Dry anaerobic digestion of chicken manure coupled with membrane separation of ammonia

Bayrakdar, Alper; Sürmeli, Recep Önder; Çallı, Barış

doi:10.1016/j.biortech.2017.08.047

Cited by 87 publications

(38 citation statements)

References 46 publications

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“…Hydrogenotrophic methanogens are more resistant to elevated TAN concentrations than acetoclastic ones and become dominant in anaerobic digesters as TAN concentrations increase . The results of metagenomics analyses of our previous studies showed that M. bourgensis and Methanobrevibacter , hydrogenotrophic methanogens, were dominant when the TAN concentration was higher than 5000 mg/L .…”

Section: Resultsmentioning

confidence: 85%

Anaerobic digestion of chicken manure: Influence of trace element supplementation

Molaey

Bayrakdar

Sürmeli

et al. 2018

Engineering in Life Sciences

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In this study, anaerobic digestion of nitrogen‐rich chicken (egg‐laying hen) manure at different trace element (TE) mix doses and different total ammonia nitrogen (TAN) concentrations was investigated in batch digestion experiments. With respect to nonsupplemented TE sets, addition of TE mixture containing 1 mg/L Ni, 1 mg/L Co, 0.2 mg/L Mo, 0.2 mg/L Se, 0.2 mg/L W, and 5 mg/L Fe at TAN concentrations of 3000 mg/L and 4000 mg/L, cumulative CH4 production and CH4 production rate improved by 7–8% and 5–6%, respectively. The results revealed that at a very high TAN concentration of 6000 mg/L, the effect of TE addition was significantly high and the cumulative CH4 production and production rate were increased by 20 and 39.5%, respectively. Therefore, it is concluded that at elevated TAN concentrations the CH4 production that was stimulated by TE supplementation was presumably occurred through syntrophic acetate oxidation.

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Section: Resultsmentioning

confidence: 85%

Anaerobic digestion of chicken manure: Influence of trace element supplementation

Molaey

Bayrakdar

Sürmeli

et al. 2018

Engineering in Life Sciences

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“…Total ammonia nitrogen (TAN) was measured with the nesslerization method (HACH-8038) by using a spectrophotometer (WTW photoLab 6100, Germany). Volatile fatty acids were determined by using a gas chromatograph (GC) (Shimadzu GC-2014, Japan) according to method described by Bayrakdar et al [18]. pH was analyzed using a pH meter (WTW 3310, Germany).…”

Section: Analytical Techniquesmentioning

confidence: 99%

Anaerobic co-digestion of tannery solid waste: optimum leather fleshings waste loading

Bayrakdar¹

2020

Pamukkale J Eng Sci

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In this study, loading of optimum leather fleshings was investigated with four identical batch reactors with different fleshings and treatment sludge ratios (0:1, 0.25:1, 0.35:1, 0.50:1) to contribute to the state of art of the biogas production from tannery solid wastes. Results showed that lipids-containing leather fleshings boosted the methane production potential. However, H2S inhibition and volatile fatty acids accumulation were the main concern in the anaerobic digestion of these wastes. The modified Gompertz model was applied to the batch tests data to determine the kinetic constants of anaerobic digestion of tannery solid wastes. It was calculated with the model outputs that the ultimate methane production potential and maximum methane production rate in reactors having mixing ratio of 0.35:1 and 0.5:1 (dry basis) were highly similar. 0.35 was found to be an optimum leather fleshing and treatment sludge ratio with a 54% more methane production potential than that of control reactor in this study.Tabakhane katı atıklarından biyogaz üretimi üzerine literatüre katkı sağlamak amacıyla yürütülen bu çalışmada deri etleme atığı yükünün anaerobik biyogaz üretimine etkisi ve optimum deri etleme atığı yükü, farklı etleme atığı ve arıtma çamuru karışım oranlarıyla (0:1, 0.25:1, 0.35:1, 0.50:1) kesikli olarak işletilen dört eşdeğer anaerobik reaktör ile incelenmiştir. Elde edilen sonuçlar, lipit içeren atıkların metan üretim potansiyelini arttırdığını göstermiştir. Ancak, H2S inhibisyonu ve uçucu yağ asitlerinin birikimi bu atıkların anaerobik olarak çürütülmesinde dikkat edilmesi gereken önemli hususlar olarak görülmüştür. Kesikli deneyler ile elde edilen verilere Gompertz modeli uygulanarak bu atıkların anaerobik olarak çürütülmesinde kinetik katsayılar belirlenmiştir. 0.35: 1 ve 0.5: 1 (kuru bazda) karışım oranı ile işletilen reaktörlerin nihai metan üretim potansiyelleri ve metan üretim hızı değerlerinin oldukça benzer olduğu model çıktıları ile hesaplanmıştır. Çalışmada, 0.35:1 karışım oranı ile işletilen reaktörün hiç etleme atığı ilave edilmemiş kontrol reaktörüne göre %54 daha fazla metan üretim potansiyeline sahip olduğu ve bu karışım oranının optimum etleme atığı ve arıtma çamuru oranı olduğu gözlenmiştir.

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“…Among the microorganisms in anaerobic digesters, methanogens are the most vulnerable to ammonia inhibition (Kayhanian, 1994). It was reported that methanogens may be acclimated to total ammonium (NH + 4 plus NH 3 ) at nitrogen concentrations over 5000 mg/L in manure digesters (Bayrakdar et al, 2017). Acetoclastic methanogens are more sensitive to ammonia inhibition and that is why the methanogenic pathways shifts towards syntrophic acetate oxidation coupled to hydrogenotrophic methanogenesis at high amonia levels (Sun et al, 2016a, b).…”

Section: Nitrogen Biogeochemistry In Anaerobic Digestersmentioning

confidence: 99%

Biogeochemistry of major elements in anaerobic digesters: carbon, nitrogen, phosphorus, sulfur and iron

Hullebusch¹,

Yekta²,

Çallı³

et al. 2019

Trace Elements in Anaerobic Biotechnologies

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This chapter provides an overview of the main biochemical transformations of major elements, including carbon, nitrogen, sulfur, iron and phosphorus in anaerobic digesters. Mineralization of organic matter during anaerobic digestion processes results in the production of inorganic carbonate, ammonium, sulfide, and phosphate species, which are involved in a complex network of chemical and biological reactions through interaction with available macro and micro nutrients as well as microbial processes with profound effects on the efficiency and stability of the anaerobic digester performance. The interplay of iron, phosphorus and sulfur cycles has recently attracted attention in the frame of research developed for the recovery of phosphorus on one hand and in the frame of the

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Dry anaerobic digestion of chicken manure coupled with membrane separation of ammonia

Cited by 87 publications

References 46 publications

Anaerobic digestion of chicken manure: Influence of trace element supplementation

Anaerobic digestion of chicken manure: Influence of trace element supplementation

Anaerobic co-digestion of tannery solid waste: optimum leather fleshings waste loading

Biogeochemistry of major elements in anaerobic digesters: carbon, nitrogen, phosphorus, sulfur and iron

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