ANALYSIS OF WATER RECLAMATION AND REUSE IN JAPAN

LU Huimin; CHEN Zhuo; NI Xinye; WU Yinhu; HU Hongying

doi:10.13205/j.hjgc.202303032

Volume 41 Issue 3

Mar. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(3): 237-242

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LU Huimin, CHEN Zhuo, NI Xinye, WU Yinhu, HU Hongying. ANALYSIS OF WATER RECLAMATION AND REUSE IN JAPAN[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(3): 237-242. doi: 10.13205/j.hjgc.202303032

Citation:

LU Huimin, CHEN Zhuo, NI Xinye, WU Yinhu, HU Hongying. ANALYSIS OF WATER RECLAMATION AND REUSE IN JAPAN[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(3): 237-242. doi: 10.13205/j.hjgc.202303032

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ANALYSIS OF WATER RECLAMATION AND REUSE IN JAPAN

doi: 10.13205/j.hjgc.202303032

LU Huimin¹,
CHEN Zhuo²,
NI Xinye³,
WU Yinhu²,
HU Hongying^{1,2
,
,}

1. Research Institute for Environmental Innovation (Suzhou) Tsinghua, Suzhou 215163, China;
2. Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), Beijing Laboratory for Environmental Frontier Technologies, School of Environment, Tsinghua University, Beijing 100084, China;
3. China Academy of Urban Planning and Design, Beijing 100044, China

Received Date: 2022-04-23
Available Online: 2023-05-26
Publish Date: 2023-03-01

Abstract

Abstract

The situation of water resources, water supply and use, sewage treatment and recycling in Japan were systematically summarized and analyzed. Overall, the whole country of Japan has relatively adequate water, but some areas, like the Kanto coast, Kitakyushu and the East Sea, are short of water. The combined annual per capita water consumption of Japan remains stable at around 630 m³, which is about 1.5 times that of China. The total amount of sewage treatment in Japan is 14.64 billion m³, and the average cost of sewage treatment is 143.3 yen/m³ in 2018. The total amount of reclaimed water utilization in Japan is stable at around 200 million m³ per year, and the utilization rate of reclaimed water is below 1.5%. Large cities, like Tokyo, have a significantly higher utilization rate of centralized reclaimed water of 3.2%, obviously higher than the national average value. Japan uses reclaimed water in a wide range of ways, and the classified statistics of reclaimed water are meticulous and comprehensive, including flushing, landscape environment, snow melting and other nine uses. Reclaimed water is mainly used to supplement surface water, water for ornamental landscape and snow melting, accounting for 78.0% of the total reclaimed water consumption. The experience and methods of Japan in the statistics, collection and classification of the information on wastewater water treatment and reclaimed water utilization can provide important references for standardized management and development of reclaimed water utilization in China.
- Japan,
- wastewater treatment,
- water reuse,
- water shortage,
- development trend

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References(23)

References

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