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Optimal routing of complex transportation system of biomedical waste with multiple depot and disposal options 具有多个仓库和处置方案的复杂生物医疗废物运输系统的优化路径
IF 0.6 Q4 ENGINEERING, ENVIRONMENTAL Pub Date : 2018-06-25 DOI: 10.1504/IJETM.2018.10013810
Radhika Deshpande, A. Tembhurkar
Determination of safe and optimal routes for biomedical waste (BMW) collection and transportation using a fleet of vehicles is a complex issue. The issue gets significant, when the vehicles that outset from multiple depots, collects the BMW from hospitals scattered around a region and carry the waste to multiple disposal sites. The present paper deals with the development of a modified ACS-based approach to determine the optimal and safest route for BMW collection and transportation for such situation. The major objectives considered for route selection of vehicles, are the risk associated with the collection and transportation of BMW; total scheduling time of vehicles and number of vehicles. In this approach, clusters of the hospital nodes are constituted based on their distance from the nearest depot and late time window associated with the hospital node. Thereafter, the routes are scheduled and optimised using modified multi-objective ant colony system (MOACS). The computed results are validated abreast with benchmark solutions, demonstrating effectiveness of the proposed approach. Its applicability is elucidated using an illustrative example based on realistic data.
确定使用车队收集和运输生物医学废物(宝马)的安全和最佳路线是一个复杂的问题。当车辆从多个仓库开始,从分散在一个地区的医院收集宝马,并将废物运送到多个处理场时,问题变得更加严重。本文讨论了一种基于ACS的改进方法的开发,以确定在这种情况下宝马收集和运输的最佳和最安全路线。车辆路线选择考虑的主要目标是与宝马的收集和运输相关的风险;车辆的总调度时间和车辆数量。在这种方法中,医院节点的集群是基于它们与最近仓库的距离和与医院节点相关联的晚时间窗口来构成的。然后,使用改进的多目标蚁群系统(MOACS)对路线进行调度和优化。计算结果与基准解决方案同步验证,证明了所提出方法的有效性。通过一个基于实际数据的示例说明了它的适用性。
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引用次数: 2
Cadmium adsorption by natural zeolite in a circular flume 天然沸石在圆形水槽中对镉的吸附
IF 0.6 Q4 ENGINEERING, ENVIRONMENTAL Pub Date : 2018-01-01 DOI: 10.1504/IJETM.2018.10019130
M. Nasrabadi, M. Omid, A. Mazdeh, T. Shahriari
In this study, the adsorption characteristics of cadmium by the natural zeolite have been experimentally investigated in a circular flume. The effect of various parameters, such as initial cadmium and zeolite concentrations has been studied to get enhanced simulations for the natural conditions. The optimum equilibrium time was found to be 2 to 3 hr, which was independent of initial cadmium concentration. The results showed that the cadmium adsorption increased with an increase in the zeolite doses. The adsorption values increase by decreasing the initial cadmium concentration. The results of this study also showed that the absorption rate of zeolite increases from 33.3 to 123.23 mg.kg−1, but removal percentage of natural zeolite is reduced from 45.45 to 33.6%. In addition, with increasing the zeolite concentration from 3 to 20 gr.lit−1, the absorption rate decreased from 123.23 to 32.5 mg.kg−1. The results showed that pseudo second order model best described the adsorption rate.
