scholarly journals Trace element delivery for biogas production enhanced by alternative energy crops: results from two-year field trials

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Wiebke Fahlbusch ◽  
Katharina Hey ◽  
Benedikt Sauer ◽  
Hans Ruppert
Keyword(s):  
Trace Element ◽  
Alternative Energy ◽  
Biogas Production ◽  
Field Trials ◽  
Energy Crops

The valuation of malnutrition in the mono-digestion of maize silage by anaerobic batch tests

2008 ◽  
Vol 58 (7) ◽  
pp. 1453-1459 ◽  
Author(s):  
L. Hinken ◽  
I. Urban ◽  
E. Haun ◽  
I. Urban ◽  
D. Weichgrebe ◽  
...  
Keyword(s):  
Trace Elements ◽  
Anaerobic Digestion ◽  
Trace Element ◽  
Biogas Production ◽  
Renewable Energy Sources ◽  
Anaerobic Bacteria ◽  
Trace Element Content ◽  
Energy Crops ◽  
Maize Silage ◽  
Batch Tests

Anaerobic digestion is a technology which is used to produce methane from organic solids and energy crops. Especially in recent years, the fermentation of energy crops has become more and more important because of increasing costs for energy and special benefits for renewable energy sources in Germany. Anaerobic bacteria require macro and micro nutrients to grow. Absence of these elements can inhibit the anaerobic process significantly. In particular mono-substrates like maize or certain industrial wastewater often cannot provide all required nutrients. For this reason this research investigates the influence of substrate and trace elements on anaerobic digestion in detail. Different agricultural anaerobic biomasses are analysed with special regard to their trace element content. Based on these results, the influence of three trace elements (iron, cobalt, and nickel) on anaerobic digestion was studied in anaerobic batch tests at different sludge loading rates and for different substrates (maize and acetate). Biogas production was found to be 35% for maize silage and up to 70% higher for acetate with trace element dosage than in the reference reactor.

Trace element supplementation in the biogas production from wheat stillage – Optimization of metal dosing

2014 ◽  
Vol 168 ◽  
pp. 80-85 ◽  
Author(s):  
Thomas Schmidt ◽  
Michael Nelles ◽  
Frank Scholwin ◽  
Jürgen Pröter
Keyword(s):  
Trace Element ◽  
Biogas Production

scholarly journals A review of anaerobic landfill bioreactor using leachate recirculation to increase methane gas recovery

2021 ◽  
Vol 894 (1) ◽  
pp. 012013
Author(s):  
M A Budihardjo ◽  
B S Ramadan ◽  
E Yohana ◽  
Syafrudin ◽  
F Rahmawati ◽  
...  
Keyword(s):  
Alternative Energy ◽  
Ph Value ◽  
Biogas Production ◽  
Future Research ◽  
Leachate Recirculation ◽  
Methane Gas ◽  
Gas Recovery ◽  
Development Plans ◽  
Waste Degradation ◽  
The Relationship

Abstract Municipal Solid Waste (MSW) treatment with anaerobic landfill bioreactor utilizes landfill as a place of biodegradation and produces methane gas which can be used as renewable alternative energy source. Anaerobic landfill bioreactor technology is a landfill development method that can increase waste degradation and increase biogas production. The increase of biogas and the removal of pollutants from leachate needs to pay attention to the factors that influence the success of anaerobic landfill bioreactor, including pH value, temperature, water content, and COD concentration after recirculation, and methane production. The relationship between these factors was discussed in depth in this paper. The method used is a narrative review where metadata is obtained from Google Scholar and Web of Science. This study explains the development of an anaerobic landfill bioreactor and conducts a synthesis for future research development plans by leachate recirculation.

scholarly journals The feasibility of trace element supplementation for stable operation of wheat stillage-fed biogas tank reactors

2011 ◽  
Vol 64 (2) ◽  
pp. 320-325 ◽  
Author(s):  
J. Gustavsson ◽  
B. H. Svensson ◽  
A. Karlsson
Keyword(s):  
Trace Element ◽  
Hydraulic Retention Time ◽  
Loading Rate ◽  
Biogas Production ◽  
Organic Loading Rate ◽  
Stable Operation ◽  
Organic Loading ◽  
Process Stability ◽  
Volatile Solids ◽  
High Sulfate

The aim of this study was to investigate the effect of trace element supplementation on operation of wheat stillage-fed biogas tank reactors. The stillage used was a residue from bio-ethanol production, containing high levels of sulfate. In biogas production, high sulfate content has been associated with poor process stability in terms of low methane production and accumulation of process intermediates. However, the results of the present study show that this problem can be overcome by trace element supplementations. Four lab-scale wheat stillage-fed biogas tank reactors were operated for 345 days at a hydraulic retention time of 20 days (37 °C). It was concluded that daily supplementation with Co (0.5 mg L−1), Ni (0.2 mg L−1) and Fe (0.5 g L−1) were required for maintaining process stability at the organic loading rate of 4.0 g volatile solids L−1 day−1.

scholarly journals Trace Element Supplementation and Enzyme Addition to Enhance Biogas Production by Anaerobic Digestion of Chicken Litter

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3477
Author(s):  
Navodita Bhatnagar ◽  
David Ryan ◽  
Richard Murphy ◽  
Anne-Marie Enright
Keyword(s):  
Anaerobic Digestion ◽  
Trace Element ◽  
Biogas Production ◽  
Positive Control ◽  
Negative Control ◽  
Enzyme Treatment ◽  
Small Scale ◽  
Volatile Solids ◽  
Chicken Litter ◽  
Set Up

