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.

Isotherm, kinetics, and thermodynamics modelling for the removal of chemical oxygen demand, colour, and NH3-N from coffee processing wastewater by ion exchange resins

2021 ◽  
Vol 237 ◽  
pp. 77-87
Author(s):  
Ijanu Emmanuel Madu ◽  
Mohamad Anuar Kamaruddin ◽  
Mohd Suffian Mohd Yusof ◽  
Noorzalila Muhammad Niza ◽  
Abdubaki Mohamed Hussen Shadi ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Chemical Oxygen Demand ◽  
Oxygen Demand ◽  
Ion Exchange Resins ◽  
Kinetics And Thermodynamics ◽  
Exchange Resins

scholarly journals The comparison of efficiency of Fenton and photo-Fenton treatment of stabilised landfill leachate / Porównanie efektywności oczyszczania odcieków z ustabilizowanego składowiska odpadów komunalnych w procesie Fentona i foto-Fentona

2015 ◽  
Vol 26 (3) ◽  
pp. 49-53 ◽  
Author(s):  
Anna Kwarciak-Kozłowska ◽  
Aleksandra Krzywicka
Keyword(s):  
Landfill Leachate ◽  
Fenton Reaction ◽  
Ferrous Sulphate ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
Ammonia Removal ◽  
Mass Ratio ◽  
Leachate Treatment ◽  
Initial Ph ◽  
Removal Efficiencies

Abstract The goal of this article was to compare the efficiency of Fenton and photo-Fenton reaction used for stabilised landfill leachate treatment. The mass ratio of COD:H2O2 was fixed to 1:2 for every stages. The dose of reagents (ferrous sulphate/hydrogen peroxide) was different and ranged from 0.1 to 0.5. To determine the efficiency of treatment, the BOD (biochemical oxygen demand COD (chemical oxygen demand), TOC (total organic carbon) , ammonia nitrogen and BOD/COD ratio was measured. The experiment was carried out under the following conditions: temperature was 25ºC, the initial pH was adjusted to 3.0. Every processes were lasting 60 minutes. The most appropriate dose of reagents was 0.25 (Fe2+/H2O2). It was found that the application of UV contributed to increase of COD, TOC and ammonia removal efficiencies by an average of 14%.

Comparison of Different Ion-Exchangers’ Performances for Removal of Cadmium(ll) from Aqueous Solution

2012 ◽  
Vol 550-553 ◽  
pp. 2205-2209
Author(s):  
Chun Bo Liang ◽  
Ming Yu Li ◽  
Qing Xuan Zeng
Keyword(s):  
Aqueous Solution ◽  
Ion Exchange ◽  
Ph Value ◽  
Ion Exchange Resins ◽  
Carboxylate Groups ◽  
Cation Exchangers ◽  
Value Range ◽  
Exchange Resins ◽  
Ion Exchange Fiber ◽  
Cationic Exchanger

In this paper, comparison of the ion-exchange characteristics of removal cadmium (Ⅱ) ions from aqueous solution was investigated. In the experiments, three strong cation-exchangers, 732 resin, K-1 fiber and ZB-1 fiber with sulfonate groups, weak cationic exchanger 724 resin with carboxylate groups and X-1 chelating fiber with diethylamino functional groups as well as the AK-22 amphoteric fiber with amino and carboxylate groups were used. In the pH value range from 2.0 to 7.0, all the candidate materials had the maximal removal Cd (Ⅱ) up to 98% except AK-22 (only 65%). The loading and eluting kinetics results showed that the exchange rate of ion-exchange fibers (especially ZB-1) were higher than ion-exchange resins. Therefore, it was found that ZB-1 ion-exchange fiber was the most effective for removal and elution of Cd (Ⅱ) and had the potential application for the purification of waters polluted by Cd (Ⅱ).

Landfill leachate treatment using the sequencing batch biofilm reactor method integrated with the electro-Fenton process

2014 ◽  
Vol 68 (6) ◽  
Author(s):  
Dao-Bin Zhang ◽  
Xiao-Gang Wu ◽  
Yi-Si Wang ◽  
Hui Zhang
Keyword(s):  
Landfill Leachate ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
Biological Oxygen Demand ◽  
Biofilm Reactor ◽  
Electrolysis Time ◽  
Fenton Process ◽  
Optimal Conditions ◽  
Leachate Treatment ◽  
Sequencing Batch Biofilm Reactor

AbstractA study was conducted on the treatment of landfill leachate by combining the sequencing batch biofilm reactor (SBBR) method with the electro-Fenton method. The reduction of chemical oxygen demand (COD), biological oxygen demand (BOD5), and ammonia nitrogen (NH4+-N) from the leachate by the SBBR method was investigated. For the electro-Fenton experiment, the changes in COD and total organic carbon (TOC) with the increase in H2O2 dosage and electrolysis time under optimal conditions were also analysed. The results showed that the average efficiencies of reduction of COD, BOD5, and NH4+ -N achieved using the SBBR method were 21.6 %, 54.7 %, and 56.1 %, respectively. The bio-effluent was degraded by the subsequent electro-Fenton process, which was rapid over the first 30 min then subsequently slowed. After 60 min of the electro-Fenton treatment, the efficiencies of reduction of TOC, COD, and BOD5 were 40.5 %, 71.6 %, and 61.0 %, respectively. There is a good correlation between the absorbance of leachate at 254 nm (UV254) and COD or TOC during the electro-Fenton treatment.

scholarly journals The availability of mineral nitrogen in Mediterranean open steppe dominated by Stipa tenacissima L.