在圆形水槽中对天然沸石对镉的吸附特性进行了实验研究。研究了镉初始浓度和沸石初始浓度等参数的影响,增强了对自然条件的模拟。最佳平衡时间为2 ~ 3hr,与初始镉浓度无关。结果表明,随着沸石用量的增加,对镉的吸附量增加。吸附值随初始镉浓度的降低而增大。研究结果还表明,沸石的吸收率从33.3 mg增加到123.23 mg。Kg−1,但天然沸石的去除率由45.45%降至33.6%。随着沸石浓度从3 mg.kg−1增加到20 mg.kg−1,吸收率从123.23 mg.kg−1降低到32.5 mg.kg−1。结果表明,拟二级模型最能描述吸附速率。
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引用次数: 6
Integral assessment of national economy sustainable development 国民经济可持续发展的综合评价
IF 0.6 Q4 ENGINEERING, ENVIRONMENTAL Pub Date : 2018-01-01 DOI: 10.1504/IJETM.2018.10022302
L. Hens, O. Shkarupa, O. Karintseva, M. Kharchenko
This study is devoted to sustainable development issues of Ukraine. The problems of assessing the sustainable development are discussed. It is shown that many indicators are insufficient to make decisions at the national level. It was proposed to define trends of the development of the national economy based on integral analysis of environmental, economic and social indicators. The criteria for the selection of the indicators, the standards and factors of development are the main prerequisites for a mechanism of sustainable development. A system of indicators is based on the statistical information and allows to determine a combined sustainability index for the economy. A three-level system of indicators is proposed as well as integrated index of sustainable development. The method allows to assess the development of the different regions of Ukraine and to identify the current trends. It allows to monitor dynamic changes due to the complex system of indicators.
本研究旨在探讨乌克兰的可持续发展问题。讨论了可持续发展评价中存在的问题。报告显示,许多指标不足以在国家一级作出决定。提出在综合分析环境、经济和社会指标的基础上,确定国民经济发展趋势。发展指标、发展标准和发展要素的选择标准是建立可持续发展机制的主要前提。指标系统以统计信息为基础,可以确定经济的综合可持续性指数。提出了可持续发展的三级指标体系和综合指标体系。该方法可以评估乌克兰不同地区的发展,并确定当前的趋势。它允许监测由于复杂的指标系统而产生的动态变化。
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引用次数: 3
The impact of environmental determinants of sustainable agriculture on country food security 可持续农业的环境决定因素对国家粮食安全的影响
IF 0.6 Q4 ENGINEERING, ENVIRONMENTAL Pub Date : 2018-01-01 DOI: 10.1504/IJETM.2018.100580
Y. Bilan, S. Lyeonov, N. Stoyanets, A. Vysochyna
The Food Security Index (consists of 19 indicators) was developed to assess the impact of environmental determinants on the state of food security. The formation of the integral index was carried out using principal component analysis. The proportions of the inclusion of each of the 19 indicators are based on the eigenvalues of the 1st principal component that explains 48.37% of the variation. Identification of the environmental factors influence on the Food Security Index was carried out using panel data regression analysis (random-effect GLS regression) for the sample of 28 post socialistic countries for the period 2000-2016. Empirical results reveal a statistically significant positive effect of most ecological determinants of sustainable agro-management on food security. While the impact of growth in coal use for electricity and fossil fuels is insignificant. However, the increase in the consumption of electricity and growth of unproductive energy losses negatively affects the food security.
制定粮食安全指数(由19个指标组成)是为了评估环境决定因素对粮食安全状况的影响。利用主成分分析的方法确定了综合指标。19个指标中每个指标的包含比例基于第一主成分的特征值,该特征值解释了48.37%的变化。利用面板数据回归分析(随机效应GLS回归)对2000-2016年28个后社会主义国家的样本进行了环境因素对粮食安全指数的影响识别。实证结果表明,可持续农业管理的大多数生态决定因素对粮食安全具有统计学上显著的积极影响。而电力和化石燃料用煤增长的影响是微不足道的。然而,电力消费的增加和非生产性能源损失的增加对粮食安全产生了负面影响。
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引用次数: 33
Identification and characterisation of two novel azo dye degrading microorganisms from contaminated ground water and soil of a textile mill 两种新型偶氮染料降解微生物的鉴定与表征
IF 0.6 Q4 ENGINEERING, ENVIRONMENTAL Pub Date : 2018-01-01 DOI: 10.1504/IJETM.2018.10019118
S. Mohanty, U. Longjam, Priyanka J. Patel, M. K. Swamy, Anuradha Maniyam
Bacterial isolates were tested for biodegradability potential of azodyes. S1 and S2 isolate effectively decolorised all azodyes tested within 72 hours. These isolates were later characterised as Achromobacter and Bacillus sp. The resistance traits on plasmid were evidenced from curing experiments. Sodiumdodecyl sulphate (SDS) and rifampicin (9 mg/ml) was found to be most effective curing agent. Achromobacter sp. was positive for tryptophanase, indole and citrate permease with ability to ferment glucose and produced gas. While, S2 showed the presence of tryptophanase, but found negative for the urease. Both the isolates were able to sustain salt concentration between 4%-10% suggesting moderately halotolerant. Bacillus sp. exhibited tolerance to heavy metal, zinc and arsenic up to 8 M; copper, cobalt and nickel to an extent of 500 mM. Efficient decolorising activity, heavy metal and salt tolerance capability indicates that isolated strains can be utilised effectively for the treatment of effluents in the dye industries.
