《环境工程学报》获“2017年度科学传播特殊贡献单位”荣誉称号    《环境工程学报》启用DOI通知设为首页|加入收藏
利用太阳能驱动的一体化氧化沟的运行方式
Operation modes of integrated oxidation ditch utilizing solar energy as power for treatment of rural wastewater
投稿时间:2012-04-28  修订日期:2012-05-10
DOI:
中文关键词:  太阳能  光伏发电  农村分散污水处理  一体化氧化沟
英文关键词:solar energy  photovoltaic  rural wastewater treatment  integrated oxidation ditch
基金项目:国家自然科学基金资助项目(51138009);国家科技支撑计划项目(2009BAC57B02)
作者单位
韩昌福 中国科学院生态环境研究中心, 北京 100085 
刘俊新 中国科学院生态环境研究中心, 北京 100085 
梁瀚文 中国科学院生态环境研究中心, 北京 100085 
郭雪松 中国科学院生态环境研究中心, 北京 100085 
摘要点击次数: 4856
全文下载次数: 5934
中文摘要:
      污水处理的高能耗和新能源利用已引起人们的关注,本文根据太阳光照强度的周期变化和农村污水昼夜排放量悬殊的特征,提出了一种新型的利用蓄电池太阳能光伏系统驱动的污水生物处理系统,可有效降低太阳能光伏系统的成本。生物反应器是一个双沟式一体化氧化沟。按照启动的用电设备的数量,一体化氧化沟具有5种运行方式。在不同的运行方式下,一体化氧化沟的内沟和外沟具有不同的功能,其中运行方式3到运行方式5对污染物去除效率最高。采用阶梯型电量输出模式,可以充分利用太阳能,并保障一体化氧化沟的高效运行时间。在160 d的连续运行实验中,COD、氨氮、总氮和总磷的平均去除率分别为87.8%、98.4%、68.7%和80.3%。证明蓄电池太阳能光伏系统驱动污水生物反应器处理农村分散污水是可行的。
英文摘要:
      High energy consumption of wastewater treatment and application of new energy have caused an increasing concern. According to the period changes of solar radiation intensity and the characteristics of rural wastewater with large difference on discharge flow rate in day and night, an innovative biological wastewater treatment system utilizing solar energy as power was developed, which consists of an integrated oxidation ditch with double channels and a photovoltaic (PV) system without storage battery. The cost of the PV system can be reduced because of without storage battery. According to the number of the facilities used, five operation modes of the integrated oxidation ditch were devised in this paper. The outer and inner channels of the integrated oxidation ditch have diverse function for wastewater treatment under each operation mode, in which the highest efficiencies of pollutants removal in the integrated oxidation ditch were obtained at mode 3 to mode 5. A step power output mode was used to utilize the solar energy as good as possible and ensure efficient operation of the integrated oxidation ditch. During operation period of 160 days, the average removal efficiencies of 87.8% COD, 98.4% NH4+-N, 68.7% TN and 80.3% TP were obtained in the integrated oxidation ditch, respectively. This result demonstrates that it is feasible to drive the facilities for rural wastewater treatment by the PV system without storage battery.
下载PDF全文  HTML   查看/发表评论  下载PDF阅读器