Ammonia-Nitrogen Recovery from Synthetic Solution using Agricultural Waste Fibers

In this study, modification of Empty Fruit Bunch (EFB) fibers as a means to recover ammonianitrogen from a synthetic solution was investigated. Methods: The EFB fiber was modified using sodium hydroxide.Adsorption-desorption studies of ammonia nitrogen into the modified EFB fiber were investigated Findings: Theincrease in adsorption capacity was found to be proportional with the increase of pH up to 7, temperature and ammoniaconcentration. The maximum adsorption capacity is 0.53-10.89 mg/g. The attachment of ammonia nitrogen involves ionexchange-chemisorption. The maximum desorption capacity of 0.0999 mg/g. Applications: This study can be used as abaseline for designing a low cost adsorbent system for ammonia nitrogen recovery drainage and industrial wastewater aswell as EFBs-palm oil mill effluent composting

Heavy metal accumulation in the leaves, stem and root of the invasive submerged macrophyte Myriophyllum spicatum L. (Haloragaceae): an example of Kadin Creek (Mugla, Turkey)

In this study, the existence of heavy metals such as chromium (Cr), arsenic (As), cadmium (Cd), mercury (Hg) and lead (Pb) their distribution in the organs of plant and their bioaccumulation rates in water samples and Myriophyllum spicatum which were collected from the Kadin Creek in seasonal periods between 2011 and 2012 were analyzed. Heavy metal concentrations in the mineralized plant and water samples were determined with Inductive coupled plasma with mass spectroscopy (ICP-MS). Results showed the maximum heavy metal concentrations, in the root and minimum heavy metal concentrations, except chromium, in the stem. The distribution of heavy metals As, Cd, Hg and Pb was in the form of root > leaf > stem; the distribution of Cr was in the root > stem > leaf. There was a strong negative correlation between the suspended solid matter and heavy metal concentrations in the plant tissues. Heavy metal accumulation showed increase generally in fall. Heavy metals in the water were sorted as Pb > Cr > As > Hg > Cd by their mean concentrations. According to the factor data of bioconcentration, the order of heavy metal accumulation in the plant was As > Cr > Pb > Hg > Cd

Chemical investigation of water resources around the Yatagan Thermal Power Plant of Turkey

WOS: 000229510200011In this work, trace metals such as Hg, Pb, As, Cd, Cu, Fe, Mn and Zn in underground water samples obtained from three wells, an ash-pond and drinking water located near the Yatagan Thermal Power Plant were measured. As, Hg, Cu and Zn contents of the underground water were lower than those reported in the EEC (European Economic Community) and WHO (World Health Organization) guidelines. In contrast, the levels of Fe, Pb, Cd and Mn in some groundwater samples were higher than EEC and WHO guideline values. The trace metal concentrations in coal ash-pond water were observed to be lower than water quality standards with the exception of Pb. The obtained results indicated that the trace metal concentration in the sampled drinking water site did not exceed WHO limits

HEAVY METAL CONCENTRATIONS IN FISH (Cyprinus Carpio AND Carassius Carassius), SEDIMENT, AND WATER FOUND IN THE GEYIK DAM LAKE, TURKEY

Tuna, Atilla/0000-0001-5123-0031WOS: 000277905500006This study provides new information on the distribution of heavy metals (Cd, Co, Cu, Fe, Mn, Ni, Pb, and Zn) in fish (tissues of Cyprinus carpio and Carassius carassius), sediment, and water from the Geyik Dam Lake. Comparisons were made between metal concentrations in water and sediment with those in muscle, gill, and liver of these fish species. In all samples, concentrations of most metals were high. Water samples contained high levels of Cu in winter and Fe in summer, whereas those of Co were low during both seasons. Sediment samples contained high Fe amounts in winter and summer, but those of Cd and Pb were low in summer and that of Co and Cu in winter. Moreover, there was more metal accumulation in the muscle of Cyprinus carpio and Carassius carassius than in the liver or gills. The pollution in this area likely originates from agricultural and domestic waste discharges

Sources and distribution of trace metals in the Saricay Stream basin of southwestern Turkey

