Removal of beryllium (Be2+) from water samples by sorption process: a review
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Дата
2021
Автори
Науковий керівник
Назва журналу
Номер ISSN
Назва тому
Видавець
КПІ ім. Ігоря Сікорського; ТОВ «Українська водна спілка»
Анотація
Beryllium (Be2+) is an important industrial metal because of its unusual material properties: it is
lighter than aluminium and six times stronger than steel. Beryllium is a strategic metal due to its
low density combined with its strength, low neutron absorption, high melting point and high
modulus of elasticity. Beryllium is often alloyed with other metals such as copper and is an
important component of materials used in the aerospace, automotive, energy, defense, medical, and
electronics industries. However, beryllium and its compounds are very toxic, especially to the
lungs, skin, and eyes. Beryllium compounds are known carcinogens based on sufficient evidence of
carcinogenicity in humans from human studies. Toxic effects of beryllium include immunotoxic,
allergic, mutagenic, and carcinogenic effects. Mammalian tissues do not excrete it, so the effects
are cumulative and can lead to death at high concentrations. Therefore, removal of Be2+ is
important. In this review, the removal of Be2+ from water samples by sorption processes using
different sorbents was summarized. The effects of process parameters on the removal of Be2+ have
been summarized. The work discussed showed that ion exchange resins, various modified
biosorbents metal oxides can be used for the removal of Be2+. The results showed that the pH of the
solution has an important effect on the removal rate. Sorption kinetics vary from 3 minutes to 48h.
When the functional groups are on the surface of the sorbent, the sorption process is rapid.
However, if the surface of the sorbent is covered with oxides such as magnetite, it takes longer to
reach equilibrium. Published work shows that more than 99 % of Be2+ can be removed from
solution.
Опис
Ключові слова
adsorption, beryllium, toxicity, biosorbent, ion exchanger, water treatment, адсорбція, берилій, біосорбент, іонообмінник, водопідготовка
Бібліографічний опис
Arar, Ö. Removal of beryllium (Be2+) from water samples by sorption process: a review / Ö. Arar // Вода і водоочисні технології. Науково-технічні вісті. – 2021. – № 3(31). – С. 3-11.