Seramik membran membran kaplama endüstriyel atıksu metal giderimi bakır geri kazanımı
TÜBİTAK
114Y585
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In this study, active surface of
ceramic membrane was modified with silica layer and amino groups in order to improve
the treatability of industrial wastewater with heavy metal content. As the
separation capabilities of the developed membrane increased, it became more
selective for metal ions in industrial wastewaters. The modified membrane is
characterized by SEM-EDX, membrane surface charge, and XRF measurements. The
affinities and rejection capacities of heavy metals in industrial wastewater on
the coated ceramic membrane were investigated at constant concentration and
pressure (6.5 mg / L, 2 bar) with single, triple and 5-mixture model solutions.
Then, 2 different regeneration methods were applied to the coated ceramic
membrane. To determine the regeneration capacity of coated ceramic membrane
with optimum regeneration method; 3 different pressures (1,2 and 4 bar) and 3
different concentrations (6,5, 64 and 128 mg / L) of copper containing model
solution and industrial wastewater were tested and compared with the clean
water flux after regeneration. In single experiments the removal order was
obtained as Cu2+>Pb2+>Ni2+>Zn2+>Fe2+.
In triple tests removal order of Pb2+>Ni2+>Cu2+
and Zn2+>Cu2+>Fe2+ was obtained. In the
removal test where all metals are combined, the result was obtained as Pb2+>Ni2+>Zn2+>Cu2+>Fe2+
which is similar to the results of the studies in the literature. As a result
of the tests performed, coated ceramic membranes were able to recover their
initial performance after regeneration. ICP-MS analysis of the samples taken
from the regeneration stream after coated membrane experiments 26,84-33,73 mg/L
copper was found. By the multi-channel ceramic membrane tests which will be
conducted in future studies, it is expected that the coating will strengthen
the adsorption process by covering a larger surface area on ceramic membranes
and reduce the process costs with obtained higher fluxes.
Ceramic membrane membrane coating industrial wastewater metal removal copper recovery
114Y585
Birincil Dil | Türkçe |
---|---|
Konular | Mühendislik |
Bölüm | Araştırma Makalesi |
Yazarlar | |
Proje Numarası | 114Y585 |
Yayımlanma Tarihi | 15 Mayıs 2020 |
Yayımlandığı Sayı | Yıl 2020 Cilt: 22 Sayı: 65 |
Dokuz Eylül Üniversitesi, Mühendislik Fakültesi Dekanlığı Tınaztepe Yerleşkesi, Adatepe Mah. Doğuş Cad. No: 207-I / 35390 Buca-İZMİR.