scholarly journals A Biotreatment Effect on Dynamics of Cattle Manure Composition and Reduction of Ammonia Emissions from Agriculture

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 303
Author(s):  
Vilma Naujokienė ◽  
Indrė Bagdonienė ◽  
Rolandas Bleizgys ◽  
Mantas Rubežius

Increasing control of localized air pollution caused by ammonia is identified, including limiting the maximum emissions from agriculture. In EU countries, the agricultural sector is the source of above 94% of the total anthropogenic emissions of ammonia, of which manure removal systems account for 56%. In view of the reason for the agricultural waste management by formation and propagation of ammonia gas—the bacterial and enzymatic degradation of organic components in excrement—it is important to evaluate the effect of biotreatment of 100% natural composition (contain Azospirillum sp. (N) (number of bacterial colonies −1 × 109 cm−3), Frateuria aurentia (K) (number of bacterial colonies −1 × 109 cm−3), Bacillus megaterium (P) (bacterial colony count −1 × 109 cm−3), seaweed extract (10% by volume), phytohormones, auxins, cytokinin, gibberellins, amino acids, and vitamins) on the emission of ammonia from organic waste. Experimental research was carried out to determine significant differences of dynamics in agrochemical composition of manure, NH3 gas emissions, depending on biotreatment, manure storage duration, and ventilation intensity of the barn. Gas emission was obtained via laser gas analyzer using a spectroscopic method in a specially reconstructed wind tunnel chamber. About 32% manure biotreatment effect on reduction of ammonia emissions was established. The maximum effect of the biodegradable compound on gaseous propagation was assessed after 28–35 days of manure storage and proved all biotreatment effect time of 49–56 days. By the saving nitrogen loses priority, manure biotreatment could reduce nitrogen losses from manure and inorganic N fertilizers by approximately 5%, also could reduce approximately 5911.1 thousand tones nitrogen fertilizer in the world and reduce approximately 5.5 Eur ha−1. “The biotreatment impact assessment confirmed that proper application of biotreatment can reduce ammonia emissions from manure and environmental pollution from agriculture”.

Author(s):  
O. N. Kolomyts

The article deals with the main barriers to innovation development directly or indirectly affecting the activities of agricultural enterprises. The directions of development of innovations in the enterprises of the agricultural sector are proposed, which will lead to the maximum effect in terms of the multiplier effect on the economy as a whole.


2021 ◽  
pp. 88-96
Author(s):  
N. Spodyniuk ◽  
◽  
L. Horbachenko ◽  

The constant development of the country's agricultural sector allows the production of biofuels, such as fuel pellets, from agricultural waste - straw, corn and sunflower husks. However, the transportation of fuel pellets is quite energy consuming. The process of loading and unloading, transportation over long distances requires complex mechanized equipment. The use of a pneumatic conveyor for grain reloading will allow to provide high-quality transportation of fuel pellets. The aim of the article was to investigate the operation of the pneumatic conveyor for overloading fuel pellets, to determine the optimal indicators that affect the productivity of the pneumatic conveyor. Since fuel pellets, as raw materials, are structurally similar to cereals, a study of the pneumatic grain conveyor PTZ-25 was conducted. The dependence of the productivity of the pneumatic conveyor on the lifting height h, m and the length of the pipelines L, m was obtained. The obtained results showed that by reducing the length of the pipelines by four times and the lifting height by half, the productivity of the pneumatic conveyor will increase by 1.15 times. Key words: fuel pellets, pneumatic conveyor, productivity


Author(s):  
Rhenny Ratnawati ◽  
Sugito Sugito

The process of aerobic composting the slaughterhouse (SH) solid waste generate ammonia emissions. Aim: The objective of this research to study the ability of the adsorbent to use zeolite to reduce ammonia gas emissions during the composting process of SH solid waste. Methodology and Results: Reduction of ammonia emission is conducted during the aerobic composting process which is 50 days. The raw material composition of the composting process used was 100% rumen contents, 60% rumen contents: 40% straw, 50% rumen contents: 50% straw, and 40% rumen contents: 60% straw. Zeolite used in the form of granular size 100 mesh. The result of the research showed that the level of release of ammonia gas emissions during the composting process could be reduced by zeolite. Conclusion, significance, and impact study: The efficiency of reducing ammonia gas emissions using zeolite adsorbents in the composting process of SH solid waste ranges from 98.09 - 99.40% on average. Zeolite is an adsorbent that has high adsorption power because it has many pores and has a high ion exchange high capacity and serves as an absorbent cation that can cause environmental pollution.


2019 ◽  
Vol 9 (19) ◽  
pp. 3980 ◽  
Author(s):  
Saowanee Wijitkosum ◽  
Preamsuda Jiwnok

For an agricultural country such as Thailand, converting agricultural waste into biochar offers a potential solution to manage massive quantities of crop residues following harvest. This research studied the structure and chemical composition of biochar obtained from cassava rhizomes, cassava stems and corncobs, produced using a patented locally-manufactured biochar kiln using low-cost appropriate technology designed to be fabricated locally by farmers. The research found that cassava stems yielded the highest number of Brunauer-Emmett-Teller (BET) surface area in the biochar product, while chemical analysis indicated that corncobs yielded the highest amount of C (81.35%). The amount of H in the corncob biochar was also the highest (2.42%). The study also showed biochar produced by slow pyrolysis was of a high quality, with stable C and low H/C ratio. Biochar’s high BET surface area and total pore volume makes it suitable for soil amendment, contributing to reduced soil density, higher soil moisture and aeration and reduced leaching of plant nutrients from the rhizosphere. Biochar also provides a conducive habitat for beneficial soil microorganisms. The findings indicate that soil incorporation of biochar produced from agricultural crop residues can enhance food security and mitigate the contribution of the agricultural sector to climate change impacts.