Anaerobic digestion (AD) of chicken litter (CL) is a viable alternative to disposal. However, methane yields from this primarily organic waste are quite low when mono-digested. This paper discusses the effect of an enzyme cocktail, trace element (TE) supplementation and selenium (Se) addition in small-scale batch biomethane potential (BMP) assays to enhance the AD of CL. Eleven different assays were set up in triplicate including assays containing only inoculum (blank), only CL (negative control) and cellulose and inoculum (positive control). The results indicate that both enzyme treatment and trace element supplementation enhanced the biogas and methane yield. The highest specific biogas and methane yields were noted for 1% enzyme-treated CL of 835.2 L/kg volatile solids (VS) and 460.8 L/kg VS, respectively. Usually, mono-digestion of CL is low due to high nitrogen content and the presence of recalcitrant lignocellulosic material from the bedding material. Enzyme treatment performed better than the addition of the TE mix and Se.

The environmental effect of substituting energy crops for food waste as feedstock for biogas production

Energy ◽  
2017 ◽  
Vol 137 ◽  
pp. 1130-1143 ◽  
Author(s):  
Lucía Lijó ◽  
Sara González-García ◽  
Jacopo Bacenetti ◽  
Maria Teresa Moreira
Keyword(s):  
Food Waste ◽  
Environmental Effect ◽  
Biogas Production ◽  
Energy Crops

scholarly journals Biogas Production from Palm Oil Fruit Bunch in Anaerobic Biodigester through Liquid State (LS-AD) and Solid State (SS-AD) Method

2018 ◽  
Vol 156 ◽  
pp. 03043 ◽  
Author(s):  
Bakti Jos ◽  
Hanif Farhan ◽  
Nadia Dwi Ayu ◽  
Budiyono ◽  
Siswo Sumardiono
Keyword(s):  
Solid State ◽  
Palm Oil ◽  
Alternative Energy ◽  
Microbial Consortium ◽  
Biogas Production ◽  
Energy Resource ◽  
Total Solid ◽  
Raw Material ◽  
Solid State Method ◽  
Daily Production

The crucial problem facing the world today is energy resources. Waste production of palm oil fruit bunch potentially produce as renewable energy resource. Palm oil fruit bunch contains 44% cellulose, 18% lignin and 34% hemicellulose. Organic carbon source is contained in biomass potentially produce biogas. Biogas is one of alternative energy, which is environmentally friendly and has been widely developed. This research is aimed to examine the effect of pretreatment in raw material of waste palm oil fruit bunch for the production of biogas, the effect of time, ratio C/N, and effect of microbial consortium. The variables are total solid (TS) used 10% and 18% with a 40 mesh physical pretreatment, chemical pretreatment with NaOH 8% gr / gr TS, and biology 5% g/vol with microbial consortium. Biogas production process was conducted over 2 months in room temperature, the test response quantitative results in the form of biogas volume every 2 days and also flame test. The result of this research shows that the highest daily production rate of biogas obtained from this study was 5,73 ml/gr TS and the highest biogas production accumulation generated at 58,28 ml/gr TS produced through a 40 mesh sieve of waste oil palm empty fruit bunch, immersion in NaOH, through solid state fermentation and C/N 30. From this research, it can be concluded that the optimum production of biogas formation occurs with the value of C/N 30, physical and biological pretreatment, and solid state method.

scholarly journals Biogas Production from Anaerobic Digestion of Biodegradable Household Wastes

1970 ◽  
Vol 11 ◽  
pp. 167-172 ◽  
Author(s):  
Harka Man Lungkhimba ◽  
Amrit Bahadur Karki ◽  
Jagan Nath Shrestha
Keyword(s):  
Alternative Energy ◽  
Biogas Production ◽  
Gas Production ◽  
Biogas Plant ◽  
Waste Materials ◽  
Household Level ◽  
Fertilizer Value ◽  
Average Maximum ◽  
Cellulosic Waste ◽  
In The Beginning

This study focuses on production of biogas as an alternative energy by using biodegradable wastes (BWs) in view of solving waste management at household level. The research was conducted on ARTI model compact biogas plant of 1 m3 digester and 0.75 m3 gasholder in focusing the management of daily collected biodegradable wastes (1-2 kg) produced from households. Both laboratory and field analyses were carried out. Methane content in biogas was determined by Biogas Analyzer Gas Board-3200P. Average maximum of about 235 l gas was recorded per day with corresponding to 65 min/day burning hour with the gas flame of energy value 1.55 MJ/h. According to the plant owners, the burning period of the gas was approximately 2 h/day during the spring and pre-monsoon seasons. The average gas production (per kg) from fresh waste materials was approximately 60 l. The use of high moisture containing cellulosic waste materials and incomplete digestion due to lower digester temperature were the major causes of lower gas yield. The proportion of methane exceeded by carbondioxide in the beginning but then after gradually methane exceeded carbondioxide and reached 56.43% on an average. Although fertilizer value in terms of NPK increased gradually but it remained below 1% except K, which was found to be 1.22%. Simple payback periods of 4.81, 7.57 and 7.20 years were found in kerosene, firewood, and LPG substitutions respectively. Key words: alternative energy; biogas analyzer; compact biogas plant; methane; simple payback period DOI: 10.3126/njst.v11i0.4140Nepal Journal of Science and Technology 11 (2010) 167-172

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