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Recycling and sustainable environmental practices of household tea waste 家庭茶叶废弃物的回收和可持续环境实践
IF 0.6 Q4 Environmental Science Pub Date : 2019-01-01 DOI: 10.1504/ijetm.2019.10026429
A. Atiqah, M. Ansari, R. Keresahnia, S. Alkhadher, A. Al-Amin
Tea wastes contain a group of important organic substances disposed of in a considerable amount to the environment without any treatment after the preparation of tea. Generally, uncontrolled release of these wastes has increased environmental concern mainly to the aquatic environment in recent years. In this study, an experiment of tea waste green composites was outlined to provide more knowledge and findings in utilising the tea waste as reinforcement. The current experimental investigation focuses mainly on the mechanical and characterisation of poly (lactic acid) (PLA) filled with household tea wastes (TW) green composites. The morphology properties of PLA with tea waste composites were characterised using scanning electron microscopy (SEM) and X-ray diffraction (XRD) methods. The results show that the addition of tea waste improved the mechanical properties of the composite nevertheless the crystalline structure was reduced due to the presence of tea waste particles. The study findings highly recommended that tea wastes should be environmentally managed and recycled for better utilisation as an energy source or in other valuable application to reduce the impact on environmental pollution.
茶叶废弃物中含有一组重要的有机物质,在茶叶制备后未经任何处理,大量排放到环境中。一般来说,近年来,这些废物的无节制排放增加了对环境的关注,主要是水生环境。本研究概述了一项茶叶废弃物绿色复合材料的实验,为利用茶叶废弃物作为增强材料提供更多的知识和发现。目前的实验研究主要集中在聚乳酸(PLA)填充生活茶渣(TW)绿色复合材料的力学性能和表征上。采用扫描电子显微镜(SEM)和x射线衍射仪(XRD)对茶渣复合PLA的形貌进行了表征。结果表明,茶渣的加入改善了复合材料的力学性能,但由于茶渣颗粒的存在,使复合材料的结晶结构降低。研究结果强烈建议对茶叶废料进行环境管理和回收,以便更好地利用作为能源或其他有价值的应用,以减少对环境污染的影响。
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引用次数: 2
Clarifying the value relevance of voluntary carbon reporting: the case of Malaysian carbon-intensive industries 澄清自愿碳报告的价值相关性:以马来西亚碳密集型工业为例
IF 0.6 Q4 Environmental Science Pub Date : 2019-01-01 DOI: 10.1504/ijetm.2019.10026433
Noor Raida Abd Rahman, Siti Zaleha Abdul Rasid, R. Basiruddin
This study aimed to empirically test the value relevance of voluntary carbon reporting (VCR) by Malaysian public listed companies operating in carbon-intensive industries from 2010 to 2016. Using panel data regression models, this study considered the impact of VCR from both, accounting and market-based perspectives. The quality of VCR is measured using the content analysis of disclosure indexes adapted from a list of disclosure items that were provided in various global warming, climate change, greenhouse gases, and carbon reporting guidelines, standards and frameworks. The finding indicated that on average, the quality of VCR was still low compared to the overall potential score. The findings also revealed that VCR generates a negative relationship with return on assets (ROA) and earnings per share (EPS). Nevertheless, VCRQ does not influence return on equity and Tobin's Q. This study has implications on both the policy and practice of organisations seeking to improve VCR practices.
本研究旨在实证检验2010 - 2016年马来西亚碳密集型行业上市公司自愿碳报告(VCR)的价值相关性。本研究使用面板数据回归模型,从会计和市场的角度考虑VCR的影响。VCR的质量是通过披露指数的内容分析来衡量的,这些披露指数是根据各种全球变暖、气候变化、温室气体和碳报告指南、标准和框架中提供的披露项目列表改编的。研究结果表明,与总体潜在评分相比,VCR的平均质量仍然较低。研究结果还显示,VCR与资产回报率(ROA)和每股收益(EPS)呈负相关。然而,VCRQ并不影响股本回报率和托宾q。本研究对寻求改进VCR实践的组织的政策和实践都有启示。
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引用次数: 2
The use of sewage sludge as manure for plant crops: a study of Spinacia oleracea accumulation of heavy metals and heavy metal bio-available fractions fertilised by sewage sludge 污水污泥作为植物作物肥料的使用:污水污泥施肥对菠菜重金属积累和重金属生物有效组分的研究
IF 0.6 Q4 Environmental Science Pub Date : 2019-01-01 DOI: 10.1504/ijetm.2019.10026644
A. Akinsanya, J. Odiyo, Elizabeth O. Popoola, T. Msagati
Spinach vegetables (Spinacia oleracea) were planted and dry sludge was applied as manure. At maturity, samples of the leaves were taken. The soil, sludge and leaf samples were analysed for total heavy metal content (Cr, Cu, Fe, Mn, Zn, Cd, Co, Ni, Pb and Al) using ICP/OES. Leaf samples were also analysed for the different forms or species of heavy metals. Cu was found to have the lowest concentration (0.0009 mg kg−1) while Fe registered the highest concentration (378.9 mg kg−1). The speciated heavy metals were found to have their highest concentration at 136.8 mg kg−1 for the exchangeable fraction (F1) of Fe metal and the lowest concentration of 0.0005 mg kg−1 for the residual fraction (F5) of Pb metal. The Study revealed that there is a possibility of an uptake of heavy metals by the vegetable leaves from the sludge through the soil.
