Novel partial nitritation treatment for anaerobic digestion liquor of swine wastewater using swim-bed technology

2006 ◽  
Vol 102 (6) ◽  
pp. 497-503 ◽  
Author(s):  
Taichi Yamamoto ◽  
Keita Takaki ◽  
Toichiro Koyama ◽  
Kenji Furukawa
Keyword(s):  
Anaerobic Digestion ◽  
Swine Wastewater ◽  
Partial Nitritation

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.

Dynamics of transitional acidogenic community along with methanogenic population during anaerobic digestion of swine wastewater

2011 ◽  
Vol 46 (8) ◽  
pp. 1607-1613 ◽  
Author(s):  
Seung Gu Shin ◽  
Sulhee Yoo ◽  
Kwanghyun Hwang ◽  
Minkyung Song ◽  
Woong Kim ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Swine Wastewater

Partial Nitritation of Swine Wastewater in View of Its Coupling with the Anammox Process

2012 ◽  
Vol 41 (6) ◽  
pp. 1989-2000 ◽  
Author(s):  
Albert Magrí ◽  
Matias B. Vanotti ◽  
Ariel A. Szögi ◽  
Keri B. Cantrell
Keyword(s):  
Swine Wastewater ◽  
Partial Nitritation ◽  
Anammox Process

Enhancing anaerobic digestion of dairy and swine wastewater by adding trace elements: evaluation in batch and continuous experiments

2019 ◽  
Vol 80 (9) ◽  
pp. 1662-1672 ◽  
Author(s):  
Jing Wang ◽  
Maria Westerholm ◽  
Wei Qiao ◽  
Ahmed Mahdy ◽  
Simon M. Wandera ◽  
...  
Keyword(s):  
Trace Elements ◽  
Anaerobic Digestion ◽  
Critical Role ◽  
16S Rrna Gene Sequencing ◽  
Swine Wastewater ◽  
Rrna Gene ◽  
Continuous Systems ◽  
Batch Tests ◽  
Rrna Gene Sequencing ◽  
Low Dosage

Abstract Trace elements play a critical role for microbial activity in anaerobic digestion (AD) but their effects were probably overestimated in batch tests and should be comparably evaluated in continuous systems. In this study, Fe2+, Co2+, Ni2+, Cu2+ and Zn2+ were added in different concentrations to manure wastewater, and the effects were compared in both batch and continuous systems. The results were used to demonstrate suitable trace element compositions for AD of dairy and swine wastewater, and to compare the outcomes from batch and continuous systems. Fe2+ and Zn2+ were identified as being the most efficient stimulant of dairy and swine wastewater respectively. The addition of 5 mg/L Fe2+ and 0.4 mg/L Zn2+ increased the batch specific methane yield by 62% and 126% for dairy and swine wastewater, respectively. Nevertheless, a lower increment of 2% and 21%, for dairy and swine wastewater was obtained in the 120-day continuously-fed experiments. The 16S rRNA gene sequencing results indicated a relationship between the methanogens population, specific methanogenic activities, propionate, and dissolved hydrogen. Conclusively, the addition of a low dosage of Fe2+ and Zn2+ is a feasible strategy to enhance the methanogenic metabolism of the AD of dairy and swine wastewater respectively.

Assessment of the Anaerobic Digestion of Crude Glycerol, Stillage, and Swine Wastewater Mixtures

2020 ◽  
Vol 146 (9) ◽  
pp. 04020098
Author(s):  
Thompson Ricardo Weiser Meier ◽  
Paulo André Cremonez ◽  
Jhony Teleken ◽  
Thiago Sintra Maniglia ◽  
Edson Antônio da Silva ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Crude Glycerol ◽  
Swine Wastewater

Effect of the chlortetracycline addition method on methane production from the anaerobic digestion of swine wastewater

2014 ◽  
Vol 26 (10) ◽  
pp. 2001-2006 ◽  
Author(s):  
Lu Huang ◽  
Xin Wen ◽  
Yan Wang ◽  
Yongde Zou ◽  
Baohua Ma ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Swine Wastewater ◽  
Addition Method

The effect of different inoculums on anaerobic digestion of swine wastewater

2016 ◽  
Vol 4 (1) ◽  
pp. 115-122 ◽  
Author(s):  
Verónica Córdoba ◽  
Mónica Fernández ◽  
Estela Santalla
Keyword(s):  
Anaerobic Digestion ◽  
Swine Wastewater
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