GAOPei-yue,YEHui,ZHANGDong,et al.Evaluation Index of Startup Period of Pilot?scale Biological Activated Carbon Filter in Drinking Water Treatment Plant[J].China Water & Wastewater,2022,38(15):43-49.
Evaluation Index of Startup Period of Pilot?scale Biological Activated Carbon Filter in Drinking Water Treatment Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第15期
Page:
43-49
Column:
Date of publication:
2022-08-01
- Keywords:
- biological activated carbon; startup period; evaluation index; adenosine triphosphate (ATP)
- Abstract:
- Biological activated carbon (BAC) filter is a mature advanced treatment process applied in drinking water treatment plants. The growth of microorganism attached on BAC surface is an important index to estimate BAC startup period and guide process operation. To determine the BAC startup period, long-term water quality monitoring (monitoring indexes include CODMn, TOC, UV254, pH, DO) and activated carbon adenosine triphosphate (ATP) monitoring pilot tests were carried out. The differences of organic matter concentration and removal efficiency in influent and effluent decreased first and then increased. Different seasons and water sources only affected the occurrence of turning point sooner or later. In winter and spring, the median removal rate was approximately 55%, and the startup time was between 40 days and 60 days. In summer, the median removal rate was approximately 60%, and the startup time was approximately 20 days. There was a certain positive correlation between the dissolved oxygen consumption and pH difference and ATP content. In addition, a model was established to evaluate the biofilm growth on BAC surface, and a new method for estimating the startup period of BAC filter in drinking water treatment plants was proposed.
Last Update:
2022-08-01