Anaerobic co-digestion process for biogas production: Progress, challenges and perspectives

Hagos, Kiros; Zong, Jianpeng; Li, Dongxue; Liu, Chang; Lü, Xiaohua

doi:10.1016/j.rser.2016.11.184

Cited by 671 publications

(305 citation statements)

References 139 publications

Supporting

Mentioning

269

Contrasting

Unclassified

Order By: Relevance

“…Optimum growth of microorganism is in meshophilic and thermophilic temperature. AD microorganisms are very sensitive to temperature changing that affect the production of hydrogen and methane, and decomposition of organic matter [5]. Low temperatures cause the low production of volatile fatty acids (VFA) from lignocellulose thereby decreasing the production of biogas.…”

Section: Resultsmentioning

confidence: 99%

Enhancing biogas quality of indigofera plant waste through co-digestion with cow dung

2018

View full text Add to dashboard Cite

Abstract. The production process of indigofera plants yields 10% of blue natural dyes and wastes are 90%.The biomass wastes from the extraction of indigofera plants are classified as difficult to process in an Anaerobic Digester (AD) because of the large content of hemicellulose in the Indigofera stems. Therefore, the study reports the anaerobic digestion of Indigofera plant wastes co-digested with cow dung for enhancing the biogas quality. The digestion process was conducted in a vessel of 160 L with various weight ratios between Indigofera biomass and cow dung by 0%, 25%, 50%, 75%, and 100%. The results show that the AD reactor temperature kept above 29.5°C with a pH between 6-7 were the key factors for enhancing the biogas quality. The co-digestion between 50% indigofera wastes with 50% cow dung yielded biogas with a CH4 content of about 42% and H2S concentration below 40 ppm showing that the biogas has the potential to be further improved in quality and can be used to fuel the stove and power generation.

show abstract

Section: Resultsmentioning

confidence: 99%

Enhancing biogas quality of indigofera plant waste through co-digestion with cow dung

2018

View full text Add to dashboard Cite

show abstract

“…Proses degradasi anaerobik merupakan proses fermentasi bahan organik oleh aktivitas bakteri anaerob pada kondisi tanpa oksigen bebas dan merubahnya dari bentuk tersuspensi menjadi terlarut dan biogas (8) . Pengolahan limbah secara anaerobik dapat diartikan sebagai proses biokimia yang menghasilkan biogas dengan merubah bahan organik kompleks menjadi sumber energi terbarukan (9) . Proses pengelohan anaerobik dapat memberikan keuntungan lebih dibandingkan pengolahan secara aerobik (10) , diantaranya yaitu:  Proses anaerobik tidak membutuhkan energi untuk aerasi, sehingga mengurangi biaya pada proses pengolahannya  Lumpur atau sludge yang dihasilkan lebih sedikit dari proses aerobik.…”

Section: Latar Belakangunclassified

Evaluasi Kinerja Operasi Sistem Anaerobik Tipe Fixed Bed untuk Pengolahan Limbah Cair Industri Tahu menjadi Biogas di Kota Probolinggo

2018

View full text Add to dashboard Cite

ABSTRAKSetiap proses pembuatan tahu secara umum menghasilkan limbah yaitu limbah padat dan limbah cair. Limbah padat yang dihasilkan dari industri tahu dapat digunakan sebagai pakan ternak atau dijual sebagai bahan baku industri lain, sedangkan limbah cair biasanya langsung dibuang sehingga menyebabkan masalah lingkungan. Pada dasarnya limbah cair industri tahu dapat diolah menjadi produk yang bermanfaat. Pada penelitian ini limbah cair industri tahu diolah menjadi biogas dengan menggunakan reaktor anaerobik tipe Fixed Bed. Tujuan dari Penelitian ini adalah untuk mengkaji dan mengatur variabel operasi reaktor tersebut agar berkinerja optimal dalam mendegradasi bahan organik yang terkandung dalam limbah cair industri tahu. Metode penelitian yang dilakukan terbagi menjadi dua tahapan yaitu proses inokulasi dan proses adaptasi limbah cair industri tahu. Hasil yang diperoleh pada penelitian ini adalah terbangunnya reaktor anaerobik tipe Fixed Bed dengqan kapasitas 43 m 3 . Kemampuan kinerja maksimal reaktor berada pada hari ke-39 dengan pengisian umpan limbah sebanyak 7.700 liter/hari, waktu tinggal 4,5 hari, sedangkan volume produksi biogas maksimum yang dihasilkan dari pengolahan limbah cair tahu ini adalah 35.158 Liter/hari, rata-rata nilai metana adalah 65%, effisiensi COD yang diperoleh dari pengolahan limbah cair industri tahu ini adalah 87,7%, nilai rata-rata pH effluent adalah 6,5, dan 1 g COD dapat menghasilkan 0,51liter gas metana

show abstract

“…The fossil resources around the world are being depleted at a tremendous velocity, i.e., reaching a global total energy use of 1.64 × 10 5 TWh in 2017 to which renewable sources 48 only contributed 25% (Enerdate 2018). This makes a transition towards sustainable resources 49 for materials and energy of key importance to halt the increase in CO2 equivalents emissions 50 and related climate change (De Meester et al 2012;Hagos et al 2017). Anaerobic digestion 51 (AD) is a microbial process that can be one of the possible solutions for this problem.…”

Section: Introduction 44mentioning

confidence: 99%

The feedstock microbiome selectively steers process stability during the anaerobic digestion of waste activated sludge

Law

Henau

Vrieze

2019

Preprint

View full text Add to dashboard Cite

Strategies to enhance process performance of anaerobic digestion remain of key importance to achieve further spreading of this technology for integrated resource recovery from organic waste streams. Continuous inoculation of the microbial community in the digester via the feedstock could be such a cost-effective strategy. Here, anaerobic digestion of fresh waste activated sludge (WAS) was compared with sterilized WAS in response to two common process disturbances, i.e., organic overloading and increasing levels of salts, to determine the importance of feedstock inoculation. A pulse in the organic loading rate severely impacted process performance of the digesters fed sterile WAS, with a 92 ± 45 % decrease in methane production, compared to a 42 ± 31 % increase in the digesters fed fresh WAS, relative to methane production before the pulse. Increasing salt pulses did not show a clear difference in process performance between the digesters fed fresh and sterile WAS, and process recovery was obtained even at the highest salt pulse of 25 g Na+ L−1. Feedstock sterilisation strongly impacted the microbial community in the digesters. In conclusion, feedstock inoculation can be considered a cheap, yet, disturbance-specific strategy to enhance process stability in full-scale anaerobic digestion processes.

show abstract

Anaerobic co-digestion process for biogas production: Progress, challenges and perspectives

Cited by 671 publications

References 139 publications

Enhancing biogas quality of indigofera plant waste through co-digestion with cow dung

Enhancing biogas quality of indigofera plant waste through co-digestion with cow dung

Evaluasi Kinerja Operasi Sistem Anaerobik Tipe Fixed Bed untuk Pengolahan Limbah Cair Industri Tahu menjadi Biogas di Kota Probolinggo

The feedstock microbiome selectively steers process stability during the anaerobic digestion of waste activated sludge

Contact Info

Product

Resources

About