Impact of removal of natural organic matter from surface water by ion exchange: A case study of pilots in Belgium, United Kingdom and the Netherlands

Caltran, I.; Heijman, S.G.J.; Shorney-Darby, Holly; Rietveld, L.C.

doi:10.1016/j.seppur.2020.116974

Cited by 26 publications

(11 citation statements)

References 41 publications

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“…Interestingly, AIX resins had a higher capacity for UV-absorbing constituents than for the total DOC, as can be seen from the breakthrough curves shown in Figure c. This preferential uptake of the UV light-absorbing fractions was observed before for other AIX materials and can be explained by a higher affinity of AIX for the aromatic fractions of the DOC compared to other fractions …”

Section: Resultssupporting

confidence: 75%

The Price of Really Clean Water: Combining Nanofiltration with Granular Activated Carbon and Anion Exchange Resins for the Removal of Per- And Polyfluoralkyl Substances (PFASs) in Drinking Water Production

Franke

Ullberg

McCleaf³

et al. 2021

ACS EST Water

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The removal of per-and polyfluoroalkyl substances (PFASs) presents a challenge for drinking water providers. Guidelines for PFAS concentrations in final drinking water are regularly updated to ever-decreasing values, and conventional drinking water treatment plants are not designed to remove PFASs. Currently, the most frequently used removal technique, adsorption to granular activated carbon (GAC), is often considered challenging. High-pressure membranes, such as nanofiltration (NF), have been shown to remove PFASs efficiently. However, the creation of a waste stream comprised of at least 10% of the feedwater volume is recognized as a major drawback of this technique. In this study, a NF pilot plant was operated at a drinking water treatment plant in the city of Uppsala, Sweden, for six months. NF removed up to >98% of PFASs and fulfilled other water quality targets, such as the removal of uranium-238, dissolved organic carbon (DOC), and mineral hardness from the raw water. The concentrate from the pilot plant was treated with two different GAC materials and two different anion exchange (AIX) resins in column tests, where the superior performance of AIX over GAC was observed in terms of PFAS removal. PFAS adsorption curves for GAC were found to superimpose each other for the two water types if normalized to the specific throughput of DOC. The application of the freely available PHREEQC model revealed improvement possibilities in terms of resin properties. A cost analysis using the column test results compared GAC filtration to the combination of NF with adsorption materials. Treatment costs were found to be largely dependent on the PFAS drinking water treatment goals and concentrate discharge requirements, which highlight the economic consequences of prevailing guidelines for drinking water and discharge to the environment. The results of this study provide both the scientific community as well as drinking water providers with important insights into the application of NF for PFAS removal during drinking water treatment as well as that mechanistic and economic aspects of NF treatment and the management of the resulting concentrate.

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Section: Resultssupporting

confidence: 75%

The Price of Really Clean Water: Combining Nanofiltration with Granular Activated Carbon and Anion Exchange Resins for the Removal of Per- And Polyfluoralkyl Substances (PFASs) in Drinking Water Production

Franke

Ullberg

McCleaf³

et al. 2021

ACS EST Water

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“…Such decreases in SUVA in GRW indicate that the DOC composition of GRW is considerably altered, that is, more hydrophilic, following treatment with the two selected anion-exchange resins. Preferential removal of aromatic fractions of DOC by IX resins has been observed by other previous studies as well. , …”

Section: Results and Discussionsupporting

confidence: 82%

“…Preferential removal of aromatic fractions of DOC by IX resins has been observed by other previous studies as well. 16 , 40 …”

Section: Results and Discussionmentioning

confidence: 99%

Ion-Exchange Treatment of Perfluorinated Carboxylic Acids in Water: Comparison of Polystyrenic and Polyacrylic Resin Structures and Impact of Sulfate on Their Performance

et al. 2022

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The removal of three perfluorinated carboxylic acids (PFCAs)PFHpA, PFOA, and PFNAin ultrapure and river water was evaluated using two anion-exchange resinspreviously unreported macroporous polystyrenic A-500P and a more widely studied macroporous polyacrylic A-860. Both resins had similar properties, allowing direct comparison of PFCA removal performance between the two resin structures/matrices. This study also presents a new gas chromatography−mass spectrometry (GC/MS) method developed for PFCA analysis in water. In ultrapure water, A-500P exhibited higher removal capacity and faster removal compared to A-860, suggesting greater effectiveness of the polystyrenic structure compared to the polyacrylic structure. In the Grand River water, the target PFCAs were well removed by A-500P but not A-860. However, both resins achieved similarly high overall reductions of dissolved organic carbon (∼75%), suggesting, later confirmed in ultrapure water experiments, that inorganic anions (sulfate particularly) were the dominant competitors for the A-860 resin. The uncharged styrenic and acrylic beads (base materials) of the two tested resins were unable to remove PFOA, implying that the dominant removal mechanism involves charge interactions between the negatively charged PFCA and the positively charged anion-exchange functional groups.

