Grey Water Quantity and Quality Assessment (Case Study: Isfahan University Dormitories)

Document Type : Research Paper

Authors

Assistant Professor, Department of Civil Engineering, Faculty of Civil Engineering and Transportation, University of Isfahan, Isfahan, Iran.

Abstract

In this study, the quantity and quality of Grey Water (GW) were surveyed in the dormitories of Isfahan University by the aim of its reuse. For this purpose, the non-potable water consumption (bathing and washing clothes) was monitored in both boys and girls dormitories, where its variations were evaluated daily in the academic semesters (October-November and May-June) alongside its quality. Results showed that the average daily GW production of students is 111 liters per capita per day, in which by considering 4400 residents in the dormitories, this wastewater can supply at least 10% of the water required for the irrigation of campus green areas. It was also indicated that the daily average grey water production of girls' dormitories per capita was significantly higher about 20% than boys’. In addition, the daily grey water production per capita of students on weekends was significantly higher than the other days about 16%. Based on these data, the daily and hourly peak coefficients of grey water production were about 1.16 and 1.25, respectively. The quality analysis of discharged grey water showed that the average concentrations of BOD, COD and TSS were 65, 142 and 52 mg/L, respectively, which has a relatively low biodegradability and suspended solids.

Keywords

References

 
Abdel-Kader, A.M., (2013), "Studying the efficiency of grey water treatment by using rotating biological contactors system", Journal of King Saud University, Engineering Sciences, 25(2), 89-95, https://doi.org/10.1016/j.jksues.2012.05.003.
Abu Ghunmi, L., Zeeman, G., Fayyad, M., and van Lier, J.B., (2011), "Grey water biodegradability", Biodegradation, 22(1), 163–174, https://doi.org/10.1007/s10532-010-9385-5.
Al-Husseini, T.H., Al-Anbari, R.H., and Al-Obaidy, A.H.M.J., (2021), "Greywater environmental management: A review", IOP Conference Series: Earth and Environmental Science, 779(1), 1-11, https://doi.org/10.1088/1755-1315/779/1/012100. 
Al-Jayyousi, O.R., (2003), "Greywater reuse: Towards sustainable water management", Desalination, 156(1-3), 181-192, https://doi.org/10.1016/S0011-9164(03)00340-0.
Albalawneh, A., and Chang, T.-K., (2015), "Review of the greywater and proposed greywater recycling scheme for agricultural irrigation reuses", International Journal of Research, GRANTHAALAYAH, 3(12), 6-35, https://doi.org/10.29121/granthaalayah.v3.i12.2015.2882.
Anuja, J., Darshan, B., Saraswathi, G., and Meyyappan, N., (2021), "Study on reuse of grey water, A review", Journal of Physics: Conference Series, 1979(1), 1-7, https://doi.org/10.1088/1742-6596/1979/1/012004. 
APHA, (2017), Standard methods for the examination of water and wastewater, 23rd Edition, Washington D.C., U.S.A: Water Environment Federation (WEF), American Public Health Association (APHA), American Water Work Association (AWWA).
Barzegar, G., Wu, J., and Ghanbari, F., (2019), "Enhanced treatment of greywater using electrocoagulation/ozonation: Investigation of process parameters", Process Safety and Environmental Protection, 121(January), 125-132, https://doi.org/10.1016/j.psep.2018.10.013.
Baykal, B.B., (2019), "Recycling/reusing grey water and yellow water (Human urine): Motivations, perspectives and reflections into the future", Desalination and Water Treatment, 172(October 2018), 212-223,  https://doi.org/10.5004/dwt.2019.24667.
Delhiraja, K., and Philip, L., (2020), "Characterization of segregated greywater from Indian households: Part A: Physico-chemical and microbial parameters", Environmental Monitoring and Assessment, 192(7), 428, https://doi.org/10.1007/s10661-020-08369-0. 
Diao, L., (2020), "Application of MBR technology in schoolyard Ddomestic sewage treatment’, IOP Conference Series: Earth and Environmental Science, 526(1), 1-7, https://doi.org/10.1088/1755-1315/526/1/012002. 
Du, J., and Pan, W., (2021), "Examining energy saving behaviors in student dormitories using an expanded theory of planned behavior", Habitat International, 107(September 2020), 102308,  https://doi.org/10.1016/j.habitatint.2020.102308.
Elhegazy, H., and Eid, M.M.M., (2020), "A state-of-the-art-review on grey water management: A survey from 2000 to 2020s", Water Science and Technology, 82(12), 2786-2797, https://doi.org/10.2166/wst.2020.549.