种植菠菜蔬菜(Spinacia oleracea),施用干污泥作为肥料。成熟时,采集叶片样品。利用ICP/OES分析了土壤、污泥和叶片样品的总重金属含量(Cr、Cu、Fe、Mn、Zn、Cd、Co、Ni、Pb和Al)。还分析了叶片样品中不同形式或种类的重金属。铜的浓度最低(0.0009 mg kg - 1),铁的浓度最高(378.9 mg kg - 1)。结果表明,各形态重金属在Fe金属交换部分(F1)的浓度最高,为136.8 mg kg - 1, Pb金属残留部分(F5)的浓度最低,为0.0005 mg kg - 1。研究表明,蔬菜叶片有可能通过土壤从污泥中吸收重金属。
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引用次数: 0
Sustainability of marine park ecotourism in Malaysia: predicting environmentally responsible behaviour among millennial tourists 马来西亚海洋公园生态旅游的可持续性:预测千禧一代游客的环境负责行为
IF 0.6 Q4 Environmental Science Pub Date : 2019-01-01 DOI: 10.1504/ijetm.2019.10026650
Siti Intan Nurdiana Wong Abdullah, Zaiton Samdin, J. Ho, S. Ng, K. Phuah
Promoting environmentally responsible behaviours (ERB) in ecotourism destinations such as marine park islands has become an important strategy because of growing concern on global depletion of natural environmental resources, but few studies have been able to provide a comprehensive explanation. This study aims to examine the antecedents of ERB among millennial tourists by proposing an extended model of ERB. Cross-sectional data from 386 cases were analysed using structural equation modelling and the results indicate that image, attitude, knowledge and consumption values have positive influence on intentions. Destination image and sound environmental knowledge turned out to be the main influences on their intention, with attitude and consumption values playing a minor role. This study also confirms that intention is a strong precursor of behaviour. This paper suggests the importance of providing educational programs as well as practising informative green marketing campaigns to encourage millennial tourists to behave responsibly.
随着全球自然环境资源日益枯竭的问题日益受到关注,在海洋公园岛屿等生态旅游目的地推广对环境负责的行为已成为一项重要的战略,但很少有研究能够提供全面的解释。本研究旨在通过提出一个扩展模型,探讨千禧一代游客的返工行为。利用结构方程模型对386例患者的横断面数据进行分析,结果表明形象、态度、知识和消费价值观对意向有正向影响。目的地形象和良好的环境知识是影响游客意愿的主要因素,态度和消费价值观是次要因素。这项研究还证实,意图是行为的强烈前兆。本文提出了提供教育计划和实施信息绿色营销活动的重要性,以鼓励千禧一代游客负责任的行为。
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引用次数: 2
Development of natural fibre for environmental and sustainable advancement 开发天然纤维,促进环境和可持续发展
IF 0.6 Q4 Environmental Science Pub Date : 2019-01-01 DOI: 10.1504/ijetm.2019.10026421
A. Atiqah, M. Ansari, M. Zahidi, S. Begum, Z. Yahya, S. Alkhadher
The increasing attention on renewable resources for a sustainable environment has led to the expansion in the development of high-performance products made from natural resources. Natural fibres that are diffused in the environment in abundance are economical, making this characteristic a value-added engineering, as they exhibit lower cost and can produce lighter composites, as compared to the existing fibreglass reinforced polymer composites. In this study, the involvement of kenaf fibre in chemical treatment on morphological and mechanical properties of the thermoset polyurethane (PU)-(PUKf) composites was firstly proposed and trialled. The results of chemical treatment on kenaf fibre highlight the improvement on the impact strength although the hardness of kenaf composites is reduced. This is compared with different samples, which are pure thermoset PU and kenaf fibre without chemical treatment. Overall, the developments of natural fibre in engineering and energy sectors could significantly enhance the reduction of solid waste and environmental pollution.
