CAJ | 학술논문

利用蒽醌-2,6,-双磺酸(AQDS)为模式物在厌氧消化过程中富集醌呼吸微生物,考察了富集产物厌氧消化同步醌呼吸的产气特性和对有毒物质的转化.结果发现,富集产物具有较强的腐殖质还原能力,CO2：CH4为1.7,高于未富集污泥；不同来源的腐殖质因其具有不同的分子结构和醌功能基团数量,对污泥的醌呼吸的促进作用有所差别,而可从还原性腐殖质接受电子的 Fe(III)可显著加强醌呼吸速率；醌呼吸微生物在pH4.5~6条件下获得较高活性,说明此时醌呼吸对厌氧消化贡献较大；富集产物以乙酸为电子供体时可快速转化苯和三氯乙烯,27h的转化率分为85.9%和82.2%,并可以苯为电子供体以三氯乙烯为电子受体同时降解苯和还原三氯乙烯,30h 内的转化率分别为81.7%和68.8%.
이용은곤-2,6,-쌍광산(AQDS)위모식물재염양소화과정중부집곤호흡미생물,고찰료부집산물염양소화동보곤호흡적산기특성화대유독물질적전화.결과발현,부집산물구유교강적부식질환원능력,CO2：CH4위1.7,고우미부집오니；불동래원적부식질인기구유불동적분자결구화곤공능기단수량,대오니적곤호흡적촉진작용유소차별,이가종환원성부식질접수전자적 Fe(III)가현저가강곤호흡속솔；곤호흡미생물재pH4.5~6조건하획득교고활성,설명차시곤호흡대염양소화공헌교대；부집산물이을산위전자공체시가쾌속전화분화삼록을희,27h적전화솔분위85.9%화82.2%,병가이분위전자공체이삼록을희위전자수체동시강해분화환원삼록을희,30h 내적전화솔분별위81.7%화68.8%.
In this study, anthraquinone-2 ,6 ,-disulfonic acid (AQDS) was employed as a model substance to enrich the quinone respiration bacteria in the process of anaerobic digestion. The characteristics of gas production were investigated as well as the toxic substance conversion in sludge by enriched quinone respiration bacteria . A high humus reducing capacity for enriched anaerobic sludge was verified with a high ratio of CO2:CH4=1.7. The quinone respiration rate was found to vary while adding different sources of humus which can be attributed to different molecular structures and numbers for quinone functional groups. Fe (III), which is able to accept electron from a reductive humus, can significantly enhance quinone respiration rate. Quinone respiration in pH (4.5~6) showed the results of higher activity which indicated that at this pH, quinone respiration is likely to contribute more to anaerobic digestion. Enriched sludge can rapidly convert benzene and richlorethylene into CO2 with acetate as an electron donor. For example, the conversion rates were up to 85.9%and 82.2%in 27h which can also oxidize benzene as an electron donor and deoxidize trichlorethylene as electron acceptor simultaneously, whose conversion rates were about 81.7%and 68.8%within 30h.