Improving methane yield and quality via co-digestion of cow dung mixed with food waste

2018 ◽  
Vol 251 ◽  
pp. 259-263 ◽  
Author(s):  
Sanjeev Kumar Awasthi ◽  
Rutu Joshi ◽  
Hiya Dhar ◽  
Shivpal Verma ◽  
Mukesh Kumar Awasthi ◽  
...  
Keyword(s):  
Food Waste ◽  
Methane Yield ◽  
Cow Dung ◽  
Yield And Quality

Anaerobic Co-Digestion of Sugarcane Leaves, Cow Dung, and Food Waste: Focus on Methane Yield and Synergistic Effects

2021 ◽  
Author(s):  
Sunqiang Xu ◽  
Guican Bi ◽  
Xiangmeng Liu ◽  
Qiang Yu ◽  
Dong Li ◽  
...  
Keyword(s):  
Food Waste ◽  
Synergistic Effects ◽  
Methane Yield ◽  
Cow Dung

Dry anaerobic co-digestion of food waste and cattle manure: Impact of total solids, substrate ratio and thermal pre treatment on methane yield and quality of biomanure

2018 ◽  
Vol 253 ◽  
pp. 273-280 ◽  
Author(s):  
Vijayalakshmi Arelli ◽  
Sameena Begum ◽  
Gangagni Rao Anupoju ◽  
Kranti Kuruti ◽  
Shailaja S.
Keyword(s):  
Food Waste ◽  
Cattle Manure ◽  
Methane Yield ◽  
Total Solids ◽  
Yield And Quality ◽  
Substrate Ratio ◽  
Pre Treatment

Generation and analysis of biogas from kitchen waste at a small scale

2020 ◽  
pp. 140-148
Author(s):  
Md. Kumail Naqvi ◽  
Mrinal Anthwal ◽  
Ravindra Kumar
Keyword(s):  
Food Waste ◽  
Total Solid ◽  
Small Scale ◽  
Cow Dung ◽  
Retention Period ◽  
Household Level ◽  
Replacement Model ◽  
The Everyday ◽  
Scale Experiment ◽  
Small Period

Biogas is the product of anaerobic vitiation of biodegradable matter. This paper focuses on the need of alternative and green sources of energy at a household level and how biogas produced from the everyday organic waste has the potential and possibility to replace LPG cylinders at houses, shops etc. and empower us to step towards an eco-friendly future. The purpose this small-scale experiment has been to find the perfect input matter that is easy to acquire and which produces the maximum amount of gas from minimum input and within small period of waste retention. Four different types of input waste material containing different quantities of cow dung and kitchen food waste were studied through individual experimental setups. Waste was mixed and kept at room temperature and the pH and total solid concentration of the samples were recorded on regular intervals. From the experiment it was found that the optimum yield of biogas at a small scale, based on the parameters such as retention period, pH and total solid con-centration can be obtained by the use of food waste form households and kitchens. The exact composition has been discussed in this paper. The energy generated by the small-scale generator has also been compared to that of an LPG cylinder and an LPG replacement model has also been presented.

scholarly journals A state of the art literature review on anaerobic digestion of food waste: influential operating parameters on methane yield

2017 ◽  
Vol 16 (2) ◽  
pp. 347-360 ◽  
Author(s):  
Dimitrios Komilis ◽  
Raquel Barrena ◽  
Rafaela Lora Grando ◽  
Vasilia Vogiatzi ◽  
Antoni Sánchez ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Literature Review ◽  
Food Waste ◽  
State Of The Art ◽  
Methane Yield ◽  
Operating Parameters

scholarly journals Significance of Pretreatment in Enhancing the Performance of Dry Anaerobic Digestion of Food Waste: An Insight on Full Scale Implementation Strategy with Theoretical Analogy

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1018
Author(s):  
Vijayalakshmi Arelli ◽  
Sudharshan Juntupally ◽  
Sameena Begum ◽  
Gangagni Rao Anupoju
Keyword(s):  
Anaerobic Digestion ◽  
Food Waste ◽  
Scale Up ◽  
Methane Yield ◽  
Net Energy ◽  
Time Duration ◽  
Methane Generation ◽  
Pre Treatment ◽  
The Impact ◽  
Dry Anaerobic Digestion

