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Predicting the Burning Rate of Thermally Thin Nylon Using TGA (Thermo Gravity Analysis) and DSC (Differential Scanning Calorimeter) 热重分析(TGA)和差示扫描量热计(DSC)预测热薄尼龙燃烧速率
Pub Date : 2018-01-01 DOI: 10.4172/2252-5211.1000343
Sarat Ganti
Given the importance of thermally thin materials in minimizing the fire accidents different properties of Nylon added with montmorillonite (MMT) clay of 5% (thermally thin) are examined in this paper. A simple first order reaction model is considered to minimize the number of unknown parameters. Different Kinetic, Physical, and thermodynamic properties are obtained from DSC and TGA data and are compared for both thermally thick and thin rubbers thereby, proving the importance of thermally thin Nylon.
考虑到热薄材料对减少火灾事故的重要性,研究了添加5%热薄蒙脱土(MMT)的尼龙的不同性能。考虑一个简单的一阶反应模型,以尽量减少未知参数的数量。通过DSC和TGA数据得到了不同的动力学、物理和热力学性质,并对热厚和热薄橡胶进行了比较,从而证明了热薄尼龙的重要性。
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引用次数: 0
Legal Status of the Strategic Environmental Assessment (SEA), Practice of Application and Challenges in Pakistan 巴基斯坦战略环境评价的法律地位、应用实践与挑战
Pub Date : 2018-01-01 DOI: 10.4172/2252-5211.1000341
Farasat Ali, Imran Khan, Waleed Asghar, Zhenmei Liao, S. Beghum, W. Douven, K. Khan
This study addresses legal status of strategic environmental assessment (SEA), practice of application and challenges in Pakistan. The source of data was based upon a review of the literature, as well as structured and semi structured interviews with selected experts and consultants of the various backgrounds of Pakistan. This study shows that Pakistan transposed SEA in their national and provincial Environmental Protection Acts except for Punjab province. However Pakistan conducted a few SEA studies including SEA studies of the Azad Jammu and Kashmir Hydropower Plans, Gilgit city master plan, Poverty and Social Assessment of Trade and Transport Sector Reforms in Pakistan and the Cumulative and Induced Impact Assessment study of the Upper Indus River Basin (UIRB) of Pakistan. The main challenges for SEA in Pakistan include: devolution environment from federal to provinces, less technical staff for SEA studies, weak knowledge, and training about SEA in the Environmental Protection Agencies, weak political priority for environmental, weak environmental screening and scoping process, lack of financial resources for primary data collection and SEA studies. Despite the fact that the SEA is implemented in rudimentary stages in Pakistan, few SEA studies conducted in Pakistan only for donor-funded policies, plans, and programmes.
本研究探讨了巴基斯坦战略环境评估的法律地位、应用实践和挑战。数据来源基于对文献的审查,以及对巴基斯坦不同背景的选定专家和顾问的结构化和半结构化访谈。本研究表明,除旁遮普省外,巴基斯坦在其国家和省级环境保护法中置换了SEA。然而,巴基斯坦进行了一些环境影响评估研究,包括对阿扎德查谟和克什米尔水电计划、吉尔吉特城市总体规划、巴基斯坦贸易和运输部门改革的贫困和社会评估以及对巴基斯坦印度河上游流域的累积和诱发影响评估研究。巴基斯坦环境评估面临的主要挑战包括:将环境问题从联邦政府下放到各省,环境评估研究的技术人员较少,环境保护机构对环境评估的知识和培训薄弱,环境问题的政治优先性不强,环境筛选和范围界定过程薄弱,缺乏用于主要数据收集和环境评估研究的财政资源。尽管巴基斯坦在基本阶段实施了环境评估,但在巴基斯坦仅针对捐助者资助的政策、计划和方案进行的环境评估研究很少。
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引用次数: 4
Design and Development of Compost Bin for Indian Kitchen 印度厨房堆肥箱的设计与开发
Pub Date : 2018-01-01 DOI: 10.4172/2252-5211.1000323
S. Jayaprakash, Lohit Hs, Abhilash Bs
Composting is the decomposition of organic waste by microorganisms under controlled conditions. Organic waste, which forms a significant part of municipal solid waste, has caused increasing environmental concerns. It is estimated that around 50 percent it can be composted. Instead, most of it is landfilled and incinerated. By composting organic waste, we can preserve resources and produce a valuable by-product that can be used as locally produced fertilizer. The existing compost bins have few challenges which are difficult to handle such as messy and smelly compost, time-consuming process (30-45 days), prone to insects and rodents and hard to clean. In addition, some of them release greenhouse gases. Cost issues are there with few automatic and high-end compost bins. This project aims at designing a compost bin for Indian household kitchen, which is easy to use, odor free, ergonomic in nature and visually appealing. Designed Compost bin consists of a separate chamber for compost starter, composting chamber consisting of a mixing blade (runs with help of a DC motor and rechargeable batteries), air filter setup and a compost collection tray. Rechargeable batteries used in the product makes it portable. The air filter contains pellets made out of Azadirachta Indica (neem) and Gomaya (Cow dung) which are used to keep away bad odor and acts as a disinfectant. Simple mechanism allows the user to maintain cleanliness. A video was made of the working of the compost bin for user feedback. Users appreciated the product for its colour, aesthetics, easy mechanism, odour free, easy handling, easy maintenance etc.
