[关键词]
[摘要]
以化粪池粪便污泥为研究对象,采用中温( 35 ℃)厌氧消化,比较不投加复合微生物制HBHII(CK)、直接投加0.005%的HBHII(T1处理)和巴氏灭菌后投加0.005%的HBHII(T2处理)3种处理方式下粪便污泥总固体(TS)、挥发性固体(VS)和COD的减量效果,并对比了各处理粪便污泥消化前后的泥质特点和消化效率。结果表明:经过21 d的厌氧消化,T1的TS、VS和COD的去除率分别为46.03%、49.96%和47.06%,比CK分别高14.89%、16.26%和15.53%,比T2的分
[Key word]
[Abstract]
The paper selects septic tank nightsoil sludge as the study object, and conducts three treatments for nightsoil sludge anaerobic digestion reduction under 35 ℃ including CK treatment(without HBHII compound microorganism), T1 treatment(adding 0.005% HBHII compound microorganism in the original nightsoil sludge system) and T2 treatment(adding 0.005% HBHII compound microorganism after the nightsoil sludge was sterilized by pasteurism). It investigates the removal rate of total solid (TS), volatile solid (VS) and COD of the three treatments, and analyzes the main contents of nightsoil sludge before and after anaerobic digestion and the digestion efficiencies of them. The results indicate that the removal rates of TS, VS and COD of T1 are 46.03%, 49.96% and 47.06%, respectively, and there are 14.89%, 16.26% and 15.53% higher than CK, 6.63%, 8.02% and 11.90% higher than T2, respectively. There are significantly positive (p<0.01) relations between T1 and CK, and T1 and T2 in the removal rate of TS, VS and COD. The nightsoil sludge digestion efficiencies of CK, T1 and T2 are 34.69%, 51.09% and 43.05%, respectively and that of T1 significantly positive(p<0.01) differs from CK and T1 treatment. The results indicate that the corporate effect of the adding HBHII compound microorganism and the original microorganism of the nightsoil sludge system are helpful to the reduction of septic tank nightsoil sludge and it is feasible for directly adding HBHII compound microorganism to septic tank for the reduction of the nightsoil sludge in it.
[中图分类号]
[基金项目]
重庆市市政委资助项目(市政科20074)