Volume 4 Issue 1最新文献_第8页

Scaling-up sustainable Chlorella vulgaris microalgal biomass cultivation from laboratory to pilot-plant photobioreactor, towards biofuel 扩大可持续的普通小球藻微藻生物量培养，从实验室到中试植物光生物反应器，向生物燃料发展

Volume 4 Issue 1 Pub Date : 2018-10-15 DOI: 10.30955/gnj.002777

G. Papapolymerou, A. Riga

{"title":"Scaling-up sustainable Chlorella vulgaris microalgal biomass cultivation from laboratory to pilot-plant photobioreactor, towards biofuel","authors":"G. Papapolymerou, A. Riga","doi":"10.30955/gnj.002777","DOIUrl":"https://doi.org/10.30955/gnj.002777","url":null,"abstract":"Unicellular microalgal culture represents a new opportunity for producing significant biofuel quantities in the future along with other specialty products, due to several major advantages microalgae species present when compared to conventional crops, including much faster growth rates, cultivation in a variety of environments and photobioreactor systems, and almost 100% recycling of nutrients. In the current research, the scaling-up of the cultivation of Chlorella vulgaris microalgae to a 4 m3 pilot-plant photobioreactor is examined, compared to the performance of a 25 L automated laboratory bioreactor. Beyond the size and configuration, the main differences of the two bioreactors are the mode of operation, the illumination nature and depth, the temperature, and pH. Specifically, temperature and illumination are naturally varying from day to day and season to season into the pilot-plant photobioreactor that is set inside a greenhouse. The specific growth factor appears to be higher for microalgal cultivation in the laboratory bioreactor. It is also found that the growth kinetics is severely slowed down during the winter months. This is primarily due to the low temperatures and the poor illumination observed during winter. \u0000","PeriodicalId":23712,"journal":{"name":"Volume 4 Issue 1","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82144409","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: 11

Bioconversions of olive oil mill wastewaters blends 橄榄油厂废水混合物的生物转化

Volume 4 Issue 1 Pub Date : 2018-10-15 DOI: 10.30955/gnj.002738

引用次数: 0

The use of bio-carriers and zeolite in a lab-scale MBR for membrane fouling mitigation 在实验室规模的MBR中使用生物载体和沸石缓解膜污染

Volume 4 Issue 1 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002546

{"title":"The use of bio-carriers and zeolite in a lab-scale MBR for membrane fouling mitigation","authors":"","doi":"10.30955/gnj.002546","DOIUrl":"https://doi.org/10.30955/gnj.002546","url":null,"abstract":"The Membrane Bio-Reactor (MBR) technology offers a series of environmentally-friendly advantages, such as high quality effluent, pathogens removal capacity and avoided use of chemicals for disinfection, allowing it to be regarded as an environmentally friendly technology, when applied for wastewater treatment. However, membrane fouling still remains a major drawback, preventing its widespread application for municipal or industrial wastewater treatment. The use of additives (i.e. adsorbents, bio-carriers etc.) is considered to be among the major strategies implemented for membrane fouling control over the last few years. The present work examines the influence of bio-carriers addition, as well as of zeolite powder on the reversible and irreversible membrane fouling of a lab-scale MBR. High-strength synthetic municipal wastewater (with BOD5 around 1000 mg/L) was fed as the substrate for the activated sludge process and a flat-sheet microfiltration membrane was operated for solids (biomass) - liquid separation at the flux of 17 L/m2h. The obtained results showed that the addition of zeolite contributed mainly to the alleviation of irreversible fouling, leaving the reversible fouling practically unaffected, while the addition of bio-carriers had quite the opposite effect. In addition, it was shown that the lab-scale MBR system operated successfully, treating a high-strength synthetic municipal wastewater, as high removals were observed in terms of both organics and especially of ammonium removal (over 98%). \u0000","PeriodicalId":23712,"journal":{"name":"Volume 4 Issue 1","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83790195","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: 3

Novel composite materials as P-adsorption agents and their potential application as fertilizers 新型磷吸附复合材料及其在肥料中的应用前景

Volume 4 Issue 1 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002752

M. Zamparas

引用次数: 23

“Cycle closure” in waste management: tools, procedures and examples 废物管理中的“循环封闭”:工具、程序和例子

