Performance of simultaneous carbon, nitrogen, and phosphorus removal from vegetable oil refining wastewater in an aerobic-anoxic sequencing batch reactor (OA-SBR) system by alternating the cycle times

Haddaji, Chaymae; Chatoui, Mohammed; Khattabi Rifi, Safaa; Ettaloui, Zineb; Digua, Khalid; PALA, AYŞEGÜL; Anouzla, Abdelkader; Souabi, Salah

doi:10.1016/j.enmm.2023.100827

Performance of simultaneous carbon, nitrogen, and phosphorus removal from vegetable oil refining wastewater in an aerobic-anoxic sequencing batch reactor (OA-SBR) system by alternating the cycle times

Atıf İçin Kopyala

Haddaji C., Chatoui M., Khattabi Rifi S., Ettaloui Z., Digua K., PALA A., ...Daha Fazla

Environmental Nanotechnology, Monitoring and Management, cilt.20, 2023 (Scopus)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 20
Basım Tarihi: 2023
Doi Numarası: 10.1016/j.enmm.2023.100827
Dergi Adı: Environmental Nanotechnology, Monitoring and Management
Derginin Tarandığı İndeksler: Scopus
Anahtar Kelimeler: Aerobic-anoxic, Environmental pollutants, Pre-treatment, Sequencing batch reactor, Vegetable oil refineries
Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Carbon (C), nitrogen (N), and phosphorus (P) pollutants are among the most common environmental contaminants in different types of industrial wastewater, and they are a pollution factor that causes the eutrophication of receiving aquatic systems. An aerobic-anoxic sequencing batch reactor (O/A-SBR) system was studied to enhance the efficiency of vegetable oil refining wastewater treatment (VORW). Reactors were exploited with a total cycle period of 24 h (20 min filling, 17 h aeration, 4 h anoxic, 2 h settling, 20 min draw, and 20 min idle). SBR efficiency was evaluated by measuring pH, turbidity, chemical oxygen demand (COD), biochemical oxygen demand (BOD5), and nutrients such as nitrate, ammonium, and phosphate. The results showed better performance from the start of operation with COD (83%), BOD5 (94%), turbidity (80%), nitrate (93%), ammonium (96%), and phosphate (91%) removal efficiencies. As industrial wastewater treatment is an important and complicated issue regarding environmental pollution, SBR can provide a better solution. The O/A-SBR system is a promising option that the VOR industry may adopt as a pre-treatment due to its more effective, inexpensive, and simple operation for organic matter and nutrient removal.