活性炭上吸附態(tài)重金屬穩(wěn)定性
發(fā)布時(shí)間:2018-05-31 18:56
本文選題:活性炭 + 重金屬�。� 參考:《環(huán)境工程學(xué)報(bào)》2017年01期
【摘要】:為評(píng)價(jià)吸附后活性炭上重金屬穩(wěn)定性,采用BCR(European Communities Bureau of Reference)連續(xù)浸提法對(duì)吸附于活性炭上的重金屬形態(tài)進(jìn)行分析,分為可交換態(tài)、可還原態(tài)、可氧化態(tài)和殘?jiān)鼞B(tài)。結(jié)果表明:未改性、硝酸改性、氨改性活性炭上Cr(Ⅵ)、Pb(Ⅱ)、Cd(Ⅱ)以殘?jiān)鼞B(tài)穩(wěn)定態(tài)為主,均在80%左右,在環(huán)境中的遷移性低,且改性后活性炭上重金屬殘?jiān)鼞B(tài)含量高于未改性活性炭。研究表明,應(yīng)用BCR連續(xù)提取法有助于確定活性炭中重金屬的污染狀況和潛在釋放能力。
[Abstract]:In order to evaluate the stability of heavy metals on activated carbon after adsorption, the forms of heavy metals adsorbed on activated carbon were analyzed by BCR(European Communities Bureau of Reference) continuous extraction method, which can be divided into exchangeable state, reducible state, oxidable state and residue state. The results show that the residual state of Cr (鈪,
本文編號(hào):1960927
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