An appropriate technique for treating rural wastewater by a flow step feed system driven by wind-solar hybrid power

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 水污染控制实验室

	An appropriate technique for treating rural wastewater by a flow step feed system driven by wind-solar hybrid power
	Li, Pengyu; Zheng, Tianlong; Li, Lin; Ma, Yingqun; Sun, Xu; Liu, Junxin
刊名	ENVIRONMENTAL RESEARCH
	2020-08
卷号	187 页码:1-8
关键词	Rural wastewater Biological contact oxidation process Wind-solar hybrid power Flow step feed system Automatic control
ISSN号	0013-9351
英文摘要	Most rural wastewater treatment facilities require aeration equipment to ensure sufficient dissolved oxygen (DO) during processing. Operation and maintenance are costly, and cannot be met in many areas with poor economic levels. This has led to further deterioration of the rural water environment and aroused much attention. This work reports a plug-flow step feed system utilizing wind and solar hybrid energy for rural wastewater treatment. Under certain climatic conditions, the wind energy and solar energy provided complimentary power generation, and an automatic control system (without batteries) was constructed. The corresponding control logic for multi-energy level operation was developed. Furthermore, the power generation efficiency of the system, the pollutant removal, and its mechanism on the bioreactor were also analyzed. According to the monitoring of meteorological conditions, wind and solar resources at the test site were abundant, and the electricity generated by the power generation was sufficient to meet the operational needs of the equipment. Energy efficiency can reach 80.0%. The characteristics of pollutant removal in each process section were studied on spatial and temporal dimensions. Results showed that the wastewater treatment process reached mean removal efficiencies of chemical oxygen demand (CODcr), NH4(+)-N, total nitrogen (TN) and total phosphorus (TP) were 90.2%, 94.3%, 61.4% and 63.1%, respectively. Analyses of microbial community richness and group changes in each anoxic/aerobic reaction chamber in the biofilm reactor showed that the population structure was relatively stable and that there were abundant functional bacteria capable of degrading pollutants in each aerobic and anoxic unit. This system can thus be a more sustainable treatment process than traditional techniques used for rural wastewater treatment, providing a new design approach for low-energy consumption and unattended rural wastewater treatment.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/45015]
专题	生态环境研究中心_水污染控制实验室
推荐引用方式 GB/T 7714	Li, Pengyu,Zheng, Tianlong,Li, Lin,et al. An appropriate technique for treating rural wastewater by a flow step feed system driven by wind-solar hybrid power[J]. ENVIRONMENTAL RESEARCH,2020,187:1-8.
APA	Li, Pengyu,Zheng, Tianlong,Li, Lin,Ma, Yingqun,Sun, Xu,&Liu, Junxin.(2020).An appropriate technique for treating rural wastewater by a flow step feed system driven by wind-solar hybrid power.ENVIRONMENTAL RESEARCH,187,1-8.
MLA	Li, Pengyu,et al."An appropriate technique for treating rural wastewater by a flow step feed system driven by wind-solar hybrid power".ENVIRONMENTAL RESEARCH 187(2020):1-8.