@article{Liu:2017:10.1002/elsc.201600169,
author = {Liu, F and Fiencke, C and Guo, J and Rieth, R and Cuhls, C and Dong, R and Pfeiffer, E},
doi = {10.1002/elsc.201600169},
journal = {Engineering in Life Sciences},
pages = {458--466},
title = {Bioscrubber treatment of exhaust air from intensive pig production: Case study in northern Germany at mild climate condition},
url = {http://dx.doi.org/10.1002/elsc.201600169},
volume = {17},
year = {2017}
}

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TY  - JOUR
AB  - <jats:p>Treatment by fieldscale bioscrubber of exhaust air, including ammonia (NH<jats:sub>3</jats:sub>) and the greenhouse gases methane (CH<jats:sub>4</jats:sub>), nitrous oxide (N<jats:sub>2</jats:sub>O), and carbon dioxide (CO<jats:sub>2</jats:sub>), from 13 intensive pig production houses located in northern Germany were investigated in 2013 and 2015. NH<jats:sub>3</jats:sub> removal efficiencies varied between 35 and 100% with an overall average value of 79% under the NH<jats:sub>3</jats:sub> inlet fluctuations from 34 to 755 g d<jats:sup>−1</jats:sup> m<jats:sup>−3</jats:sup> in both 2013 and 2015. Results of the electron microscopic analyses demonstrated that the bacteria <jats:italic>Nitrosomonas</jats:italic> sp. and methanotrophs <jats:italic>type I</jats:italic> were the dominant NH<jats:sub>3</jats:sub> and CH<jats:sub>4</jats:sub> oxidizers, respectively. However, overall average removal efficiencies of CH<jats:sub>4</jats:sub> was approximately zero, which means CH<jats:sub>4</jats:sub> is hard to remove in bioscrubbers under normal operation. The pH of recirculation water in the bioscrubber varied from 6.1 to 8.1, and the bioscrubbers with low pH values (<7.0) had high NH<jats:sub>3</jats:sub> removal efficiencies (>79%). Electrical conductivity was commonly used to diagnose the bioscrubbers’ performance; in the present study, electrical conductivity presented a significant linear relationship with dissolved inorganic nitrogen, which indicates the performance stability of the 13 selected bioscrubbers.</jats:p>
AU  - Liu,F
AU  - Fiencke,C
AU  - Guo,J
AU  - Rieth,R
AU  - Cuhls,C
AU  - Dong,R
AU  - Pfeiffer,E
DO  - 10.1002/elsc.201600169
EP  - 466
PY  - 2017///
SN  - 1618-0240
SP  - 458
TI  - Bioscrubber treatment of exhaust air from intensive pig production: Case study in northern Germany at mild climate condition
T2  - Engineering in Life Sciences
UR  - http://dx.doi.org/10.1002/elsc.201600169
VL  - 17
ER  - 

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