对分离的细菌进行了偶氮染料的生物降解潜力测试。S1和S2分离物在72小时内有效地脱色了所有的偶氮。这些分离物后来被鉴定为无色杆菌和芽孢杆菌。质粒上的抗性特性通过固化实验得到证实。硫酸钠(SDS)和利福平(9mg /ml)是最有效的固化剂。色氨酸酶、吲哚和柠檬酸渗透酶呈阳性,具有发酵葡萄糖和产气的能力。S2显示色氨酸酶存在,但脲酶呈阴性。这两种菌株都能维持4%-10%的盐浓度,表明具有中等的耐盐性。芽孢杆菌对重金属、锌、砷的耐受性达8 M;铜、钴和镍的深度可达500毫米。高效的脱色活性、重金属和耐盐能力表明,分离菌株可有效地用于染料工业废水的处理。
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引用次数: 1
Economic and social dimensions of ecological conflicts: root causes, risks, prevention and mitigation measures 生态冲突的经济和社会层面:根源、风险、预防和缓解措施
IF 0.6 Q4 ENGINEERING, ENVIRONMENTAL Pub Date : 2018-01-01 DOI: 10.1504/IJETM.2018.10022293
V. Sabadash, P. Denysenko
An effective management system of natural resources use and the implementation of the principles of sustainable development requires, above all, the improvement of the concepts of environmental services and their more effective use. The scarcity of natural resources, their uneven distribution, and unequal access, as well as unfavourable economic, social and cultural-historical factors often underlie ecological conflicts. A critical analysis of the economic, environmental and social contradictions in society as well as of the main theoretical and methodological aspects of ecological conflicts helps to determine the importance of ecological and economic security needs. This paper reveals the need for market agents to develop a consolidated approach to the prevention and resolution of ecological conflicts.
自然资源利用的有效管理制度和可持续发展原则的执行首先需要改进环境服务的概念并更有效地利用它们。自然资源的稀缺、分布不均、获取不平等以及不利的经济、社会和文化历史因素往往是生态冲突的根源。对社会中的经济、环境和社会矛盾以及生态冲突的主要理论和方法方面进行批判性分析,有助于确定生态和经济安全需求的重要性。本文揭示了市场主体需要制定一种综合方法来预防和解决生态冲突。
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引用次数: 3
Laboratory analysis of Marshall parameters of dense bituminous macadam mix using waste materials 废料密沥青碎石混合料马歇尔参数的实验室分析
IF 0.6 Q4 ENGINEERING, ENVIRONMENTAL Pub Date : 2018-01-01 DOI: 10.1504/IJETM.2018.10019132
Shubham Bansal, A. Misra, T. Chopra, Purnima Bajpai
One of the main purposes of this research is to determine the effect of incorporating waste plastic bottles, i.e., polyethylene terephthalate (PET) and waste rubber tyres on the engineering properties of dense bituminous macadam mix. The strength, flow and volumetric properties of DBM mixes, which includes various percentages of plastic waste (4%, 6%, 8% and 10%) and rubber waste (5%, 10% and 15%) were calculated and assessed with laboratory tests. To analyse the effect on stability, flow and volumetric characteristics of DBM mix of waste plastic material and rubber tyres experiments were performed. Marshall tests were performed to estimate the strength and flow of the modified DBM mix. The experiments demonstrate that by partial replacement of 8% bitumen with plastic, about 15% increment in strength and by 10% replacement of bitumen with rubber material, about 49% increase in strength can be achieved as compared with a conventional mix.
