义超 占礼钢 李朝锋 章庆丰 戴瑶瑶 黄强 CHEN Yichao;ZHAN Ligang;LI Chaofeng;ZHANG Qingfeng;DAI Yaoyao;HUANG Qiang(Jiangxi Zhenghe Environmental Engineering Limited Company,Jiangxi 333000,China)

机构地区：[1]江西正合环保工程有限公司,江西南昌333000

出　　处：《北京石油化工学院学报》2025年第1期61-64,共4页Journal of Beijing Institute of Petrochemical Technology

摘　　要：为考察沼液还田对其水质的影响,选择江西省新余、赣州、高安和鹰潭4个地市的沼液还田区域为研究地点,并在施肥期对其地表水和地下水进行采样分析。结果表明:6个地表水中部分样点的COD、总氮、氨氮、硝酸盐和总磷质量浓度超过了地表水Ⅴ类标准限值。5个地下水样点中,只有1个样点的COD质量浓度超过了地下水Ⅲ类标准限值。所有水样的重金属都没有超标。用改进的内罗梅指数法对其水质进行评价,地表水6个样点中,总氮改进的内梅罗指数最大,均大于1,其属于Ⅴ类水体,水质极差。地下水5个样点中,氨氮改进的内梅罗指数最大,在0.379~0.382之间,属于Ⅲ类水体,水质较好。地表水对地下水的水质没有明显影响。To investigate the impact of returning biogas slurry to the field on its water quality,four cities in Jiangxi Province,namely Xinyu,Ganzhou,Gao an,and Yingtan,were selected as the study areas for sampling and analyzing surface and groundwater during the fertilization period in August 2023.The results showed that the concentrations of COD,total nitrogen,ammonia nitrogen,nitrate,and total phosphorus in some of the 6 surface water samples exceeded the Class V standard limits for surface water.Among the 5 groundwater sampling points,only 1 point had a COD concentration exceeding the Class III standard limit for groundwater.The heavy metals in surface water and groundwater have not exceeded the standard.The improved Nemerow index method was used to evaluate its water quality.Among the six surface water samples,the improved Nemerow index for total nitrogen was the highest,all greater than 1.It belongs to water body V and has extremely poor water quality.Among the five sampling points of groundwater,the improved Nemerow index of ammonia nitrogen is the highest,ranging from 0.379 to 0.382,belonging to Class III water body with good water quality.Surface water has no significant impact on the quality of groundwater.

关 键 词：沼液还田 水质检测与评价 改进内罗梅指数法 

分 类 号：X82[环境科学与工程—环境工程]