摘要
以提升水环境的改善效果为目的,研究了纳米二氧化铈在污水处理过程中的应用效果。制备质量浓度分别为400,800,1 600 mg/L的纳米二氧化铈对污水进行处理。试验结果表明,质量浓度为800 mg/L的纳米二氧化铈静态水触角数值较大,其疏水性强,吸附污水内污染物能力较好;3种浓度的纳米二氧化铈均可有效吸附污水内的砷离子、镁离子和钠离子,但800 mg/L的纳米二氧化铈吸附效果最优;不同质量浓度的纳米二氧化铈均有效降低污水的pH值和总需氧量,对水环境改善效应较强,其中800 mg/L的纳米二氧化铈应用效果最优,且对污水内微生物生长具有促进作用,可有效提升水体自洁能力。
The application effect of nano-cerium dioxide in wastewater treatment is studied with the aim of improving the water environment.Nano-cerium dioxide with mass concentration of 400,800,1600 mg/L are prepared for wastewater treatment.The results show that the static water contact angle value of nano-cerium dioxide with a mass concentration of 800 mg/L is relatively large,and its hydrophobicity is strong,and its ability to adsorb pollutants in wastewater is good.Three concentrations of nano-cerium dioxide can effectively adsorb arsenic ions,magnesium ions,and sodium ions in wastewater,but the adsorption effect of nano-cerium dioxide with mass concentration of 800 mg/L is the best.Nano-cerium dioxide with different mass concentration can effectively reduce the pH value and total oxygen demand of wastewater,and has a strong effect on improving the water environment.The nano-cerium dioxide with mass concentration of 800 mg/L has the best application effect,and it has a promoting effect on the growth of microorganisms in the sewage,effectively improving the self-cleaning ability of the water.
作者
廖之坚
LIAO Zhijian(Fuzhou Hengyou Water Co.,Ltd.,Changle 350200,Fujian,China)
出处
《能源化工》
CAS
2023年第2期66-70,共5页
Energy Chemical Industry
关键词
纳米二氧化铈
污水处理
PH值
需氧量
nano-cerium dioxide
wastewater treatment
pH
oxygen demand
作者简介
廖之坚(1986—),男,福建大田人,本科,工程师,主要从事污水处理技术及管理工作。E-mail:68072769@qq.com。
