SBR处理铁路洗涤废水试验研究

铁路洗涤废水中含有的主要污染物直链烷基苯磺酸钠(LAS)是我国环境标准中第2类污染物质.目前,铁路洗涤废水的处理以物理和化学法为主,存在效果不稳定、成本较高和工艺复杂等问题,急需寻求一种适合铁路洗涤废水特点的处理工艺.用SBR小试装置进行铁路洗涤废水处理实验研究,并且投加LAS降解菌于SBR中,进行了工艺参数的确定,处理效果考察和投菌前后对比等方面的初步研究.

Treatment of Train Laundry Wastewater by Sequencing Batch Reactor

Linear Alkylbenzene Sulphonate(LAS),the key pollutant of the train laundry wastewater,is classified as the second kind of contaminant of environmental standard.At present train laundry wastewater is mainly treated by means of physical and chemical processes,but there are some problems existed in these methods,suoh as unstable treatment results,the higher cost and the complicated process.It is imperative that one suitable process should be found to treat this kind of wastewater.The cultere medium composition,the incubation time and the suitable amoune of inoculums in the traln laundry wastewater of an.Alcaligenes sp.Strain are determined in this paper.Lab-scale sequencing batch reactor(SBR) is used to treat the railway laundry wastewater and also the Alcaligenes sp.Strain is put into the SBR equipment.Preliminary research on the determination of process parameters and the observation of the treatment results are conducted,as well as the contrast between the conventional process and the addictive microorganism process.