Application of SHARON Process for Leachate Treatment

Yıl 2012, Cilt: 24 Sayı: 1, 1 - 10, 14.05.2012

Kozet Yapsaklı , Cigdem Kalkan Aktan , Bulent Mertoglu

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

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