[1] Wang Xiaohong, Shao Yuran, Wang Jinghua,. Practice and analysis of recycling non-drinking waterfrom air-condition and reverse-osmosis systeminto rainwater collection system [J]. Journal of Southeast University (English Edition), 2014, 30 (2): 169-174. [doi:10.3969/j.issn.1003-7985.2014.02.006]

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Practice and analysis of recycling non-drinking waterfrom air-condition and reverse-osmosis systeminto rainwater collection system()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

30

Issue:

2014 2

Page:

169-174

Research Field:

Other Disciplines

Publishing date:

2014-06-20

Info

Title:

Practice and analysis of recycling non-drinking waterfrom air-condition and reverse-osmosis systeminto rainwater collection system

Author(s):

Wang Xiaohong;  Shao Yuran;  Wang Jinghua

Architectural Design and Research Institute, Zhejiang University, Hangzhou 310007, China

Keywords:

rainwater collection;  heating;  ventilation and air conditioning condensation water;  precipitation analysis;  reverse-osmosis concentrated water

PACS:

TV213.9

DOI:

10.3969/j.issn.1003-7985.2014.02.006

Abstract:

This paper is based on the rainwater collection project in the retrofit of the Dongyi teaching block in Zhejiang University Xixi Campus. The analysis incorporates the local meteorological data, recycling water utilization, and precipitation adjustment. The rainwater collection system in this program also adds the condensation water from the heating, ventilation and air conditioning(HVAC)system and the concentration from the reverse-osmosis system used for watering greens and supplying waterscapes. By calculating, the quantity of the HVAC condensation water in summer is 3.48 m³/d, and the quantity of the reverse-osmosis concentrated water is 198 to 396 L/d. This method solves the water shortage caused by high evaporation in summer and low precipitation in winter. Supported by empirical monitoring data, the proposed method significantly increases the economic efficiency of the system during the summer period.

References:

[1] Gan Can, Wang Hua. Research of urban rainwater collection and utilization [J]. Shanxi Architecture, 2009, 35(7): 202-203.(in Chinese)
[2] Guo Fengtai. Study on rainwater utilization engineering mode in northern cities of China [J]. Procedia Engineering, 2012, 28: 453-457.
[3] Mi Sihui. Discussion of rainwater collection utilization system[J]. Flood Control and Drainage, 2012, 6(6): 172-175.(in Chinese)
[4] Pan Guoqing, Che Wu. Study on the volume optimization for rainwater collection by storage tank[J]. Water and Wastewater Engineering, 2008, 34(12): 42-47.(in Chinese)
[5] Ministry of Housing and Urban-Rural Development of the People’s Republic of China. GB 50555—2010 Standard for water saving design in civil building [S]. Beijing: China Architecture and Building Press, 2010.(in Chinese)
[6] Ministry of Housing and Urban-Rural Development of the People’s Republic of China. GB 50015—2003 Code for design of building water supply and drainage [S]. Beijing: China Planning Press, 2003.(in Chinese)
[7] Ministry of Construction of the People’s Republic of China. GB 50400—2006 Engineering technical code for rain utilization in building and sub-district [S]. Beijing: China Architecture and Building Press, 2007.(in Chinese)
[8] Liang Renjian. Analysis and application of air-conditioning condensed water reusing technology [J]. Journal of Guangdong Industry Technical College, 2009, 8(2): 13-16.(in Chinese)
[9] Du Anping, Zhang Dongle. Application of reverse-osmosis concentrated water recycling for circulating water[J]. Science and Technology Information, 2010(25): 93.(in Chinese)
[10] Zhang Jianhong, Zhang Jianmei. Green building rainwater collection and water reuse [J]. Pollution Control Technology, 2011, 24(1): 41-44.(in Chinese)

Memo

Memo:

Biography: Wang Xiaohong(1960—), female, senior engineer, 449353165@qq.com.
Citation: Wang Xiaohong, Shao Yuran, Wang Jinghua. Practice and analysis of recycling non-drinking water from air-condition and reverse-osmosis system into rainwater collection system[J].Journal of Southeast University(English Edition), 2014, 30(2):169-174.[doi:10.3969/j.issn.1003-7985.2014.02.006]

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