农村典型河道劣Ⅴ类水体治理熵增抑制效果评估  

EVALUATION OF ENTROPY INCREASE INHIBITION EFFECT OF TREATMENT OF INFERIOR V-CLASS WATER BODIES IN TYPICAL RURAL RIVER COURSES

作　　者：顾永钢 于磊 张书函 孟庆义 GU Yonggang;YU Lei;ZHANG Shuhan;MENG Qingyi(Beijing Water Science and Technology Institute,Beijing 100048,China;Beijing Key Laboratory of Watershed Water Environment and Ecological Technology,Beijing 100048,China;Beijing Key Laboratory of Urban Water Cycle and Sponge City Technology,Beijing 100048,China)

机构地区：[1]北京市水科学技术研究院,北京100048 [2]流域水环境与生态技术北京市重点实验室,北京100048 [3]城市水循环与海绵城市技术北京市重点实验室,北京100048

出　　处：《环境工程》2024年第2期128-134,共7页Environmental Engineering

基　　金：国家水体污染控制与治理科技重大专项“城区景观河流水系连通与北方地区典型黑臭河道治理关键技术研究与示范”(2017ZX07103-001);北京市财政项目“北京市污水治理实施成效综合评估”。

摘　　要：随着城市化快速推进,农村污水处理设施建设严重滞后,部分污水直接溢流入河所造成的水体污染及环境恶化问题日益突出。控源截污并收集处理是劣Ⅴ类水体源头治理的最重要手段。研究分析了农村典型河道水体劣Ⅴ类成因,对农村污水处理设施进行扩容及升级改造,并引入熵的理念解析了有机物、氮磷削减对水环境的影响及减排效果。800 m^(3)/d规模农村污水处理设施升级改造到1800 m^(3)/d后可有效改善典型河道水体环境,减少的年熵增为9.80×10^(7) kJ/K。河流水环境、水生态生态系统稳定需要熵增-逆熵增过程中保持相对平衡,熵增评估对污水厂升级改造及溢流污染治理有一定的现实意义。在国家碳排放、碳中和、劣Ⅴ类水体治理的大背景下,熵概念下的可持续污水处理有望会成为新技术评估的发展方向。The issue of water pollution and environmental deterioration caused by insufficient processing capacity sewage treatment in rural areas is a critical problem that requires immediate attention.The current rate of urbanization has led to severe neglect of the construction of sewage treatment facilities in rural areas,causing the direct injection of untreated sewage into rivers.Source control,pollution interception,collection,and treatment are essential methods for controlling the pollution of Inferior V-class water bodies.In this paper,we conducted an in-depth analysis on the csuse of the inferior V-class water bodies in typical rural river water,expanded and upgraded rural sewage treatment facilities,and introduced the concept of entropy,to analyze the impact of organic matter,nitrogen,and phosphorus reduction on water environment and emission reduction effect.After upgrading rural sewage treatment facilities from 800 m^(3)/d to 1800 m^(3)/d,the water environment of typical river channels was effectively improved,and the annual entropy increase was reduced by 9.80×10^(7) kJ/K.The stability of the river water environment and water ecosystem depends on maintaining a relative balance between entropy increase and reverse entropy increase.Evaluating the increase in entropy has practical significance for upgrading and renovating sewage plants and controlling the effect of overflow pollution.In the current context of carbon emissions,carbon neutrality,and the treatment of Inferior V-class water bodies,the sustainable treatment of sewage under the concept of entropy will be excepted to be a development focus of new technology evaluation.

关 键 词：劣Ⅴ类水体 溢流污水 控源截污 污水处理设施改造 水环境熵增 抑制效果 评估 

分 类 号：X52[环境科学与工程—环境工程]