• Journal of Animal Environmental Science
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• v.5 no.2
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• pp.123-132
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• 1999

This study was carried out to find deodorization management method of the efflux from swine slurry treated by thermophilic aerobic oxidation reactor. Three kinds of deodorization methods in Lab-scale reactors, were used in this experiment; No treatment, air injection treatment(50$m\ell$ air/min. $\ell$) and inoculumn of photrophic bacteria treatement(108 cell(Most probable number, MPN)/$m\ell$). The concentration of volatile fatty acids(VFAs), hydrogen sulfide(H2S), and ammonia(NH3) were analyzed during the treatment period(50 days). The major results obtained as follows. 1. Air injection method to efflux showed very high removal effect on malodorants such as VFAs, hydrogen sulfide(H2B). But ammonia(NH3) was emitted to much. 2. PTB inoculum method was also effective in removal of malodorants, VFAs, Hydrogen sulfide(H2S), when it was applied to the efflux. 3. We found that the concentrations of malodorants, VFAs, H2S, NH3 had some relatinships with the pH, ORP, BOD in the efflux.

• Journal of Animal Environmental Science
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• v.4 no.2
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• pp.137-147
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• 1998

This study was carried out to find deodorization effect of swine-slurry by addition of phototrophic bacteria(PTB). The pilot-scale reactors operation conditions was designed by the inoculum amounts of PTB and light-conditions. Treatment conditions was divided into 3 types; 106 MPN/ml$.$Dark(T-1), 108 MPN/ml$.$Dark(T-2), 108 MPN/ml$.$Natural light(T-3). The changes of the concentration of volatile fatty acids(VFAs), hydrogen sulfide(H2S), ammonia (NH3) and odor intensity were analyzed during the treatment period(35 days). From results of this study, the maximum intensity of odor in the headspace of the reactor T-1 was 4.82 and T-2, T-3 was 2.63, respectively. In swine-slurry of reactors used, it almost took 10 days until to be stabilized with solid and liquid phase. Intensity of odor in headspace was mainly derived from the liquid phase. The PTB inoculum method to swine-slurry was very effective in reduction of VFAs, H2S and Sulfate-reducing bacteria(SRB) concentration. Expecially, It was interested in reverse growth behaviour of SRB and PTB in these conditions.

• Journal of the Korea Organic Resources Recycling Association
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• v.6 no.1
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• pp.13-20
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• 1998

Rhodospirillum rubrum N-1 was inoculated to manipulated swine wastewater of 20,000 mg/L as Biochemical Oxygen Demand (BOD) to study the effect of aeration on swine wastewater deodorization. Biological and physico-chemical parameters were determined at 1 day interval for 9 days. Removals of BOD, volatile fatty acids (VFAs), and phosphate were 54.6%, 87.0%, and 54.5%, respectively. No significant changes were observed in the concentrations of total nitrogen, total phosphorus, nitrate, nitrite, hydrogen sulfide, and mercaptane.