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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/wer.1672
|2 doi
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|a pubmed24n1113.xml
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|a (DE-627)NLM333971981
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|a (NLM)34860438
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Zakaria, Siti Nor Farhana
|e verfasserin
|4 aut
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|a Effectiveness of ozonation with zirconium and tin tetrachloride for stabilized anaerobic landfill leachate treatment
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 19.01.2022
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|a Date Revised 19.01.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a © 2021 Water Environment Federation.
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|a Landfill leachate can threaten the environment and human life. Therefore, this study aims to investigate the efficiency of ozone (O3 ), O3 with zirconium tetrachloride (O3 /ZrCl4 ), and O3 with tin tetrachloride (O3 /SnCl4 ) in remediating the stabilized anaerobic landfill leachate (SAL) from Alor Pongsu, Perak. Hydroxyl radical (OH•) is an important oxidizing agent in the ozonation process. Its presence was tested using tert-butyl alcohol. Results showed that using ZrCl4 and SnCl4 in ozonation boosted the generation of hydroxyl radical, thereby enhancing the oxidation process and pollutant removal inside the sample. The O3 /ZrCl4 mix at chemical oxygen demand (COD) to ZrCl4 ratio of 1:1.5, pH 8-9, and 90-min reaction time resulted in the highest reduction rates of COD and color at 91.9% and 99.6%, respectively. All results demonstrated that the optimum performance occurred at alkaline conditions (pH > 8), proving that OH radicals primarily oxidized the pollutants through an indirect reaction pathway. The biodegradability (biochemical oxygen demand/COD) ratio was also considerably improved from 0.02 (raw) to 0.37 using O3 /ZrCl4 , compared with using O3 alone and using O3 /SnCl4 , which only recorded 0.23 and 0.28, respectively, after the treatment. The study demonstrated that O3 /ZrCl4 was the most efficient combination. PRACTITIONER POINTS: The O3 /ZrCl4 recorded the highest COD and color removals. The O3 /ZrCl4 combination also recorded higher OH• concentrations. The biodegradability of leachate (BOD5 /COD ratio) improved from 0.02 to 0.37
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|a Journal Article
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|a leachate
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|a ozone
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|a solid waste
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|a tetrachloride
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|a zirconium tetrachloride
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|a Tin Compounds
|2 NLM
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| 650 |
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|a Water Pollutants, Chemical
|2 NLM
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| 650 |
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|a Ozone
|2 NLM
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| 650 |
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7 |
|a 66H7ZZK23N
|2 NLM
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| 650 |
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|a stannic chloride
|2 NLM
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| 650 |
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|a 67H76LFL3V
|2 NLM
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| 650 |
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|a Zirconium
|2 NLM
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| 650 |
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|a C6V6S92N3C
|2 NLM
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| 700 |
1 |
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|a Aziz, Hamidi Abdul
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Alazaiza, Motasem Y D
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 94(2022), 1 vom: 03. Jan., Seite e1672
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
8 |
|g volume:94
|g year:2022
|g number:1
|g day:03
|g month:01
|g pages:e1672
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| 856 |
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|u http://dx.doi.org/10.1002/wer.1672
|3 Volltext
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