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“…Dalam limbah tahu dan limbah batik dengan dosis dan perlakuan yang sama, persentase penyisihan UV254 menggunakan RIP-TiO2 dalam limbah tahu menunjukkan hasil yang lebih besar, hal ini dikarenakan konsentrasi awal UV254 ada limbah tahu diketahui lebih kecil dari limbah batik. Dalam Gambar 3 dapat diketahui bahawa persentase penyisihan UV254 tidak terlalu tinggi, hanya 54,50% -60,50%, selain dipengaruhi oleh perbedaan berat molekul air limbah dan hole RIP, persentase penyisihan juga dipengaruhi oleh senyawa aromatik itu sendiri, yaitu ion dalam air limbah yang bersaing menempati hole sehingga dapat mengurangi efisiensi penyisihan senyawa aromatik, hal ini sesuai yang disebutkan Caltran et al, 2020 Waktu Sampling (Jam)…”

Section: Kinerja Resin Immobilized Photocatalyst Dalam Menurunkan Kon...unclassified

Analisis Kinerja Resin Immobilized Photocatalyst dalam Meningkatkan Kualitas Efluen Limbah Cair

Asrori

Hidayah

Wibisana³

2022

envirotek

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Limbah cair merupakan sisa hasil buangan sisa produksi atau aktivitas domestik yang berupa cairan. Limbah cair dapat berupa air beserta bahanbahan buangan lainnya yang tercampur (tersuspensi) maupun larut didalam air. Tujuan dari penelitian ini adalah untuk memberikan informasi tentang perbandingan efektivitas resin immobilized foto katalis TiO2 dan ZnO dalam proses degradasi fotokatalitik senyawa toksik yang terdegradasi (%). Kabupaten Sidoarjo merupakan kabupaten dikenal sebagai kota delta, karena diapit oleh dua sungai yaitu sungai Surabaya dan sungai porong. Penelitian ini dilakukan di pabrik tahu Muncul, Surabaya dan industri batik rumahan di Kecamatan Tanjung Bumi, Bangkalan, Madura. Metode yang digunakan dalam penelitian ini adalah metode refluks untuk parameter uji COD, metode spektrofotometer UVVis untuk parameter uji UV254 dan metode Atomic Absorption Spectroscopy untuk uji parameter Crom (Cr). Hasil penelitian pengaruh variasi RIPZnO adalah 1; 2; 3. Berdasarkan hasil penelitian limbah batik dan limbah tahu memiliki variasi yang lebih tinggi yaitu mencapai 75,56% untuk dosis 15 gram pada 15 jam, sedangkan limbah batik dan limbah tahu pada dosis 15 gram ke 15 jam dengan hasil 77,89%. Sedangkan pengaruh variasi terhadap penurunan konsentrasi UV254 untuk limbah batik memiliki variasi control 7,65% pada dosis 15 gram ke jam 15 dan limbah tahu dengan hasil 73,06% pada dosis 15 gram ke 15 jam. Pada penurunan konsentrasi krom (Cr), variasi control menghasilkan penurunan 73,06% pada dosis 15 gram ke jam 15 untuk limbah batik. Penyisihan tinggi COD dan UV254 didapatkan pada limbah batik dan limbah tahu memiliki nilai terendah.

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Impact of removal of natural organic matter from surface water by ion exchange: A case study of pilots in Belgium, United Kingdom and the Netherlands

Cited by 26 publications

References 41 publications

The Price of Really Clean Water: Combining Nanofiltration with Granular Activated Carbon and Anion Exchange Resins for the Removal of Per- And Polyfluoralkyl Substances (PFASs) in Drinking Water Production

The Price of Really Clean Water: Combining Nanofiltration with Granular Activated Carbon and Anion Exchange Resins for the Removal of Per- And Polyfluoralkyl Substances (PFASs) in Drinking Water Production

Ion-Exchange Treatment of Perfluorinated Carboxylic Acids in Water: Comparison of Polystyrenic and Polyacrylic Resin Structures and Impact of Sulfate on Their Performance

Analisis Kinerja Resin Immobilized Photocatalyst dalam Meningkatkan Kualitas Efluen Limbah Cair

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