摘要
在实际工程中水解池由于活性污泥量问题,水解效果不好。针对传统工艺的不足,研究采用改进型编织设备,以PP棉为衬底、涤纶丝为骨架、生物碳纤维为核心制备特殊处理(ST)-仿生填料,将其加入水解池中以期提高水解效果,并开展了处理效果实验验证。实验结果显示:该填料具有优良的生物附着性,可极大提高微生物附着量,从而使废水的可生化性得到强化;在挂膜实验中,ST-仿生填料表面的活性污泥量在前20 d快速增长,20 d之后活性污泥量可基本稳定在1.4 kg/m;与传统活性污泥法相比,ST-仿生填料生化反应系统对废水中COD的去除率可提高5%~14%左右。鉴于ST-仿生填料灵活的装配方式和良好的处理效果,其在工业污水处理厂水解酸化池、生化池等生化段提标改造工程具有较好的推广应用前景。
The hydrolysis efficiency was not good in actual hydrolysis engineering due to the problem of insufficient total activated sludge quantity.In order to overcome the shortcomings of these traditional processes,this study utilized an improved knitting equipment to prepare a special treatment(ST)-bionic filler with PP cotton as the substrate,polyester fiber as the skeleton,and biological carbon fiber as the core.This fiber was put into hydrolysis tank to enhance the hydrolysis efficiency,and experiments were conducted to verify its treatment effectiveness.The experimental results showed that the filler possessed excellent biological adhesion and microbial attachment amount,thereby enhancing the biodegradability of wastewater.In the film culture experiment,the amount of activated sludge on the surface of ST-bionic filler showed rapid growth within the initial 20 days,and the amount of activated sludge could be basically stabilized at 1.4 kg/m after 20 days.Compared with the traditional activated sludge method,the removal proportion of COD in wastewater by the ST-bionic filler biochemical reaction system could be raised by about 5%to 14%.In view of the flexible assembly method and excellent treatment effect of ST-bionic filler,this filler held a promising potential for widespread application in upgrading projects of industrial wastewater treatment plants,particularly in hydrolysis acidification tanks and biochemical reactors.
作者
付朝臣
刘啸林
李炳华
马尧
FU Chaochen;LIU Xiaolin;LI Binghua;MA Yao(Hebei University of Engineering,Handan 056038,China;China University of Geosciences(Beijing),Beijing 100083,China;Beijing Water Science and Technology Institute,Beijing 100048,China;Daning Management Office of the Beijing South-to-North Water Diversion,Beijing 102442,China)
出处
《北京水务》
2023年第6期63-67,共5页
Beijing Water
