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A cost effective and environmentally friendly stormwater treatment method: The use of wood fly ash and H2O2
Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för naturvetenskap, NV.
2011 (Engelska)Självständigt arbete på avancerad nivå (magisterexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
Abstract [en]

This current study is a lab-scale investigation focused on the treatment of stormwater runoff generated in wood-storage areas. The main target constituents of the proposed treatment were: metals (Cu, Cd, Co, V, Pb, Zn, Ni, Cr, Fe, As), COD, TOC, Phenols, and color. The method implemented for this project follows the main concept of using low-cost and environmentally friendly technologies and had as main steps the use of a by-product of wood-based industries - wood fly ashes as sorbents - followed by oxidation with H2O2 (Hydrogen Peroxide). The results obtained during this investigation were vey promising since satisfactory removal % was achieved. Removal rates of 98.5%, 86%, 89.6%, 79.6% were achieved for color, chemical oxygen demand (COD), total organic carbon (TOC) and phenols respectively. Furthermore a decrease in metals concentrations was also observed with the exception of chromium. The study showed that for 300 ml storm water, optimum conditions were with 7g wood fly ash, 5 hours time reaction, pH≈11.46 and 150 μl of a 30% H2O2 solution in a room temperature. To conclude it can be stated that the use of a by-product from wood industry to treat contaminated water from the same sector, following the concept of a closed-loop system, is promising and possible. However further studies need to be conducted in order to evaluate such system in scaled-up conditions.

Ort, förlag, år, upplaga, sidor
2011. , s. 30
Nyckelord [en]
wood fly ash, storm water, hydrogen peroxide, water treatment
Nationell ämneskategori
Miljövetenskap
Identifikatorer
URN: urn:nbn:se:lnu:diva-12204OAI: oai:DiVA.org:lnu-12204DiVA, id: diva2:421262
Ämne / kurs
Miljövetenskap
Uppsök
bio-/geovetenskap
Handledare
Examinatorer
Tillgänglig från: 2011-06-08 Skapad: 2011-06-08 Senast uppdaterad: 2011-06-08Bibliografiskt granskad

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Aboubi, Fadoua
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Institutionen för naturvetenskap, NV
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