本研究的主要目的之一是确定废塑料瓶,即聚对苯二甲酸乙二醇酯(PET)和废橡胶轮胎对密实沥青碎石混合料工程性能的影响。通过实验室测试,计算并评估了DBM混合料的强度、流动和体积性能,DBM混合料包括不同比例的塑料废物(4%、6%、8%和10%)和橡胶废物(5%、10%和15%)。为分析废塑料与橡胶轮胎混合DBM对其稳定性、流动性和体积特性的影响,进行了试验研究。进行了马歇尔试验,以估计改性DBM混合物的强度和流动。实验表明,用8%的塑料代替部分沥青,强度可提高15%左右,用橡胶材料代替10%的沥青,强度可比常规混合料提高49%左右。
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引用次数: 5
The impact of economic performance on environmental quality in developing countries 发展中国家经济绩效对环境质量的影响
IF 0.6 Q4 ENGINEERING, ENVIRONMENTAL Pub Date : 2018-01-01 DOI: 10.1504/IJETM.2018.10022295
L. Sineviciene, O. Kubatko, Oleksandr Derykolenko, O. Kubatko
The relationship between environmental quality and economic performance using a generalised least squares (GLS) regression framework is assessed for 15 developing countries during the period 2000-2010. The Environmental Performance Index (EPI) is used as an indicator of environmental quality. The results do not show an inverted U-shape relationship or the effect of the environmental Kuznets curve (EKC). Concerning the environmental performance, the GDP per capita and energy use have the most significant explanatory power on pollution for developing countries. The other economic determinants of pollution are trade openness, financial development, foreign direct investment, and urbanisation are of indirect influence because they are strongly correlated with economic growth and energy use. The obtained results show a positive and statistically significant relationship between economic performance and environmental quality, and empirically an increase in GDP per capita by USD 100 improves EPI in absolute value by 0.1. Energy use (kg of oil equivalent per capita) is statistically significant and negatively correlated with environmental performance. Thus, 100 kilograms of oil equivalent per capita reduces EPI in absolute value by 0.2. One of the policy implications of research is to stimulate economic development, while reducing oil consumption.
利用广义最小二乘(GLS)回归框架对2000-2010年期间15个发展中国家的环境质量与经济绩效之间的关系进行了评估。环境绩效指数(EPI)被用作环境质量的指标。结果不显示倒u型关系或环境库兹涅茨曲线(EKC)的影响。在环境绩效方面,人均国内生产总值和能源使用对发展中国家的污染具有最显著的解释力。污染的其他经济决定因素是贸易开放、金融发展、外国直接投资和城市化,它们具有间接影响,因为它们与经济增长和能源使用密切相关。所得结果表明,经济绩效与环境质量之间存在统计学上显著的正相关关系,人均GDP每增加100美元,EPI的绝对值就会提高0.1。能源使用(人均公斤油当量)在统计上是显著的,并且与环境绩效呈负相关。因此,人均100公斤石油当量使扩大指数的绝对值减少0.2。研究的政策含义之一是刺激经济发展,同时减少石油消耗。
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引用次数: 8
Is phosphorus really a scarce resource 磷真的是稀缺资源吗
IF 0.6 Q4 ENGINEERING, ENVIRONMENTAL Pub Date : 2018-01-01 DOI: 10.1504/IJETM.2018.10022298
J. Köhn, D. Zimmer, P. Leinweber
Phosphorus is not a physically scarce resource but more than 90% of the stock is not technically extractable today. Economic scarcity takes this and other aspects into consideration. The price spike in 2007/8 induced a scientific debate on a 'peak P' similar to the dispute on the oil peak back in the 1970s. The processing of phosphate rock to P fertilisers fed the Green Revolution and, therefore, was seen a chance to overcome the hunger on earth. Thus, the expansive use of P had serious negative impacts to the reserve stock of P. However, if and only if business sees a certain price margin as a threshold beyond P cannot be explored and marketed with benefit for agricultural use, in this particular case only P gets really a scarce resource. The peak price shock in P had almost other reasons than a real physical shortcoming in the reserve stocks. Moreover, if a certain price threshold would be exceeded and agriculture and industry still demand P, recycling technologies and better management practices are already at hand to supply enough P for sustaining food production. Additionally, a consequent recycling of P rich wastes and usage of P accumulated in soils and sediments cannot only set limits for P pricing but also revoke postulated P peak and P scarcity.
