CAJ | 학술논문

对经热处理后的厌氧污泥利用啤酒废水厌氧产氢的影响因素(温度、初始pH值和有机物浓度)进行了研究.结果表明,温度与初始pH值对厌氧产氢过程均有显著影响.最佳温度为35℃,此时,比产氢速率、氢气产率、VFA含量与总糖降解率均达到最大,分别为10.16mL/g-VSS·h、0.1673mL/mg·COD、4640.0mg/L和95.20%.最适初始pH值为6.0～7.0,在此范围内氢气产率、VFA含量、总糖降解率均可获得最大值.一个半经验模型适用于描述初始pH值与氢气产率之间的相互关系.在35℃、初始pH值6.5的条件下,有机物浓度COD1000mg/L～2000mg/L时,总糖降解率与VFA产率均获得最大值.底物抑制模型分析结果显示COD1587mg/L时,氢气产率(0.1935mL/mg·COD)达到最大.
대경열처리후적염양오니이용비주폐수염양산경적영향인소(온도、초시pH치화유궤물농도)진행료연구.결과표명,온도여초시pH치대염양산경과정균유현저영향.최가온도위35℃,차시,비산경속솔、경기산솔、VFA함량여총당강해솔균체도최대,분별위10.16mL/g-VSS·h、0.1673mL/mg·COD、4640.0mg/L화95.20%.최괄초시pH치위6.0～7.0,재차범위내경기산솔、VFA함량、총당강해솔균가획득최대치.일개반경험모형괄용우묘술초시pH치여경기산솔지간적상호관계.재35℃、초시pH치6.5적조건하,유궤물농도COD1000mg/L～2000mg/L시,총당강해솔여VFA산솔균획득최대치.저물억제모형분석결과현시COD1587mg/L시,경기산솔(0.1935mL/mg·COD)체도최대.
Effects of major factors like temperature,initial pH and organic concentration on anaerobic fermentative bio-hydrogen production from brewery wastewater were investigated using pre-heated anaerobic sludge as seed sludge.The results showed that both temperature and initial pH values had significant influence on the anaerobic bio-hydrogen production process.The maximum specific H_2 production rate of 10.16 mL/g-VSS·h,H_2 yield of 0.1673 mL/mg COD,VFA concentration of 4640.0 mg/L and total sugar degradation rate of 95.20% were achieved at the optimal temperature of 35℃.The H_2 yield,VFA concentrations and total sugar degradation rate were all reached the highest at the optimal initial pH of 6.0 to 7.0.A semi-empirical was able to describe properly the relationship between initial pH and H_2 yield.At 35℃ and initial pH of 6.5,the maximum total sugar degradation rate and VFA yield were obtained at the organic concentration of 1000 mg/L to 2000 mg/L COD.The calculated maximum H℃ yield of 0.1935 mL/mg COD was reached at COD of 1587 mg/L by substrate inhibition model.