Textile wastewater treatment with coagulation and GPC Control

Pekel L. C., ZEYBEK Z., HAPOĞLU H., Alpbaz M.

Chemical Engineering Transactions, cilt.21, ss.817-822, 2010 (Scopus) identifier

  • Yayın Türü: Makale / Özet
  • Cilt numarası: 21
  • Basım Tarihi: 2010
  • Doi Numarası: 10.3303/cet1021137
  • Dergi Adı: Chemical Engineering Transactions
  • Derginin Tarandığı İndeksler: Scopus
  • Sayfa Sayıları: ss.817-822
  • Ankara Üniversitesi Adresli: Evet

Özet

This paper presents an experimental application of Linear Generalized Predictive Control (LGPC) to study the coagulation process of wastewater treatment in a commercial textile dye plant. Firstly, the coagulant (MgCl 2) was added to the textile dye wastewater, thereby depressing the pH and the reaction proceeded before pH was increased to a desired level (variable pH pathway) by the lime-water solution using GPC (Generalized Predictive Control) controller. H2SO4 solution of 10 % was sent to the reactor simultaneously with the manipulated variable (lime-water) to hold the desired set point of pH at 12. Linear (CARIMA) model is utilized in the GPC algorithm. A Pseudo Random Binary Sequence (PRBS) signal was employed to operate the system. The model parameters are evaluated by using Least Squared Regression. Finally, the GPC performance has shown in a reduction of 78 % absorbance value or suspended solids in the treatment of industrial waste. Copyright © 2010, AIDIC Servizi S.r.l.