Cow dung management, biogas production and the uses of bio-slurry for sustainable agriculture

Cleaner Waste Systems Pub Date : 2024-12-31 DOI:10.1016/j.clwas.2024.100201

Molla Rahman Shaibur , Abu Sayed Al Helal , Abu Bakar Siddique , Humaira Husain , Md. Washim Khan , Sabiha Sarwar , Fariha Farzana , Nazneen Nahar , Md. Sabbir Hossain , Samsul Huda Arpon , Md. Ashik Miah , Sharif Shahara Nova , Kulsuma Akter Priyanka , Farhana Yeasmin , Md. Mirajul Islam , Rabbat Hasan Nishan , Shahriar Rohan Raj , Md Hasanuzzaman , Md Nazmus Sakib

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Abstract

In the dairy farming sector of Bangladesh, cow dung management practices are increasing daily. In this study, proper management of cow dung and its potentiality was analyzed. The utilization of cow dung and its application in biogas generation have been highlighted. Economic gains through cow dung management and its social acceptability were also determined. Cow dung is commonly used as fuel, compost, fish feeding, biogas production, and fresh application in agricultural fields, and some parts are being wasted. The waste part is creating a dirty environment. The total sustainable development index (SDI) for dairy farm waste management was 0.73, indicating a higher level of satisfaction. Effects on traditional fuel sources such as financial benefits and workload reduction through biogas production have been shown. Emphasis has been placed on using bio-slurry (a byproduct of biogas plants) in agriculture for sustainable development. Installation of a biogas plant in a household saved 8.50 kg of firewood day⁻¹ when they were using firewood only for cooking. Similarly, 0.29 kg of petroleum gas was saved day ⁻¹ when they were used and its potentiality was also analyzed. It's saved almost 1.67 kg of chemical fertilizer day⁻¹. Above all, the utilization of these target products was examined, and its relation to sustainable development was shown. The total SDI score of bio-slurry waste management was about 0.81, indicating a higher satisfactory level. The findings showed that more than 90 % of households achieved the sustainable development score recommended by FAO sustainable agriculture. Economic analysis of bio-slurry in agriculture showed an average cost-benefit ratio of 3.34, indicating an economically significant outcome. The findings suggested that the management of cow dung and utilization of bio-slurry in agricultural fields helps to maintain sustainable development in the rural communities of Bangladesh, where biogas and bio-slurry utilization is strongly recommended.

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牛粪管理、沼气生产和可持续农业生物浆的使用

在孟加拉国的奶牛养殖部门，牛粪管理做法每天都在增加。本文对牛粪的合理管理及其潜力进行了分析。重点介绍了牛粪的利用及其在沼气生产中的应用。还确定了通过牛粪管理获得的经济收益及其社会可接受性。牛粪通常被用作燃料、堆肥、养鱼、沼气生产和农业领域的新鲜应用，有些部分被浪费了。废物部分正在制造一个肮脏的环境。奶牛场废弃物管理的总可持续发展指数（SDI）为0.73，满意度较高。对传统燃料来源的影响，如经济效益和通过沼气生产减少工作量已经得到证实。重点是在农业中利用生物浆（沼气厂的副产品）促进可持续发展。在一个只使用柴火做饭的家庭中，安装沼气厂每天节省8.50 公斤柴火。同样，在使用时，第1天节省了0.29 kg的石油天然气，并分析了其潜力。每天节约化肥约1.67 kg。首先，对这些目标产品的利用进行了考察，并指出了其与可持续发展的关系。生物浆废弃物管理的SDI总分约为0.81，满意程度较高。调查结果显示，超过90% %的家庭达到了粮农组织可持续农业推荐的可持续发展得分。经济分析表明，生物浆在农业上的平均成本效益比为3.34，具有显著的经济效益。研究结果表明，在农业领域管理牛粪和利用生物浆有助于维持孟加拉国农村社区的可持续发展，强烈建议利用沼气和生物浆。

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来源期刊

Cleaner Waste Systems

CiteScore

2.60

自引率

0.00%

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