本文選題：城市污泥　切入點：SCB發(fā)酵劑　出處：《江蘇農(nóng)業(yè)科學(xué)》2017年15期

【摘要】：采用靜態(tài)強制通風(fēng)好氧堆肥的方法,評價發(fā)酵劑對城市污泥堆肥的效果。以牛糞、回填料、麥秸稈為調(diào)理劑,接種SCB發(fā)酵劑,在堆肥反應(yīng)器中模擬堆肥過程,監(jiān)測堆體的溫度、含水率、pH值及種子發(fā)芽指數(shù)等指標的動態(tài)變化,并設(shè)置對照堆體;試驗堆體添加功能菌群進行二次發(fā)酵。試驗堆體在堆肥的第4天最高溫度達62.5℃,高溫期(≥55℃)持續(xù)5 d,對照堆體55℃維持4 d;第11天時,試驗堆體含水率由58.6%下降到45.3%,下降了22.7%,對照堆體含水率下降了19%;試驗堆體和對照堆體的pH值在第5天時分別為8.0和7.8;堆肥第11天時,兩者種子發(fā)芽指數(shù)達到68.7%和60.6%,均沒有植物毒性。二次發(fā)酵后的堆肥產(chǎn)品的各項指標均符合CJ/T 309—2009《城鎮(zhèn)污水處理廠污泥處置農(nóng)用泥質(zhì)》標準。結(jié)果表明,接種發(fā)酵劑能加速污泥腐熟化進程,達到無害化和資源化利用目的。
[Abstract]:Static forced ventilation aerobic composting was used to evaluate the effect of starter on municipal sludge composting.The process of composting was simulated in the composting reactor with cow manure, backfill and wheat straw as conditioning agent. The dynamic changes of temperature, moisture content, pH value and seed germination index were monitored in the composting reactor, and the control reactor was set up.The secondary fermentation was carried out by adding functional bacteria to the reactor.The maximum temperature of the test reactor reached 62.5 鈩，

本文編號：1725326