Resource recovery and nitrogen removal from piggery waste using the combined anaerobic processes.
The combined ADEPT (Anaerobic Digestion Elutriated Phased Treatment)- SHARON (Single reactor system High Ammonium Removal Over Nitrite)--ANAMMOX (Anaerobic Ammonium Oxidation) processes were operated for the purpose of resource recovery and nitrogen removal from slurry-type piggery waste. The ADEPT operated at acidogenic loading rates of 3.95 gSCOD/L-day, the SCOD elutriation rate and acid production rate were 5.3 gSCOD/L-day and 3.3 gVFAs(as COD)/L-day, respectively. VS reduction and SCOD reduction by hydrolysis were 13% and 0.19 gSCOD(prod.)/gVS(feeding), respectively. Also, the acid production rate was 0.80 gVFAs/gSCOD(production). In the methanogenic reactor, the gas production rate and methane content were 2.8 L/day (0.3 m3CH4/kgCOD(removal)STP) and 77%, respectively. With these operating condition, the removal of nitrogen and phosphorus were 94.1% as NH4-N (86.5% as TKN) and 87.3% as T-P, respectively.
Hwang
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Office of Livestock Wastewater Treatment Plant in Sangju 742-952, 464-5 Bunhwang-ri, Nakdong-myun, Kyungpook, Korea. enviluck@naver.com
Min
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KS
Choi
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Yu
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D000818:Animals; D001421:Bacteria, Anaerobic / Q000378:metabolism*; D019149:Bioreactors; D019649:Food Industry; D006868:Hydrolysis; D007220:Industrial Waste; D007723:Korea; D008697:Methane / Q000378:metabolism; D009584:Nitrogen / Q000302:isolation & purification* / Q000378:metabolism; D010758:Phosphorus / Q000302:isolation & purification / Q000378:metabolism; D013552:Swine; D014865:Waste Disposal, Fluid / Q000379:methods*
D007220:Industrial Waste; D010758:Phosphorus; D009584:Nitrogen; D008697:Methane