The aim of this study was to treat food waste containing 25% total solids (TS) through dry anaerobic digestion (dry AD) process at various pressures (0.5 to 2.5 kg/cm2) and different time duration (20 to 100 min) to understand the impact of pretreatment in enhancing the methane generation potential along with insights on scale up. The findings revealed that vs. reduction and methane yield of 60% and 0.25 L CH4/(g VSadded) can be achieved with pretreated food waste at two kilograms per square centimeter, while pretreatment of food waste at 2 kg/cm2 for 100 min enhanced the vs. reduction from 60% to 85% and methane yield from 0.25 to 0.368 L CH4/(g VSadded). However, the net energy indicated that 40 min of pre -treatment at two kilograms per square centimeter can be a suitable option as methane yield and vs. reduction of 0.272 L CH4/(g VSadded) and 70%, respectively was achieved. The vs. reduction and the methane yield of 45% and 0.14 L CH4/(g VSadded), respectively was obtained from untreated food waste which illustrated that pretreatment had significantly impacted on the enhancement of methane generation and organic matter removal which can make the dry AD process more attractive and feasible at commercial scale.

scholarly journals Effect Of Soil And Foliar Applications Of Zinc And Iron On The Yield And Quality Of Onion (Allium cepa L.)

2013 ◽  
Vol 38 (1) ◽  
pp. 41-48
Author(s):  
AP Trivedi ◽  
KN Dhumal
Keyword(s):  
Foliar Spray ◽  
Growth Yield ◽  
Poor Quality ◽  
Research Centre ◽  
Cow Dung ◽  
Yield And Quality ◽  
Allium Cepa L ◽  
Zinc Application ◽  
Bulb Yield

A field experiment was carried out at the research farm of National Research Centre for Onion and Garlic, Manjari, Pune (Maharashtra), India during kharif season of 2004 and 2005 to find out the effect of application of zinc and iron and their different modes of applications on growth, yield, and quality of onion. There were 27 treatment combinations with Zn and Fe were applied either in the soil or as foliar spray with cow dung slurry/FYM/gibbrelic acid/amino acids/2,4- D to onion. Application of Zn significantly increased the bulb weight (73.9 g), bulb yield (45 t/ha) when applied with 2,4-D (3 ppm) as foliar spray. Zinc application significantly influenced the bulb quality and recorded the highest ‘A’ grade bulbs and the lowest poor quality ‘C’ grade bulbs when applied with 2,4-D (81.9%) as foliar spray. The maximum medium ‘B’ grade bulbs were obtained with the application of Fe with cow dung slurry (11.4%). Bangladesh J. Agril. Res. 38(1): 41-48, March 2013 DOI: http://dx.doi.org/10.3329/bjar.v38i1.15188

Reproductive Potential and Nutritional Composition of Hermetia illucens (Diptera: Stratiomyidae) Prepupae Reared on Different Organic Wastes

2019 ◽  
Vol 113 (1) ◽  
pp. 527-537 ◽  
Author(s):  
Sheng Yin Wang ◽  
Lingli Wu ◽  
Baoling Li ◽  
Dayu Zhang
Keyword(s):  
Food Waste ◽  
Reproductive Potential ◽  
Organic Wastes ◽  
Nutrient Composition ◽  
Biodiesel Production ◽  
Chicken Manure ◽  
Intrinsic Rate Of Increase ◽  
Pig Manure ◽  
Cow Dung ◽  
Hermetia Illucens

Abstract Hermetia illucens L. (the black soldier fly) has received increased attention because of its great potential in converting organic waste into a renewable resource. The prepupae have high proportions of proteins and fats and can serve as feedstuff for livestock and as feedstock for biodiesel production. With the goal to upgrade the conversion of low-value organic wastes into high-value proteins and fat on a large scale, the effects of the feedstuffs food waste, pig manure, chicken manure, and cow dung on the reproductive potential and nutrient composition of H. illucens were evaluated. The intrinsic rate of increase of H. illucens fed food waste (0.1249 d−1) was significantly greater than the rate of those fed pig manure (0.1167 d−1), chicken manure (0.1154 d−1), and cow dung (0.1049 d−1). The ash content of H. illucens fed food waste (30.8 g·kg−1 lyophilized prepupa matter (LPM)) was significantly lower than that of those fed chicken manure (37.6 g·kg−1 LPM) and cow dung (49.5 g·kg−1 LPM). The contents of crude fat, 372.4 g·kg−1 LPM, and protein, 436.9 g·kg−1 LPM, in prepupae fed food waste were the highest among the four treatments. The reproductive performance and prepupal nutrient composition indicated that food waste was the most suitable feed for H. illucens. The results from this study further demonstrate that the prepupae of H. illucens have great potential for use as a protein and fat source in animal feeds and as biodiesel material.

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