论文部分内容阅读
接种活性污泥启动SBR后,研究选择压法培养好氧颗粒污泥(AGS)的过程中接种部分厌氧颗粒污泥对好氧颗粒化进程的影响。随着沉降时间的缩短,在第6天时肉眼即可观察到一些明显的生物胶团,第11天接种质量分数为20%的厌氧颗粒污泥时已出现少量AGS。投加厌氧颗粒污泥后反应器内菌胶团及淡黄色的AGS的比例不断增加,22 d时AGS已处于主导地位,26d时颗粒化率首次超过90%并占据绝对优势,表明反应器成功实现好氧颗粒化。观察发现接种的厌氧颗粒污泥经历了先解体再重新颗粒化过程,并可作为新生颗粒的晶核而缩短自凝聚所需时间。培养过程中反应器表现出较好的污染物去除效果,对COD、TIN及TP的去除率基本在90%、90%及87%以上,表明在同一反应器内成功实现了去除有机物及同步脱氮除磷效果。
Inoculation of activated sludge activated SBR, to study the pressure of aerobic granular sludge (AGS) inoculated part of the anaerobic granular sludge inoculated on aerobic granulation process. With settlement time shortened, some obvious micelles were observed with the naked eye on the 6th day. A small amount of AGS appeared on the 11th day when the anaerobic granular sludge with a mass fraction of 20% was inoculated. After adding anaerobic granular sludge reactor micelles and light yellow AGS ratio continues to increase, AGS has been dominating at 22 d, the first time for more than 90% at 26d granulation rate and occupy an absolute advantage, indicating that the reactor Successful aerobic granulation. It was observed that the inoculated anaerobic granular sludge underwent the process of disintegration and regranulation first, and could be used as the nucleus of newborn particles to shorten the self-agglutination time. During the process of cultivation, the reactor showed better pollutant removal efficiency, and the removal rates of COD, TIN and TP were basically 90%, 90% and 87%, indicating that the removal of organic compounds and simultaneous removal Nitrogen phosphorus removal effect.