CHEN Hong-ji,YE Chang-ming,DAI Wen-quan,et al.Application of Two-stage Upflow Biofilter Modular Equipment in Upgrading of a WWTP[J].China Water & Wastewater,2021,37(12 12):132-135.
Application of Two-stage Upflow Biofilter Modular Equipment in Upgrading of a WWTP
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
12 12
Page:
132-135
Column:
Date of publication:
2021-06-17
- Abstract:
- For some municipal wastewater treatment plants (WWTP), the influent and effluent quality fluctuates greatly with seasons. Taking the WWTP in Pingding County of Shanxi Province as an example, the effluent TN cannot meet the criteria (TN≤10 mg/L) in summer and NH3-N cannot meet the criteria in winter according to the quasi-Ⅴ level criteria in Environmental Quality Standards for Surface Water (GB 3838-2002). Nitrification and denitrification can be switched according to water quality treatment requirements by adding the advanced treatment process of two-stage upflow biofilter with special water and air distribution system, so as to ensure TN and NH3-N to reach the standard stably throughout the year. This project adopts the construction mode of intelligent modular equipments, which has the advantages of convenient installation, small occupation area and no restriction of construction site.
Last Update:
2021-06-17