Optimum operational conditions for mixotrophic microalgae growth and nutrient recovery
Yükleniyor...
Tarih
2021
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
IOP Publishing Ltd
Erişim Hakkı
info:eu-repo/semantics/openAccess
Attribution 3.0 United States
Attribution 3.0 United States
Özet
Microalgae have been presented as microorganisms with great potential to recover nutrient from wastewater. Mixotrophic cultivation of microalgae in nutrient rich wastewater can help eliminating the deficiencies of both phototrophic and heterotrophic growth by allowing the independent optimisation of respiration and photosynthesis processes. Nutrient control and uptake by mixotrophic microalgae can be achieved either in a single or two-stage process using sequential reactors in a continuous flow system. Therefore, this work aims at studying mixotrophic microalgae growth in a two-stage biological process under continuous flow conditions with biomass recycle to recover nutrients from wastewater, considering the effects of different operational conditions (hydraulic retention time (HRT), cell retention time (CRT) and different nitrogen sources). The optimum operational conditions for algal nutrient uptake were identified to be 48 h HRT and 14 d CRT, using a mix of nitrogen sources (Ammonium-N to Nitrate-N ratio of 1:1) with 40.0% and 93.2% of phosphorus of nitrogen recovery in algal biomass, respectively.
Açıklama
Anahtar Kelimeler
Mixotrophic microalgae growth, Nutrient recovery, Operational conditions
Kaynak
IOP Conference Series: Earth and Environmental Science
WoS Q Değeri
Scopus Q Değeri
Cilt
847
Sayı
1
Künye
Öz, C., Fletcher, L., & Camargo-Valero, M. A. (2021). Optimum operational conditions for mixotrophic microalgae growth and nutrient recovery. Paper presented at the IOP Conference Series: Earth and Environmental Science, 847(1) doi:10.1088/1755-1315/847/1/012025
