Energetically self-sustaining treatment of swine wastewater in a microbial electrochemical technology-centered hybrid system

Abstract This study focused on evaluating different support media for COD and nitrogen compound removal from an Upflow Anaerobic Sludge Blanket (UASB) reactor fed with swine wastewater. Maximum specific nitrification (MSNA) and denitrification (MSDA) activity tests were performed in two fixed-film systems with (1) polyurethane foam (R1) and (2) polyethylene rings (R2). The results showed that the R2 system performed more efficiently than R1, reaching organic matter removal of 77 ± 8% and nitrogen of 98 ± 4%, attributed to higher specific denitrifying activity recorded (5.3 ± 0.34 g NO3--N/g VTS ∙h). In this sense, MSDA tests indicated that the suspended biomass was responsible for at least 70% of nitrogen removal in the form of ammonium compared with 20% attributed to biomass in the form of biofilm. On the other hand, 40 ± 5% of initial nitrogen could not be quantified in the system effluents, but 10 ± 1% was attributed to loss by volatilization. According to the analyses, the previous information infers the development of simultaneous nitrification-denitrification (SND) routes. Respect to the analyses of microbial diversity and abundance in the biofilm of R2 rings, the presence of the genus Pseudomonas dominated the prokaryotic community of the system in 54.4%.

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Microaerophilic treatment enhanced organic matter removal and methane production rates during swine wastewater treatment: A long-term engineering evaluation

Renewable Energy ◽

10.1016/j.renene.2021.08.120 ◽

2021 ◽

Vol 180 ◽

pp. 691-699

Author(s):

Maurício Guimarães de Oliveira ◽

José Marcos Marques Mourão ◽

Ana Katherinne Marques de Oliveira ◽

André Bezerra dos Santos ◽

Erlon Lopes Pereira

Keyword(s):

Organic Matter ◽

Wastewater Treatment ◽

Methane Production ◽

Swine Wastewater ◽

Production Rates ◽

Organic Matter Removal

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Sludge granulation in an UASB–moving bed biofilm hybrid reactor for efficient organic matter removal and nitrogen removal in biofilm reactor

Environmental Technology ◽

10.1080/09593330.2017.1299796 ◽

2017 ◽

Vol 39 (3) ◽

pp. 298-307 ◽

Cited By ~ 2

Author(s):

Pritha Chatterjee ◽

M. M. Ghangrekar ◽

Surampalli Rao

Keyword(s):

Organic Matter ◽

Nitrogen Removal ◽

Biofilm Reactor ◽

Hybrid Reactor ◽

Organic Matter Removal ◽

Moving Bed ◽

Sludge Granulation

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Organic matter removal and ammonia recovery by optimised treatments of swine wastewater

Journal of Environmental Management ◽

10.1016/j.jenvman.2020.110692 ◽

2020 ◽

Vol 270 ◽

pp. 110692

Author(s):

Adele Folino ◽

Demetrio Antonio Zema ◽

Paolo Salvatore Calabrò

Keyword(s):

Organic Matter ◽

Swine Wastewater ◽

Organic Matter Removal ◽

Ammonia Recovery

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

Environmental Engineering and Management Journal ◽

10.30638/eemj.2016.246 ◽

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

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Pre-Precipitation Facilitates Nitrogen Removal without Tank Expansion

Water Science & Technology ◽

10.2166/wst.1990.0233 ◽

1990 ◽

Vol 22 (7-8) ◽

pp. 85-92 ◽

Cited By ~ 2

Author(s):

Ingemar Karlsson ◽

Gunnar Smith

Keyword(s):

Waste Water ◽

Organic Matter ◽

Water Treatment ◽

Carbon Source ◽

Nitrogen Removal ◽

Waste Water Treatment ◽

Chemical Precipitation ◽

Sewage Water ◽

Laboratory Studies ◽

Denitrification Process

Chemically coagulated sewage water gives an effluent low in both suspended matter and organics. To use chemical precipitation as the first step in waste water treatment improves nitrification in the following biological stage. The precipitated sludge contains 75% of the organic matter in the sewage and can by hydrolysis be converted to readily degradable organic matter, which presents a valuable carbon source for the denitrification process. This paper will review experiences from full-scale applications as well as pilot-plant and laboratory studies.

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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 ◽

10.3390/w13070882 ◽

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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