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All Journal Reaktor Journal of Engineering and Technological Sciences WIDYA LAKSANA Jurnal Teknik

Putu Teta Prihartini Aryanti

Chemical Engineering Dept., Faculty of Engineering, Universitas Jenderal Achmad Yani Jl. Terusan Jenderal Sudirman, Cibeber – Cimahi Telp./Fax.: (022)6642064

Author-ID : 2955318

Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Fouling Analysis on Polysulfone/Peg400/ZnO Membrane during Textile Wastewater Treatment Putu Teta Prihartini Aryanti; Febrianto Adi Nugroho; Gatra Buana Winiarti; Ghina Shofi Pratiwi; I Nyoman Widiasa
Reaktor Volume 21 No.4 December 2021
Publisher : Dept. of Chemical Engineering, Diponegoro University

Fouling has become the main problem in long-term application of ultrafiltration (UF) membrane for water and wastewater treatment, significantly reducing membrane productivity. In this paper, fouling on polysulfone-based membrane was analyzed using Hermia’s model during textile wastewater treatment. The UF membrane has been prepared by blending polysulfone (PSf), acetone, and PEG400 in DMAc, with ZnO nanoparticles at a concentration of 1% by weight of polymers (PSf and PEG400). The influence of polysulfone concentration (18 and 20 wt.%) and PEG400 (0 - 25 wt.%) on fouling mechanisms was investigated. It was found that the increase of polysulfone from 18 to 20 wt.% reduced permeate flux from 54 to 25 L.m-2.h-1. Vise versa, the increase of PEG400 concentration enhanced the permeate flux. More stable flux was achieved when 18 wt.% of polysulfone was used to prepare the UF membrane. The fouling type in the UF membrane depends on the characteristics of the membrane. A significant flux decline occurred when used 20 wt.% of polysulfone without the addition of PEG400. Smaller membrane pore and higher hydrophobicity due to high polysulfone concentration induced cake layer of fouling on the membrane surface at the first 40 minutes of ultrafiltration. Further increase of operating time, internal fouling was formed due to the movement of pollutants to the permeate side caused by different concentrations. The highest color rejection (86%) was achieved when 25 wt.% of PEG400 was added in 20 wt.% of polysulfone solution.Keywords: fouling, hermia model, ultrafiltration, wastewater treatment.

Integrated Electrocoagulation and Tight Ultrafiltration Membrane for Wastewater Reclamation and Reuse F.A. Nugroho; Putu Teta Prihartini Aryanti; B. Irawan; M.F. Kurnia; T. Prasetyo
Reaktor Volume 18 No. 4 December 2018
Publisher : Dept. of Chemical Engineering, Diponegoro University

Wastewater reclamation and reuse have become an alternative to saving operational costs while reducing the impact of waste pollution. In this paper, integration of electrocoagulation (EC) and polysulfone-based ultrafiltration (UF-PSf) membranes were used for the mentioned purpose. The EC unit equipped with 7 (seven) pieces of E-shaped of Al electrodes, which operated at a current of 3 (three) Amperes and a residence time of 2 (two) hours. The waste samples obtained from textile and oil palm industries. The experimental results were compared based on product quality and economic feasibility. When used for textile waste treatment, the integrated EC-UF units reduced TDS, TSS, BOD, and COD by 77%, 95%, 70 -80%, and 60-70%, respectively. While in palm oil waste treatment, the TDS and TSS reduced by 92% and 98%. The electrode loss rate in palm oil waste treatment was 2 (two) times greater than textile waste. By assuming that the waste production capacity of both industries was 400 m3/day, the water production cost in textile waste treatment was Rp. 4,000/m3. While in the palm oil waste treatment, the water production cost was Rp. 6,000/m3. These results showed that the EC-UF unit could be used as an economical and environmentally friendly alternative process for reclamation of industrial wastewater that meets the clean water quality standards.Keywords: electrocoagulation, industrial wastewater, ultrafiltration, reclamation, reuse water

Co-Authors Adhani Nur Fajrina5 Annisa Rakhmawati Darlis B. Irawan Danu Ariono F.A. Nugroho Fahmi Widjaya Febrianto Adi Nugroho Gatra Buana Winiarti Ghina Shofi Pratiwi I Gede Wenten I Nyoman Widiasa M.F. Kurnia Nugroho, Febrianto Adi Susilowati Susilowati T. Prasetyo Tania Finarianingrum Wardani, Anita Kusuma

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