滨河带真空截污工程设计与效果监测

基于北市河滨河带入河排污口污水排放量及地形地质调研,设计了北市河真空截污工程,并进行了效果监测。监测结果表明,系统每小时负压漏损率<5%,收集污水量为50～220m3/d;系统室内突发噪声最大为91.9 dB,室外为70.3 dB,达到企业及城市区域标准,泵站周边未检出H2S、NH3,系统不存在噪声及臭气问题;从经济投资及截污效果看,真空排水系统不宜在常规条件下进行推广,而应该作为重力排水系统的补充在特殊地形地质等区域进行推广使用。

Design and Effect Monitoring of Riverside Vacuum Sewage Interception Project

Based on the sewage discharge quantity from the riverside discharge outlets into the Beishi River and the investigation on the geology and topography,the vacuum sewage interception project of the Beishi River was designed,and the effect monitoring was performed.The results show that the system collects sewage of 50 to 220 m3/d with hourly negative pressure leakage rate of less than 5%.The maximum sudden noise during the system operation is 70.3 dB outdoors and 91.9 dB indoors,which meets the requirements of the enterprise and urban regional noise criteria.H2S and NH3 are not detected around the pumping station.So the system has no noise and odor problems.From the point of view of economic investment and interception effect,the vacuum drainage system should not be applied under conventional conditions but should be used under special topographical and geological conditions as a beneficial supplement of gravity drainage system.