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Multi‐Response Optimization of Process Parameters for Imidacloprid Removal by Reverse Osmosis Using Taguchi Design
Author(s) -
Genç Nevim,
Doğan Esra Can,
Narcı Ali Oğuzhan,
Bican Emine
Publication year - 2017
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143017x14839994523460
Subject(s) - taguchi methods , reverse osmosis , imidacloprid , permeation , chemistry , membrane , chromatography , analytical chemistry (journal) , materials science , pesticide , composite material , biochemistry , agronomy , biology
In this study, a multi‐response optimization method using Taguchi's robust design approach is proposed for imidacloprid removal by reverse osmosis. Tests were conducted with different membrane type (BW30, LFC‐3, CPA‐3), transmembrane pressure (TMP = 20, 25, 30 bar), volume reduction factor (VRF = 2, 3, 4), and pH (3, 7, 11). Quality and quantity of permeate are optimized with the multi‐response characteristics of the total dissolved solid (TDS), conductivity, imidacloprid, and total organic carbon (TOC) rejection ratios and flux of permeate. The optimized conditions were determined as membrane type of BW30, TMP 30 bar, VRF 3, and pH 11. Under these conditions, TDS, conductivity, imidacloprid, and TOC rejections and permeate flux were 97.50 97.41, 97.80, 98.00% and 30.60 L/m 2· h, respectively. Membrane type was obtained as the most effective factor; its contribution is 64%. The difference between the predicted and observed value of multi‐response signal/noise (MRSN) is within the confidence interval.