Tuna, Atilla/0000-0001-5123-0031WOS: 000243970000006PubMed ID: 16897512Seasonal variation of the concentrations of trace metals ( Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn) were measured by ICP-AES in the water and sediment from the Saricay Stream, Geyik Dam and OrtakoyWell in the same basin. Comparisons between trace metal concentrations in water and sediment in three sources ( Stream, Dam and Well) were made. The concentrations of a large number of trace metals in the water and sediment were generally higher in the Stream than in the Well and Dam, particularly in summer. Trace metal concentration ranges in sediments of the Saricay Stream and its sources showed very wide ranges ( as mass ratio): Co: 5 - 476 mu g g(-1), Cr: 15 - 1308 mu g g(-1), Cu: 7 - 128 mu g g(-1), Fe: 1120 - 13210 mu g g(-1), Mn: 150 2613 mu g g(-1), Ni: 102 - 390 mu g g(-1), Pb: 0.7 - 31.3 mu g g(-1) and Zn: 18 - 304 mu g g(-1), whereas Cd was not detected. Trace metal concentration ranges found in waters were: Co: 9.5 - 20.7 mu g L-1, Cr: 20.3 - 284 mu g L-1, Cu: 170 - 840 mu g L-1, Fe: 176 - 1830 mu gL(-1), Mn: 29.3 387 mu g L-1, and Ni: 4.3 - 21.9 mu g L-1. Among the trace metals studied, Cd and Zn in two seasons and Pb in winter were usually not detected or in the recommended levels. In addition, Cd was not detected in the sediment during the winter season. The analysis of variance ( one-way ANOVA) and correlation matrix was employed for the sediment and water samples of the two field surveys ( summer and winter) comparison. The three sources showed differences in metal contents. The metal levels in sediments displayed marked seasonal and regional variations, which were attributed to anthropogenic influences and natural processes. In the Saricay Stream, high values of metals during the dry season showed an anthropological effect from small industry firms, e. g.: an olive mill and a dairy farm or water dilution during summer seasons. Finally, the pollution in this basin probably originated from small industrial, low quality coal-burned thermal power plants, and particularly agricultural and domestic waste discharges

Solid phase extraction of copper(II) by modified octadecyl silica membrane disks with 3-{2-[2-(2-hydroxyimino-1-methyl-propylideneamino)-ethylamino]-ethyl-imino}-butan-2-one oxime

WOS: 000186457100013A simple, selective and rapid method for determining trace amounts of copper(II) ions in various types of water samples using atomic absorption spectrophotometry was investigated. Copper(II) ions from water samples were preconcentrated by solid phase extraction rising octadecyl silica membrane disks modified with 3-{2-[2-(2-Hydroxyimino-1-methyl-propylideneamino)-ethylamino]-ethyl-imino}-butan-2-one oxime, (H(2)mdo). The experimental conditions were optimized by changing several parameters such as volume of eluting solvent, the effect of pH, eluent flow rates, the amount of H2mdo, breakthrough the volume, limit of detection and maximum capacity of the disks for Cu2+ recovery. The method was applied to the recovery of Cu(II) ions from seven different water samples and ail international certified reference sample (SLRS-4), the method was also quantitative

Solid Phase Extraction of Copper(II) by Modified Octadecyl Silica Membrane Disks with 3-{2-[2-(2-Hydroxyimino-1-methyl-propylideneamino)-ethylamino]-ethyl- imino}-butan-2-one Oxime

A simple, selective and rapid method for determining trace amounts of copper(II) ions in various types of water samples using atomic absorption spectrophotometry was investigated. Copper(II) ions from water samples were preconcentrated by solid phase extraction using octadecyl silica membrane disks modified with 3-{2-[2-(2-hydroxyimino-1-methyl-propylideneamino)-ethylamino]- ethyl-imino}-butan-2-one oxime, (H2mdo). The experimental conditions were optimized by changing several parameters such as volume of eluting solvent, the effect of pH, eluent flow rates, the amount of H2mdo, breakthrough the volume, limit of detection and maximum capacity of the disks for Cu2+ recovery. The method was applied to the recovery of Cu(II) ions from seven different water samples and an international certified reference sample (SLRS-4), the method was also quantitative