TY - JOUR
T1 - Efficiency and Cost of Bioecological Rural Wastewater Treatment Powered Almost by Wind and Solar
AU - Li, Pengyu
AU - Zheng, Tianlong
AU - Li, Lin
AU - Ma, Yingqun
AU - Zhou, Xiaoqin
AU - Shi, Zhining
AU - Liu, Junxin
N1 - Publisher Copyright:
© 2020 American Chemical Society.
PY - 2021/3/12
Y1 - 2021/3/12
N2 - 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.
AB - 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.
KW - LCC
KW - automatic control
KW - bioecological treatment system
KW - rural wastewater
KW - wind−solar hybrid power
UR - https://www.scopus.com/pages/publications/85130008953
U2 - 10.1021/acsestwater.0c00100
DO - 10.1021/acsestwater.0c00100
M3 - 文章
AN - SCOPUS:85130008953
SN - 2690-0637
VL - 1
SP - 562
EP - 572
JO - ACS ES and T Water
JF - ACS ES and T Water
IS - 3
ER -
