污水处理厂SV_(30)值持续较高的原因与控制措施

Reason Analysis and Control Measures of Persistently High SV_(30) in WWTP

潍坊市污水处理厂采用奥贝尔氧化沟工艺,近几年来SV30、SVI值一直较高。通过对SV30值较高的原因进行全面分析后采取了相应的控制措施,包括控制进水水质、加强排泥、提高曝气池的DO、控制污泥负荷等。经过一个多月的运行,SV30值基本稳定在30%～60%。

In recent years, SV30 and SVI have always been high in Orbal oxidation ditch process adopted in Weifang WWTP. Through the overall analysis, the reasons for high SV30 were found, and the relevant control measures were taken, including controlling the influent quality, enhancing sludge discharge, improving DO in aeration tank and controlling sludge load. After the operation for more than one month, SV30 is basically stable at 30% to 60%.