一体化污水处理装置中气提和保温性能试验
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摘要
针对采用气提技术实现回流的一体化污水处理装置,研究了升液管浸没深度和气量对回流量的影响,计算并校核了效率系数η,同时对比了装置不同安装形式的保温效果。结果表明:随着浸没深度和气量的增加,回流量逐渐增大,但气量的增加会对空气利用率产生不利影响。在试验条件下,效率系数η取值为0. 21～0. 60,且与浸没深度h、提升流量Q和空气用量W均呈负相关。相比地上装置,地埋装置具有更佳的保温效果和恒温稳定性,特别是在气温低于0℃的冬季,地埋装置具有明显的保温优越性。
Focusing on the integrated sewage treatment device applying air lift technology to realize reflux,this paper studied the effect of riser tube immersion depth and air consumption on the quantity of reflux. The efficiency coefficient η was calculated and checked,and the heat preservation effect of different installation forms was compared. The results showed that:the quantity of reflux gradually increased with the increase of immersion depth and air consumption,however,the increase of air consumption had an adverse impact on air utilization efficiency. Efficiency coefficient η was in the range of 0. 21 to 0. 60 under test conditions,and also,it was inversely related to immersion depth h,quantity of reflux Q and air consumption W.Compared with over-ground installations,underground installations had better heat preservation effect and constant temperature stability,and underground installations had an obvious heat preservation superiority especially in winter when the air temperature was below 0 ℃.
Focusing on the integrated sewage treatment device applying air lift technology to realize reflux,this paper studied the effect of riser tube immersion depth and air consumption on the quantity of reflux. The efficiency coefficient η was calculated and checked,and the heat preservation effect of different installation forms was compared. The results showed that:the quantity of reflux gradually increased with the increase of immersion depth and air consumption,however,the increase of air consumption had an adverse impact on air utilization efficiency. Efficiency coefficient η was in the range of 0. 21 to 0. 60 under test conditions,and also,it was inversely related to immersion depth h,quantity of reflux Q and air consumption W.Compared with over-ground installations,underground installations had better heat preservation effect and constant temperature stability,and underground installations had an obvious heat preservation superiority especially in winter when the air temperature was below 0 ℃.
引文
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[2]顾霖.吴德礼.樊金红.农村生活污染综合治理模式与技术路线探讨[J].环境工程,2016,34(10):113-117.
[3]高娜.农村生活污水处理技术初探[J].广东化工,2017,44(8):184-185.
[4]陈月芳,樊荣,刘哲,等.一体化农村生活污水处理装置研究进展[J].安徽农业科学,2016,44(9):84-88.
[5]刘旭东,姜凤,冯欣,等.新型一体化装置处理村镇污水试验研究[J].环境工程,2016,34(12):38-42.
[6]冯欣.自然充氧小型一体化污水处理装置运行性能研究[J].环境工程,2016,34(10):35-38.
[7]刘惠敏.气提回流接触氧化一体化技术在农村生活污水处理中的应用研究[D].杭州:浙江工业大学,2014.
[8]林进跃.气提装置在污水处理站中的应用[J].山东工业技术,2015(12):220-221.
[9]王如华,王健,曹伟新,等.气提法在净水厂高浓度污泥排放中的设计与应用[J].给水排水,2017,43(6):35-37.
[10]王建辉,孙凤,辛思雨,等.温度对强生物除磷系统中聚磷菌和聚糖菌竞争影响[J].吉林师范大学学报(自然科学版),2018,39(3):100-106.
[11]王丹丹,罗清威.移动床-膜生物法餐饮废水深度处理[J].环境工程,2015,33(12):19-23.
[12]北京市市政工程设计研究总院.给水排水设计手册(第5册)城镇排水[M]. 2版.北京:中国建筑工业出版社,2004.
[13]杜联盟.气提装置在污水处理中的应用[J].城市建设理论研究(电子版),2015,5(1):682-683.
[14]张姿,汤兵.活性污泥系统中微生物菌群及其功能特性的研究进展[J].工业水处理,2015,35(3):5-9.
[15]宋悦,魏亮亮,赵庆良,等.活性污泥胞外聚合物的组成与结构特点及环境行为[J].环境保护科学,2017,43(2):35-40.