Application of SHARON Process for Leachate Treatment

Öz

Conventional nitrification-denitrification processes are used extensively for the treatment of nitrogenous compounds in leachate treatment however; it results in high operational cost due to excessive oxygen requirement. Combination of SHARON-ANAMMOX processes are among the novel nitrogen removal technologies and are promising methods for cost-effective removal of these compounds. In the scope of this study, the applicability of SHARON process for the pre-treated leachate (a lab scale anaerobic + aerobic MBR treatment) taken from Komurcuoda Leachate is investigated in a chemostat reactor. The applicability of the system is first tested using synthetic wastewater and after stable operation is achieved, diluted leachate is given to the system. The experimental results showed that influent ammonia is converted to nitrite with 52% nitritation efficiency and 40% of influent remained as ammonia. Therefore, the effluent of the SHARON system is in suitable composition to be treated in the ANAMMOX reactor.

Anahtar Kelimeler

• SHARON; leachate; ANAMMOX; partial nitritation

SHARON Prosesinin Sızıntı Suyu Arıtımında Uygulanması

Öz

Yüksek konsantrasyonlarda azotlu bileşikler içeren çöp sızıntı sularının arıtımında kullanılan konvansiyonel nitrifikasyon-denitrifikasyon süreci yüksek oksijen ihtiyacı nedeni ile işletme maliyetlerini ciddi bir biçimde artırmaktadır. Yakın zamanda tanımlanan azot giderme metotlarından SHARON ve ANAMMOX kombinasyonu yüksek amonyak yüküne sahip atıksuların arıtımında umut vadeden bir süreçtir. Bu çalışma kapsamında, anaerobik arıtma ve aerobik membran biyoreaktör (MBR) metotları ile ön arıtımı gerçekleştirilen Kömürcüoda Sızıntı Suyu’na SHARON prosesinin uygulanabilirliği araştırılmıştır. Laboratuvar ölçekli SHARON reaktöründe uygun bakteri kültürünün yetişebilmesi amacı ile önce sentetik atıksu daha sonra da seyreltilmiş sızıntı suyu kullanılarak sistemin uygulanabilirliği test edilmiştir. Deneysel sonuçlar giriş amonyağının %52’sinin nitrite dönüştürüldüğünü, %40’ının da amonyak olarak sistemde kaldığını göstermiştir. SHARON çıkış akımının bu sebeple ANAMMOX reaksiyonu için uygun kompozisyonda atıksu ürettiği anlaşılmaktadır.

Anahtar Kelimeler

• SHARON; sızıntı suyu; ANAMMOX; kısmi nitritasyon

Kaynakça

1. Hunik J.H. (1993) Engineering aspects of nitrification with immobilized cells. Wageningen Agricultural University,
2. Jetten M.S.M., Horn S.J., vanLoosdrecht M.C.M. (1997) Towards a more sustainable municipal wastewater treatment system. Water Science and Technology 35 (9):171- 180. doi:
3. Klees R., Silverstein J. (1992) Improved Biological Nitrification Using Recirculation in Rotating Biological Contactors. Water Science and Technology 26 (3-4):545-553. doi:
4. Kowalchuk G.A., Stephen J.R. (2001) Ammonia-oxidizing bacteria: A model for molecular microbial ecology. Annual Review of Microbiology 55:485-529. doi:
5. Liang Z., Liu H.X. (2007) Control factors of partial nitritation for landfill leachate treatment. Journal of Environmental Sciences-China 19 (5):523-529. doi:
6. Mata-Alvarez J., Gali A., Dosta J., van Loosdrecht M.C.M. (2007) Two ways to achieve an ANAMMOX influent from real reject water treatment at lab-scale: Partial SBR nitrification and SHARON process. Process Biochemistry 42 (4):715-720. doi: 10.1016/j.procbio.2006.12.002
7. Mulder A., Vandegraaf A.A., Robertson L.A., Kuenen J.G. (1995) Anaerobic Ammonium Oxidation Discovered in a Denitrifying Fluidized-Bed Reactor. Fems Microbiology Ecology 16 (3):177-183. doi:
8. Paredes D., Kuschk P., Mbwette T.S.A., Stange F., Muller R.A., Koser H. (2007) New aspects of microbial nitrogen transformations in the context of wastewater treatment - A review. Engineering in Life Sciences 7 (1):13-25. doi: 10.1002/elsc.200620170

9. Santos V.A., Tramper J., Wijffels R.H. (1992) Integrated nitrification and denitrification with immobilized microorganisms. In: In: Biofilms - science and technology, L.F. Melo et al. (eds.). Kluwer Acad. Publ., Dordrecht (1992) 449-453.
10. Strous M., Heijnen J.J., Kuenen J.G., Jetten M.S.M. (1998) The sequencing batch reactor as a powerful tool for the study of slowly growing anaerobic ammonium- oxidizing microorganisms. Applied Microbiology and Biotechnology 50 (5):589-596. doi:
11. Timur H., Ozturk I. (1997) Anaerobic treatment of leachate using sequencing batch reactor and hybrid bed filter. Water Science and Technology 36 (6-7):501-508. doi:
12. van de Graaf A.A., Mulder A., Debruijn P., Jetten M.S.M., Robertson L.A., Kuenen J.G. (1995) Anaerobic Oxidation of Ammonium Is a Biologically Mediated Process. Applied and Environmental Microbiology 61 (4):1246-1251. doi:
13. van Dongen U., Jetten M.S.M., van Loosdrecht M.C.M. (2001) The SHARON((R))- ANAMMOX((R)) process for treatment of ammonium rich wastewater. Water Science and Technology 44 (1):153-160. doi:
14. van Kempen R., Mulder J.W., Uijterlinde C.A., Loosdrecht M.C.M. (2001) Overview: full scale experience of the SHARON (R) process for treatment of rejection water of digested sludge dewatering. Water Science and Technology 44 (1):145-152. doi:
15. Vilar A., Eiroa M., Kennes C., Veiga M.C. (2010) The SHARON process in the treatment of landfill leachate. Water Science and Technology 61 (1):47-52. doi: Doi 10.2166/Wst.2010.786
16. Winogradsky S. (1890) 2nd memoire. Recherches sur les organismes de la nitrification. : . Ann Inst Pasteur 4:257-275. doi:
17. Xu Z.Y., Zeng G.M., Yang Z.H., Xiao Y., Cao M., Sun H.S., Ji L.L., Chen Y. (2010) Biological treatment of landfill leachate with the integration of partial nitrification, anaerobic ammonium oxidation and heterotrophic denitrification. Bioresource Technology 101 (1):79-86. doi: DOI 10.1016/j.biortech.2009.07.082 [27] Zumft W.G.
18. (1997) Cell biology and molecular basis of denitrification. Microbiology
19. and Molecular Biology Reviews 61 (4):533-+. doi: