發(fā)布時(shí)間：2019-03-18 14:04

【摘要】：設(shè)計(jì)了一套城市污泥深井曝氣中試系統(tǒng),研究了該系統(tǒng)對(duì)城市污泥中VSS的去除效果以及溫度、p H值等指標(biāo)的變化規(guī)律,探討相關(guān)運(yùn)行條件對(duì)VSS去除率及系統(tǒng)內(nèi)升溫的影響。結(jié)果表明,深井曝氣中試系統(tǒng)運(yùn)行到第18天時(shí),一級(jí)反應(yīng)區(qū)溫度能達(dá)到50.2℃,溫度越高則VSS去除率也越高;曝氣量不能過(guò)高或過(guò)低,對(duì)于VSS含量為38.5 g/L的污泥,曝氣量取1.5~1.8 L/(h·L污泥)為宜,VSS去除率可達(dá)到40.1%;微氧環(huán)境有利于VSS的降解,在消化過(guò)程中反應(yīng)器內(nèi)ORP最低為-256 m V;反應(yīng)器中不僅有好氧菌,還存在厭氧菌和兼性菌。
[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，

本文編號(hào)：2442933