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http://dx.doi.org/10.5762/KAIS.2018.19.5.64

Reaction Characteristics of Dairy Wastewater through Aerobic Biodegradability Assessment  

Choi, Yong-Bum (Dept. of Earth and Environmental Engineering, Kangwon National University)
Han, Dong-Joon (Dept. of Fire.Environmental Disaster, Gangwon State University)
Kwon, Jae-Hyouk (Dept. of Earth and Environmental Engineering, Kangwon National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.5, 2018 , pp. 64-71 More about this Journal
Abstract
The purpose of this study is to investigate the characteristics of the substrate of dairy wastewater through aerobic biodegradation and to use the results as the basic data for the efficient treatment of dairy wastewater. The SCODcr of the part of the matter that consisted of readily biodegradable organics (Ss) was 84.2%, which is higher than those of seafood processing wastewater (75.8~77.9%) and pigpen wastewater (58.2%). The proportion of non-biodegradable organics (SI) ranged from 5.6% to 6.4%, and the proportion of inert organics (SIi) generated by microbial metabolism ranged from 3.6 to 3.7%. The content coefficient (YI) of the non-biodegradable dissolved organic matter was in the range of 0.092 to 0.099, and the generation coefficient (Yp) of the inert substance produced by the microbial metabolism was in the range of 0.039 to 0.040. The analysis results of the organic component coefficient showed that approximately 91.0% of the dissolved organic matter of the dairy wastewater was biodegradable, and approximately 92.5% of the dissolved organic matter was the Ss component. Furthermore, the proportion of biodegradable organic matter in the total organic matter (TCODcr) was 89.3%. The proportions of non-biodegradable organics (SI) and non-biodegradable suspended organics (XI) were 3.0% and 7.7%, respectively, which are lower than those in similar wastewater. This means that the milk processing wastewater has a high aerobic biodegradability.
Keywords
Aerobic Biodegradability; COD Fraction; Dairy wastewater; Organic Removal; Reaction Characteristics;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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