Swine Wastewater Treatment for Small Farms by a New Anaerobic-Aerobic Biofiltration Technology

Escalante-Estrada, Violeta Eréndira; Garzón-Zúñiga, Marco A.; Valle‐Cervantes, Sergio; Páez-Lerma, Jesús Bernardo

doi:10.1007/s11270-019-4200-3

Cited by 13 publications

(4 citation statements)

References 21 publications

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“…Anaerobic-aerobic coupling technologies can be used for nutrient recovery in the swine wastewater resource management process (Figure 3) [48]. Among them, various methods are applied, including internal circulating anaerobic reactor (IC) and anaerobic However, despite its extensive use, anaerobic fermentation technology still faces practical challenges.…”

Section: Further Optimizing the Resource Efficiency Of Anaerobic-aero...mentioning

confidence: 99%

Resource and Energy Utilization of Swine Wastewater Treatment: Recent Progress and Future Directions

Meng,

Jin,

Feng

et al. 2023

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Livestock and poultry farming, as a crucial component of agricultural production, poses a substantial threat to the ecological environment due to the discharge of wastewater. In recent years, researchers have proposed various resource treatment technologies for livestock and poultry breeding wastewater. However, a comprehensive discussion regarding the limitations and avenues for optimizing resource utilization technologies for livestock and poultry farming wastewater treatment is notably absent in existing literature. This paper takes swine wastewater as an illustrative case and undertakes a review of the advantages, disadvantages, and optimization directions of resource treatment technologies, including physical and chemical technology, microbial metabolism, microbial electrochemistry, constructed wetlands, and microalgae-based techniques. Based on mass balance, the recovery rates of various treatment technologies are estimated, and it was found that microbial electrochemistry and constructed wetland techniques may become the mainstream for resource utilization in the future. Furthermore, this paper emphasizes that in addition to resource efficiency, the optimization of resource utilization technologies for swine wastewater should also focus on the following aspects: (1) striking a balance between environmental impact and economic benefits; (2) reducing the cost of resource and energy utilization; and (3) safeguarding environmental and ecological security.

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Section: Further Optimizing the Resource Efficiency Of Anaerobic-aero...mentioning

confidence: 99%

Resource and Energy Utilization of Swine Wastewater Treatment: Recent Progress and Future Directions

Meng,

Jin,

Feng

et al. 2023

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“…The presence of ammonium is above the permitted limit before discharging into the environment [1]. Non-treated swine wastewater releases high-strength contaminants directly into the environment, causing harmful impacts on the natural environment and human health [4]. In Vietnam, the solutions for swine wastewater effluents are still limited, resulting in a decrease in water quality.…”

Section: Introductionmentioning

confidence: 99%

“…However, this technology does not meet the need for effectively handling all waste and only reaches 50-70% of the farm's waste [22]. The use of biogas tanks in livestock farming is advantageous for collecting waste and utilizing energy sources, but wastewater from biogas tanks still has a high concentration of organic matter and various pollutants of nitrogen and phosphorus causing eutrophication [4,5]. To identify extremely efficient methods for treating swine wastewater, numerous researches have been carried out using anaerobic microorganisms to degrade contaminants in swine wastewater considered a suitable application, due to its high treatment efficiency, environmental friendliness, and low cost which can reduce environmental disasters caused by swine wastewater when discharged [1,7,13,17,19].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the optimum conditions of an anaerobic Down-flow Stationary Fixed Film reactor for swine wastewater treatment

Phan,

Duong,

Tran

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The Down-flow Stationary Fixed Film (DSFF) reactor is a downstream anaerobic reactor combined with a fixed layer of adhesive media that is capable of handling large organic loads, has cheap investment costs, and has a shorter treatment time than other conventional anaerobic technologies. In this study, the DSFF reactor was used to investigate its potential to remove contaminants from swine wastewater. The optimal operating conditions of the DSFF reactor including hydraulic retention time (HRT), organic concentration, and nutrient ratio were investigated. The obtained results showed that the COD removal efficiency increased from 50% to 79.721% when the influent COD enhanced from 500 to 3000 mg/L. The COD removal efficiency was 85.66%, 61.71% and 50.81% at three different nutritional ratios of C/N/P:250/1.5/1, C/N/P:250/7.5/1, and C/N/P:250/7.5/0.2, respectively. The overall results revealed that the optimal HRT is 12 hours, the optimal COD concentration is between 2000 mg/L and 3000 mg/L, and the optimal nutrient ratio is C/N/P:250/1.5/1. The DSFF reactor effectively manages BOD and phosphorus removal while handling a range of contamination levels in swine wastewater. Furthermore, there is no significant sludge loss and the operation mode is simple. This reactor is potentially appropriate for implementation in pig farming households.

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“…The researches into MFC have paid most attention to the materials or structure, while the microorganisms and operation environment of the MFC has been largely neglected [9,10]. It was found that the chemical oxygen demand (COD) of swine wastewater fluctuated frequently when climate changed through field sampling, which directly affected the microorganism inside MFCs [11].…”

Section: Introductionmentioning

confidence: 99%

Effects of Concentration Variations on the Performance and Microbial Community in Microbial Fuel Cell Using Swine Wastewater

Wang

et al. 2020

Energies

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The variation of substrate concentration in anode chamber directly affects the power generation efficiency and decontamination performance of microbial fuel cell (MFC). In this study, three concentrations of swine wastewater with 800 mg/L, 1600 mg/L and 2500 mg/L were selected as substrates, and the performance of MFC and response characteristics of anode microbial community were investigated. The results show that the concentration of a selected substrate is positively correlated with the output voltage of MFC and chemical oxygen demand (COD) removal rate. The microbial community diversity in the anode chamber and the performance of battery can be significantly affected when concentration changes in different ways, which helps to selectively cultivate the adaptable dominant bacteria to enhance the stability and decontamination performance of MFC. The community structure of anodic biofilm is mainly composed of Proteobacteria, Bacteroidetes, Firmicutes, Chloroflexi and Spirochaetae. These findings are meaningful to improve the treatment effects of swine wastewater and can help to find out the mechanism of varying concentration that influences the production of microorganisms in MFC.

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Swine Wastewater Treatment for Small Farms by a New Anaerobic-Aerobic Biofiltration Technology

Cited by 13 publications

References 21 publications

Resource and Energy Utilization of Swine Wastewater Treatment: Recent Progress and Future Directions

Resource and Energy Utilization of Swine Wastewater Treatment: Recent Progress and Future Directions

Evaluation of the optimum conditions of an anaerobic Down-flow Stationary Fixed Film reactor for swine wastewater treatment

Effects of Concentration Variations on the Performance and Microbial Community in Microbial Fuel Cell Using Swine Wastewater

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