Development of a Dynamic Model for Predicting Humic and Fulvic Acids Production in a Composting Process Using Olive Mill Wastes
Journal Title: World Journal of Agriculture and Soil Science - Year 2019, Vol 1, Issue 5
Abstract
In this work, a dynamic mathematical model for the prediction of fulvic (FA, g/kg) and humic acids (HA, g/kg) production during the humification stage of an olive mill waste residues (OMWR) composting process was developed. The dynamic modeling technique was applied successfully to the data record from an industrial composting process using OMWR as organic substrate collected from different III-phase olive mills. The applied prediction technique was based on time series theory and on regression analysis by residuals. The effect of pH, of Water Holding Capacity (WHC, %), of Electrical Conductivity (EC, mS/cm) and of ammonium nitrogen concertation (N-NH4, g/kg of TS) on FA and HA production was examined using daily measurements of all the above parameters for the last sixty days of the composting period. The experimental results show a strong reverse interrelation between FA and HA verifying that the HA production is based on FA reduction. The adequacy of the created dynamic models was checked by the x2 test giving reliable result.Foragers and Food Production in Africa: A Cross-Cultural and Analytical Perspective. Paper for the 48th annual Society for Cross-Cultural Research (SCCR) meetings, Jacksonville, Florida, February 13-16, 2019.
Authors and Affiliations
Apostolos Vlyssides
Keywords
Related Articles
- EP ID EP591356
- DOI 10.33552/WJASS.2019.01.000525
- Views 40
- Downloads 0
Forest Fires The Disaster in California and Spain
Before dealing with such a problem the background of the author will be mentioned. My preparation includes a variety of subjects related to forest in subjects as follow: • Soil Physics and Soil Chemistry • Biophysical...
A Review on Production and Marketing of Mango Fruit
This review paper focuses on production and marketing of edible fruit like mango. Fruit crops play an important role in the national food security of people around the world. They are generally delicious and highly nutri...
Target and Non-Target Lepidopteran Pest IPM in Brazil Bt Crop Refuge Areas
Among the largest fibers and grains cash crop, Brazil is one of the largest commodity agricultural producer in the world. However, the insect’s pest intense attack has limited the Brazilian agricultural crops productivit...
Experience from Traditional Irrigation Management in Ethiopia. Case Study of Holetta River
The main objective of the study was to assess experience of Holetta River to traditional irrigation users. In the study both qualitative and quantitative research approaches were used. By Purposive and convenient samplin...
Operational and Environmental Impact of Ashes Produced from Combustion of Vineyard Wastes and their Blends in Fixed and Fluidized Bed Units
The study aimed to provide valuable information for the promotion of vine by-products in fuelling small-to-medium size enterprises near wine/spirit processing industries. The objective was to evaluate and compare the ash...