2008 ◽  
Author(s):  
Lifeng Li ◽  
Jactone Arogo Ogejo ◽  
Linsey C Marr ◽  
Katharine F Knowlton ◽  
Mark D Hanigan ◽  
...  

2021 ◽  
Vol 247 ◽  
pp. 01074
Author(s):  
Alexander Bogomolov ◽  
Victor Nevezhin ◽  
Margarita Larionova ◽  
Elena Piskun

According to Meadows' model, the main factor that determines the limits to the growth of the human civilization is the agricultural sector of the planet, the latter, however, significantly pollutes the environment and togather with other factors contributes much to global warming. A half of all the habitable land is used for agriculture. Unless the efficiency of agriculture is fundamentally improved and the amount of waste generated as a result, is reduced, a global catastrophe may befall in 30–50 years. Whereas agrarian “garbage” may not be just the waste that pollutes the environment, it can decrease the burden on the environment by being the raw material for fertilizers, feed or fuel manufacturing. Modern digital technologies can improve the efficiency of agriculture, organize low-waste or non-waste production and that will enable people to diminish the pollution of the environment and push away the limits to the growth of human civilization. The developed countries are using digital technologies more and more intensively to increase agricultural productivity and, at the same time, reduce both environmental pollution with agricultural waste and disruption of the ecological balance. The digitalization of agricultural business, the use of geoinformation technologies, drones, robots, artificial intelligence and other technologies of the digital society help to push the limits to the growth of human civilization away into the future.


2021 ◽  
Vol 3 (4) ◽  
pp. 167-176
Author(s):  
Lukman

The agricultural sector is the largest contributor of organic waste that can be recycled as useful things, among others, used as organic fertilizer. This study aims to determine the effect of agricultural waste organic compost on the growth of Cocoa (Theobroma Cacao L.) plants. The analysis results of the materials to be applied are N-total: 0.27% P2O5: 3.20%, K2O: 1.63%, and C-Organic: 17.40%, then the research data were analyzed using a Randomized Block Design (RAK) which consists of 6 levels of treatment, namely: C0 = no fertilizer, C1 = soil + 20 g compost polybag-1, C2 = soil + compost 40 g. polybag-1, C3 = soil + compost 60 g. polybag-1, C4 = soil + compost 80 g. polybag-1, C5 = Soil + compost 100 g. polybag-1. Each experiment was repeated three times, so there were 90 experimental units. Observation parameters were plant height, number of leaves, and stem diameter. The results showed that, giving 100 g of organic waste compost polybag-1 gave better results on the growth of cacao seedlings, with a plant height of 29.61 cm, number of leaves 11.73 strands, and stem diameter of 3.38 mm. From this research, it can be concluded that it will produce better results if organic waste is managed properly.


2020 ◽  
Vol 20 (24) ◽  
pp. 16055-16087
Author(s):  
Xinrui Ge ◽  
Martijn Schaap ◽  
Richard Kranenburg ◽  
Arjo Segers ◽  
Gert Jan Reinds ◽  
...  

Abstract. Ammonia emissions into the atmosphere have increased substantially in Europe since 1960, primarily due to the intensification of agriculture, as illustrated by enhanced livestock and the use of fertilizers. These associated emissions of reactive nitrogen, particulate matter, and acid deposition have contributed to negative societal impacts on human health and terrestrial ecosystems. Due to the limited availability of reliable measurements, emission inventories are used to assess large-scale ammonia emissions from agriculture by creating gridded annual emission maps and emission time profiles globally and regionally. The modeled emissions are subsequently utilized in chemistry transport models to obtain ammonia concentrations and depositions. However, current emission inventories usually have relatively low spatial resolutions and coarse categorizations that do not distinguish between fertilization on various crops, grazing, animal housing, and manure storage in its spatial allocation. Furthermore, in assessing the seasonal variation of ammonia emissions, they do not consider local climatology and agricultural management, which limits the capability to reproduce observed spatial and seasonal variations in the ammonia concentrations. This paper describes a novel ammonia emission model that quantifies agricultural emissions with improved spatial details and temporal dynamics in 2010 in Germany and Benelux. The spatial allocation was achieved by embedding the agricultural emission model Integrated Nitrogen Tool across Europe for Greenhouse gases and Ammonia Targeted to Operational Responses (INTEGRATOR) into the air pollution inventory Monitoring Atmospheric Composition and Climate-III (MACC-III), thus accounting for differentiation in ammonia emissions from manure and fertilizer application, grazing, animal houses and manure storage systems. The more detailed temporal distribution came from the integration of TIMELINES, which provided predictions of the timing of key agricultural operations, including the day of fertilization across Europe. The emission maps and time profiles were imported into LOTOS-EUROS to obtain surface concentrations and total columns for validation. The comparison of surface concentration between modeled output and in situ measurements illustrated that the updated model had been improved significantly with respect to the temporal variation of ammonia emission, and its performance was more stable and robust. The comparison of total columns between remote sensing observations and model simulations showed that some spatial characteristics were smoothened. Also, there was an overestimation in southern Germany and underestimation in northern Germany. The results suggested that updating ammonia emission fractions and accounting for manure transport are the direction for further improvement, and detailed land use is needed to increase the spatial resolution of spatial allocation in ammonia emission modeling.


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