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31.
Ağdağ ON 《Waste management (New York, N.Y.)》2009,29(1):456-464
Rapid economic growth, increasing population and change in living standards contribute to increasing the generation rate of municipal solid waste (MSW) in Denizli city, like other Turkish cities. The improper and poor MSW management system (old system) in Denizli caused environmental problems originating from the uncontrolled release of methane and leachate. In addition, the disposal of recyclable materials in unsanitary landfills is responsible for the consumption and destruction of natural sources. This paper presents a general overview of old and new MSW management practices in Denizli. Detailed data on MSW management practices including collection, transportation, disposal and recycling have been presented. The amount of solid waste generated in Denizli over the last decade has increased steadily over the years, from 108,500 tons in 1995 to 179,495 tons in 2006. The average MSW generation rate was found to be 1.23kg/day per capita. The major constituent of MSW in Denizli is food waste, but the percentage of recyclable waste has increased significantly recently. Except for metal wastes, the percentages of recyclable waste materials in Denizli are higher than in all neighborhood cities. The objective of this study is to compare the old and new MSW management systems in Denizli city. The MSW management system has been changed entirely last five years. A dumpsite was closed and a sanitary landfill with a composting facility was constructed. In addition, source separated collection has been carried out since 2002. The quantity of recyclable waste collected increased from 195 to 1549 tons. The amount of recyclable waste will continue to be increased by expanding the source separation collection system to all the districts of the city and preventing scavenging. Thus, revenue from recyclable waste ($7227 in 2006) is expected to increase. In addition, the capacity of the composting facility will be increased. Most importantly, information to increase public participation and awareness in municipal recovery programs has to be provided. 相似文献
32.
Adel Abdelkader Ahmed I. Osman Samih A. Halawy Mohamed A. Mohamed 《Journal of Material Cycles and Waste Management》2018,20(3):1428-1436
The present study includes synthesis of two γ-Al2O3 samples from waste aluminum cans using a simple precipitation method. Precipitation was carried out using two different precipitating agents (i.e. NaOH and NH4OH). The two prepared alumina samples were characterized by means of X-ray diffraction (XRD) and N2 adsorption–desorption techniques. Surface acidity of γ-Al2O3 samples was measured by adsorption of two different probe molecules (i.e. pyridine and dimethyl pyridine) followed by desorption measurements using thermogravimetry (TG) and differential scanning calorimetry (DSC) techniques. Catalytic activity of the two prepared alumina samples towards the dehydration of methanol (to dimethyl ether) was studied in a fixed bed reactor at 300 °C. For comparison reasons, commercial γ-Al2O3 sample was, also, tested for the same catalytic reaction under the same conditions. Results showed that the alumina sample prepared using NaOH as a precipitating agent exhibited a better catalytic activity and stability compared with that prepared using NH4OH and showed a similar activity as the commercial γ-Al2O3 sample. 相似文献
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Persistence of carbaryl in canal water 总被引:2,自引:0,他引:2
The presence of the insecticide carbaryl (Sevin) and its decomposition product 1-napthol was confirmed in irrigation and drainage canal water. However, their residues disappeared from the water 6 days after application. 相似文献
36.
Onder Erguven Gokhan Tatar Şule Serdar Osman Yildirim Nuran Cikcikoglu 《Environmental science and pollution research international》2021,28(3):2871-2879
Environmental Science and Pollution Research - This study reveals out detoxifying and antioxidant enzyme response of Gammarus pulex exposed/polluted to chlorpyrifos-ethyl insecticide before and... 相似文献
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Huseyin Yilmaz Kamil Bostan Nuri Turan Karlo Muratoglu Aysun Yilmaz Ayşe A. Ozkul Bekir Kocazeybek Christopher Helps 《Food and environmental virology》2010,2(2):64-68
Norovirus (NoV) is recognised as one of the most common causes of foodborne infections, and shellfish are a well-documented
source of this virus. The presence of NoV in shellfish has not previously been investigated in Turkey, and hence the aim of
this study was to determine the frequency of human NoV genogroups I and II in mussels collected from the Bosphorus, Istanbul,
Turkey. A total of 320 mussels representing 110 samples originating along the Bosphorus coast were collected from fish distributors.
RNA was extracted using the RNeasy Mini Kit and real-time RT–PCR performed using primers specific for NoV genogroup I and
II. Amongst the 110 samples, 5 (4.5%) were found to be positive for NoV genogroup II by SYBR Green assay; no genogroup I was
detected. A positive signal was obtained by SYBR Green for NoV Genogroup II in mussels collected in October, November and
December 2008, and February and July 2009. Only four out of five SYBR Green positive samples could be confirmed by the use
of a NoV GII probe-based real-time RT–PCR. The average count and SD of Enterobactericaeae, E. coli and sulphide reductase anaerobic bacteria in PCR positive mussels were 3.56 log ± 0.96 log, 2.32 log ± 0.77 log and 1.70
log ± 0.56 log, respectively. This study shows that NoV Genogroup II is present in mussels collected from the Bosphorus, Istanbul,
and may constitute a risk to human health. 相似文献
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Farghali Mohamed Osman Ahmed I. Umetsu Kazutaka Rooney David W. 《Environmental Chemistry Letters》2022,20(5):2853-2927
Environmental Chemistry Letters - The Ukraine conflict has put critical pressure on gas supplies and increased the price of fertilisers. As a consequence, biogas has gained remarkable attention as... 相似文献