2011 ◽  
Vol 59 (5) ◽  
pp. 187-192 ◽  
Author(s):  
Irena Novosádová ◽  
Jaroslav Záhora ◽  
José Damian Ruiz-Sinoga
Keyword(s):  
Ion Exchange ◽  
Soil Profile ◽  
Great Influence ◽  
Soil Microbial Communities ◽  
Ammonia Nitrogen ◽  
Mineral Nitrogen ◽  
Ion Exchange Resins ◽  
Area Of Interest ◽  
Exchange Resins ◽  
Semi Arid

The area of interest is located in the Sierra de los Filabres in semi-arid steppe of the province of Almeria in Spain. The amount of water in the soil is a limiting factor and its availability affects the structure and species composition of ecosystem. On the other hand, the type of vegetation affects the water loss via evapotranspiration and thus the soil microclimate. It has a great influence on the growth and activity of soil microbial communities and hence the dynamics of decomposition of organic matter and nutrient availability. The aim of this study was to assess the intensity of microbial transformations of soil organic nitrogen and describe changes in the content of nitrogen mineral forms at different depths in the semi-arid climate soil in the Mediterranean region. Availability and movement of nitrogen was monitored by capturing the mineral nitrogen into the structures of ion exchange resin applied to the soil in three different variants (control variant, a variant with the addition of cellulose, and the variant with the addition of raw silk). Ion exchange resins have been installed into soil profile in 2008, 2009, and 2010. After the in situ exposure the ion exchange resins were removed from the soil profile and the quantity of captured mineral N was determined by distillation titration method. The availability of ammonia-nitrogen was significantly affected by the addition of different substrates mainly by the additions of the raw silk, where the availability was regularly the highest. However, the availability of ammonia-nitrogen form was generally higher than the availability of nitrate form.

scholarly journals POTENCIALIDADE DE USO DA RESINA AMBERLITE IR 120 NO TRATAMENTO DE RESÍDUOS QUÍMICOS CONTENDO ESPÉCIES IÔNICAS COM CR2O72-, FE3+ E MNO4-

2014 ◽  
Vol 39 (1) ◽  
pp. 12
Author(s):  
Fernanda Da Silva Nogueira ◽  
Aparecida Maria Simões Mimura ◽  
Júlio César José Da Silva ◽  
Rafael Arromba de Sousa
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
Ion Exchange Resins ◽  
Chemistry Department ◽  
Experimental Conditions ◽  
Cationic Resin ◽  
Exchange Resins ◽  
Potential Use ◽  
Acid Waste

Ion exchange resins have been widely used as an option for wastewater treatments and are effective in reducing the concentration of residual metals. In this context, the aim of this study was to evaluate the potential use of an ion exchange resin for the treatment of an acid waste regularly produced at the Chemistry Department in the Federal University of Juiz de Fora. Employing optimized experimental conditions the studied method allowed to remove, significantly the Fe3+, Cr2O72- and MnO4- content, using only the cationic resin, AMBERLITE IR 120®. In addition, desorption of these species was also studied, in which the metals content could be concentrated into a volume 70% smaller than the ordinary waste volume. Besides, after that desorption the resin can be reused and the method showed to be adequate for routine uses.

scholarly journals Molecular weight distribution of pollutants in leachate from full scale landfill site

2016 ◽  
Vol 18 (2) ◽  
pp. 360-370
Keyword(s):  
Molecular Weight ◽  
Molecular Weight Distribution ◽  
Landfill Leachate ◽  
Weight Distribution ◽  
Oxygen Demand ◽  
Ammonia Nitrogen ◽  
Treatment Technology ◽  
Leachate Treatment ◽  
Treatment Processes ◽  
Appropriate Treatment

<div> <p>The main objective of this study was to investigate the differences between the main pollutants in young and intermediate age landfill leachate in terms of molecular weight distribution (MWD). Parameters of chemical oxygen demand (COD), five day - biochemical oxygen demand (BOD<sub>5</sub>), ultraviolet-visible spectrophotometry (UV-VIS spectrum), total kjehldahl nitrogen (TKN), ammonia nitrogen (NH<sub>4</sub>-N) and colour were fractioned by membranes with the nominal pore size of 1&micro;m, 0.05 &micro;m, 100 kDa, 50 kDa, 10 kDa, 1 kDa and 0.5 kDa. According to the MWD results appropriate treatment technology could be choosen easily. According to the MWD results the ratio of soluble fractions (&lt; 0.5 kDa) to total COD was 34% in young leachate (YL), whereas low molecular weight (MW) fractions were dominant in intermediate leachate (IL) having this ratio of 71%. Presence of lower MW compounds in IL was also confirmed with UV-VIS absorbance spectra and its spectrum was higher than the YL. According to the specific ultraviolet absorption (SUVA) values, the organic contents of all of these processes were hydrophilic. TKN and NH<sub>4</sub>-N analysis showed that in IL all the nitrogen present is in ammoniacal form, instead in YL there is still the presence of organic nitrogen. Furthermore more than half of the TKN was less than 0.5 kDa while 6 % and 16 % TKN found in wastewater from IL and YL was higher than 1 &micro;m respectively. The observations of this study may provide useful criteria to choose a suitable landfill leachate treatment processes.</p> </div> <p>&nbsp;</p>

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