AN EXPLORATORY RESEARCH ON ONLINE MONITORING METHOD FOR RURAL DOMESTIC SEWAGE

CHEN An-yao; LUO An-cheng; LIANG Zhi-wei; LIN Qiang; JIA Rui-jie; PING Shao-wei; DU Ping

doi:10.13205/j.hjgc.202108031

Volume 39 Issue 8

Jan. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(8): 227-233

CHEN An-yao, LUO An-cheng, LIANG Zhi-wei, LIN Qiang, JIA Rui-jie, PING Shao-wei, DU Ping. AN EXPLORATORY RESEARCH ON ONLINE MONITORING METHOD FOR RURAL DOMESTIC SEWAGE[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(8): 227-233. doi: 10.13205/j.hjgc.202108031

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CHEN An-yao, LUO An-cheng, LIANG Zhi-wei, LIN Qiang, JIA Rui-jie, PING Shao-wei, DU Ping. AN EXPLORATORY RESEARCH ON ONLINE MONITORING METHOD FOR RURAL DOMESTIC SEWAGE[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(8): 227-233. doi: 10.13205/j.hjgc.202108031

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AN EXPLORATORY RESEARCH ON ONLINE MONITORING METHOD FOR RURAL DOMESTIC SEWAGE

doi: 10.13205/j.hjgc.202108031

College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China

Received Date: 2020-04-10
Available Online: 2022-01-18

Abstract

Abstract

Flow is one of the important indicators for online monitoring of rural sewage treatment facilities. Based on the conductive characteristics of rural domestic sewage, this study explored a new method for online monitoring the flow of rural domestic sewage. The designed online flow monitoring setup was mainly divided into two parts, a PAP metering tank and a conductivity level gauge (CLG). The PAP metering tank could convert the flow data measurement into liquid level data measurement. The CLG was made up by a measuring electrode and a reference electrode. The study found that the setup had the best performance when it was powered by a 400 Hz frequency AC source and branches of both the measuring electrode, and the reference electrode were connected in series with a 10 kΩ resistor. After laboratory calibration, the average relative error of the CLG could achieve 3.49%. The median measurement error was ±0.3 cm and the measurement range was 2.1~19.2 cm. After application of online flow monitoring setup, it was found that the daily flow data monitored by the prototype and other flow meters were significantly correlated at 0.01 level (both sides). Therefore, the method put forward by this study has good feasibility in actual application process and can realize remote online flow monitoring.
- rural domestic sewage,
- flow,
- online monitoring,
- conductivity level gavge (CLG)

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References

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