摘要
对铁氧体与镉共沉淀进行了试验研究,并探讨了主要技术参数。结果表明,模拟废水中Cd2+含量在50～200mg·L-1时,在常温、Fe3+/Fe2+(质量比)=2、投料比Fe2+/Cd2+(质量比)=4、pH=10的条件下,Cd2+的去除率可达99%以上,出水镉含量小于0 1mg·L-1,达到排放标准。
The treatment of cadmium-containing wastewater prepared in the laboratory has been tested by producing ferrite. This method has a high capacity of removing cadmium under the conditions of 50～(200 mg·L^(-1)) of cadmium, Fe^(2+)/Cd^(2+)(the mass ratio)=4,Fe^(3+)/Fe^(2+)(the mass ratio)=2, t=20℃, pH=10.The removal efficiency of Cd^(2+) is up to above 99%. The concentration of cadmium in treated wastewater could be decreased to less than (0.1 mg·L^(-1)), which was below the drainaged standard.
出处
《化学与生物工程》
CAS
2004年第6期44-45,共2页
Chemistry & Bioengineering
关键词
废水处理
镉
铁氧体
共沉淀
wastewater treatment
cadmium
ferrite
concomitance deposition
