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砷化镓晶片加工废水处理及近零排放中试研究

open access: yesGongye shui chuli
砷化镓晶片加工生产过程中,产生大量有毒有害的含砷有机废水。采用“除砷预处理+生化处理+深度处理”工艺对砷化镓晶片加工废水进行达标处理及近零排放的中试研究。除砷预处理采用“两级混凝+离子交换树脂”工艺,砷去除率达(99.998±0.003)%以上,出水砷含量稳定达到排放标准。生化处理采用“O3氧化+水解酸化+生物接触氧化”工艺,COD去除率为(95.7±0.3)%,出水水质满足当地园区纳管标准。深度处理采用“超滤+两级反渗透+三效蒸发结晶”,实现废水回用及资源回收。经计算 ...
李伟超   +8 more
doaj  

[Immune dynamics and predictive factors for chronic graft versus host disease following haploidentical hematopoietic stem cell transplantation in children]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Tang RR   +10 more
europepmc   +1 more source

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