磷并不是一种稀缺资源,但目前超过90%的磷储量在技术上是不可提取的。经济稀缺性考虑到了这一点和其他方面。2007/8年的油价飙升引发了一场关于“峰值P”的科学辩论,类似于上世纪70年代关于石油峰值的争论。将磷矿加工成磷肥的过程催生了绿色革命,因此被视为克服地球饥饿的机会。因此,磷的广泛使用对磷的储备存量产生了严重的负面影响。然而,当且仅当企业将一定的价格边际视为超出磷的门槛时,就无法开发和销售具有效益的农业用途,在这种特殊情况下,只有磷才是真正的稀缺资源。P股的峰值价格冲击几乎有其他原因,而不是储备股票的实际缺陷。此外,如果超过一定的价格门槛,农业和工业仍然需要磷,回收技术和更好的管理实践已经触手可及,可以提供足够的磷来维持粮食生产。此外,富磷废物的循环利用和土壤和沉积物中积累的磷的利用不仅为磷定价设定了限制,而且还取消了假定的磷峰值和磷稀缺。
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引用次数: 2
National culture and attitude to ecology: on the example of Ukraine and Mongolia 民族文化与生态态度:以乌克兰和蒙古为例
IF 0.6 Q4 ENGINEERING, ENVIRONMENTAL Pub Date : 2018-01-01 DOI: 10.1504/IJETM.2018.10022296
Blyznyuk Tetyana, Gavaa Batkhuu, Lepeyko Tetyana
Inefficiency of the economic system and specific features of the national culture are the main causes of environmental crises. This study identifies relationship between the characteristics of the national culture of a country and its attitude to the environment in Ukraine and Mongolia. Hofstede's method is used comparing the main cultural parameters. The two cultural parameters of Hofstede's approach ('masculinity - femininity' and 'long-term orientation - short-term orientation') largely explain the attitude to ecology in these countries; environmental indicators in Ukraine and Mongolia are suggested for these parameters. This analysis indicates that both countries face an environmental crisis. At the same time, prerequisites for ecological revival exist in the national cultures; they indicate readiness to changes in attitudes towards ecology.
经济体制的低效和民族文化的特殊性是造成环境危机的主要原因。在乌克兰和蒙古,本研究确定了一个国家的民族文化特征与其对环境的态度之间的关系。Hofstede的方法用于比较主要的文化参数。Hofstede方法的两个文化参数(“男性气质-女性气质”和“长期取向-短期取向”)在很大程度上解释了这些国家对生态学的态度;为这些参数建议了乌克兰和蒙古的环境指标。这一分析表明,两国都面临着环境危机。同时,民族文化存在着生态复兴的先决条件;它们表明人们愿意改变对生态的态度。
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引用次数: 1
期刊
International Journal of Environmental Technology and Management
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