scholarly journals Variação do tamanho das copas das árvores de Corymbia citriodora num sistema silvipastoril com aplicação de água residuária de suinocultura / Variation of canopy size of Corymbia citriodora trees in a silvopastoral system with application of swine wastewater

2021 ◽  
Vol 7 (9) ◽  
pp. 91784-91795
Author(s):  
Mariana Cássia Silva ◽  
José Geraldo Mageste Da Silva ◽  
Vanessa Caroline De Oliveira ◽  
Cleene Agostinho De Lima ◽  
Ronei Carlos De Oliveira
Keyword(s):  
Swine Wastewater ◽  
Silvopastoral System ◽  
Corymbia Citriodora ◽  
Canopy Size

scholarly journals Accumulation of sodium and heavy metals in soil cultivated with Corymbia citriodora after the application of swine wastewater

2020 ◽  
Vol 36 (3) ◽  
Author(s):  
Rafaella Ferreira Batista Bernardes ◽  
Laura Rayane Rodrigues Oliveira ◽  
Renato Aurélio Severino de Menezes Freitas ◽  
Murilo Henrique de Deus Bernardes ◽  
Regina Maria Quintão Lana ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Statistical Design ◽  
Soil Nutrient ◽  
Swine Wastewater ◽  
Nutrient Contents ◽  
Final Destination ◽  
Mineralization Of Organic Matter ◽  
Chemical Attributes ◽  
June July ◽  
Corymbia Citriodora

The confinement of pigs stands out as a great generator of swine wastewater (SW). The final destination of waste generated is currently a concern of society, since if handled improperly, it can cause serious impacts to the environment. One of the alternatives is the use of SW as a source of nutrients, which are made available to the plants, after the mineralization of organic matter. The objective of this work was to compare soil chemical attributes under two planting arrangements, in single and double lines of Corymbia citriodora. Two experiments were carried out at the Bonsucesso farm, in Uberlândia-MG, the first with C. citriodora in simple lines, with five plants per plot, spacing two meters between plants and 15 meters between rows. The second experiment was with C. citriodora in double lines, with two meters between plants in the line, three meters between lines in the plot and 15 meters between the double lines of C. citriodora. The statistical design was in randomized blocks. The treatments used were five doses of SW (0; 200; 400; 600 and 800 m³ ha-1) with five replicates. The application of SW rates was divided in the dry season, in the months of June, July and August. The chemical characteristics of the soil were evaluated in the 0-20 cm depth layer. Planting on double lines of C. citriodora provided higher soil nutrient contents. The application of swine wastewater raised the levels of potassium and heavy metals such as copper and zinc. The dose of 200 m3 ha-1 provided adequate levels for most nutrients present in the soil.

AN NOVEL UCSB-ANR INTEGRATED SYSTEM FOR EFFICIENT REMOVAL OF ORGANIC MATTER AND AMMONIA NITROGEN FROM SWINE WASTEWATER

2016 ◽  
Vol 15 (10) ◽  
pp. 2261-2266
Author(s):  
Xiaowei Li ◽  
Jie Zhang ◽  
Weiwei Zhao ◽  
Xuewen Yi ◽  
Wei Lin ◽  
...  
Keyword(s):  
Organic Matter ◽  
Ammonia Nitrogen ◽  
Integrated System ◽  
Swine Wastewater ◽  
Efficient Removal

Kinetics and Removal Efficiency of Nitrogen in Constructed Wetlands Cultivated with Different Plant Species for Treating Swine Wastewater Applied at Different Rates

2021 ◽  
Vol 232 (1) ◽  
Author(s):  
Fátima Resende Luiz Fia ◽  
Antonio Teixeira de Matos ◽  
Ronaldo Fia ◽  
Mateus Pimentel de Matos ◽  
Alisson Carraro Borges ◽  
...  
Keyword(s):  
Plant Species ◽  
Removal Efficiency ◽  
Constructed Wetlands ◽  
Swine Wastewater

scholarly journals A Framework Based on Finite Element Method (FEM) for Modelling and Assessing the Affection of the Local Thermal Weather Factors on the Performance of Anaerobic Lagoons for the Natural Treatment of Swine Wastewater

Water ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 882
Author(s):  
Saulo Brito-Espino ◽  
Alejandro Ramos-Martín ◽  
Sebastian O. Pérez-Báez ◽  
Carlos Mendieta-Pino ◽  
Federico Leon-Zerpa
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Organic Matter ◽  
Anaerobic Digestion ◽  
Environmental Sustainability ◽  
Diffusion Reaction ◽  
Swine Wastewater ◽  
Natural Treatment ◽  
Element Method ◽  
Anaerobic Lagoons

Anaerobic lagoons are natural wastewater treatment systems suitable for swine farms in small communities due to its low operational and building costs, as well as for the environmental sustainability that these technologies enable. The local weather is one of the factors which greatly influences the efficiency of the organic matter degradation within anaerobic lagoons, since microbial growth is closely related to temperature. In this manuscript, we propose a mathematical model which involves the two-dimensional Stokes, advection–diffusion-reaction and heat transfer equations for an unstirred fluid flow. Furthermore, the Anaerobic Digestion Model No1 (ADM1), developed by the International Water Association (IWA), has been implemented in the model. The partial differential equations resulting from the model, which involve a large number of state variables that change according to the position and the time, are solved through the use of the Finite Element Method. The results of the simulations indicated that the methodology is capable of predicting reasonably well the steady-state of the concentrations for all processes that take place in the anaerobic digestion and for each one of the variables considered; cells, organic matter, nutrients, etc. In view of the results, it can be concluded that the model has significant potential for the design and the study of anaerobic cells’ behaviour within free flow systems.

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