RESPONSE SURFACE METHODOLOGY FOR OPTIMIZATION OF LANDFILL LEACHATE TREATMENT USING ION EXCHANGE RESINS

2011 ◽  
Vol 10 (3) ◽  
pp. 357-366 ◽  
Author(s):  
Igor Cretescu ◽  
Corneliu Pohontu ◽  
Marius Sebastian Secula ◽  
Matei Macoveanu
Keyword(s):  
Response Surface Methodology ◽  
Ion Exchange ◽  
Response Surface ◽  
Landfill Leachate ◽  
Ion Exchange Resins ◽  
Leachate Treatment ◽  
Exchange Resins

Effects of ion exchange resins in different mobile ion forms on semi-aerobic landfill leachate treatment

2010 ◽  
Vol 61 (3) ◽  
pp. 641-649 ◽  
Author(s):  
Mohammed J. K. Bashir ◽  
Hamidi Abdul Aziz ◽  
Mohd Suffian Yusoff ◽  
A. A. M. Huqe ◽  
Soraya Mohajeri
Keyword(s):  
Ion Exchange ◽  
Landfill Leachate ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
Ion Exchange Resins ◽  
Leachate Treatment ◽  
Cationic Resin ◽  
Exchange Resins ◽  
Sodium Form ◽  
Cationic Exchanger

Landfill leachate is one of the major contamination sources. In this study, the ability of synthetic ion exchange resins which carry different mobile ion for removing color, chemical oxygen demand (COD), and ammonia nitrogen (NH3-N) from stabilized leachate was investigated. The synthetic resin INDION 225 Na as a cationic exchanger and INDION FFIP MB as an anionic exchanger were used in this study. INDION 225 Na was used in hydrogen form (H+) and in sodium form (Na+), while INDION FFIP MB resin was used in hydroxide form (OH−) and in calcium form (Cl−) form. The results indicated better removal of color, COD and NH3-N by using INDION 225 Na in H+ as compared with Na+ form, while no performance differences were observed by using INDION FFIP MB in OH− or Cl− form. Applying cationic resin followed by anionic resin achieved 97, 88 and 94, percent removal of color, COD and NH3-N. The residual amounts were 160 Pt-Co, 290 mg/L and 110 mg/L of color, COD and NH3-N respectively.

A Systematic Review on Fenton Optimization for Leachate Treatment Via Response Surface Methodology from 2005 to 2015

2021 ◽  
Vol 47 (3) ◽  
pp. 409-416
Author(s):  
Larissa Granjeiro Lucena ◽  
Nathália Aquino de Carvalho ◽  
Inalmar Dantas Barbosa Segundo ◽  
Maria Marcella Medeiros Melo ◽  
Arthur Marinho Cahino ◽  
...  
Keyword(s):  
Systematic Review ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Landfill Leachate ◽  
Synergistic Effects ◽  
Molar Ratio ◽  
Fenton Process ◽  
Leachate Treatment ◽  
Variable Content ◽  
Treatment Application

The high polluting potential and variable content of the landfill leachate makes it a significant source of environmental contamination. Advanced oxidation processes (AOPs) such as Fenton process, arises as leachate treatment. Application of response surface methodology (RSM) from previous literatures evaluates the synergistic effects of independent variables to optimize the Fenton process. This paper presents systematic review on articles published from 2005 to 2015 reported on optimum conditions of Fenton treatment landfill leachate treatment using RSM. Papers were selected from different database according to defined inclusion criteria and then, evaluated. The best conditions identified were: pH around 3, [H2O2]/[Fe2+] molar ratio from 2.38 to 24.00, [H2O2]/[CODraw leachate] mass ratio around 1 and reaction time from 30 min to 331.2 min. All models presented R2 > 0.75, indicating a good correlation between the experimental data and the values predicted by the models.

scholarly journals Response Surface Methodology (RSM)-Based Prediction and Optimization of the Fenton Process in Landfill Leachate Decolorization

Processes ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 2284
Author(s):  
Anita Maslahati Roudi ◽  
Sultan Salem ◽  
Amin Maslahati ◽  
Muhammad Imran
Keyword(s):  
Response Surface Methodology ◽  
Reaction Time ◽  
Response Surface ◽  
Landfill Leachate ◽  
Color Removal ◽  
Ion Concentration ◽  
Treatment Technique ◽  
Fenton Process ◽  
Variable Response ◽  
Leachate Treatment

As an advanced oxidative processes, the Fenton process is receiving popularity as a wastewater treatment technique that can be used for hazardous landfill leachate. The treatment is simple, yet involves complex interactions between the affecting parameters including reaction time, H2O2/Fe2+ ratio, pH, and iron (II) ion concentration. Hence, the purpose of this present study was to analyze the factors affecting landfill leachate treatment as well as their interaction by means of response surface methodology (RSM) with central composite design. The independent variables were reaction time, H2O2/Fe2+ ratio, iron (II) ion concentration, and pH, and the dependent variable (response) was color-removal percentage. The optimum treatment conditions for pH, H2O2/Fe2+ ratio, Fe2+ concentration, and reaction time were 8.36, 3.32, 964.95 mg/L, and 50.15 min, respectively. The model predicted 100% color removal in optimum conditions, which was close to that obtained from the experiment (97.68%). In conclusion, the optimized Fenton process using the RSM approach promotes efficient landfill leachate treatment that is even higher than that already reported.

Evaluation of ion exchange resins for removal and recuperation of ammonium–nitrogen generated by the evaporation of landfill leachate

2015 ◽  
Vol 72 (12) ◽  
pp. 3119-3134 ◽  
Author(s):  
Claudio Nogueira Vignoli ◽  
Jackeline M. C. F. Bahé ◽  
Mônica R. C. Marques
Keyword(s):  
Ion Exchange ◽  
Landfill Leachate ◽  
Ammonium Nitrogen ◽  
Ion Exchange Resins ◽  
Exchange Resins
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