MUYing,GAOChen-chen,SUNYong-li,et al.Analysis of Utilization Potential of Sediment Pollutants Deposited in Sewage Pipelines[J].China Water & Wastewater,2023,39(7):114-119.
Analysis of Utilization Potential of Sediment Pollutants Deposited in Sewage Pipelines
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第7期
Page:
114-119
Column:
Date of publication:
2023-04-01
- Keywords:
- sewage pipeline; deposited sediment; pollutant characteristics; carbon source availability
- Abstract:
- This paper analyzed the content and proportion of conventional pollutants such as carbon, nitrogen, phosphorus and VSS/SS in the sediment from a municipal sewage pipeline in North China, and explored the dissolution conditions of sediment pollutants to overlying water in the municipal sewage pipeline and the utilization potential of carbon sources for sewage treatment. The content of carbon, nitrogen and phosphorus in the sediment from the sewage pipeline was high and characterized by high COD/TN and COD/TP (37.8 and 180.4). In addition, the BOD5/TN and BOD5/TP were 8.4 and 40.3, respectively. Proper stirring-sedimentation process achieved efficient extraction of biodegradable carbon sources from the sediment. The BOD5/TN and BOD5/TP in overlying water increased to 11.2 and 48.4, respectively, and the proportion of organic components increased from 35% to 52%.
Last Update:
2023-04-01