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γ-射线辐照法处理剩余活性污泥的试验研究
Experimental Study on Effects of Residual Sewage Sludge by Gamma-ray Irradiation Treatment
【摘要】 采用γ-射线辐照法对城市剩余活性污泥进行处理,探讨了γ-射线辐照对污泥理化性质的影响.试验结果表明,在吸收剂量为0~15 k Gy范围内,污泥的p H和ORP没有显著变化,不会对污泥后续处理处置带来不利影响.污泥碱度有所提高,沉降—浓缩性和离心脱水性得到明显改善,TS、VS、TSS和VSS均有所下降,表明γ-射线可以破解污泥细胞组分,有利于污泥减量.
【Abstract】 Gamma-ray irradiation effects on residual sewage sludge were studied from the physicochemical characteristics. Results showed that,at irradiation dose from 0 to 15 k Gy,p H and ORP remained constant. Alkalinity was increased,sedimentation-thickening property and dewatering property were clearly improved,and TS,VS,TSS,VSS were decreased which could break sludge cellular components,leading to sludge reduction.
【基金】 国家自然科学基金资助项目(11475080);高等学校博士学科点专项科研基金资助项目(20134324110003)
- 【文献出处】 南华大学学报(自然科学版) ,Journal of University of South China(Science and Technology) , 编辑部邮箱 ,2015年03期
- 【分类号】X703
- 【被引频次】1
- 【下载频次】92