[Objective] The aim was to treat acidic wastewater containing thallium by enhanced coagulation oxidation process. [Method] Enhanced coagulation oxidation process was made use of to remove thallium in the acidic wastew...[Objective] The aim was to treat acidic wastewater containing thallium by enhanced coagulation oxidation process. [Method] Enhanced coagulation oxidation process was made use of to remove thallium in the acidic wastewater in the experiment under the condition of 0.05 kg/L of potassium permanganate, 30% hydrogen peroxide and 0.05 kg/L calcium hypochlorite as oxidant, together with 0.092 kg/L CaO as coagulation. [Result] The results showed that thallium removal efficiencies achieved 99.98%, 99.1% and 99.95% when dosages of KMnO4, H2O2and Ca（ClO）2were added at 20, 2.2 and 37 ml, respectively, under the condition of 30 ml 0.092kg/L CaO being dosed and 99.93%, 99.69% and 99.98% were achieved when different dosages of CaO were added at 25, 35 and 25 ml, under the condition of 20ml KMnO4, 2.2 ml H2O2and 37 ml Ca（ClO）2respectively. [Conclusion] The experiment demonstrates that good removal effects of removal thallium from the acidic wastewater would be achieved by enhanced coagulation oxidation process.展开更多
文摘目的探索中老年健康体检人群三酰甘油–葡萄糖指数(triglyceride-glucose index,TyG指数)与下肢动脉粥样硬化的相关性。方法选取2018年6月至2019年11月福建省立医院的1935名健康体检人群为研究对象,完善病史采集、体格检查,测定生化指标和踝肱指数(anklebrachialindex,ABI),计算TyG指数。Spearman相关分析评估TyG指数与心血管代谢指标的相关性。分别采用多元线性回归、二元Logistic回归评估TyG指数与ABI的关联,绘制限制性立方样条图。结果TyG指数与年龄、体质量指数(body mass index,BMI)、收缩压、舒张压、总胆固醇、低密度脂蛋白胆固醇(lowdensity lipoprotein-cholesterol,LDL-C)、糖化血红蛋白(glycosylatedhemoglobin,HbA1c)、血清肌酐均呈正相关(P<0.01),与高密度脂蛋白胆固醇呈负相关(P<0.001)。多元线性回归提示,调整协变量后,TyG指数、年龄、LDL-C、HbA1c与ABI显著相关(P<0.001)。二元Logistic回归提示TyG指数每升高0.01,下肢动脉粥样硬化风险升高1.21倍(P=0.031)。限制性立方样条图显示随着TyG指数升高,下肢动脉粥样硬化风险逐渐增加。在TyG指数与下肢动脉粥样硬化的关系中,亚组分析未发现年龄、性别、BMI、高血压、糖尿病病史与TyG指数之间存在显著交互作用。结论中老年健康体检人群中,TyG指数与心血管代谢指标及ABI显著相关,TyG指数是下肢动脉粥样硬化的独立危险因素。
基金National Natural Science Foundation(51208122)Department of Science and Technology of Guangdong Province(2010B030900008)New Special Science and Technology Project of Pearl River and College Students’Innovative Entrepreneurial Training Plan Project in Guangdong Province~~
文摘[Objective] The aim was to treat acidic wastewater containing thallium by enhanced coagulation oxidation process. [Method] Enhanced coagulation oxidation process was made use of to remove thallium in the acidic wastewater in the experiment under the condition of 0.05 kg/L of potassium permanganate, 30% hydrogen peroxide and 0.05 kg/L calcium hypochlorite as oxidant, together with 0.092 kg/L CaO as coagulation. [Result] The results showed that thallium removal efficiencies achieved 99.98%, 99.1% and 99.95% when dosages of KMnO4, H2O2and Ca（ClO）2were added at 20, 2.2 and 37 ml, respectively, under the condition of 30 ml 0.092kg/L CaO being dosed and 99.93%, 99.69% and 99.98% were achieved when different dosages of CaO were added at 25, 35 and 25 ml, under the condition of 20ml KMnO4, 2.2 ml H2O2and 37 ml Ca（ClO）2respectively. [Conclusion] The experiment demonstrates that good removal effects of removal thallium from the acidic wastewater would be achieved by enhanced coagulation oxidation process.
