Studies on the Feasibility of Producing Biogas from Rice Waste

Abstract

Biogas is considered as one of the alternative sources of energy which is used in many applications such as power generation, heating and refrigeration. The quantity and quality of biowastes vary due to the intensity and nature of human activity. Since the methane (CH4) composition in biogas is influenced by the ingredients of the biowaste, specific research is needed to check the biogas yield from locally available biowastes and to predict the usage of biogas as alternative energy in all levels. In countries like India, rice is a staple crop and the common food source for people. The food waste collected from common places like student's hostels, restaurants and houses consists of wasted rice along with other wastes of meat, fish, vegetables and fruits. In this study, analytical & experimental work was done on the biogas production from various biowastes collected from an engineering college campus. The Anaerobic Digestion Model 1 (ADM1) was used for analytical studies, and four anaerobic digesters were used in the experimental investigation. Mesophilic condition was considered for this study. From the experimental studies it is observed that the methane content in the biogas produced from rice waste, mixed rice waste, cow dung and vegetable waste are 52.01%, 52.98%, 61.13% and 51.11% respectively. The results obtained from the simulation study are also close to the experimental values.

Techno-economic evaluation of biogas production from food waste via anaerobic digestion

“…Therefore, herein the results showed that rice waste (cooked rice) could be considered as a promising source for biogas production. The above results are similar to Glivin and Sekhar 43 results, where a comparison between the feasibility of biogas production between rice and vegetable waste showed that higher biogas was produced from rice waste compared to vegetable waste. That, as stated above, is due to the higher carbohydrate content within the rice waste.…”

Characterization of kitchen and municipal organic waste for biogas production: Effect of parameters

“…Spinach had the lowest TVS of 76.59% while cabbage had the highest TVS of 96.36% ( Table 1 ). Glivian et al [ 22 ] reported the TVS for rice waste as 90.11%, while Deressa et al [ 18 ] reported 93.2% which is in accordance with the current work. Kafle et al [ 28 ] reported the highest TVS for cabbage leftover was 92.00% which is in accordance with the present work.…”

Optimizing the co-digestion supply chain of sewage sludge and food waste by the demand oriented biogas supplying mechanism

“…These studies confirmed the suitability of selected agricultural wastes for using as regulatory substrates to regulate the biogas supply. This can be attributed to the fast degradation rate and biogas production rate after feeding, due to a composition of highly water-soluble carbohydrates ( Glivin et al, 2019a ). Food waste is also a type of substrate rich in starch, polysaccharide, fatty acids, proteins, dietary fibre and other biodegradable components, which could be decomposed and utilized easily by the microbes after feeding; thus, it could be regarded as a substrate with great potential for realizing the DO mechanism ( Wang et al, 2014 ; Zhang et al, 2007 ).…”