Synthesis of porous pig bone char as adsorbent for removal of DBP precursors from surface water
| Autor: | Alongorn Siri, Adisak Siyasukh, Pharkphum Rakruam, Aunnop Wongrueng |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Environmental Engineering
Swine 02 engineering and technology 010501 environmental sciences 01 natural sciences Bone and Bones Water Purification Adsorption 020401 chemical engineering Dissolved organic carbon Animals Freundlich equation 0204 chemical engineering Porosity Humic Substances 0105 earth and related environmental sciences Water Science and Technology Bone char Chemistry Water Disinfection Volume (thermodynamics) Charcoal Mesoporous material Surface water Water Pollutants Chemical Disinfectants Nuclear chemistry |
| Zdroj: | Water Science and Technology. 79:857-865 |
| ISSN: | 1996-9732 0273-1223 |
| Popis: | This research study aims to investigate the efficiency of synthesized porous pig bone char (PBC) for reduction of disinfection by-product (DBP) precursors from surface water. Dissolved organic matter (DOM) is commonly present in natural water and acts as a disinfection by-product precursor. Adsorption is one of the promising technologies that is commonly applied for DOM removal. Interestingly, the properties of pig bone are such that it has a surface area and pore volumes that can adsorb DOM. Pig bone was synthesized as porous bone char (PBC). The results show that synthesized PBC at 900 °C (PBC-900 °C) provides a high volume of mesoporous structure. The adsorption process was best fitted with the pseudo-second-order and Freundlich isotherm model. Thus, the mechanisms occurred on the multilayer adsorption of the surface. PBC-900 °C can remove approximately 70–80% of DOM with varying concentrations, from 0.2 g/L to 0.8 g/L. Furthermore, the results of fluorescence excitation–emission (FEEM) showed that humic acids and humic-like substances in water can be removed by using PBC at concentrations higher than 0.4 g/L. From the obtained results, it can be concluded that PBC is an alternative low-cost adsorbent which can be utilized for reduction of DBP precursors from water. |
| Databáze: | OpenAIRE |
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