CAJ | 학술논문

以生活垃圾堆肥厂初期渗滤液为对象,以厌氧颗粒污泥为接种物,研究了液体上升流速(V up)对EGSB反应器厌氧发酵制氢系统的影响。分析了进、出水中CODCr、 pH值、挥发性脂肪酸(VFAs)的变化及产气量和成分。结果表明在中温(35±1)℃, pH值为5.0~5.5,水力停留时间为24 h的条件下,液体上升速度的变化对系统的产氢能力有所影响,在V up为3.7 m/h时,系统的CODCr去除率、氢气产生速率分别为49.6%~51.6%、1996~2183 mL/(L?d),两者值均高于其它阶段,液相末端发酵产物中乙醇和乙酸总量占VFAs总量的80%以上,发酵类型以乙醇型发酵为主。
이생활랄급퇴비엄초기삼려액위대상,이염양과립오니위접충물,연구료액체상승류속(V up)대EGSB반응기염양발효제경계통적영향。분석료진、출수중CODCr、 pH치、휘발성지방산(VFAs)적변화급산기량화성분。결과표명재중온(35±1)℃, pH치위5.0~5.5,수력정류시간위24 h적조건하,액체상승속도적변화대계통적산경능력유소영향,재V up위3.7 m/h시,계통적CODCr거제솔、경기산생속솔분별위49.6%~51.6%、1996~2183 mL/(L?d),량자치균고우기타계단,액상말단발효산물중을순화을산총량점VFAs총량적80%이상,발효류형이을순형발효위주。
Taking initial landfill leachate from a household garbage composting plant as the research object, the influence of liquid upflow velocity(V up) on anaerobic fermentative hydrogen production by EGSB reactor in-oculated with anaerobic granular sludge was studied. The concentrations of CODCr, pH value and VFAs in influ-ent and effluent water as well as the yield and composition of hydrogen were analyzed. The results showed that, at medium temperature(35 ± 1℃), when the pH value was 5.0-5.5, the HRT was 24 h, liquid upflow velocity im-pacted the hydrogen production capability of the said system, when the V up was 3.7 m/h, both the removal rate of CODCr(49.6%-51.6%) and the hydrogen production velocity(1 996-2 183 mL/(L?d)) were higher than those of other phases. Ethanol and acetic acid accounted for more than 80% of VFAs in liquid end fermentation prod-ucts, which suggested that ethanol type fermentation was the main fermentation type.