Investigation of the accumulation of aromatic compounds during biogas production from kitchen waste

2009 ◽  
Vol 100 (2) ◽  
pp. 654-658 ◽  
Author(s):  
C. Hecht ◽  
C. Griehl
Keyword(s):  
Aromatic Compounds ◽  
Biogas Production ◽  
Kitchen Waste

scholarly journals Comparison of Household and Communal Biogas Digester Performance to Treat Kitchen Waste, Case Study: Bandung City, Indonesia

2018 ◽  
Vol 73 ◽  
pp. 01019
Author(s):  
Elisabeth Rianawati ◽  
Enri Damanhuri ◽  
Marisa Handajani ◽  
Tri Padmi
Keyword(s):  
Organic Waste ◽  
Open Space ◽  
Biogas Production ◽  
Daily Basis ◽  
Kitchen Waste ◽  
Anaerobic Digesters ◽  
Disposal Area ◽  
Input And Output ◽  
Biogas Productivity

Bandung City is one of the big cities in Indonesia that grappled with waste problem. There is 1,500 ton of waste produced daily, of which 65% is organic. In addition, the water content of the waste could reach 80% during rainy season, given that the waste is commonly collected in open space before transported to the final disposal area. In order to tackle this issue, the municipality of Bandung has started to implement anaerobic digesters to treat kitchen waste since 2013 in an attempt to reduce organic waste. There are three scales of bio-digesters that have been implemented: city 2 ton, communal (20-1000 kg) and household scale (20 kg), which comprise of 1 unit, 15 units and 100 units respectively. This study evaluate the efficiency and biogas productivity of each bio-digesters type. We analyzed 30 unit and 14 unit of household and communal biodigesters respectively. The waste input, slurry output and biogas production were estimated based on average of daily basis. Both the input and output of the biodigesters were characterized (TS, VS, COD) to gain further understanding. This study provide facts and figures to improve the further implementation of household bio-digesters in Bandung City.

The effect of thermochemical pre-treatment on biogas production efficiency from kitchen waste using a novel lab scale digester

2019 ◽  
Vol 28 ◽  
pp. 140-152 ◽  
Author(s):  
Farid Haghighat Shoar ◽  
Reza Abdi ◽  
Bahman Najafi ◽  
Sina Faizollahzadeh Ardabili
Keyword(s):  
Production Efficiency ◽  
Biogas Production ◽  
Kitchen Waste ◽  
Pre Treatment

scholarly journals Enhancement anaerobic digestion and methane production from kitchen waste by thermal and thermo-chemical pretreatments in batch  leach bed reactor with down flow

2018 ◽  
Vol 64 (No. 3) ◽  
pp. 128-135 ◽  
Author(s):  
Radmard Seyed Abbas ◽  
Alizadeh Hossein Haji Agha ◽  
Seifi Rahman
Keyword(s):  
Anaerobic Digestion ◽  
Microwave Irradiation ◽  
Methane Production ◽  
Biogas Production ◽  
Oxygen Demand ◽  
Lag Phase ◽  
Kitchen Waste ◽  
Gompertz Equation ◽  
Chemical Pretreatments ◽  
Pretreatment Conditions

The effects of thermal (autoclave and microwave irradiation (MW)) and thermo-chemical (autoclave and microwave irradiation – assisted NaOH 5N) pretreatments on the chemical oxygen demand (COD) solubilisation, biogas and methane production of anaerobic digestion kitchen waste (KW) were investigated in this study. The modified Gompertz equation was fitted to accurately assess and compare the biogas and methane production from KW under the different pretreatment conditions and to attain representative simulations and predictions. In present study, COD solubilisation was demonstrated as an effective effect of pretreatment. Thermo-chemical pretreatments could improve biogas and methane production yields from KW. A comprehensive evaluation indicated that the thermo-chemical pretreatments (microwave irradiation and autoclave- assisted NaOH 5N, respectively) provided the best conditions to increase biogas and methane production from KW. The most effective enhancement of biogas and methane production (68.37 and 36.92 l, respectively) was observed from MW pretreated KW along with NaOH 5N, with the shortest lag phase of 1.79  day, the max. rate of 2.38 l·day<sup>–1</sup> and ultimate biogas production of 69.8 l as the modified Gompertz equation predicted.

Study of Anaerobic Digestion of Model Kitchen Waste

2014 ◽  
Vol 955-959 ◽  
pp. 2692-2696 ◽  
Author(s):  
Li Fan Liu ◽  
Yong Wei Liao ◽  
Jie Liang ◽  
Shu Ting Lai
Keyword(s):  
Anaerobic Digestion ◽  
Carbon Concentration ◽  
Dry Matter ◽  
Biogas Production ◽  
Total Solid ◽  
Volatile Solid ◽  
Kitchen Waste ◽  
Operational Conditions ◽  
Digestion Process ◽  
Seed Sludge

The characteristics such as pH, dry matter, carbon concentration, the total solid and volatile solid of kitchen wastes produced by a canteen in Guangzhou were measured. The anaerobic digestion process performances were evaluated through the examination of operational conditions like activated sludge inoculation, temperature on SS, biogas production, COD concentration and pH in the reactor. When the proportion between kitchen wastes to seed sludge inoculation was 1:1, the biogas production reached the peak at 45 °C. The kitchen waste pH decreased at the first four days then increased adversely after 4 days digestion, but COD concentration showed the opposite variation.

Performances of Leaching-UBF Anaerobic Digestion for Biogas Production of Kitchen Waste

2014 ◽  
Vol 878 ◽  
pp. 489-495
Author(s):  
Feng Kong ◽  
Xiao Ye Zhang ◽  
Jie Hong Cheng ◽  
Zai Xin Mao ◽  
Yong Qiang Wang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Volatile Fatty Acid ◽  
Ph Value ◽  
Biogas Production ◽  
Production Performance ◽  
Kitchen Waste ◽  
Gas Generation ◽  
Methane Fermentation ◽  
Parameter Variations ◽  
Anaerobic System

The performances of leaching-upflow blanket filter (UBF) anaerobic digestion for biogas production of kitchen waste was investigated. To find out the process parameter variations of acidification phase and the methane production performance of methanogenic phase, kitchen waste from division of environment sanitation management of Changzhou was used as feedstock. The results show that the ammonia in anaerobic system cumulated continuously throughout the digestion; pH value maintained at7.6; At first the value of COD ranged from 20000 mg/L to 140000 mg/L to the final UBF water 10000mg/L to 12000 mg/L; Volatile fatty acid (VFA) reduced to 150mg/L with the increase of the days; total nitrogen increases first and then decreases, finally, it keeps at 1600 mg/L; The concentration of alkalinity increased slightly; biogas production is stable, The rate of gas generation is above0.30 m3/kgCOD . These results provide a proof of the feasibility for kitchen waste anaerobic methane fermentation.

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