Volume 1, Issue 3最新文献_第6页

Universal Thermal Climate Index (UTCI) and synoptic circulation patterns over the metropolitan city of Athens, Greece 希腊雅典的普遍热气候指数(UTCI)和天气环流型态

Volume 1, Issue 3 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002556

{"title":"Universal Thermal Climate Index (UTCI) and synoptic circulation patterns over the metropolitan city of Athens, Greece","authors":"","doi":"10.30955/gnj.002556","DOIUrl":"https://doi.org/10.30955/gnj.002556","url":null,"abstract":"The present study aims to investigate the human thermal stress with respect to the synoptic scale circulation over the metropolitan city of Athens in Greece. The Universal Thermal Climate Index (UTCI) was applied in order to assess the levels of thermal stress employing three-hour meteorological data for four stations of the urban complex for a ten-year period (2006-2015). The patterns of the synoptic atmospheric circulation were classified in eight distinct categories based on a clustering scheme. The obtained results in summer reveal low UTCI values on days that are associated with a cyclonic pattern or a cold advection from the northwest or north. On the contrary, the days with an anticyclonic pattern show high UTCI values. During winter, low UTCI values are observed on days that are associated with a pure cyclonic pattern, a prevailing northern flow and a strong cold air advection from the northwest or north. During nighttime, high UTCI values are noted on days with south-westerly flow. However, this is not observed during daytime and especially around midday. The analysis also shows that the position of the station affects the levels of thermal stress for the same synoptic category. \u0000","PeriodicalId":23539,"journal":{"name":"Volume 1, Issue 3","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88809488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Olive Mill Wastewater (OMW) Treatment by Using Ferric Oxide Dephenolization and Chemical Oxygen Demand Removal 氧化铁脱酚-化学除氧法处理橄榄厂废水

Volume 1, Issue 3 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002650

Al-Shaweesh, Al-Kabariti, Al-Zawaidah

{"title":"Olive Mill Wastewater (OMW) Treatment by Using Ferric Oxide Dephenolization and Chemical Oxygen Demand Removal","authors":"Al-Shaweesh, Al-Kabariti, Al-Zawaidah","doi":"10.30955/gnj.002650","DOIUrl":"https://doi.org/10.30955/gnj.002650","url":null,"abstract":"In Jordan and as in many other Mediterranean countries olive oil production is one of the major agricultural production, it is estimated that the annual production of olive oil in Jordan approximately 21.5 thousand tons per year. O the other hand the process of olive oil extraction generates around 200,000 m3 of olive mill wastewater (OMW) and it is considered as a a serious problem in. In this study the real sample of wastewater is collected from the outlet at the mill near by the university campus. The analysis of this collected wastewater has shown a very high Chemical Oxygen Demand COD (253.648 kg/l) and Bilogical Oxygen Demand, BOD (89.365kg/l). These high BOD and COD reveals a real need to treat it before sent to municipal sewage. The study also focuses on reducing an organ phenol component which has been measured and found equal to 0.5698mg/l. The use of Ferric Oxide in the form of nanoparticles was successfully used to oxide organic phenols from olive mill wastewater (OMW) and has reduced to 0.002 mg/l. The results show that 0.1g of Ferric Oxide in the form of nanoparticles when mixed with sand has the capacity to remove the phenols from the collected samples. The removal percentage obtained here reached 97%. When the mixture of ferric nanoparticles used with sand in a ratio of 0.1 g Fe2O3and 1 kg of sand, the removal capacity of organic phenols has reached to 99%, and COD () in percentage of 97.2%. The results show an interesting behavior towards other minerals that exists in solution, that ferric nanoparticles have a good capacity to remove Cr+3Cu+3 K+Ca+2Na+.minerals exist in wastewater. \u0000","PeriodicalId":23539,"journal":{"name":"Volume 1, Issue 3","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87273024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Sorption of Cobalt (II) Ions from Aqueous Solutions Using Chemically Modified Chitosan 化学改性壳聚糖对水溶液中钴离子的吸附研究

Volume 1, Issue 3 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002804

Al-Shahrani, E. Al-Abbad, G. Al-Mazaideh, A. Hosseini-Bandegharaei

引用次数: 23

Review on Treatment of Acid Mine Drainage with Waste Materials: A Novel Approach 废液处理矿山酸性废水的新途径

