TY  - JOUR
A1  - Cheenakula, Dheeraja
A1  - Paulsen, Svea
A1  - Ott, Fabian
A1  - Grömping, Markus
T1  - Operational window of a deammonifying sludge for mainstream application in a municipal wastewater treatment plant
JF  - Water and Environment Journal
N2  - The present work aimed to study the mainstream feasibility of the deammonifying sludge of side stream of municipal wastewater treatment plant (MWWTP) in Kaster, Germany. For this purpose, the deammonifying sludge available at the side stream was investigated for nitrogen (N) removal with respect to the operational factors temperature (15–30°C), pH value (6.0–8.0) and chemical oxygen demand (COD)/N ratio (≤1.5–6.0). The highest and lowest N-removal rates of 0.13 and 0.045 kg/(m³ d) are achieved at 30 and 15°C, respectively. Different conditions of pH and COD/N ratios in the SBRs of Partial nitritation/anammox (PN/A) significantly influenced both the metabolic processes and associated N-removal rates. The scientific insights gained from the current work signifies the possibility of mainstream PN/A at WWTPs. The current study forms a solid basis of operational window for the upcoming semi-technical trails to be conducted prior to the full-scale mainstream PN/A at WWTP Kaster and WWTPs globally.
KW  - Anammox
KW  - Mainstream
KW  - Nitrogen removal
KW  - Partial nitritation
KW  - Wastewater
Y1  - 2023
U6  - http://dx.doi.org/10.1111/wej.12898
SN  - 1747-6593
N1  - Corresponding author: Dheeraja Cheenakula
IS  - Early View
SP  - 1
EP  - 12
PB  - Wiley
CY  - Chichester
ER  - 
TY  - JOUR
A1  - Hoffstadt, Kevin
A1  - Pohen, Gino D.
A1  - Dicke, Max D.
A1  - Paulsen, Svea
A1  - Krafft, Simone
A1  - Zang, Joachim W.
A1  - Fonseca-Zang, Warde A. da
A1  - Leite, Athaydes
A1  - Kuperjans, Isabel
T1  - Challenges and prospects of biogas from energy cane as supplement to bioethanol production
JF  - Agronomy
N2  - Innovative breeds of sugar cane yield up to 2.5 times as much organic matter as conventional breeds, resulting in a great potential for biogas production. The use of biogas production as a complementary solution to conventional and second-generation ethanol production in Brazil may increase the energy produced per hectare in the sugarcane sector. Herein, it was demonstrated that through ensiling, energy cane can be conserved for six months; the stored cane can then be fed into a continuous biogas process. This approach is necessary to achieve year-round biogas production at an industrial scale. Batch tests revealed specific biogas potentials between 400 and 600 LN/kgVS for both the ensiled and non-ensiled energy cane, and the specific biogas potential of a continuous biogas process fed with ensiled energy cane was in the same range. Peak biogas losses through ensiling of up to 27% after six months were observed. Finally, compared with second-generation ethanol production using energy cane, the results indicated that biogas production from energy cane may lead to higher energy yields per hectare, with an average energy yield of up to 162 MWh/ha. Finally, the Farm²CBG concept is introduced, showing an approach for decentralized biogas production.
Y1  - 2020
U6  - http://dx.doi.org/10.3390/agronomy10060821
SN  - 2073-4395
VL  - 10
IS  - 6
PB  - MDPI
CY  - Basel
ER  - 
TY  - CHAP
A1  - Paulsen, Svea
A1  - Hoffstadt, Kevin
A1  - Krafft, Simone
A1  - Leite, A.
A1  - Zang, J.
A1  - Fonseca-Zang, W.
A1  - Kuperjans, Isabel
T1  - Continuous biogas production from sugarcane as sole substrate
T2  - Energy Reports
Y1  - 2020
U6  - http://dx.doi.org/10.1016/j.egyr.2019.08.035
N1  - 6th International Conference on Energy and Environment Research, ICEER 2019, 22–25 July, University of Aveiro, Portugal
VL  - 6
IS  - Supplement 1
SP  - 153
EP  - 158
PB  - Elsevier
ER  -