Influence of sodium bicarbonate (NaHCO3) on the methane generation potential of organic food waste

2021 ◽  
pp. 128390
Author(s):  
Rebeca Beltrão Valença ◽  
Liliana Andréa dos Santos ◽  
Alessandra Lee Barbosa Firmo ◽  
Leandro César Santos da Silva ◽  
Talita Vasconcelos de Lucena ◽  
...  
Keyword(s):  
Sodium Bicarbonate ◽  
Food Waste ◽  
Organic Food ◽  
Methane Generation

scholarly journals Organic Waste Management in Canada: Building a Sustainable Circular Economy

2019 ◽  
Vol 11 (1) ◽  
pp. 84-92
Author(s):  
Alja Perger
Keyword(s):  
North America ◽  
Waste Management ◽  
Food Waste ◽  
Organic Waste ◽  
Research Question ◽  
Organic Food ◽  
Main Research ◽  
Organic Waste Management ◽  
The Moment ◽  
Resource Input

North America is a big consumer and consequently a big producer of waste. For the purpose of this project, we were primarily interested in collecting information in North America, focusing on Quebec primarily. The main research question was risen up during the fieldwork and assistance with the Canadian company. It clearly presents the enterprise readiness for obtaining a smart solution on organic/food waste problem. It is believed, how organic/food waste can be a resource of a high value. There is a capacity of creating a new path, where organic/food waste could become the important as plant/field nutrient supply. The circular approach to organic waste management is urgently needed in a way how the organic waste should be reduced and returned as productive resource input into our economy. The paper presents a new value towards a sustainability process that Canada is building at the moment. It represents the innovative approach, which is highly accepted in some cities in Quebec with the obtained pilot projects and excellent results. This paper is not only a simple research paper, but it is also the very important original innovative document which can be highly used on the level of each municipality, region and federal level.

A model based on feature objects aided strategy to evaluate the methane generation from food waste by anaerobic digestion

2018 ◽  
Vol 72 ◽  
pp. 218-226 ◽  
Author(s):  
Meijuan Yu ◽  
Mingxing Zhao ◽  
Zhenxing Huang ◽  
Kezhong Xi ◽  
Wansheng Shi ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Food Waste ◽  
Methane Generation ◽  
Model Based

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.

Co-pyrolysis characteristics and kinetic analysis of organic food waste and plastic

2018 ◽  
Vol 249 ◽  
pp. 16-23 ◽  
Author(s):  
Yijing Tang ◽  
Qunxing Huang ◽  
Kai Sun ◽  
Yong Chi ◽  
Jianhua Yan
Keyword(s):  
Kinetic Analysis ◽  
Food Waste ◽  
Organic Food ◽  
Pyrolysis Characteristics

Study of Biogas Production from Wastes in Military Areas

2014 ◽  
Vol 953-954 ◽  
pp. 246-250
Author(s):  
Apina Chanthakett ◽  
Supawat Vivanpatarakij
Keyword(s):  
Food Waste ◽  
Dry Matter ◽  
Manufacturing System ◽  
Biogas Production ◽  
Generation Rate ◽  
Experimental Temperature ◽  
Pig Manure ◽  
Food Wastes ◽  
Methane Generation ◽  
The Third

The study of biogas production was conducted to find effective fermentation which will enhance digester gas manufacturing system and reduce waste in military areas. Co-digester between food wastes with pig manure was studied. The experiment was divided into three proportions of food waste and manure based on dry matter mass. The first is 100:0 which contains 26 kg. of food waste. The second is 85:15 which was composed of 22 kg. of food per 4 kg. of pig manure. And the third is 70:30 which contains 18 kg. of food per 8 kg. of pig manure. Leavening agent for digester came from pig manure. The 21 day experiment was carried out to collect and analyze biogas samples. According to these results, the proportion 85:15 produced a large quantity of biogas which was 1,134 liters. Methane generation rate is increasing and hydrogen is also high as 32.26%. The heating reached the highest value at 1.491 MJ. or 3.189 times compared to the proportion 100:0 in the experimental temperature of 31-33 °C

scholarly journals Progressive Two-Stage Efficient Codigestion of Food Waste and Petrochemical Wastewater for Higher Methane and Hydrogen Production

2019 ◽  
Vol 31 (11) ◽  
pp. 2575-2578
Author(s):  
M.N.I. Siddique ◽  
B.K. Zaied ◽  
M.N. Kabir ◽  
M.F. Ahmad
Keyword(s):  
Food Waste ◽  
Waste Treatment ◽  
Phase System ◽  
Petrochemical Wastewater ◽  
Two Phase ◽  
Methane Generation ◽  
Anaerobic Codigestion ◽  
Continuous Feeding ◽  
Anaerobic System ◽  
The Ideal

The valorization of agro-modern waste through anaerobic codigestion signifies a remarkable prospect for waste treatment and sustainable energy source generation. This study intended to improve the codigestion of food waste and petrochemical wastewater by an advanced two-phase process. In view of concentric acidogenic and methanogenic stages, intended for upgrading execution and diminishing pollution. The ideal food waste to petrochemical wastewater proportion was assessed under batch operations. From that point, codigestion was carried out by continuous feeding operations weighting single-and two-phase digestions. The outcomes exhibited that the supplementation of petrochemical wastewater in codigestion with food waste incredibly improved the anaerobic system. The maximum methane generation was acquired codigesting the two wastes at equivalent proportion by utilizing the creative two-phase system. The proposed framework achieved the highest methane production of 259 mL/g volatile solid, which is more than double than the single-phase system and 11 % greater than that of conventional two-phase system.

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