摘要
电耗是污水处理厂能源消耗中最大的部分,对于已建污水处理厂,进水水量、水质是能耗的关键影响因素。以东北某城市污水处理厂2018~2020年日均进水水量、水质指标与耗电量等实测数据为研究对象,提出并划分了进水量、进水COD和进水氨氮等级等进水指标。经统计分析得出:1)D污水处理厂进水量、进水COD、进水NH_(3)-N变化范围较大,但均在特定等级下存在最高出现频率;单位水量耗电量和削减单位COD耗电量变化范围也较大,但是也存在主导的耗电量水平;同时进水量、进水水质及耗电量水平随月份变化也较大。2)单位水量耗电量随进水量等级的提高呈降低趋势,而单位水量耗电量随进水COD和进水氨氮等级的提高略有增加;削减单位COD耗电量随进水COD等级的提高呈降低趋势,而削减单位COD耗电量随进水量增加呈不规则变化,随着进水氨氮的增加略有增加。3)当进水量等级处于频数最高的等级时,单位水量耗电量受进水COD的变化影响较大,随着进水COD等级的提高,单位水量耗电量也相应增加;而削减单位COD耗电量则随进水COD等级提高而减小,随着进水氨氮等级提高而略微增加。4)当进水COD等级处于高频数等级下,单位水量耗电量和削减单位COD耗电量均受进水量等级的影响大;当进水氨氮等级处于高频数等级下,单位水量耗电量受进水量影响大,而削减单位COD耗电量受进水COD等级影响较大。5)单位水量耗电量和削减单位COD耗电量均受季节影响较大,夏季耗电量处于较低水平,而冬季耗电量处于较高水平。因此,进水量、进水COD和月份是污水厂耗电量的主要影响指标,且不同的状态下,耗电量的主要影响因素不同。
Electricity consumption is the largest part of the energy consumption of sewage treatment plants.For established sewage treatment plants,the amount of influent wastewater and wastewater quality are the key factors affecting energy consumption.Taking the measured data of daily average influent water volume,water quality index and power consumption from 2018 to 2020 in a city sewage treatment plant in Northeast China as the research object,the influent wastewater such as influent wastewater level,influent COD level and influent ammonia nitrogen level are proposed and divided.According to statistical analysis,it is concluded as follows.Firstly,D sewage treatment plant influent water,influent COD,and influent ammonia nitrogen vary widely,but they all have the highest frequency of occurrence under specific levels;It is also larger,but there is also a dominant power consumption level;at the same time,the water intake,water quality and power consumption level also vary greatly with the month.Secondly,The power consumption per unit of water volume shows a decreasing trend with the increase of the influent level,while the power consumption per unit of water increases slightly with the increase of the influent COD and the influent ammonia nitrogen level;the reduction of the unit COD power consumption with the increase of the influent COD level The increase shows a decreasing trend,while the reduction of the unit COD power consumption shows irregular changes with the increase of the water inflow,and slightly increases with the increase of the influent ammonia nitrogen.Thirdly,When the water inflow level is at the highest frequency level,the power consumption per unit of water is greatly affected by the change of the influent COD.With the increase of the influent COD level,the power consumption per unit of water also increases accordingly;while reducing the power consumption per unit COD The amount decreases with the increase of the influent COD level,and slightly increases with the increase of the influent ammonia nitrogen
作者
汪雪格
俞双
董艳红
穆光熠
曲红
边德军
Wang Xuege;Yu Shuang;Dong Yanhong;Mu Guangyi;Qu Hong;Bian Dejun(School of Water Resources and Environmental Engineering,Changchun Institute of Technology,Changchun 130012,China;China Northeast Municipal Engineering Design and Research Institute Co.,Ltd,Changchun 130021,China)
出处
《环境工程》
CAS
CSCD
北大核心
2023年第S01期190-195,200,共7页
Environmental Engineering
基金
长春市科技计划项目(21ZGM12)
国家自然科学基金项目(51878067)
关键词
单位水量耗电量
削减单位COD耗电量
进水量等级
进水COD等级
进水氨氮等级
electricity consumption per unit of water
reduce electricity consumption per unit of COD
water intake grade
inlet water COD grade
inlet water ammonia nitrogen grade
