FUW TRENDS IN SCIENCE & TECHNOLOGY JOURNAL
(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170
keywords: Characterization, dissolved organic matter, FTIR, GC-MS, wetlands
The molecular composition of dissolved organic matter (DOM), collected from Baturiya, Nguru, Matara-Uku, Jebba and Lokoja wetlands of the Northern Nigeria were characterized using Fourier Transform Infra–Red (FTIR) and Gas Chromatography-Mass Spectrometry (GC-MS). FTIR results indicated that the DOM of these wetlands contain the phenolic hydroxyl groups, hydroxyl group, conjugated double bond of aromatic family (C=C), amino, amide and free carboxyl groups. The major components identified in all DOM samples analyzed using GC-MS were phenol, 2,4-Bis(1,1-dimethylethyl)phenol, 1-Methyl-4-propan-2-ylbenzene, methyl esters, 2-Myristynoyl pantetheine, 2,2,4-Trimethyl-3-carboxyisopropyl, isobutyl ester, 1,1-Bis(dodecyloxy) hexadecane, Stearic acid hydrizide, 3-Trifluoroacetoxytetradecane, Rhodopin, 2-hydroxy-2-octylsebacic acid, alkenes, alcohols, amines and cyclocompounds. The large carbonyl, phenyl hydroxyl and amine functional groups could explain that DOM from these wetlands might have a strong reactive potential with inorganic and organic pollutants. Phenol hydroxyl groups, conjugated double bonds, amino and carboxylic groups have been implicated for the formation of disinfection by-products like trihalomethane and trihaloacetic acids which are carcinogenic.
Aluwihare LI & Repeta DJA 1999. Comparison of the chemical characteristics of oceanic DOM and extracellular DOM produced by marine algae Mar. Ecol.: Prog. Ser., 186: 105–117. Angzhen L, Xu Z, Ran M, Huijuan L & Jiuhui Q 2014. Characterization of dissolved organic matter from surface waters with low to high dissolved organic carbon and the related disinfection byproduct formation potential. J. Hazardous Materials, 271: 228–235. Benke, MB, Mermut, AR & Chatson B 1998. Carbon-13 CP/MAS NMR and DR-FTIR spectroscopic studies of sugar-cane distillery waste. Can. J. Soil Sci., 78, 227-236. Capriel P 1997. Hydrophobicity of organic matter in arable soils: influence of management. Eur. J. Soil Sci., 48: 457-462. Gibert O, Lefevre B, Fernandez M, Bernat X, Paraira M & Pons M 2013. Fractionation and removal of dissolved organic carbon in a full-scale granular activated carbon filter used for drinking water production. Water Res., 47: 2812–2829. Hedges JI 2002. Biogeochemistry of Marine Dissolved Organic Matter, ed. D. A. Hansell and C. A. Carlson, Academic Press, San Diego, pp. 1–33. Hinedi ZR, Chang AC & Borchardt DB1997. Quantification of microporosity by nuclear magnetic resonance relaxation of water imbibed in porous media. Water Res.,31: 877–883. Jacangelo J, DeMarco J, Owen D & Randtke S 1995. Selected processes for removing NOM: an overview. J. Am. Water Works Assoc., 87: 64–77. Kaiser K Guggenberger G & Zech W 2001. Isotopic fractionation of dissolved organic carbon in shallow forest soils as affected by sorption. Acta Hydrochim. Hydrobiol., 28: 411-419. Kaschl A, Romheld V & Chen J 2002. Cadmium binding by fraction of dissolved organic matter and humic substances from municipal solid waste compost. J. Environ. Qual., 31: 1885–1892. Kim S, Simpson AJ, Kujawinski EB, Freitas MA & Hatcher PG 2003. High resolution electrospray ionization mass spectrometry and 2D solution NMR for the analysis of DOM extracted by C-18 solid phase disk. Org. Geochem., 34: 1325–1335. Leenheer JA, Noyes TI, Rostad CE & Davisson ML2004. Characterization and origin of polar dissolved organic matter from the Great Salt Lake. Biogeochemistry, 69: 125–141. Lennon JT 2004. Experimental evidence that terrestrial carbon subsidies increase CO2 flux from lake ecosystems. Decologia,138(4): 584–591. Lu XQ Maie N, Hanna JV, Childer DL & Jaffe R 2003. Molecular Characterization of Dissolved Organic Matter in Freshwater Wetlands of Florida Everglades. Water Research, 37: 2599-2606. Lu JH, Chang AC & Wu LS 2004. Distinguishing sources of groundwater nitrate by 1H NMR of dissolved organic matter. Environ. Pollut., 132: 365–374. Marschner B &Kalbitz K 2003. Controls of bioavailability and biodegradability of dissolved organic matter in soils. Geoderma,113: 211–235. Ohlenbusch G & Frimmel FH 2001. Investigations on the sorption of phenols to dissolved organic matter by a QSAR study. Chemosphere, 45: 323–327. Peuravuori J2005. NMR spectroscopy study of freshwater humic material in light of supramolecular assembly.Environ. Sci. Technol., 39: 5541–5549. Puddu A, Zoppini A & Pettine M 2000. Dissolved organic matter and microbial food web interactions in the marine environment: the case of the Adriatic Sea. Int. J. Environ. Pollut., 13: 473–494 Ravichandran M 2004. Interactions between mercury and dissolved organic matter, a review.Chemosphere, 55: 319–331. Rochelle-Newall EJ & Fisher TR 2002. Chromophoric dissolved organic matter and dissolved organic carbon in Chesapeake Bay. Mar. Chem.,77: 7–21. Seitzinger SP, Sanders RW & Styles R 2002. Bioavailability of DON from natural and anthropogenic sources to estuarine plankton. Limnol. Oceanogr., 47: 353–366. Shin H, Monsallier JM & Gregory RC 1999. Spectroscopic and chemical characterizations of molecular size fractionated humic acid. Talanta 50: 641–647. vanHeemst JDH, Peulve S & de Leeuw JW 1996. Novel algal polyphenolic biomacromolecules as significant contributors to resistant fractions of marine dissolved and particulate organic matter. Org. Geochem., 24: 629–640. vanHeemst JDH, van Bergen PF, Stankiewicz BA & de Leeuw JW 1999. Multiple sources of alkylphenols produced upon pyrolysis of DOM, POM and recent sediments. J. Anal. Appl. Pyrolysis, 52: 239–256.
