Full-Scale Experience for Nitrogen Removal from Piggery Waste

Choi, E.; Kim, Daehoon; Eum, Y.; Yun, Zuwhan; Min, Kyong-Sok

doi:10.2175/106143005x51969

Cited by 10 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wastewater characterization data for other food industries such as cheese whey (Carvalho et al, 2013), dairy (Britz and van Schalkwyk, 2005), molasses (Britz and van Schalkwyk, 2005), olive mill (Aktas et al, 2001;Paraskeva et al, 2007), food-service establishments (Lesikar et al, 2006), and hog slaughterhouses (Mass´e and Masse, 2000) are readily available in the published literature. Characteristics of meat and animal processing wastewater effluents are often reported as parts of treatment studies and lack characterization of wastewater sources inside the facilities, such as Choi et al (2005) on the nitrogen removal from piggery wastewater, Ros and Vrtovsek (2001) on the pretreatment of meat-processing wastewater, and Torkian et al (2003) on the posttreatment of slaughterhouse wastewater. Table 1 summarizes available data on slaughterhouse wastewater effluents characteristics in different countries.…”

mentioning

confidence: 99%

Characterization of Wastewater in Two U.S. Cattle Slaughterhouses

Ziara

Subbiah

et al. 2018

Water Environment Research

View full text Add to dashboard Cite

Recent changes related to antimicrobial intervention technologies and reduction in product loss have affected cattle slaughterhouse wastewater streams. In this study, wastewater samples were collected from two cattle slaughterhouses located in the Midwest of the United States, focusing on the overall wastewater, antimicrobial interventions, and viscera and offal processing. The wastewater concentrations were affected by the water use, dilution, processes, and wastewater pretreatment that occurs within the slaughterhouse. Even though there were differences in the wastewater concentrations, the overall wastewater loads for both slaughterhouses were similar. The overall mean total solids (TS), volatile solids (VS), 5-day biological chemical demand (BOD5), and chemical oxygen demand (COD) wastewater loads for the two slaughterhouses were 16.8, 10.0, 4.7, and 12.5 kg/1000 kg live weight killed, respectively. Wastewater streams from antimicrobial interventions have low pH and are potential sources of shock loadings. Wastewater from viscera and offal processing has high nutrient concentration; therefore, any improvement in this process could enhance the sustainability the industry.

show abstract

mentioning

confidence: 99%

Characterization of Wastewater in Two U.S. Cattle Slaughterhouses

Ziara

Subbiah

et al. 2018

Water Environment Research

View full text Add to dashboard Cite

show abstract

“…Researchers (Tilche et al 2001;Choi et al 2005) have studied full-scale nitrogen removal with Sequencing Batch Reactor (SBR) nitrification and denitrification from piggery manure wastewater without AD. Vanotti (Vanotti 2004) studied fullscale swine wastewater ammonia removal with another nitrification and denitrification system, Anoxic/Oxic (A/O).…”

Section: Introductionmentioning

confidence: 99%

Analysis and optimization of ammonia stripping using multi-fluid model

Zhao

Jiang

et al. 2011

Water Science and Technology

View full text Add to dashboard Cite

Ammonia recovery from anaerobic digestion (AD) is a notably beneficial process for removing excess nitrogen, producing low cost fertilizer and enhancing odor abatement. A process was developed for nutrients recovery by integrating a simple and effective stripping process with AD system. To design, optimize and scale up this system, multi-fluid model was developed to simulate flow, mass transfer and reactions in the ammonia stripping tower. The mass and heat transfer and dissociation reactions were introduced into the CFD framework. The air/liquid ratio in each cell of the domain was considered in heterogeneous mass transfer rate. Good agreement between CFD modeling and experiments employing a packed bed was obtained on the effect of pH and temperature upon ammonia removal. It was found that the liquid to gas mass transfer rate became slower at the lower part of the packed bed with high air/liquid ratio and short liquid resident time, decreasing ammonia removal efficiency. The predicted contours at the lower part also showed decreases in liquid volume fraction and liquid temperature. These results suggest a great potential compensation to use the multi-section feed-in and recirculation for improving reactor performance.

show abstract