Real Greywater Treatment by Using Submerged Membrane Bioreactor

Abstract

In this study, a submerged type membrane bioreactor was used to determine the removal performance and treatability of greywaters originated from real life. The pollutant parameters such as chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP) concentrations were studied. The membrane unit immersed in the aeration tank was an ultrafiltration module with a mean pore size of 0.03 µm. This membrane system was operated for 25 days in continuous mode at a transmembrane pressure interval of 140-280 mbar. The MLSS concentration of the bioreactor was in the range of 2000-3000 mg/L during the continuous MBR treatment period. The flux of the membrane in this period was in the range of 29-62 L/m2d. Average values of COD, TN and TP removal efficiencies were found to be 96, 73 and 64%, respectively. The results obtained in these studies were compared with discharge standards in legislations. Effluent COD concentration was below the discharge limits, while TN and TP concentrations were high but close to the limit values. In addition, if reuse of treated wastewater for irrigation is aimed, it is considered that the reuse of wastewater will be appropriate in the direction of parameters examined in this study.

Keywords

• COD Removal,Membrane Bioreactor,Nutrient Removal,Ultrafiltration Membrane

BATIK ULTRAFİLTRASYON MEMBRAN BİYOREAKTÖRÜ İLE GERÇEK GRİ SU ARITIMI

Öz

Bu çalışma kapsamında, batık tip bir membran biyoreaktör (MBR) sistemi, gerçek ortamdan elde edilen gri suyun arıtılabilirliğini ve giderim performansını belirlemek için kullanılmıştır. Kimyasal oksijen ihtiyacı (KOİ), toplam azot (TN) ve toplam fosfor (TP) gibi kirlilik parametreleri çalışmada kullanılmıştır. Bu çalışmada havalandırma tankına daldırılmış olan membran ünitesi, 0,03 µm ortalama gözenek boyutuna sahip olan bir ultrafiltrasyon modülüdür. Bu membran sistemi 140-280 mbar düzeyindeki bir transmembran basınç aralığında sürekli konfigürasyonda 25 gün boyunca işletilmiştir. Biyoreaktördeki askıda katı madde konsantrasyonu, sürekli konfigürasyondaki MBR arıtım süreci boyunca 2000-3000 mg/L aralığında değişmiştir. Bu periyottaki membran akısı, 29 ile 62 L/m2.gün aralığındadır. KOİ, TN ve TP parametrelerindeki giderim verimlilikleri için ortalama değerler sırasıyla %96, %73 ve %64 şeklinde tespit edilmiştir. Bu çalışmalar boyunca elde edilen sonuçlar, yönetmeliklerde yer alan ilgili standartlar ile karşılaştırılmıştır. Çıkış suyundaki KOİ konsantrasyonunun deşarj limitlerinin altında olduğu, TN ve TP konsantrasyonlarının ise deşarj limitlerinin üzerinde ancak bu değerlere yakın oldukları bulunmuştur. Ayrıca sulama amaçlı yeniden kullanım amaçlandığı takdirde, bu çalışmada incelenen parametreler doğrultusunda suyun tekrar kullanımının uygun olacağı değerlendirilmektedir.

Anahtar Kelimeler

• KOİ Giderimi,Membran Biyoreaktör,Besi Maddesi Giderimi,Ultrafiltrasyon Membranı

References

1. AATTUT, 2010, Atıksu Arıtma Tesisleri Teknik Usuller Tebliği, Türkiye.
2. 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, Cilt 25, ss. 89–95.
3. Al-Jayyousi, O.R., 2003, “Greywater reuse: towards sustainable water management”, Desalination, Cilt 156, ss. 181–192.
4. APHA, 1985, Standart Methods for the Examination of Water and Wastewater, Sixteenth. ed. American Public Health Association, Washington, DC, ABD.
5. Arunbabu, V., Sruthy, S., Antony, I., Ramasamy, E.V., 2015, “Sustainable greywater management with axonopus compressus (broadleaf carpet grass) planted in sub surface flow constructed wetlands”, Journal of Water Process Engineering, Cilt 7, ss. 153–160.
6. Bani-Melhem, K., Al-Qodah, Z., Al-Shannag, M., Qasaimeh, A., Rasool Qtaishat M., Alkasrawi, M., 2015, “On the performance of real grey water treatment using a submerged membrane bioreactor system”, Journal of Membrane Science, Cilt 476, ss. 40–49.
7. Boddu, V.M., Paul, T., Page, M.A., Byl, C., Ward, L., Ruan, J., 2016, “Gray water recycle: effect of pretreatment technologies on low pressure reverse osmosis treatment”, Journal of Environmental Chemical Engineering, Cilt 4, ss. 4435–4443.
8. Büyükgüngör, H., 2003, Atıksu Arıtma Yöntemleri, Ondokuz Mayıs Üniversitesi, Mühendislik Fakültesi, Çevre Mühendisliği Bölümü, Samsun, Türkiye. CEC, 1991, Council Directive of 21 May 1991 Concerning Urban Waste Water Treatment (91/271/EEC).

