CAJ | 학술논문

采用模拟废水研究了有效碱度对螺旋式自循环(SPAC))厌氧反应器运行性能的影响.结果表明,SPAC厌氧反应器的最大容积负荷为53.0 g/(L·d),化学耗氧量(CDD)去除率为84.2%,容积负荷承载力为44.6 g/(L·d),容积沼气产率为21.50 L/(L·d).在最佳工况下,碱度供给速率为9.6 g/(L·d).碱度消耗速率为4.8 g/(L·d),有效碱度为1 000 mg/L.进水碱度与进水COD之比为0.19,出水碱度与挥发性有机酸(VFA)之比(ALKout/VFA)为1.75,消耗碱度与去除COD之比为0.10.
채용모의폐수연구료유효감도대라선식자순배(SPAC))염양반응기운행성능적영향.결과표명,SPAC염양반응기적최대용적부하위53.0 g/(L·d),화학모양량(CDD)거제솔위84.2%,용적부하승재력위44.6 g/(L·d),용적소기산솔위21.50 L/(L·d).재최가공황하,감도공급속솔위9.6 g/(L·d).감도소모속솔위4.8 g/(L·d),유효감도위1 000 mg/L.진수감도여진수COD지비위0.19,출수감도여휘발성유궤산(VFA)지비(ALKout/VFA)위1.75,소모감도여거제COD지비위0.10.
The influence of effective alkalinity on performance of spiral automatic circulation (SPAC) anaerobic reactor was investigated. The results showed that the maxmium volumetric loading rate was 53. 0 g/(L · d), the maxmium volumetric removal rate was 44. 6 g/(L · d) and the maxmuim volumetric biogas production rate was 21. 50 L/(L · d). Under the optimal conditions, the rates of alkalinity supply and alkalinity consumption were 9. 6 g/(L · d) and 4. 8 g/(L · d) , respectively, and effective alkalinity was 1 000 mg/L. The ratio of influent alkalinity (ALK) to chemical oxygen demand (COD) (ALK_(in)/COD_(in)) was 0. 19, the ratio of effluent alkalinity to volatile fatty acids (VFAXALKom/VFA) was 1. 75 and the ratio of consumed alkalinity to removed COD (ALK_(com)/COD_(rem)) was 0. 10.