深井曝气法处理城市污泥中试研究

发布时间：2019-03-18 14:04

【摘要】：设计了一套城市污泥深井曝气中试系统,研究了该系统对城市污泥中VSS的去除效果以及温度、p H值等指标的变化规律,探讨相关运行条件对VSS去除率及系统内升温的影响。结果表明,深井曝气中试系统运行到第18天时,一级反应区温度能达到50.2℃,温度越高则VSS去除率也越高;曝气量不能过高或过低,对于VSS含量为38.5 g/L的污泥,曝气量取1.5~1.8 L/(h·L污泥)为宜,VSS去除率可达到40.1%;微氧环境有利于VSS的降解,在消化过程中反应器内ORP最低为-256 m V;反应器中不仅有好氧菌,还存在厌氧菌和兼性菌。
[Abstract]:A set of urban sludge deep well aeration pilot-scale system was designed to study the effect of the system on the removal of VSS in urban sludge and the change of temperature and p-H value, and to explore the effect of relevant operating conditions on the removal rate of VSS and the temperature rise in the system. The results show that the higher the temperature of the primary reaction zone can reach 50.2 鈩，

本文编号：2442933