Friedler, E., and Alfiya, Y., (2010), "Physicochemical treatment of office and public buildings greywater", Water Science and Technology, 62(10), 2357-2363, https://doi.org/10.2166/wst.2010.499.
Ghaitidak, D.M., and Yadav, K.D., (2013), "Characteristics and treatment of greywater-a review", Environmental Science and Pollution Research, 20(5), 2795-2809, https://doi.org/10.1007/s11356-013-1533-0.
Gholipour, A., and Stefanakis, A.I., (2021), "A full-scale anaerobic baffled reactor and hybrid constructed wetland for university dormitory wastewater treatment and reuse in an arid and warm climate", Ecological Engineering, 170(July), 106360, https://doi.org/10.1016/j.ecoleng.2021.106360.
Giresunlu, E., and Beler Baykal, B., (2016), "A case study of the conversion of grey water to a flush water source in a Turkish student residence hall", Water Supply, 16(6), 1659-1667, https://doi.org/10.2166/ws.2016.078.
Jamshidi, S., and Dehghani, H., (2021), "Water literacy evaluation in urban society (Case study: Isfahan City)", Journal of Environmental Studies, 46(4), 684-702.
Kabiri, M., Akbarpour, A., and Akbari, M., (2021), "Evaluation of the efficiency of a gray water treatment system based on aeration and filtration", Water Reuse, 11(3), 361-372, https://doi.org/10.2166/wrd.2021.084.
Kurniawan, S., Yuliwati, E., Ariyanto, E., Morsin, M., Sanudin, R., and Nafisah, S., (2021), "Greywater treatment technologies for aquaculture safety: Review’, Journal of King Saud University, Engineering Sciences, 35(5), 327-334, https://doi.org/10.1016/j.jksues.2021.03.014. 
Kwabena Ntibrey, R.A., Kuranchie, F.A., and Gyasi, S.F., (2020), "Antimicrobial and coagulation potential of Moringa oleifera seed powder coupled with sand filtration for treatment of bath wastewater from public senior high schools in Ghana", Heliyon, 6(8), e04627, https://doi.org/10.1016/j.heliyon.2020.e04627.
Lu, E., Ai, Y., Davis, A., Straathof, J., Halloran, K., Hull, N., Winston, R., Weir, M.H., Soller, J., Bohrerova, Z., Oglesbee, M., and Lee, J., (2022), "Wastewater surveillance of SARS-CoV-2 in dormitories as a part of comprehensive university campus COVID-19 monitoring", Environmental Research, 212(PE), 113580,  https://doi.org/10.1016/j.envres.2022.113580.
Nagarkar, M., Keely, S.P., Brinkman, N.E., and Garland, J.L., (2021), "Human- and infrastructure-associated bacteria in greywater", Journal of Applied Microbiology, 131(5), 2178-2192, https://doi.org/10.1111/jam.15118.
Rakesh, S.,  Ramesh, D.P., Murugaragavan, D.R., Avudainayagam, D.S., and Karthikeyan, D.S., (2020), "Characterization and treatment of grey water: A review", International Journal of Chemical Studies, 8(1), 34-40, https://doi.org/10.22271/chemi.2020.v8.i1a.8316.
Shamabadi, N., Bakhtiari, H., Kochakian, N., and Farahani, M., (2015), "The investigation and designing of an onsite grey water treatment systems at Hazrat-e-Masoumeh university, Qom, Iran", Energy Procedia, 74(August), 1337-1346,  https://doi.org/10.1016/j.egypro.2015.07.780. 
Siddique, M., Semerjian, L., Bettayeb, M.A., Al-Sadoon, Z., Al Jaberi, B.H., Eltarabishi, F., and AlSane, S.I., (2021), "Water conservation and management practices at the university of Sharjah to achieve sustainability excellence", Journal of Sustainability Perspectives, 1(2), 86-93, https://doi.org/10.14710/jsp.2021.11746.
Smith, E., and Bani-Melhem, K., (2012), "Grey water characterization and treatment for reuse in an arid environment", Water Science and Technology, 66(1), 72-78, https://doi.org/10.2166/wst.2012.167.
Tusiime, A., Solihu, H., Sekasi, J., and Mutanda, H.E., (2022), "Performance of lab-scale filtration system for grey water treatment and reuse", Environmental Challenges, 9(August), 100641, https://doi.org/10.1016/j.envc.2022.100641.
Valentukeviciene, M., and Rynkun, G., (2016), "Water reuse possibilities at students dormitories", Annual Set The Environment Protection, 18(August), 920-929.
Yulistyorini, A., Puspasari, A.K., Mujiyono, and Sari, A.A., (2019), "Removal of BOD and TSS of student dormitory greywater using vertical sub-surface flow constructed wetland of ipomoea aquatica’, IOP Conference Series: Materials Science and Engineering, 515(1), 1-6, https://doi.org/10.1088/1757-899X/515/1/012056. 
 
Journal of Water and Wastewater Science and Engineering
Volume 8, Issue 4
January 2024
Pages 11-21

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History

  • Receive Date: 24 February 2023
  • Revise Date: 28 April 2023
  • Accept Date: 10 May 2023

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