Statistical Modeling of the Methane Production from Slaughterhouse Wastes in Anaerobic Co-digestion
Journal Title: International Journal of Environment and Climate Change - Year 2017, Vol 7, Issue 1
Abstract
A simplex-lattice mixture design and the surface response methodology (SRM) were used to modeling the methane production on the anaerobic co-digestion (AcoD) of three different substrates generated from slaughterhouses: manures (Ms), solid organic wastes (SOW) and wastewaters (SHWW). In the first stage of the study, a characterization of these residuals was carried out; meanwhile, the mixture design was used in the second step to determine the methane production obtained on the AcoD of the substrates considered. The results of the analysis of RSM show that the best adjusted model was the special cubic, with high values of R2 and R2adj of 95.13% and 90.96%, respectively. According to the statistical – mathematical model obtained in this study, wastes generated from slaughterhouses are appropriated material for acquire biogas; nonetheless, significant antagonistic effects was observed when increasing the amounts of SOW and SHWW, apparently by the increase in the levels of proteins and fat, oil and grease (FOGs). A good strategy to implement in order to achieve high methane productions for the effluent treatments from meat producing industries is a combination of substrates Ms and SOW; meanwhile, is preferable to separately treat the SHWW in high rate AD systems or anaerobic lagoons.
Authors and Affiliations
Yans Guardia- Puebla, Miguel Herrera-Robledo, Yoandro Rodríguez-Ponce, Suyén Rodríguez-Pérez, Manuel Pérez-Cedeño
Keywords
Related Articles
- EP ID EP350489
- DOI 10.9734/BJECC/2017/29741
- Views 139
- Downloads 0
Challenges and Possibilities in the Multi-Parameter Characterization Techniques for Enhanced Monitoring of CO2 in Geological Carbon Sequestration
Scientific investigations and observations show that carbon dioxide is a major contributor to the increasingly damaging effects of global warming. Thus, geological sequestration of carbon dioxide in saline aquifers is al...
Are Diatom-based Indices from Europe Suitable for River Health assessment in China? A Case Study from Taizi River, Northeastern China
Aims: Diatom-based indices are widely used for river health assessment. Many such indices were originally developed in European countries based on a specific taxa list of benthic diatoms. Thus, the transferability of the...
Effect of Climate Change on Potential Groundwater Recharge in the Dry Zone of Sri Lanka
Groundwater is still an important water source for many parts of the world, especially in countries such as Sri Lanka, because, despite a huge government investment to divert some of the rivers to dry areas, there are ma...
Participation or Exploitation: How Can Concepts of Community and Privatization Coalesce around Water Efficiency Approaches?
The need to promote water efficient technologies and initiatives is increasingly a central feature of Integrated Water Resources Management (IWRM). Attendant to this is a growing focus by IWRM practitioners of the role t...
Detecting Non-negligible New Influences in Environmental Data via a General Spatio-temporal Autoregressive Model
In some environmental problems, it is required to find out if new influences (e.g., new influences on the ozone concentration) occurred in one area of the region (named as a treatment area) have affected the measurements...