摘要
对活性污泥法(AS)和粉末活性炭活性污泥法(PAC-AS)处理碱法草浆黑液进行了比较试验。采用PAC-AS工艺无论是COD、色度的去除率以及系统的运行稳定性和可靠性等方面,均较AS工艺有明显改善。吸附等温试验证明,PAC对活性污泥法处理难降解废水的强化机理,是生物再生和活性炭对生物活性刺激作用的协同效应。
A comparative experiment to treat alkali black liquor from straw pulp-making millis carried out by activted sludge process(AS)and powerder activated carbon-activatedsludge process (PAC-AS) methods. It is shown that the COD, color removal efficien-cies and the stability and reliability of system opration with PAC-AS Process are moreimproved than that with AS Process, and the adsorptive isotherm test points out thatthe strengthening mechanism to treat recalcitrant wastewater by PAC-activated sludgeprocess is the cooperation result of the bioregeneration and stimulus effect of activatedcarbon on the biological activity.
关键词
难降解
活性污泥法
废水处理
activated sludge treatment / adsorption isotherm
recalcitrant wastewater
PAC-AS process
