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重金属杂质对磷酸铵镁结晶法处理制药废水的影响

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2013-12-05

Journal: 环境工程学报

Included Journals: CSCD、ISTIC、PKU、Scopus

Volume: 7

Issue: 12

Page Number: 4866-4868

ISSN: 1673-9108

Key Words: 磷酸铵镁;杂质;制药废水;晶种

Abstract: 磷酸铵镁沉淀法处理废水时常受众多因素影响,其中重金属类杂质对该过程影响较大.实验研究了Mn2+、Cu2杂质存在条件下,用该法去除制药废水中PO43-、NH4污染物,同时,用XRD、XRF、SEM等手段研究了所得鸟粪石晶体特征.结果表明,pH为9.5时,Mn2+、Cu2+杂质存在条件下,PO43-去除率分别为88%和85%,投加晶种有利于回收特定晶形鸟粪石,Cu2+对磷酸铵镁结晶过程的影响较Mn2+存在时显著.

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