Treatment of zinc plating wastewater by combination of electrocoagulation and ultrafiltration process

Oztel M. D., Kuleyin A., Akbal F.

WATER SCIENCE AND TECHNOLOGY, cilt.82, sa.4, ss.663-672, 2020 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Derleme
  • Cilt numarası: 82 Sayı: 4
  • Basım Tarihi: 2020
  • Doi Numarası: 10.2166/wst.2020.357
  • Dergi Adı: WATER SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Agricultural & Environmental Science Database, Analytical Abstracts, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chimica, Compendex, EMBASE, Environment Index, Geobase, MEDLINE, Pollution Abstracts, Public Affairs Index, Veterinary Science Database
  • Sayfa Sayıları: ss.663-672
  • Anahtar Kelimeler: electrocoagulation, metal industry, ultrafiltration, wastewater, zinc, HEAVY-METAL IONS, AQUEOUS-SOLUTIONS, HYBRID ELECTROCOAGULATION, CADMIUM REMOVAL, MEMBRANE, POLYELECTROLYTE, WASTEWATERS, ADSORBENTS, RECOVERY
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

In this study treatment of zinc plating wastewater by combination of electrocoagulation (EC) and ultrafiltration (UF) processes was investigated. The effect of operating parameters such as wastewater pH, flow rate and membrane pore size on zinc removal was investigated to optimize the EC-UF process. The results showed that zinc removal was pH dependent and optimum pH was 9.0. The zinc removal over 99% was achieved by the combined EC-UF process with both 50 and 100 kDa membranes at pH 9.0 and current density of 5 mA cm(-2). Suspended solids and oil-grease were also removed completely by the combined EC-UF process. The EC-UF process proved to be a promising technology for the treatment and recycling of zinc plating wastewater.