scholarly journals Utilization of Bioslurry from Biogas Plant as Fertilizer

2019 ◽  
Vol 8 (4) ◽  
pp. 12210-12213 ◽  
Keyword(s):  
Fossil Fuels ◽  
Organic Fertilizer ◽  
Biogas Plant ◽  
Cattle Dung ◽  
Small Scale ◽  
Synthetic Fertilizers ◽  
Small Scale Farmers ◽  
The Cost ◽  
Waste Food ◽  
Effective Source

The conventional sources of energy are polluting the environment and getting depleted. The only option is renewable sources of energy like biogas. Disposal of large amount of bio gas slurry (BGS) producedis a major concern. Recycling of organic waste such as cattle dung, vegetable waste, food waste by the process of anaerobic digestion in the biogas plant (BGP) will be a great potential than producing any other fossil fuels. In many of the developing countries like India, cattle dung, crops residues will be produced in very large amount and hence it possible for producing bio gas and the bio slurry as the by-product. Hence, utilization of bio slurry as a fertilizer is an effective way. It increases the productivity of the soil. It is cheap and easily available fertilizer for the small scale farmers who could not afford in buying synthetic fertilizers. Bio slurry is nowadays being used as an effective source of fertilizer. It has high nitrogen (N), phosphorous (P) and potassium (K) that are considered to be the macro nutrients required for the flourishing growth of plants. It also contains some micro nutrients. It reduces the cost of natural organic fertilizer and increases the fertility of the soil.

scholarly journals A Threat of Farmers’ Suicide and the Opportunity in Organic Farming for Sustainable Agricultural Development in India

2019 ◽  
Vol 11 (8) ◽  
pp. 2400 ◽  
Author(s):  
Karthikeyan Mariappan ◽  
Deyi Zhou
Keyword(s):  
Organic Farming ◽  
Tamil Nadu ◽  
Agricultural Development ◽  
Small Scale ◽  
Conventional Farming ◽  
Wide Range ◽  
Significant Difference ◽  
Small Scale Farmers ◽  
The Cost ◽  
Input Cost

Agriculture is the main sources of income for humans. Likewise, agriculture is the backbone of the Indian economy. In India, Tamil Nadu regional state has a wide range of possibilities to produce all varieties of organic products due to its diverse agro-climatic condition. This research aimed to identify the economics and efficiency of organic farming, and the possibilities to reduce farmers’ suicides in the Tamil Nadu region through the organic agriculture concept. The emphasis was on farmers, producers, researchers, and marketers entering the sustainable economy through organic farming by reducing input cost and high profit in cultivation. A survey was conducted to gather data. One way analysis of variance (ANOVA) has been used to test the hypothesis regards the cost and profit of rice production. The results showed that there was a significant difference in profitability between organic and conventional farming methods. It is very transparent that organic farming is the leading concept of sustainable agricultural development with better organic manures that can improve soil fertility, better yield, less input cost and better return than conventional farming. The study suggests that by reducing the cost of cultivation and get a marginal return through organic farming method to poor and small scale farmers will reduce socio-economic problems such as farmers’ suicides in the future of Indian agriculture.

scholarly journals Environmental and economic potential of rice husk use in An Giang province, Vietnam

2017 ◽  
Vol 8 (3) ◽  
pp. 206-211
Author(s):  
Thi Mai Thao Pham
Keyword(s):  
Power Generation ◽  
Rice Husk ◽  
Life Cycle Analysis ◽  
Large Scale ◽  
Fossil Fuels ◽  
Small Scale ◽  
Emission Mitigation ◽  
Mitigation Potential ◽  
Direct Combustion ◽  
The Cost

To evaluate CO2 emission mitigation potential and cost effectiveness of rice husk utilization, Life Cycle Analysis was conducted for 9 scenarios. The results showed that, gasification is the most efficient CO2 mitigation. From cost analysis, the cost mitigation can be achieved by replacing the current fossil fuels in cooking scenarios. Among the power generation scenarios, it was found that 30MW combustion and 5MW gasification power generations were the most economically-efficient scenarios. The briquette combustion power generation appeared less cost-competitive than direct combustion, whilst the large-scale gasification scenarios and the pyrolysis scenarios give the increase in cost from the baseline. From the viewpoints of both CO2 and cost, it was indicated that the win-win scenarios can be the rice husk use for cooking, for large-scale combustion power generation, and for small-scale gasification. Để đánh giá tiềm năng giảm thiểu phát thải CO2 và hiệu quả chi phí của việc sử dụng trấu, phương pháp đánh giá vòng đời sản phẩm đã được thực hiện cho 9 kịch bản. Kết quả cho thấy, khí hóa trấu để sản xuất điện có tiềm năng giảm phát sinh khí CO2 nhiều nhất. Kết quả phân tích chi phí cho thấy việc giảm thiểu chi phí có thể đạt được khi thay thế sử dụng nhiên liệu hóa thạch trong kịch bản dùng trấu cho nấu ăn. Giữa các kịch bản về sản xuất điện, hiệu quả kinh tế cao nhất trong trường hợp đốt trực tiếp trấu để sản xuất điện ở quy mô công xuất lớn (30MW) và khí hóa ở quy mô trung bình (5MW). Trường hợp dùng củi trấu không mang lại hiệu quả kinh tế so với dùng trực tiếp trấu để phát điện. Hai trường hợp dùng trấu để sản xuất dầu sinh học và khí hóa gas công suất lớn (30MW) cho thấy chi phí tăng cao so với điều kiện biên. Kịch bản cho kết quả khả thi về hiệu quả kinh tế và giảm phát thải CO2 là dùng trấu để nấu ăn, đốt trực tiếp để phát điện công suất lớn và khí hóa công suất trung bình.

