化工学报
化工學報
화공학보
JOURNAL OF CHEMICAL INDUSY AND ENGINEERING (CHINA)
2003年
10期
1482-1485
,共4页
李勇智%彭永臻%王淑滢
李勇智%彭永臻%王淑瀅
리용지%팽영진%왕숙형
短程硝化与反硝化%制药废水%生物脱氮%游离氨%在线控制
短程硝化與反硝化%製藥廢水%生物脫氮%遊離氨%在線控製
단정초화여반초화%제약폐수%생물탈담%유리안%재선공제
partial nitrification and denitrification%pharmaceutical manufacturing wastewater%biological nitrogen removal%free ammonia (FA)%on-line control
In this study, laboratory-scale experiments were conducted by using Sequencing Batch Reactor (SBR) activated sludge process to treat wastewater stream from a pharmaceutical factory. Biological nitrogen removal can be achieved via partial nitrification and denitrification and its efficiency was above 99% at 23℃±1℃. The experimental results indicated that the nitrite oxidizers were more sensitive than ammonia oxidizers to the free ammonia in wastewater. The ammonia was oxidized at pH 7 and 7.5 respectively, which suggested a critical free ammonia concentration of 0.2mg*L-1 at which the nitrite oxidizers were inhibited.