Volume 4 Issue 1 Pub Date : 2018-09-26 DOI: 10.30955/GNJ.002679

Anastasios Zoumpoulis, E. Peleka

{"title":"“Cycle closure” in waste management: tools, procedures and examples","authors":"Anastasios Zoumpoulis, E. Peleka","doi":"10.30955/GNJ.002679","DOIUrl":"https://doi.org/10.30955/GNJ.002679","url":null,"abstract":"Green Chemistry is a philosophy of chemical research and application that encourages the design of appropriate products/ processes in order to minimize the use and production of hazardous chemicals. Green Chemistry involves the application of new, milder synthetic pathways, the avoidance of toxic solvents’ use, the use of alternative sources of raw materials, the prevention of pollution, the design of environmental friendly products, the protection of workers’ health and the reduction of energy consumption. Wastewater treatment plants consume significant amounts of energy for collection, transport, processing and final disposal of water and by-products. Attempting to reduce the respective energy costs, energy recovery is an attractive alternative, as liquid wastes considered to contain significant amounts of energy. In addition, many technologies have been developed recently to recover useful materials from liquid wastes (phosphorus is a typical example). In 2012, the EU-28 Member States discarded 2.5 billion ton of wastes, of which 4% was classified as hazardous, hence immediate and environmental friendly solutions are requested. The need to record and report the Environmental Footprint of an enterprise/industry becomes imperative. The adoption of green practices can act as catalyst to improve the processes of an enterprise, to reduce the cost of products and to maintain an environmental responsible attitude. \u0000","PeriodicalId":23712,"journal":{"name":"Volume 4 Issue 1","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82447840","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: 11

Geochemical investigations regarding the variability of metal pollution in the Amvrakikos Bay, Greece. 希腊Amvrakikos湾金属污染变异的地球化学调查。

Volume 4 Issue 1 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002733

{"title":"Geochemical investigations regarding the variability of metal pollution in the Amvrakikos Bay, Greece.","authors":"","doi":"10.30955/gnj.002733","DOIUrl":"https://doi.org/10.30955/gnj.002733","url":null,"abstract":"The Amvrakikos Bay is one of the most important ecosystems in the Mediterranean with great environmental, ecological and biological value. However, over the years, water quality has suffered severe degradation and is now one of the most polluted environmental areas in Greece. In the present study, using the analytical data of concentrations of precipitated metal deposits at the bottom of Amvrakikos Gulf, at its three largest lagoons: Logaros, Tsoukalio and Rodia, and by applying the indicators PLI, Igeo and EF, an assessment of the level of pollution of the area was made. The use of these indicators may show the degree of pollution of the area with heavy metals, and reveal the source of pollution i,e. whether the heavy metals are of anthropogenic or of natural processes, assessing simultaneously the degree of anthropogenic effect. Based on the PLI indicator, the marine zone in Menidi and Paliovarka as well as the Rodia and Tsoukalio lagoons are considered to be polluted. According to the Igeo Index, the sampling areas are unchanged to slightly burden by heavy metals. The largest charge is caused by Ni, followed by Mn and Pb. Based on EF, the concentrations of Cr, Mn, Co, Pb and Ni are significantly influenced by the various anthropogenic activities. \u0000","PeriodicalId":23712,"journal":{"name":"Volume 4 Issue 1","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84712136","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: 6

Simulation of soil heavy metal pollution environmental stress on plant growth characteristics in the presence of wastewater 模拟土壤重金属污染环境胁迫对废水存在下植物生长特性的影响

Volume 4 Issue 1 Pub Date : 2018-09-26 DOI: 10.30955/gnj.002758

D. Papaioannou

引用次数: 3

The developing new wave of Nollywood : a conversation with Niyi Akinmolayan 尼莱坞新浪潮的发展:与Niyi Akinmolayan的对话

Volume 4 Issue 1 Pub Date : 2018-06-12 DOI: 10.31920/2516-2713/2018/v1n1a2

Babatunde Onikoyi

{"title":"The developing new wave of Nollywood : a conversation with Niyi Akinmolayan","authors":"Babatunde Onikoyi","doi":"10.31920/2516-2713/2018/v1n1a2","DOIUrl":"https://doi.org/10.31920/2516-2713/2018/v1n1a2","url":null,"abstract":"The new wave of Nollywood is largely defined by the operations and vibrant undertakings of young and serious minded filmmakers in Nigeria. This crop of filmmakers are determined to take over the industry by producing film and movies that possess the much desired lasting substance. These filmmakers are those who Jonathan Haynes has referred to as the “New Nollywood” filmmakers (Haynes, 2014) that gradually emerged with the coming of age of Kunle Afolayan’s The Figurine (2010). Niyi Akinmolayan, a film director and producer is a typical example of this group of filmmakers, whose filmic oeuvre is beginning to attract global attention and significance. In this interview, I engage the cineaste in a discussion that centres on him and permeate the universe of his works. I concentrate on his background and steady rise and development, his philosophy about film in general, and then Nollywood. I tackle him on the development of the various film technologies that have defined the Nigerian cinema. The conversation takes us through particular areas of film apparatuses such as storytelling, film narratives, directors, cinemas films, home videos, audience matter and pioneers of the industries, with reference to those who are unknown and that have influenced this visual creator at Anthills Studio.","PeriodicalId":23712,"journal":{"name":"Volume 4 Issue 1","volume":"93 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79589669","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: 1

