摘要
污水污泥产量与日俱增,如何有效处理已成为污水处理厂的一大难题。污泥资源化利用是污泥最有效的处置方法。本文设计了一套污泥好氧消化装置,在预热和保温的作用下,反应器能维持在高温状态下运行,在设计进泥含固率5%~6.5%、搅拌速度80 r/min、曝气量0.12 m^(3)/h参数条件下,固体停留时间为10 d时,消化出泥挥发性有机物(VSS)降解率达到最高,为55%,出泥的病原菌达到“未检出”的状态,出泥实现了稳定化和无害化的标准,能实现污泥资源化利用的目标。
The production of sewage sludge is increasing day by day,and how to effectively treat it has become a major challenge for sewage treatment plants.The utilization of sludge resources is the most effective method for sludge disposal.This paper designed a sludge aerobic digestion device,which could maintain the operation of the reactor at high temperature under the action of preheating and insulation.Under the design parameters of sludge solid content 5%~6.5%,stirring speed 80 r/min,and aeration rate 0.12 m^(3)/h,when the solid retention time was 10 d,the degradation rate of the digested sludge reached the highest 55%.The pathogenic bacteria in the sludge was "undetected",and the sludge achieved the standards of stabilization and harmless treatment,then achieve the goal of sludge resource utilization.
作者
潘露娜
Pan Lu'na(Guangdong Huizhou Huicheng Ecological Environment Monitoring Station,Huizhou Guangdong 516001,China)
出处
《山西化工》
CAS
2024年第5期251-253,257,共4页
Shanxi Chemical Industry
关键词
污泥
自热高温好氧消化
稳定化
无害化
资源化
sludge
autothermal high-temperature aerobic digestion
stabilization
harmless treatment
resource utilization