9. Elmitwalli, T.A., Otterpohl, R., 2007, “Anaerobic biodegradability and treatment of grey water in upflow anaerobic sludge blanket (UASB) reactor”, Water Research, Cilt 41, ss. 1379–1387.
10. Eriksson, E., Andersen, H.R., Madsen, T.S., Ledin, A., 2009, “Greywater pollution variability and loadings”, Ecological Engineering, Cilt 35, ss. 661–669.
11. Fountoulakis, M.S., Markakis, N., Petousi, I., Manios, T., 2016, “Single house on-site grey water treatment using a submerged membrane bioreactor for toilet flushing”, Science of the Total Environment, Cilt 551–552, ss. 706–711.
12. Friedler, E., Hadari, M., 2006, “Economic feasibility of on-site greywater reuse in multi-storey buildings”, Desalination, Cilt 190, ss. 221–234.
13. Friedler, E., Katz, I., Dosoretz, C.G., 2008, “Chlorination and coagulation as pretreatments for greywater desalination”, Desalination, Cilt 222, ss. 38–49.
14. Ghaitidak, D.M., Yadav, K.D., 2013, “Characteristics and treatment of greywater---A review”, Environmental Science and Pollution Research, Cilt 20, ss. 2795–2809.
15. Guo, W., Vigneswaran, S., Ngo, H.-H., Xing, W., Goteti, P., 2008, “Comparison of the performance of submerged membrane bioreactor (SMBR) and submerged membrane adsorption bioreactor (SMABR)”, Bioresource Technology, Cilt 99, ss. 1012–1017.
16. Gürel, L., Büyükgüngör, H., 2011, “Treatment of slaughterhouse plant wastewater by using a membrane bioreactor”, Water Science and Technology, Cilt 64, ss. 214-219.
17. Innocenti, L., Bolzonella, D., Pavan, P., Cecchi, F., 2002, “Effect of sludge age on the performance of a membrane bioreactor : Influence on nutrient and metals removal”, Desalination, Cilt 146, ss. 467–474.
18. Judd, S., 2008, “The status of membrane bioreactor technology”. Trends in Biotechnology, Cilt 26, ss. 109–116.
19. KAAY, 2006, Kentsel Atıksu Arıtımı Yönetmeliği, Türkiye.
20. Katukiza, A.Y., Ronteltap, M., Niwagaba, C.B., Kansiime, F., Lens, P.N.L., 2014, “Grey water treatment in urban slums by a filtration system: Optimisation of the filtration medium”, Journal of Environmental Management, Cilt 146, ss. 131–141.
21. Kujawa-Roeleveld, K., Zeeman, G., 2006, “Anaerobic treatment in decentralised and source-separation-based sanitation concepts”, Reviews in Environmental Science and Biotechnology, Cilt 5, ss. 115–139.
22. Li, F., Wichmann, K., Otterpohl, R., 2009, “Review of the technological approaches for grey water treatment and reuses”, Science of the Total Environment, Cilt 407, ss. 3439–3449.
23. Liu, S., Butler, D., Memon, F.A., Makropoulos, C., Avery, L., Jefferson, B., 2010, “Impacts of residence time during storage on potential of water saving for grey water recycling system”, Water Research, Cilt 44, ss. 267–277.
24. Lv, W., Zheng, X., Yang, M., Zhang, Y., Liu, Y., Liu, J., 2006, “Virus removal performance and mechanism of a submerged membrane bioreactor”, Process Biochemistry, Cilt 41, ss. 299–304.
25. Ma, D., Chen, L., Liu, C., Bao, C., Liu, R., 2015, “Biological removal of antiandrogenic activity in gray wastewater and coking wastewater by membrane reactor process”, Journal of Environmental Sciences (China), Cilt 33, ss. 195–202.
26. Melin, T., Jefferson, B., Bixio, D., Thoeye, C., De Wilde, W., De Koning, J., van der Graaf, J., Wintgens, T., 2006, “Membrane bioreactor technology for wastewater treatment and reuse”, Desalination, Cilt 187, ss. 271–282.
27. Merz, C., Scheumann, R., El Hamouri, B., Kraume, M., 2007, “Membrane bioreactor technology for the treatment of greywater from a sports and leisure club”, Desalination, Cilt 215, ss. 37–43.
28. Nawaz, T., Sengupta, S., 2017, “Silver recovery from greywater: Role of competing cations and regeneration”, Separation and Purification Technology, Cilt 176, ss. 145–158.
29. Rosenberger, S., Krüger, U., Witzig, R., Manz, W., Szewzyk, U., Kraume, M., 2002, “Performance of a bioreactor with submerged membranes for aerobic treatment of municipal waste water”, Water Research, Cilt 36, ss. 413–420.
30. Sanchez, M., Rivero, M.J., Ortiz, I., 2010, “Photocatalytic oxidation of grey water over titanium dioxide suspensions”, Desalination, Cilt 262, ss. 141–146.
31. Santasmasas, C., Rovira, M., Clarens, F., Valderrama, C., 2013, “Grey water reclamation by decentralized MBR prototype”, Resources, Conservation and Recycling, Cilt 72, ss. 102–107.
32. Scheumann, R., Kraume, M., 2009, “Influence of hydraulic retention time on the operation of a submerged membrane sequencing batch reactor (SM-SBR) for the treatment of greywater”, Desalination, Cilt 246, ss. 444–451.
33. SKKY, (2008), Su Kirliliği Kontrolü Yönetmeliği, Türkiye.
34. Wurochekke, A.A., Harun, N.A., Mohamed, R.M.S.R., Kassim, A.H.B.M., 2014, “Constructed wetland of lepironia articulata for household greywater treatment”, APCBEE Procedia, Cilt 10, ss. 103–109.
35. Zuma, B.M., Tandlich, R., Whittington-Jones, K.J., Burgess, J.E., 2009, “Mulch tower treatment system part I: Overall performance in greywater treatment”, Desalination, Cilt 242, ss. 38–56.