兼氧型MBR工艺_气化除磷_效果研究.pdfVIP

第 26卷 第 11期 中国给 水排 水 Vol. 26 No. 11 2010年 6月 C INA WATER WASTEWATER Jun. 2010 MBR 廖志民 (江西金达莱环保研发中心有限公司, 江西 南昌 330100) : 开发了兼氧型 MBR 工艺并用于处 生活污水,在 DO为 0. 1~ 3. 0 mg/LMLSS为 15 350mg/L的条件下, 该工艺对COD和TP的平均去除率分别为 94. 6%和71. 1%; 而好氧型MBR 工艺对COD和TP的平均去除率仅分别为 87. 5%和 40. 6%检测结果表明, 兼氧型 MBR 工艺中 污泥的磷含量较稳定,并可释放出 1. 52~ 4. 55 g/L的 P 气体; 而好氧型MBR 工艺仅有微量的 3 P 气体排出兼氧型MBR工艺能够同步降解 COD和气化除磷, 这对于污水处 厂的除磷改 3 造具有重大意义 : 兼氧型MBR 工艺; 污水处 ; 气化除磷; 磷化氢 : X703 : C : 1000- 4602( 2010) 11- 0051- 03 P erform ance of Facu ltativeM BR P rocess for Phosphoru s R em oval by G asification LIAO Zh-im in (J iangx i J indala i Environm entalP ro tection R esearch and D eve lopm ent C enter Co. L td., N anchang 330100, Ch ina) A bstract: A facultativeMBR processwas developed and used to treatdomestic sewage. The aver- age removal rates ofCOD andTP in the facultativeMBR are94. 6% and 71. 1% respectively atMLSS of 15 350mg/L andDO of0. 1 to3. 0mg/L. While in the aerobicMBR, the removalratesofCOD and TP are only 87. 5% and 40. 6% respectively. Thephosphorus content in the sludgeof the facultativeMBR is stable, and phosphine of 1. 52 to 4. 55 g/L can be released, while a trace amount of phosphine is re- leased from the aerobicMBR. The facultativeMBR is able to removeCOD andTP smi ultaneously, and it is of mi portant significance for the reconstruction of phosphorus removal process in municipalwastewater treatment. K ey w ord s: facultativeMBR; wastewater treatment; phosphorus removal by gasification; phosphine , , / ,