Volume 1, Issue 3 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002610

Sukla Saha, A. Sinha

{"title":"Review on Treatment of Acid Mine Drainage with Waste Materials: A Novel Approach","authors":"Sukla Saha, A. Sinha","doi":"10.30955/gnj.002610","DOIUrl":"https://doi.org/10.30955/gnj.002610","url":null,"abstract":"The present study systematically and comprehensively reviewed different aspects of treating Acid Mine Drainage (AMD) with active treatment and waste materials. The work also critically reviews the status and the factors associated with the treatment process. Although, conventional active methods are very efficient but they are mainly associated with costly material as well as high maintenance cost which enhances the cost of entire treatment system. Waste materials such as fly ash, metallurgical slag, zero valent iron (ZVI), cement kiln dust (CKD), organic waste such as peat humic agent (PHA) and rice husk can be efficiently used for the treatment of AMD. However, efficiency of different waste material varied from each other due to the variation in their physical and chemical characteristics. The results from the investigation showed that fly ash, metallurgical slag and CKD raise the pH of acidic solution more, in comparison to ZVI and organic waste, due to their richness in lime content. Furthermore, fly ash can be efficiently converted and utilized in its other derivative such as chemically modified fly ash and zeolite. Efficiency of ZVI is hindered by the presence of higher concentration of total dissolved solids. PHA can treat AMD that is mild acidic in nature. Besides, long retention time is required for the removal of heavy metals and sulfur with organic waste and sulfate reducing bacteria (SRB). The study also potentially reviewed that metal removal from AMD varied due to composition of AMD and the characteristics of waste materials. However, waste materials demand more attention for its practical applicability in field conditions due to its richness, higher possibility for recycling and reuse, low installation cost and harmless nature towards the environment. \u0000","PeriodicalId":23539,"journal":{"name":"Volume 1, Issue 3","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91477049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 29

Antioxidant Activities and Heavy Metal Contents of Castanea Sativa Honey 番麻蜂蜜的抗氧化活性及重金属含量

Volume 1, Issue 3 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002628

K. Temizerİ.

{"title":"Antioxidant Activities and Heavy Metal Contents of Castanea Sativa Honey","authors":"K. Temizerİ.","doi":"10.30955/gnj.002628","DOIUrl":"https://doi.org/10.30955/gnj.002628","url":null,"abstract":"Honey is one of the most valuable foods in terms of its antioxidant nature and antioxidant activity. In this study, their botanic origins, total flavonoid content, total phenol content, the hydrogen peroxide scavenging activity (HPSA) (in terms of SC50 (µg mL-1)), ferric reducing antioxidant power capacity (FRAP), 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity (in terms of SC50), metal-chelating activity (MCA) (%) and heavy metal amounts were examined to determine the qualities of honey samples that gathered from Giresun city of Black Sea region in Turkey. According to the melissopalynological analysis, the botanic origins of the samples are Castanea sativa (Chestnut) Miller and uni-floral. The HPSA, FRAP, DPPH, MCA (%), total phenol content (TPC), and total flavonoid content (TFC) were found between 251.99±0.48-258.64±1.22 µg mL-1, 71.34±0.09-73.71±0.20 %, 584.86±0.06-595.04±0.29 µg mL-1, 36.73±0.00-36.86±0.09 %, 93.82±1.05-173.15±2.46 mg GAE 100 g-1 and 5.51±0.19-8.29±0.05 mg CAE/100 g, respectively. For comparison of these results, Butylated Hydroxy Anisole (BHA), Butylated Hydroxy Toluene (BHT) and α-Tocopherol (TOC) were used as standard antioxidant compounds. In addition, it was observed that honey samples were been contaminated with most of the heavy metals (Al, Ca, Cr, Cu, Fe, Li, Mg, Mn, Ni, Rb, and Zn) to a lesser or greater extent, whereas others (Te, Tl, and U) were never detected in these samples. However, Cd and Cs were detected only in one sample and Pb in another sample Finally, the results indicate that although honey is an important source of nutrients, nevertheless it could be affected by environmental pollution. \u0000","PeriodicalId":23539,"journal":{"name":"Volume 1, Issue 3","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81906756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

The Right of Thirst: Water as a Human Right and as a Commons 口渴的权利:水作为一项人权和公共资源

Volume 1, Issue 3 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002551

引用次数: 24

Scavenging of atmospheric particulates by snow in Changji, China 昌吉市积雪对大气颗粒物的清除作用

