摘要
硫自养反硝化技术是污水处理领域的重要突破,该技术以硫为电子供体,在特定微生物作用下实现脱氮,其中填料作为生物载体,为微生物提供了适宜微环境,有助于脱氮反应的高效进行。针对硫自养反硝化技术展开深入试验,设计并制备了多种不同配方的硫自养反硝化脱氮复合填料,通过比较各种填料的总氮去除能力,确定最佳载体填料,并通过设计自养反硝化生物滤池,结合实际废水处理进行了中试研究、工艺设计,成功应用于南化公司硝基氯苯的工业废水处理中。结果表明,基于开发的复合填料和自养反硝化生物滤池,该技术在中试试验和工程应用上均表现出较优的脱氮效果,其平均总氮去除率高达95%以上,处理后的废水菌满足当地的排放标准。
Sulfur autotrophic denitrification technology is an important breakthrough in the field of sewage treatment.This technology uses sulfur as the electron donor and realizes nitrogen removal under the action of specific microorganisms.As a biological carrier,fillers provide a suitable microenvironment for microorganisms and help the efficient progress of denitrification reactions.This study conducts in-depth experiments on sulfur autotrophic denitrification technology.Various formulations of sulfur autotrophic denitrification nitrogen removal composite fillers are designed and prepared.By comparing the total nitrogen removal capabilities of various fillers,the best carrier filler is determined.Through the design of an autotrophic denitrification biofilter,pilot-scale research and process design are carried out in combination with actual wastewater treatment.It is successfully applied to the industrial wastewater treatment of nitrochlorobenzene in SINOPEC Nanjing Chemical Industries Co.,Ltd.The results show that based on the developed composite filler and autotrophic denitrification biofilter,this technology shows excellent nitrogen removal effect in pilot tests and engineering applications.Its average total nitrogen removal rate is as high as more than 95%.The treated wastewater can meet the local emission standard.
作者
杨正刚
YANG Zhenggang(SINOPEC Nanjing Chemical Industries Co.,Ltd.,Nanjing 210048,Jiangsu,China)
出处
《能源化工》
2025年第2期61-68,共8页
Energy Chemical Industry
关键词
硫自养反硝化
脱氮
电子供体
载体填料
工业废水
sulfur autotrophic denitrification
denitrification
electron donor
carrier filler
industrial wastewater