Poetics of mnemonic strategy : the art of adaptation and the spirituality of being & things in Tunde Kelani’s Saworoide and The Narrow Path 记忆策略的诗学:坦德·克兰尼《萨沃洛伊德》与《狭路》中的适应艺术与存在与事物的精神性

Volume 4 Issue 1 Pub Date : 2018-06-12 DOI: 10.31920/2516-2713/2018/V1N1A4

Lekan Balogun

{"title":"Poetics of mnemonic strategy : the art of adaptation and the spirituality of being & things in Tunde Kelani’s Saworoide and The Narrow Path","authors":"Lekan Balogun","doi":"10.31920/2516-2713/2018/V1N1A4","DOIUrl":"https://doi.org/10.31920/2516-2713/2018/V1N1A4","url":null,"abstract":"This essay utilises two different but related concepts: “poetics and politics of literary memory” by Lars Eckstein and “adaptation” by Linda Hutcheon, to examine Yoruba narrative convention, characterisation and the “spirituality of Being and object(s)” in two films, Saworoide (1999) and The Narrow Path (2006), by the Nigerian filmmaker, Tunde Kelani, who has distinguished himself as one of the leading contemporary Nigerian and African cinema icons and storytellers. The essay argues that as one of the most significant voices in Nollywood, the history of film and cinema in Nigeria and beyond, Kelani has not only turned the adaptation of materials from page to screen into an art and a veritable source of history, he has also shown ways in which the process functions as the recollection of the fading glorious past of his race. In order to achieve its aim, the essay is divided into two parts: the first part examines the cultural and political considerations of memory and the aesthetics of adaptation in relation to Kelani’s body of works, and the second part discusses the two films by drawing from arguments that are developed in the first part.","PeriodicalId":23712,"journal":{"name":"Volume 4 Issue 1","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79162712","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: 2

Retelling the history of Lesotho : an interplay between orality, painting and film in Kalosi Ramakhula’s works 重述莱索托的历史:卡洛西·拉马库拉作品中口头、绘画和电影的相互作用

Volume 4 Issue 1 Pub Date : 2018-06-12 DOI: 10.31920/2516-2713/2018/V1N1A5

Limakatso Pepenene, Ntsele Radebe

{"title":"Retelling the history of Lesotho : an interplay between orality, painting and film in Kalosi Ramakhula’s works","authors":"Limakatso Pepenene, Ntsele Radebe","doi":"10.31920/2516-2713/2018/V1N1A5","DOIUrl":"https://doi.org/10.31920/2516-2713/2018/V1N1A5","url":null,"abstract":"Kalosi Ramakhula is the producer of Moshoeshoe: The Mountain King Volumes 1, 2 and 3, a series of videofilms which narrate the history of Lesotho in the 19th century. His production emerges as a rewriting of history in a context where historical documentation is predominantly authored by historians and ethnographers who complement their research through oral resources. Ramakhula uses a unique approach which incorporates visual art by way of historical paintings created to accomplish a coherent mixture with the established print, sound and vision media of documentary cinema. He collaborates with contemporary Basotho artists commissioned to produce elaborate naturalistic paintings of historical significant characters, sites, events and social practices of the period being depicted. Through an exploration of the concepts of multimodality and intermediality, the article uses a semiotic analysis of selected paintings to examine the multiple layers of potential meanings communicated by the film-maker. We argue that Ramakhula’s retelling strategy explicitly creates a link with the experience of nation building in the past and the present. The paintings are a significantly expressive form of media in this regard, creating a consciousness of Bosotho-ness as the one concept that in principle remains constant despite transformation over the centuries. Ramakhula’s work is seen therefore, as having the potential to create space for negotiations around contemporary debates on nation building in Lesotho.","PeriodicalId":23712,"journal":{"name":"Volume 4 Issue 1","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89811169","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: 0