Effects of organic loading rate on anaerobic digestion of chicken manure under mesophilic and thermophilic conditions

Bi, Shaojie; Qiao, Wei; Xiong, Lize; Ricci, M.; Adani, Fabrizio; Dong, Renjie

doi:10.1016/j.renene.2019.02.083

Cited by 64 publications

(26 citation statements)

References 36 publications

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“…As a result, many researchers are dedicated to finding relatively accurate limitations of TAN and FAN concentrations which can inhibit the AD process. Although some studies concerning the relationship between OLR and AD performance have been reported [16], and the effects of the OLR of nitrogen-rich substrates on TAN cumulation were also investigated under specific OLR concentrations [17], there is also an urge to explore the more complex relationship between TAN, FAN, and OLRs, especially with an innovative feeding means. As is known to us, as a raw substrate with high nitrogen content, chicken manure easily causes TAN inhibition during AD [18].…”

Section: Introductionmentioning

confidence: 99%

Performance of Anaerobic Digestion of Chicken Manure Under Gradually Elevated Organic Loading Rates

Zhang

Wang

Pei

et al. 2019

IJERPH

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Poultry manure is the main source of agricultural and rural non-point source pollution, and its effective disposal through anaerobic digestion (AD) is of great significance; meanwhile, the high nitrogen content of chicken manure makes it a typical feedstock for anaerobic digestion. The performance of chicken-manure-based AD at gradient organic loading rates (OLRs) in a continuous stirred tank reactor (CSTR) was investigated herein. The whole AD process was divided into five stages according to different OLRs, and it lasted for 150 days. The results showed that the biogas yield increased with increasing OLR, which was based on the volatile solids (VS), before reaching up to 11.5 g VS/(L·d), while the methane content was kept relatively stable and maintained at approximately 60%. However, when the VS was further increased to 11.5 g VS/(L·d), the total ammonia nitrogen (TAN), pH, and alkalinity (CaCO3) rose to 2560 mg·L−1, 8.2, and 15,000 mg·L−1, respectively, while the volumetric biogas production rate (VBPR), methane content, and VS removal efficiency decreased to 0.30 L·(L·d)−1, 45%, and 40%, respectively. Therefore, the AD performance immediately deteriorated and ammonia inhibition occurred. Further analysis demonstrated that the microbial biomass yield and concentrations dropped dramatically in this period. These results indicated that the AD stayed steady when the OLR was lower than 11.5 g VS/(L·d); this also provides valuable information for improving the efficiency and stability of AD of a nitrogen-rich substrate.

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Section: Introductionmentioning

confidence: 99%

Performance of Anaerobic Digestion of Chicken Manure Under Gradually Elevated Organic Loading Rates

Zhang

Wang

Pei

et al. 2019

IJERPH

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“…Hammaddenin yüksek azot (N) içerikli olması özellikle de termofilik şartlarda ayrışma sonucu yüksek amonyağa ve yüksek amonyak ise uçucu yağ asidi (UYA) birikimine neden olarak sistemi olumsuz etkilemektedir. Yüksek NH3, pH artışına da neden olmaktadır [31]. Qi vd.…”

Section: Kriterlerunclassified

Mezofilik ve Termofilik Anaerobik Çürütmenin Çok Kriterli Karar Verme Yöntemleri ile Fayda, Maliyet ve Risk Açısından Karşılaştırılması

Adar

2020

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

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ÖzAnaerobik çürütme atıkların stabilizasyonunu, kütle/hacim azaltımını ve aynı zamanda yenilebilir enerji üretimini sağlamaktadır. Bu çalışmanın amacı çevresel uygulama olan ve yaygın şekilde de atık/atıkların arıtımı için tam ölçekli olarak kullanılan anaerobik çürütmenin mezofilik mi yoksa termofilik şartlarda işletimi mi daha öncelikli olduğunu fayda, maliyet ve risk açısından belirlemektir. Bu yöntemlerden en etkin yöntemin seçilmesinde ele alınacak fayda, maliyet ve risk ana kriterleri için alt kriterler de belirlenerek, AHP ve TOPSİS yöntemleri ile karar verilmeye çalışılmıştır. Çalışma sonucunda her bir ana kriter açısından alternatifler değerlendirildiğinde fayda kriteri için T-AÇ, maliyet kriteri için M-AÇ ve risk kriteri için T-AÇ'ye karar verilmiştir. Tüm kriterler beraber ele alındığında ise fayda, maliyet ve risk açısından en iyi yöntemin termofilik anaerobik çürütme olduğu söylenebilir.

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“…However, the stability of anaerobic digestion is susceptible to fluctuations in substrate composition (such as total solids, chemical oxygen demand, C/N ratio, and total organic carbon), accumulation of toxic substances, sludge aging and other factors [10]. The organic loading rate (OLR) of organic waste anaerobic digestion systems is normally controlled to be less than 4 g Volatile Solid/d•L [11]. Ammonia suppression is the most typical phenomenon in the anaerobic process because of nitrogenrich materials.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Recycling Dry Toilet Generated Blackwater by Anaerobic Digestion: From Energy Recovery to Sanitation

Zuo

Zhou

et al. 2021

Sustainability

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Anaerobic digestion (AD) has been widely adapted for blackwater treatment, however, the effect of water-conserving toilet generated blackwater on the AD process is still unknown. In this study, the anaerobic digestion process of dry toilet generated blackwater was investigated by means of a biomethane potential test. It was demonstrated that anaerobic digestion was inhibited and then adapted because of a high total ammonium nitrogen (TAN) level (3673.3 mg/L). The start-up period was 14.04 days and the biomethane potential of dry toilet blackwater was 402.36 mLCH4/gVS (55 days, 38 °C). Inhabitation and adaptation could be described as the increase of free ammonia nitrogen content and acetic acid concentration, followed by an enhancement of the relative abundance of acetic acid-type methanogens (from 33.53–61.52%). The main pathogen in dry toilet blackwater fermentation broth, Pseudomonas aeruginosa, kept multiplying in the first 8 days and then stabilized at a higher level than that of the beginning. This work showed the self-adjustment process and pathogen dynamics of dry toilet blackwater anaerobic digestion and highlights the significance of dry toilet blackwater characteristics when designing and maintaining anaerobic digestion sanitary treatment and reuse systems.

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Effects of organic loading rate on anaerobic digestion of chicken manure under mesophilic and thermophilic conditions

Cited by 64 publications

References 36 publications

Performance of Anaerobic Digestion of Chicken Manure Under Gradually Elevated Organic Loading Rates

Performance of Anaerobic Digestion of Chicken Manure Under Gradually Elevated Organic Loading Rates

Mezofilik ve Termofilik Anaerobik Çürütmenin Çok Kriterli Karar Verme Yöntemleri ile Fayda, Maliyet ve Risk Açısından Karşılaştırılması

Investigation on Recycling Dry Toilet Generated Blackwater by Anaerobic Digestion: From Energy Recovery to Sanitation

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