为了可持续发展的环境,人们越来越关注可再生资源,这导致了由自然资源制成的高性能产品的开发扩大。与现有的玻璃纤维增强聚合物复合材料相比,在环境中大量扩散的天然纤维是经济的,使这一特性成为一项增值工程,因为它们具有更低的成本,可以生产更轻的复合材料。本研究首次提出了红麻纤维参与化学处理对热固性聚氨酯(PU)-(PUKf)复合材料形态和力学性能的影响。对红麻纤维进行化学处理的结果表明,虽然红麻复合材料的硬度降低,但其冲击强度有所提高。这是比较不同的样品,这是纯热固性PU和未经化学处理的红麻纤维。总的来说,天然纤维在工程和能源部门的发展可以大大促进减少固体废物和环境污染。
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引用次数: 1
Quantitative analysis of sound absorption properties of plants in indoor environment for enabling sustainable practices 室内环境中植物吸声特性的定量分析,以实现可持续实践
IF 0.6 Q4 Environmental Science Pub Date : 2019-01-01 DOI: 10.1504/ijetm.2019.10026415
N. Baruah, Satyaki Sarkar, B. Roy, R. Sinha
This paper showcases the results of the sound attenuation properties of some plants with a soil substrate for use as green sound absorbers in an indoor space. The plants used in this experiment were needed to survive in an indoor environment, hence only tropical, thermophilic plants which could grow in high humidity and warm temperatures with indirect sunlight were selected. An impedance tube of 100 mm dia. was used to calculate the direct incidence acoustic absorption coefficient of the plants and larger samples were tested within a reverberation chamber. The soil substrate used was a high porosity and low-density sample of perlite and coconut fibres. The results show that ferns and baby tears were good absorbers along with the soil substrate, whereas begonia was a better absorber at the lower and higher frequencies. The decibel drop by the fern with soil substrate is the highest with a decrease of frequency and the lowest is by Green Ivy which is due to morphological conditions.
本文展示了一些植物在土壤基质下作为室内绿色吸声器的吸声特性的结果。本实验中使用的植物需要在室内环境中生存,因此只选择了可以在高湿度和温暖温度下生长的热带嗜热植物。直径100毫米的阻抗管。用于计算植物的直接入射声吸收系数,并在混响室内测试了较大的样品。使用的土壤基质是高孔隙率和低密度的珍珠岩和椰子纤维样品。结果表明,蕨类植物和荆芥对土壤基质有较好的吸收作用,而秋海棠对低频和高频吸收效果较好。有土壤基质的蕨类植物的降噪幅度最大,频率降低,而青藤的降噪幅度最小,这与形态条件有关。
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引用次数: 1
Identification of the malodour source in a complex office environment using solid-phase microextraction and gas chromatography 用固相微萃取和气相色谱法鉴别复杂办公环境中的恶臭来源
IF 0.6 Q4 Environmental Science Pub Date : 2019-01-01 DOI: 10.1504/ijetm.2019.10023673
O. Trhlíková
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引用次数: 1
Analysis of urban water quality trends for effective reservoir sedimentation management in Cameron Highland 金马伦高原水库有效沉积管理的城市水质趋势分析
IF 0.6 Q4 Environmental Science Pub Date : 2019-01-01 DOI: 10.1504/ijetm.2019.10026418
N. M. Noh, L. Sidek, S. H. Haron, A. Puad, Z. Selamat, Azwin Zailti Abd Razad, C. Fai
Water quality in Cameron Highlands has significantly diminished due to agricultural activities. This research aims to analyse water quality in the urban and agricultural area by conducting water sampling and in situ analysis. Water quality index (WQI), total nitrogen (TN) and total phosphorus (TP) were calculated and compared among different areas. Results for WQI shows that water quality at W7 deteriorates at class IV (33.5) compared to class II for another agriculture area. Meanwhile, another results showed that the WQ_02_AG transported significantly higher (14.9 mg/L) loads of TN than the urban area, but the phosphorus load was considerably lower (1.58 mg/L). Results for the urban area are slightly polluted and unsuitable for recreational purpose. In agricultural areas, water quality deteriorates due to sediment transport and nutrient infusion caused by agricultural activities. Therefore, powerful agricultural management practices for effective reservoir sedimentation management as one of the non-structural measures are recommended.