scholarly journals A Single Row Top – Lifting Carrot Crop Harvester

2020 ◽  
Vol 9 (5) ◽  
pp. 1236-1240
Keyword(s):  
Performing Arts ◽  
Small Scale ◽  
Additional Energy ◽  
Cutting Machine ◽  
Alternative Power ◽  
Human Effort ◽  
Small Scale Farmers ◽  
The Cost ◽  
User Friendly

Agriculture serves a serious role during a country's economy. The role of agriculture in economic development is crucial as a result of a majority of the population of developing countries build their living from agriculture. The most purpose of our project is to assist small scale farmers by coming up with small scale harvester machine to reap crops terribly with efficiency. Now a days, Agriculture equipment have ton of limitations and it needs additional energy to work. The crop cutting machine needs human effort associated it’s terribly cheap for social class farmer because it has no sophisticated structure and conjointly simply operated by a human. Carrot crop cutter machines doesn’t needs high maintenance. This harvester machine has 2 roller arrangement which are placed in parallel manner facing each other, combined to supply up lift torsion that may be applicable for the harvest crops like carrot, onion and radish etc. The facility unit for this machine may be a battery supply providing 12A. This power is transmitted through gear box, sprocket-chain mechanism to the roller motors and alternative power requiring mechanisms for performing arts harvest home operation. The most feature of this model is that it will save up to 70 % of energy consumption and 85 % of harvest home time. The most thought of this project is to supply a user friendly operation machines for farmers and it will cut back labor value as 1 person is enough to handle. At last the main motto is to make friendly equipment both for farmers and to our ecosystem, because the cost for labors and fuels are completely reduced.

scholarly journals Dairy Waste and Potential of Small-Scale Biogas Digester for Rural Energy in India

2021 ◽  
Vol 11 (22) ◽  
pp. 10671
Author(s):  
Prachi Pandey ◽  
Aditya Pandey ◽  
Long Yan ◽  
Dengshan Wang ◽  
Vinay Pandey ◽  
...  
Keyword(s):  
Developing Countries ◽  
Greenhouse Gases ◽  
Fossil Fuels ◽  
Rural Environment ◽  
Small Scale ◽  
Livestock Waste ◽  
Biogas Plants ◽  
Reduce Emissions ◽  
The Cost ◽  
Biogas Technology

In order to reduce emissions of greenhouse gases, related global warming and dependency on fossil fuels, it is crucial to promote the uses of renewable energy, and conversion of biomass and organic waste into energy sources. In many parts of the world, a substantial increase in efforts for the conversion of waste into energy is currently being observed. Specifically, biogas technology has been emphasized for the conversion of animal waste into biomethane/biogas because livestock waste is considered to be a substantial source of ambient greenhouse gases, causing climate change. While biogas technology, an anerobic process to convert livestock waste into biogas, is promoted in both developed and developing countries, this review article is focused on improving our existing understanding of small-scale biogas technology and relevance of this technology in rural environment of India. A thorough review research has been performed to gather the information on livestock population, manure production, and potential of biogas technology in India to provide a wholistic information. A summary of the financial supports facilitated by various agencies, the cost of biogas plants, potential uses, and potential challenges in the dissemination of biogas technology in India has been discussed in this study. We anticipate that the data and interpretation provided here will help in understanding the scope of biogas technology in India and will help in formulating the policies which will support the implementation of biogas technologies in developing countries.

scholarly journals Efficiency of digestat of biogas plants

2020 ◽  
Vol 11 (4) ◽  
pp. 107-115
Author(s):  
V. M. Polishchuk ◽  
◽  
D. A. Derevianko ◽  
S. A. Shvorov ◽  
Ye. O. Dvornik ◽  
...  
Keyword(s):  
Biogas Production ◽  
Organic Fertilizer ◽  
Arable Land ◽  
Payback Period ◽  
Biogas Plant ◽  
Available Nitrogen ◽  
Commercial Use ◽  
Biogas Plants ◽  
The Cost ◽  
The Impact

