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Efficiency and Cost of Bioecological Rural Wastewater Treatment Powered Almost by Wind and Solar
As the health awareness of rural residents improves, rural wastewater treatment is gradually attracting the attention of residents and researchers. However, due to high operation costs and poor maintenance, an effect of the treatment is not guaranteed. This paper reports a bioecological rural wastewater treatment system using wind and solar complementary power without batteries. First, the climatic conditions in the study area were investigated, and their influence on the power generation system was explored. Second, pollutant removal characteristics were analyzed. In addition, considering a life cycle of 20 years, a life cycle cost analysis was performed, and economic aspects of three operation modes (conventional power, traditional wind–solar complementary power, and a wind–solar complementary system without a battery) were compared. The results indicated that environmental conditions are suitable for wind and solar energy production. Moreover, the energy efficiency utilization rate of the system can reach 77.06%, while the running time can reach 8.73 h. CODcr, NH4 +-N, and total nitrogen were mainly removed in the biological contact oxidation reactor, and total phosphorus was removed in constructed wetlands. The wind–solar complementary system without battery power is the most economical mode, and its economic benefits become increasingly obvious over the life of the system.
The application of renewable energy in decentralized wastewater treatment can achieve lower levels of energy consumption, lower operational costs, and simple maintenance.
Efficiency and Cost of Bioecological Rural Wastewater Treatment Powered Almost by Wind and Solar
As the health awareness of rural residents improves, rural wastewater treatment is gradually attracting the attention of residents and researchers. However, due to high operation costs and poor maintenance, an effect of the treatment is not guaranteed. This paper reports a bioecological rural wastewater treatment system using wind and solar complementary power without batteries. First, the climatic conditions in the study area were investigated, and their influence on the power generation system was explored. Second, pollutant removal characteristics were analyzed. In addition, considering a life cycle of 20 years, a life cycle cost analysis was performed, and economic aspects of three operation modes (conventional power, traditional wind–solar complementary power, and a wind–solar complementary system without a battery) were compared. The results indicated that environmental conditions are suitable for wind and solar energy production. Moreover, the energy efficiency utilization rate of the system can reach 77.06%, while the running time can reach 8.73 h. CODcr, NH4 +-N, and total nitrogen were mainly removed in the biological contact oxidation reactor, and total phosphorus was removed in constructed wetlands. The wind–solar complementary system without battery power is the most economical mode, and its economic benefits become increasingly obvious over the life of the system.
The application of renewable energy in decentralized wastewater treatment can achieve lower levels of energy consumption, lower operational costs, and simple maintenance.
Efficiency and Cost of Bioecological Rural Wastewater Treatment Powered Almost by Wind and Solar
Li, Pengyu (author) / Zheng, Tianlong (author) / Li, Lin (author) / Ma, Yingqun (author) / Zhou, Xiaoqin (author) / Shi, Zhining (author) / Liu, Junxin (author)
ACS ES&T Water ; 1 ; 562-572
2021-03-12
Article (Journal)
Electronic Resource
English
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