化纤厂PTA废水处理污泥生物减量效果及影响因子  

Study on bio-reduction effect and influenceingfactors of PTA sewage sludge in chemical fiber plant

作　　者：沈悦 胡修韧 田甘沛 边博 SHEN Yue;HU Xiu-ren;TIAN Gan-pei;BIAN Bo(School of Environment,Nanjing Normal University,Nanjing 210046,China)

机构地区：[1]南京师范大学环境学院,江苏南京210046

出　　处：《中国环境科学》2020年第5期2140-2147,共8页China Environmental Science

基　　金：水体污染控制与治理科技重大专项(2017ZX07202-004);江苏省科技支撑社会发展项目(BE2017631)。

摘　　要：通过小试试验研究PTA废水处理污泥生物减量效果及影响因子,结果表明,一次性进料、设备温度60℃、菌剂占污泥干基比例4%,可实现污泥含水率、干物质和毒性物质(钴)分别减少79%、22%和9%的最佳减量效果.基于污泥生物减量过程中多参数、三维荧光和微生物属水平变化并结合相关和主成分分析,探明了影响PTA污泥生物减量的关键因子分别为温度、电导率、胡富比、碳氮比、溶解性有机碳和8种微生物菌属(即为Gemmatimonas、Pelotomaculum、Azohydromonas、Pseudomonas、Paeniglutamicibacter、Weissella、Nitrospira、Novosphingobium).研究结果可为化纤厂PTA污泥生物减量提供科学依据.In this study,microbial reduction method was used to determine the optimal reduction effect.The results showed that under the condition of one-time feeding,equipment temperature controlled at 60℃and the dosage of microbial agent accounted for 4%of the dry weight of sludge,the optimal reduction effect was:the water,dry matter and toxic substances(i.e.Co)reduction rate reached 79.4%,22%,and 9%,respectivity.Based on correlation analysis and principal component analysis,temperature,electrical conductivity,humic/fulvic acid ratio,carbon/nitrogen ratio and dissolved organic carbon,as well as 8genera(i.e.Novosphingobium,Nitrospira,Azohydromonas,Gemmatimonas,Pseudomonas,Pelotomaculum,Paeniglutamicibacter and Weissella)were determined as the key factors affecting the bio-reduction effect.The research results provide a scientific basis for the bio-reduction ofPTA sewage sludge in chemical fiber plants.

关 键 词：PTA污泥 生物减量 减量效果 影响因子 

分 类 号：X705[环境科学与工程—环境工程]