It has been established that the digestate of biogas plants is a valuable organic fertilizer that is quickly absorbed by plants, contains a complex of macro- and microelements necessary for plant growth, has a high content of readily available nitrogen for plants, has a pH level close to neutral and does not contain viable weed seeds and pathogens. microflora. It is technically difficult to make untreated digestate into the soil, so it is predivided into solid and liquid fractions on separators. A major problem with the commercial use of digestate in Ukraine is the lack of its standardization. When applying digestate to the company's own fields, which owns the biogas plant, the standardization of its quality is not critical. However, the lack of a standard for digestate as a high-quality organic fertilizer significantly limits its use. The needs for digestate were determined to restore soil fertility and fertilize crops in and with a herd of 1,000 cattle (500 heads of dairy cows and 500 heads of young cattle and heifers) and with an arable land area of 1,800 hectares. It is established that only one ton of digestate remains for commercial use after application to the fields, the profit from the sale of which does not significantly affect the profitability of biogas production. The payback period of the biogas plant is 6.4 years and depends on the cost of biogas production. With the commercial use of all digestate produced during the year, the payback period of the biogas plant is reduced to one year and below and does not depend on the cost of biogas production, and the impact of the "green" tariff on the payback period of the biogas plant is leveled.

Energy After COVID

2020 ◽  
Vol 119 (820) ◽  
pp. 317-322
Author(s):  
Michael T. Klare
Keyword(s):  
Renewable Energy ◽  
Electric Vehicles ◽  
Fossil Fuels ◽  
Fossil Fuel ◽  
White Collar ◽  
Peak Oil ◽  
Business Travel ◽  
Reduce Energy Consumption ◽  
The Cost ◽  
Energy Companies

By transforming patterns of travel and work around the world, the COVID-19 pandemic is accelerating the transition to renewable energy and the decline of fossil fuels. Lockdowns brought car commuting and plane travel to a near halt, and the mass experiment in which white-collar employees have been working from home may permanently reduce energy consumption for business travel. Renewable energy and electric vehicles were already gaining market share before the pandemic. Under pressure from investors, major energy companies have started writing off fossil fuel reserves as stranded assets that are no longer worth the cost of extracting. These shifts may indicate that “peak oil demand” has arrived earlier than expected.

Editor in Chief’s Note on the Green Hydrogen Fuel from Solar / Wind Power

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Seyed Ehsan Hosseini
Keyword(s):  
Solar Wind ◽  
Crude Oil ◽  
Fossil Fuels ◽  
Sustainable Energy ◽  
Green Energy ◽  
Hydrogen Fuel ◽  
Fuel Production ◽  
Crude Oil Prices ◽  
Trade War ◽  
The Cost

Renewable and sustainable energy has an evolving story as the ongoing trade war in the word is influencing crude oil prices. Moreover, the global warming is an inevitable consequence of the worldwide increasing rate of fossil fuel utilization which has persuaded the governments to invest on the clean and sustainable energy resources. In recent years, the cost of green energy has tumbled, making the price of renewables competitive to the fossil fuels. Although, the hydrogen fuel is still extremely expensive compared to the crude oil price, investigations about clean hydrogen fuel production and utilization has been developed significantly which demonstrate the importance of the hydrogen fuel in the future. This article aims to scrutinize the importance of green hydrogen fuel production from solar/wind energy.

THERMAL EFFICIENCY OF SMALL SCALE BIOGAS PLANT FOR BIO-METHANE PRODUCTION

2015 ◽  
Vol 14 (4) ◽  
pp. 745-749
Author(s):  
Daisuke Tashima ◽  
Yoki Asano ◽  
Shigeki Tomomatsu ◽  
Yasuhiro Sugimoto
Keyword(s):  
Thermal Efficiency ◽  
Methane Production ◽  
Biogas Plant ◽  
Small Scale

Researching Alternative Cash Crops for Small Scale Farmers in Southern Ohio

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 530a-530
Author(s):  
Brad Bergefurd ◽  
Gary Gao
Keyword(s):  
Applied Research ◽  
Small Scale ◽  
Extension Agents ◽  
Research Projects ◽  
Cash Crops ◽  
Grant Program ◽  
Culinary Herbs ◽  
Small Scale Farmers

Speciality crops are great alternative cash crops for small scale farmers. Small scale farmers are constantly searching for viable economic crops to grow. We have been conducting applied research on the production and marketing of culinary herbs, oriental vegetables, colored peppers, and muskmelons to name a few. These crops show excellent potential for southern Ohio. Field demonstration, seminars, and surveys were used to gather and disseminate information on these speciality crops. More than 230 people attended our seminars on alternative cash crops. More than 150 people attended our field days. In addition, we had identified many chefs that are willing to purchase from local speciality crop growers. It will be a win-win situation for both chefs and growers. Growers will be able to maximize their profitability while chefs will receive fresh and unique produce. As a result of our research, we were able to show small scale growers what they can grow successfully and how they can market their crops for most profit. These applied research projects received a combined funding of $10000.00 from OSU Extension-Innovative Grant program. These projects are a great way to establish credibility among clients. We would also like to demonstrate how other extension agents can help their clients. A lecture utilizing slides and overhead transparencies will be the format of the seminar.

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