Characterisation of chemical composition and energy content of green waste and municipal solid waste from Greater Brisbane, Australia

Hla, San Shwe; Roberts, Daniel G.

doi:10.1016/j.wasman.2015.03.039

Cited by 114 publications

(44 citation statements)

References 20 publications

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“…According to the results obtained, a maximum potential energy generation of 22 MJ kg À1 (VS) can be achieved by using a two-step process (dark fermentation and anaerobic digestion) for the conversion of GW. This value compares well with the energy content of green waste (Hla and Roberts, 2015). Kongjan et al (2011) found an increased energy conversion from only 7.5% in the hydrogen stage to 87.5% of the potential energy, in a similar two-step process, corresponding to total energy of 13.4 MJ kg À1 of wheat straw hydrolysate.…”

Section: Methane Production and Biohythanesupporting

confidence: 75%

Boosting dark fermentation with co-cultures of extreme thermophiles for biohythane production from garden waste

Abreu

Tavares

Alves

et al. 2016

Bioresource Technology

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Proof of principle of biohythane and potential energy production from garden waste (GW) is demonstrated in this study in a two-step process coupling dark fermentation and anaerobic digestion. The synergistic effect of using co-cultures of extreme thermophiles to intensify biohydrogen dark fermentation is demonstrated using xylose, cellobiose and GW. Co-culture of Caldicellulosiruptor saccharolyticus and Thermotoga maritima showed higher hydrogen production yields from xylose (2.7±0.1molmol(-1) total sugar) and cellobiose (4.8±0.3molmol(-1) total sugar) compared to individual cultures. Co-culture of extreme thermophiles C. saccharolyticus and Caldicellulosiruptor bescii increased synergistically the hydrogen production yield from GW (98.3±6.9Lkg(-1) (VS)) compared to individual cultures and co-culture of T. maritima and C. saccharolyticus. The biochemical methane potential of the fermentation end-products was 322±10Lkg(-1) (CODt). Biohythane, a biogas enriched with 15% hydrogen could be obtained from GW, yielding a potential energy generation of 22.2MJkg(-1) (VS).

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Section: Methane Production and Biohythanesupporting

confidence: 75%

Boosting dark fermentation with co-cultures of extreme thermophiles for biohythane production from garden waste

Abreu

Tavares

Alves

et al. 2016

Bioresource Technology

View full text Add to dashboard Cite

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“…The A was the mass of residue after burning. After that, FC can be calculated as follows 24 FC% ¼ 100…”

Section: Biomass Characterisationmentioning

confidence: 99%

Evaluation of the higher heating value, volatile matter, fixed carbon and ash content of ground bamboo using near infrared spectroscopy

Posom

Sirisomboon

2017

Journal of Near Infrared Spectroscopy

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This research aimed to determine the higher heating value, volatile matter, fixed carbon and ash content of ground bamboo using Fourier transform near infrared spectroscopy as an alternative to bomb calorimetry and thermogravimetry. Bamboo culms used in this study had circumferences ranging from 16 to 40 cm. Model development was performed using partial least squares regression. The higher heating value, volatile matter, fixed carbon and ash content were predicted with coefficients of determination (r 2) of 0.92, 0.82, 0.85 and 0.51; root mean square error of prediction (RMSEP) of 122 J g À1 , 1.15%, 1.00% and 0.77%; ratio of the standard deviation to standard error of validation (RPD) of 3.66, 2.55, 2.62 and 1.44; and bias of 14.4 J g À1 , À0.43%, 0.03% and À0.11%, respectively. This report shows that near infrared spectroscopy is quite successful in predicting the higher heating value, and is usable with screening for the determination of fixed carbon and volatile matter. For ash content, the method is not recommended. The models should be able to predict the properties of bamboo samples which are suitable for achieving higher efficiency for the biomass conversion process.

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“…Any standard measurement of calorific (heating) value using laboratory apparatus, such as a bomb calorimeter at constant volume, returns the gross heating value (higher heating value on a dry basis, HHV) [25]. For calorific value analyses, approximately 5 kg waste samples were randomly selected from the characterized wastes.…”

Section: Calorific Value and Moisture Content Analysismentioning

confidence: 99%

Municipal Solid Waste Characterization According to Different Income Levels: A Case Study

et al. 2016

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Solid waste generation and characterization are some of the most important parameters which affect environmental sustainability. Municipal solid waste (MSW) characterization depends on social structure and income levels. This study aims to determine the variations in waste components within MSW mass by income levels and seasonal conditions following the analysis conducted on the characterization of solid wastes produced in the Kartal district of the province of Istanbul, which is the research area of this study. To this end, 1.9 tons of solid waste samples were collected to represent four different lifestyles (high, medium, and low income levels, and downtown) in the winter and summer periods, and characterization was made on these samples. In order to support waste characterization, humidity content and calorific value analyses were also conducted and various suggestions were brought towards waste management in line with the obtained findings. According to the results obtained in the study, organic waste had the highest rate of waste mass by 57.69%. Additionally, significant differences were found in municipal solid waste components (MSWC) based on income level. Average moisture content (MC) of solid waste samples was 71.1% in moisture analyses. The average of calorific (heating) value (HHV) was calculated as 2518.5 kcal·kg −1 .

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Characterisation of chemical composition and energy content of green waste and municipal solid waste from Greater Brisbane, Australia

Cited by 114 publications

References 20 publications

Boosting dark fermentation with co-cultures of extreme thermophiles for biohythane production from garden waste

Boosting dark fermentation with co-cultures of extreme thermophiles for biohythane production from garden waste

Evaluation of the higher heating value, volatile matter, fixed carbon and ash content of ground bamboo using near infrared spectroscopy

Municipal Solid Waste Characterization According to Different Income Levels: A Case Study

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