SUNXue-jin,LüYang,HEMing-shui,et al.Design of Ozone-Biological Activated Carbon Process for a Waterworks in Severe Cold Region[J].China Water & Wastewater,2025,41(16):72-77.
Design of Ozone-Biological Activated Carbon Process for a Waterworks in Severe Cold Region
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第16期
Page:
72-77
Column:
Date of publication:
2025-08-17
- Keywords:
- waterworks; low-temperature water source; ozone-biological activated carbon process; bio-enhanced activated carbon (BEAC)
- Abstract:
- A waterworks in Heilongjiang Province originally utilized conventional treatment processes, which encountered issues such as outdated equipment, and reduced water temperature adversely affecting treatment efficiency during winter. As a result, the effluent quality failed to consistently meet the requirements specified in Standards for Drinking Water Quality (GB 5749-2022). Therefore, a proposal was made to reconstruct the facility on its existing site. The advanced treatment process employed a bio-enhanced activated carbon (BEAC) system, which was established using functional bacterial communities dominated by Acinetobacter harbinensis (strain HITLi 7T), to enhance biological activity within the activated carbon filter. Additionally, this process incorporated a new generation of high-efficiency coal-based activated carbon and was further supported by a UV-chlorine coupling technique to improve the removal efficiencies of ammonia nitrogen and organic substances. After the reconstruction, the ammonia nitrogen and CODMn in the effluent were reduced to 0.07 mg/L and 1.32 mg/L, respectively. Compared with the pre-reconstruction levels, both the removal efficiency and stability of these two parameters were significantly enhanced. The upgraded treatment process ensured that the effluent quality complied with the national standard, effectively integrating water quality assurance with economic viability. This approach holds practical reference value for the process design of similar waterworks operating in severely cold regions.
Last Update:
2025-08-17