ENHANCEMENT OF BIOGAS PRODUCTION FROM FOOD WASTES IN A HYBRID ANAEROBIC-AEROBIC BIOREACTOR BY MANURE ADDITION AND LIME-PRETREATMENT OF RECYCLED LEACHATE

2019 ◽  
Vol 18 (12) ◽  
pp. 2673-2682 ◽  
Author(s):  
Hatam Godini ◽  
Fatemeh Aliasgari ◽  
Mohammad Noorisepehr ◽  
Navid Tafreshi
Keyword(s):  
Biogas Production ◽  
Food Wastes ◽  
Lime Pretreatment

scholarly journals A Pilot Plant Study on the Autoclaving of Food Wastes for Resource Recovery and Reutilization

2018 ◽  
Vol 10 (10) ◽  
pp. 3566
Author(s):  
Chia-Chi Chang ◽  
Yen-Hau Chen ◽  
Yi-Shiou Lin ◽  
Zang-Sei Hung ◽  
Min-Hao Yuan ◽  
...  
Keyword(s):  
Pilot Plant ◽  
Biogas Production ◽  
Liquid Product ◽  
Resource Recovery ◽  
Food Wastes ◽  
Air Pollution Control ◽  
Materials Management ◽  
Bulk Volume ◽  
Pilot Plant Scale ◽  
Liquid Condensate

Autoclaving of food wastes (FW) for the resource recovery and reutilization was studied using the pilot plant scale. Experiments were conducted at various temperatures of 408, 428, and 438 K and times of 15 and 60 min. The in-filled steam to the autoclave was supplied by the incineration plant with a gauge pressure of 7 kg/cm2 and a temperature of 443 K or above. The results obtained from the experiments show that the less energy- and time-consuming autoclaving conditions (408 K and 15 min, denoted as Case A408-15) are effective. Comparisons of the properties and characteristics of autoclaved FW (FWA) of Case A408-15 with those of FW are made. The wet bulk volume and wet bulk density of FW A are dramatically reduced to 15.64% and increased to 313.37% relative to those of FW, respectively. This makes the subsequent processing and reuse for FWA more convenient than FW. The autoclaving results in an increase of carbon content and a decrease of nitrogen content, and thus an increase of the C/N ratio of FWA. The contents of sulfur, hemi-cellulose, and cellulose of FWA are also reduced. All these fluctuations are beneficial for making compost or other usages from FWA than FW. The autoclaved liquid product (LA) separated from FWA and liquid condensate (LC) from the released gas possess high COD and TOC. These two liquids can be mixed for use as liquid fertilizers with proper conditioning. Alternatively, further anaerobic digestion of the mixture of FWA, LA, and LC can offer enhanced biogas production for power generation. All these thus match the appeal of sustainable materials management and circular economy. The emitted gas from autoclaving contains no CO and some hydrocarbons. Suitable air pollution control is needed. The results and information obtained are useful for the proper recovery and reuse of abundant food wastes from domestic households and food industries.

Anaerobic Digestion of Selected Food Wastes for Biogas Production

2009 ◽  
Author(s):  
Xiguang Chen ◽  
Rowena Tangonan Romano ◽  
Ruihong Zhang ◽  
Hyo-Sun Kim
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Food Wastes

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

An analysis of metal concentrations in food wastes for biogas production

2015 ◽  
Vol 77 ◽  
pp. 467-472 ◽  
Author(s):  
Marta Bożym ◽  
Iwona Florczak ◽  
Paulina Zdanowska ◽  
Janusz Wojdalski ◽  
Marek Klimkiewicz
Keyword(s):  
Biogas Production ◽  
Food Wastes ◽  
Metal Concentrations

Kinetics assessment and modeling of biogas production by anaerobic digestion of food wastes and acclimated sewage sludge

2021 ◽  
Author(s):  
Laís Roberta Galdino de Oliveira ◽  
Derovil Antonio dos Santos Filho ◽  
Tiago José Marques Fraga ◽  
José Fernando Thomé Jucá ◽  
Maurício Alves da Motta Sobrinho
Keyword(s):  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Biogas Production ◽  
Food Wastes

Biogas production from food wastes: A review on recent developments and future perspectives

2019 ◽  
Vol 7 ◽  
pp. 100202 ◽  
Author(s):  
Safoora Mirmohamadsadeghi ◽  
Keikhosro Karimi ◽  
Meisam Tabatabaei ◽  
Mortaza Aghbashlo
Keyword(s):  
Biogas Production ◽  
Food Wastes ◽  
Future Perspectives ◽  
Recent Developments
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