由于农业活动,金马仑高地的水质明显下降。本研究的目的是通过对城市和农业地区的水质进行采样和原位分析。计算并比较了不同区域的水质指数(WQI)、总氮(TN)和总磷(TP)。WQI的结果表明,与另一个农业区的II级相比,W7级的水质在IV级(33.5)恶化。与此同时,WQ_02_AG的TN转运量显著高于市区(14.9 mg/L),而磷转运量显著低于市区(1.58 mg/L)。市区的污染程度较轻,不宜作娱乐用途。在农业地区,由于农业活动引起的泥沙输送和养分输注,水质恶化。因此,建议采取强有力的农业管理措施,作为有效的水库沉积管理措施之一。
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引用次数: 0
Redefining the value proposition through green promotions and green corporate image in the era of Industrial Revolution 4.0: a study of Gen Y green consumers in Malaysia 工业革命4.0时代通过绿色促销和绿色企业形象重新定义价值主张:对马来西亚Y世代绿色消费者的研究
IF 0.6 Q4 Environmental Science Pub Date : 2019-01-01 DOI: 10.1504/ijetm.2019.10026655
Vathana Bathmanathan, J. Rajadurai
Industrial Revolution 4.0 is shaping the future of purchasing behaviour due to digital disruption. Digital disruption ends conventional business structures. This study aimed to analyse the relationship between green promotion (GP) and Gen Y green purchasing decisions (GPD) in Malaysia. It also aimed to incorporate a new strategy by introducing green corporate image as a variable to identify if it mediates the relationship between GP and GPD and explore green promotion and green corporate image as perceived by Gen Y consumers. A qualitative approach was used in which focus groups were interviewed to refine the questionnaire. Secondly, interviewing data was analysed by using structural equation modelling to determine the significance of green promotions and green corporate image on Gen Y purchasing behaviour. The findings of this study will help manufacturers to modify their promotional strategies and assist policymakers to align the 11th Malaysia Plan with Industrial Revolution 4.0 goals.
由于数字化的颠覆,工业革命4.0正在塑造未来的购买行为。数字化颠覆终结了传统的商业结构。本研究旨在分析马来西亚绿色推广(GP)与Y世代绿色购买决策(GPD)之间的关系。此外,还将绿色企业形象作为变量引入到GP和GPD之间的中介关系中,并探讨Y一代消费者对绿色宣传和绿色企业形象的看法,从而引入新的战略。采用了定性方法,对焦点小组进行访谈以完善问卷。其次,运用结构方程模型对访谈数据进行分析,确定绿色促销和绿色企业形象对Y世代购买行为的影响。这项研究的结果将有助于制造商修改他们的促销策略,并协助政策制定者使第11马来西亚计划与工业革命4.0目标保持一致。
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引用次数: 6
Evaluating the impact of implementing Minimum Energy Performance Standards appliance regulation in Malaysia 评估在马来西亚实施最低能源表现标准电器法规的影响
IF 0.6 Q4 Environmental Science Pub Date : 2019-01-01 DOI: 10.1504/ijetm.2019.10026417
S. F. Salleh, M. M. N. Roslan, A. M. Isa
Malaysia has implemented the Minimum Energy Performance Standards (MEPS) since 2013 to promote energy efficiency. This study collected sales data from 2013 to 2015 to estimate the sales volume of MEPS-compliant appliances (air conditioner, refrigerator, fan, television, and lamp), and subsequently determine the total electricity consumption and saving. It was found that the local market is already saturated with 5-star rated televisions and fans, while the lamp market is dominated by compact fluorescent lamps (CFL) with efficacy range of 50-55 lumens/W. By the end of 2015, the total cumulative electricity saving gained is 2,685 GWh, which translates to total cost saving of MYR 850 million and fossil carbon emission reduction of 1,726 ktCO2eq. These multiple positive impacts clearly demonstrate the effectiveness of MEPS in Malaysia. Hopefully, this success story would motivate Malaysia and other developing countries to unlock more opportunities in the future with higher uptake of energy efficiency interventions.
马来西亚自2013年起实施最低能源绩效标准(MEPS),以提高能源效率。本研究收集2013年至2015年的销售数据,估算符合meps标准的电器(空调、冰箱、风扇、电视、灯)的销量,进而确定总耗电量和节电。调查发现,本地市场的5星级电视和风扇已经饱和,而灯具市场则以50-55流明/瓦的紧凑型荧光灯(CFL)为主。截至2015年底,累计节电总量为2685吉瓦时,相当于节约总成本8.5亿林吉特,减少化石碳排放1726千吨二氧化碳当量。这些多重积极影响清楚地证明了马来西亚环境保护计划的有效性。希望这个成功的故事能够激励马来西亚和其他发展中国家在未来通过更多地采用能源效率干预措施来释放更多的机会。
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引用次数: 2
期刊
International Journal of Environmental Technology and Management
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