Energy Generation Potential in Greece From Agricultural Residues and Livestock Manure by Anaerobic Digestion Technology

Laying aside manure meat, milk and egg is considered as key performance indicator of livestock farm profitability of Bangladesh till yet whereas manure contains minimum 45-55% feed nutrient fed to animals. A survey based research work was conveyed to find out the major channel of using this valuable livestock manure by farmers from twelve selected district of Bangladesh. Results showed that most of the cattle and buffalo farmers prefer solid storage system to manage their manure. From this stored manure, about 35% was used for land fertilization, 47% for burning fuel preparation, 8% for composting and remaining 10% become completely wasted. A very few of cattle manure (4.65) was utilized by the care of anaerobic digestion. But this improved system was completely absent in case of buffalo and small ruminants manure management. Dung produced from small ruminants fully goes for solid piling. About 20% of poultry manure managed in improved way and the remaining portion was mostly utilized in a very disparage way. In anaerobic digestion system, the produced gas went for home consumption and bio-slurry creates havoc for both farmer and environment. Land fertilization and aquaculture coves its utilization but the amount is too low compared to its production. Above 52% of total bio-slurry become wasted due to limited knowledge and lack of appropriate handling techniques. The scenario of urine and liquid slurry management was very melancholic. About 0.37 and 0.203 kg methane emission per head per year was calculated from solid storage system of cattle and small ruminant animal manure. The value is also high in burning fuel preparation (5.46 kg) and liquid slurry (5.81 kg) and a bit low in anaerobic digestion system (1.24 kg) per head per year. Asian J. Med. Biol. Res. March 2019, 5(1): 63-70

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Degradation of veterinary antibiotics during anaerobic digestion of dairy manure

Water Practice & Technology ◽

10.2166/wpt.2015.061 ◽

2015 ◽

Vol 10 (3) ◽

pp. 532-537 ◽

Cited By ~ 3

Author(s):

Yumika Kitazono ◽

Ikko Ihara ◽

Kiyohiko Toyoda ◽

Kazutaka Umetsu

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Dairy Manure ◽

Antibiotic Residues ◽

Veterinary Antibiotics ◽

Livestock Manure ◽

Anaerobic Digestion Process ◽

Digestion Process ◽

Antibiotic Degradation

This study evaluated antibiotic degradation and biogas production during anaerobic digestion of dairy manure contained two common veterinary antibiotics at 37 °C. After 18 days of digestion, the concentration of chlortetracycline (CTC) decreased more than 80% regardless of the initial CTC concentration. The concentration of cefazolin (CEZ) decreased from 10 to 0.08 mg/L in 6 days. Less than 50 mg/L CTC and 10 mg/L CEZ had negligible impact on biogas production during anaerobic digestion process. The result showed that the anaerobic digestion has a potential to degrade antibiotic residues in livestock manure.

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Assessing the Theoretical Prospects of Bioethanol Production as a Biofuel from Agricultural Residues in Bangladesh: A Review

Sustainability ◽

10.3390/su12208583 ◽

2020 ◽

Vol 12 (20) ◽

pp. 8583

Author(s):

Monirul Islam Miskat ◽

Ashfaq Ahmed ◽

Hemal Chowdhury ◽

Tamal Chowdhury ◽

Piyal Chowdhury ◽

...

Keyword(s):

Crop Residues ◽

Energy Generation ◽

Alternative Fuel ◽

Spark Ignition ◽

Agricultural Residues ◽

Spark Ignition Engine ◽

Bioethanol Production ◽

Comparable Performance ◽

Performance Results

This study reviewed the aspects of the production of bioethanol from the agricultural residues available in Bangladesh. The crop residues such as rice, wheat, sugarcane, corn, cotton, jute, and sugarcane have great potential for energy generation in a sustainable and eco-friendly way in Bangladesh, as these residues are available in large quantities. Bioethanol is an alternative fuel to gasoline that provides comparable performance results. Bioethanol from these residues can be used for transportation purposes, as it does not require any major modifications to the spark-ignition engine configuration when using E5 blend (5% Ethanol mixed with 95% of the gasoline). In Bangladesh, approximately 65.36 Mt of agricultural residues are available from the major crops, from which 32 Mt bioethanol can be generated. This study is expected to provide useful concise data with regards to the beneficial utilization of agricultural residues for bioethanol production in Bangladesh.

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