Volume 1, Issue 3 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002548

Y. Liu

引用次数: 5

Thermally treated aluminium waste-filings, a low cost and efficient adsorbent for phosphorus removal from water 热处理铝废渣，一种低成本、高效的水中除磷吸附剂

Volume 1, Issue 3 Pub Date : 2018-09-26 DOI: 10.30955/GNJ.002562

Mehdi Qasemi, A. Hosseini-Bandegharaei, M. Afsharnia, A. Najafpoor, A. Ivanets, A. López‐Delgado, F. Alakhras, M. Shams

{"title":"Thermally treated aluminium waste-filings, a low cost and efficient adsorbent for phosphorus removal from water","authors":"Mehdi Qasemi, A. Hosseini-Bandegharaei, M. Afsharnia, A. Najafpoor, A. Ivanets, A. López‐Delgado, F. Alakhras, M. Shams","doi":"10.30955/GNJ.002562","DOIUrl":"https://doi.org/10.30955/GNJ.002562","url":null,"abstract":"A facile strategy toward modification of aluminium filings (AF), a waste material from aluminium manufacturing industry, into a highly efficient adsorbent was examined. AF was simply treated with thermal modification to form a cheap adsorbent for Phosphorus (P) removal from aqueous solutions. The results showed that increasing the calcination temperature from 500 to 900 ˚C improved the P removal. P adsorption occurred quite fast and 70% of P removal observed in 15 minutes. Adsorption efficiency was increased by increasing pH, decreasing P initial concentration as well. The presence of coexisting anions, except HCO3-, showed a negligible effect on P adsorption by AF. Thermodynamic studies revealed that P adsorption onto AF was endothermic in nature. Kinetic modelling demonstrated that the adsorption rate was controlled by the chemisorption. The process also fitted well with the Langmuir isotherm model, indicating that the process proceeds via monolayer coverage with 49.97 mg g-1 maximum monolayer capacity. Overall, in addition to beneficial environmental and economic aspects, the results demonstrated excellent adsorption characteristics which make thermally treated AF a promising adsorbent material for phosphorus removal from polluted streams. \u0000","PeriodicalId":23539,"journal":{"name":"Volume 1, Issue 3","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76296498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Thermophilic Dark Fermentation of Sewage Sludge for Biohydrogen Production - Influence of pH 污水污泥嗜热暗发酵产氢——pH值的影响

Volume 1, Issue 3 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002711

引用次数: 1

Determination of ultra-trace amounts of neonicotinoid insecticide imidacloprid by cyclic and square wave voltammetric methods using pretreated glassy carbon electrode 预处理玻碳电极循环伏安法和方波伏安法测定超微量新烟碱类杀虫剂吡虫啉

Volume 1, Issue 3 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002509

Ben Brahim

{"title":"Determination of ultra-trace amounts of neonicotinoid insecticide imidacloprid by cyclic and square wave voltammetric methods using pretreated glassy carbon electrode","authors":"Ben Brahim","doi":"10.30955/gnj.002509","DOIUrl":"https://doi.org/10.30955/gnj.002509","url":null,"abstract":"Pesticide production and application have progressively increased worldwide during recent decades. Among these compounds, imidacloprid (IMD) is a widely used insecticide in agriculture, and more particularly to control sucking insects in crops. The aim of this work is to develop rapid, simple and sufficiently sensitive cyclic voltammetry (CV) and square wave voltammetry (SWV) for the detection and quantification of this insecticide in water and agriculture samples. Pretreated glassy carbon electrode (PGC) was employed as working electrode. Aqueous solutions were prepared with Confidor 200-SL commercial formulation of IMD. Each voltammogram was characterized by a well-defined single irreversible cathodic peak at approximately -1.38 V/SCE. The electrode reaction is mainly a diffusion controlled process. The optimization of experimental parameters such as IMD initial concentration, potential scan rate, pH and temperature was carried out by CV, and then a comparative study was conducted by SWV. For the detection and quantification of IMD, the results obtained by SWV showed higher sensibility and accuracy than that by CV. The developed methods were successfully used to determine IMD in real samples, namely plum and peach juice. \u0000","PeriodicalId":23539,"journal":{"name":"Volume 1, Issue 3","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81560824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9