Organic loading rate: A promising microbial management tool in anaerobic digestion
نویسندگان
چکیده
منابع مشابه
Organic loading rate: A promising microbial management tool in anaerobic digestion.
This study investigated the effect of changes in organic loading rate (OLR) and feedstock on the volatile fatty acids (VFAs) production and their potential use as a bioengineering management tool to improve stability of anaerobic digesters. Digesters were exposed to one or two changes in OLR using the same or different co-substrates (Fat Oil and Grease waste (FOG) and/or glycerol). Although all...
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The effect of organic loading rate (OLR) on a pressurized anaerobic filter was studied in a laboratory two-phase anaerobic digestion system. The anaerobic filter was operated successively at two working pressures (9 bar and 1.5 bar). The OLR(COD) for each pressure was increased from 5 to 17.5 kg·m·day. The best performance of the reactor at 9 bar was observed at OLR(COD) of 12.5 kg·m·day and hy...
متن کاملMaximum organic loading rate for the single-stage wet anaerobic digestion of food waste.
Anaerobic digestion of food waste was conducted at high OLR from 3.7 to 12.9 kg-VS m(-3) day(-1) for 225 days. Periods without organic loading were arranged between the each loading period. Stable operation at an OLR of 9.2 kg-VS (15.0 kg-COD) m(-3) day(-1) was achieved with a high VS reduction (91.8%) and high methane yield (455 mL g-VS-1). The cell density increased in the periods without org...
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The anaerobic digestion of filter cake and its co-digestion with bagasse, and the effect of gradual increase of the organic loading rate (OLR) from start-up to overload were investigated. Understanding the influence of environmental and technical parameters on the development of particular methanogenic pathway in the biogas process was an important aim for the prediction and prevention of proce...
متن کاملAmmonia threshold for inhibition of anaerobic digestion of thin stillage and the importance of organic loading rate
Biogas production from nitrogen-rich feedstock results in release of ammonia (NH3), causing inhibition of the microbial process. The reported threshold ammonia value for stable biogas production varies greatly between studies, probably because of differences in operating conditions. Moreover, it is often difficult to separate the effect of ammonia inhibition from that of organic loading rate (O...
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ژورنال
عنوان ژورنال: Water Research
سال: 2016
ISSN: 0043-1354
DOI: 10.1016/j.watres.2016.05.009