堆肥是指微生物在受控条件下对有机废物进行分解。有机废物是城市固体废物的重要组成部分,已引起越来越多的环境问题。据估计,其中约有50%可以制成堆肥。相反,大部分垃圾被填埋和焚烧。通过堆肥有机废物,我们可以保护资源,并产生一种有价值的副产品,可以用作当地生产的肥料。现有的堆肥箱几乎没有难以处理的挑战,如堆肥杂乱和气味,耗时(30-45天),容易滋生昆虫和啮齿动物,难以清洁。此外,其中一些还会释放温室气体。成本问题是很少有自动和高端的堆肥箱。本项目旨在为印度家庭厨房设计一种易于使用,无异味,符合人体工程学的堆肥箱,并具有视觉吸引力。设计的堆肥箱包括一个单独的堆肥启动室,堆肥室由混合叶片组成(在直流电机和可充电电池的帮助下运行),空气过滤器设置和堆肥收集盘。该产品采用可充电电池,便于携带。空气过滤器含有印楝树和牛粪制成的颗粒,用来去除难闻的气味,并起到消毒剂的作用。简单的机构可以使用户保持清洁。制作了堆肥箱工作的视频,供用户反馈。用户对该产品具有颜色、美观、操作简单、无异味、操作方便、维护方便等特点表示赞赏。
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引用次数: 9
Investigation into the Recovery of Valuable Metals from Waste Mobile Phone Printed Circuit Boards (PCBs): An Australian Case Study 从废手机印刷电路板(pcb)中回收有价金属的研究:以澳大利亚为例
Pub Date : 2018-01-01 DOI: 10.4172/2252-5211.1000358
M. Ghodrat, M. Rashidi, B. Samali
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引用次数: 0
Assessment of Hospital Solid Waste Management in Tamale Metropolis: A Case Study of Tamale West and Central Hospitals Tamale大都市区医院固体废物管理评价——以Tamale西部医院和中心医院为例
Pub Date : 2018-01-01 DOI: 10.4172/2252-5211.1000348
Prince Asante, E. Amoako, S. N. Denteh
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引用次数: 3
Misconceptions and Inappropriate Solid Waste Management in Small Towns of Ethiopia: Bule Hora Town, Oromia Region, Ethiopia 埃塞俄比亚小城镇的误解和不适当的固体废物管理:埃塞俄比亚奥罗米亚地区的蓝霍拉镇
Pub Date : 2018-01-01 DOI: 10.4172/2252-5211.1000324
Adane Sirage Ali
Solid waste challenge in developing countries, like Ethiopia, is aggravated by the malfunctioning of traditional waste management systems due to rapid development and the alarmingly increasing human population. Bule Hora Town, in Ethiopia, is among the most environmentally degraded environment due to the inappropriate traditional solid waste management system. Therefore, this study was intended to investigate the public awareness and concern to the ever worsening environmental pollution and why the traditional waste disposal systems can stay dominant in the town. Data were collected using door-to-door close-ended questionnaire by a simple random sampling technique. The findings showed that plastics and festal; fruits, chat leaves and vegetables; and metals and cans respectively made 48(+5)%, 18 (+2)% and 11 (+3)% of the solid waste pool. Variations in the awareness and concern to various environmental degradation among different age groups was clearly seen where people under the age of forty showed better understanding. Response findings showed that the dominant solid waste disposal system is open air burning (42%) followed by open field dumping (36%) showing that the current solid waste management systems is traditional and inappropriate. Moreover, 50% of the respondent above age 40 and 30% of the respondents below age 40 believe that open solid waste burning is a good and long stayed tradition; and it is also undeniable that 35% of the older people related burning of solid waste, particularly during the month of December, has a religion background, which actually is not.
在发展中国家,如埃塞俄比亚,由于快速发展和惊人的人口增长,传统的废物管理系统出现故障,使固体废物的挑战更加严重。由于传统的固体废物管理系统不适当,埃塞俄比亚的布勒霍拉镇是环境退化最严重的城市之一。因此,本研究旨在调查公众对日益恶化的环境污染的认识和关注,以及为什么传统的废物处理系统可以在该镇占据主导地位。采用简单随机抽样方法,采用上门封闭式问卷调查方式收集数据。研究结果表明,塑料与节日有关;水果、菜叶和蔬菜;金属和罐头分别占固体废物池的48(+5)%、18(+2)%和11(+3)%。不同年龄组对各种环境退化的认识和关注存在差异,其中40岁以下的人表现出更好的理解。响应结果显示,主要的固体废物处理系统是露天焚烧(42%),其次是露天倾倒(36%),表明目前的固体废物管理系统是传统的和不适当的。此外,40岁以上的受访者中有50%和40岁以下的受访者中有30%认为露天焚烧固体废物是一种良好且长期存在的传统;同样不可否认的是,35%与固体废物燃烧有关的老年人,特别是在12月份,有宗教背景,实际上不是。
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引用次数: 2
Innovative Sludge Management Techniques for Developing Nations 发展中国家的创新污泥管理技术
Pub Date : 2018-01-01 DOI: 10.4172/2252-5211.1000356
Christopher Igibah Ehizemhen, Agashua Lucia, S. Abubakar
In municipal centers of developing nations, most households are served by means of on-site public health systems like septic tanks as well unsewered toilets, besides the faecal sludges gathered from these methods are usually discarded unprocessed into the city and peri-urban environment which posing great dangers to water resources and municipal health. Contrary to wastewater administration, the development schemes to handle faecal sludges that can adapt to the prevalent situations in unindustrialized nations, have long been deserted. The authors outline the existing situation and converse on certain novel issues of faecal sludges management like the Omni Processor, reinvented toilet, Solar-Powered Poop Blaster, Power of pee prototype; Self contain toilet and sewage system, Duke's Community Stand-alone waste facility and Nanomembrane toilet or waterless toilet. At the completion cusp, cities can think about substituting sewer systems with more ecologically friendly devices.
在发展中国家的城市中心,大多数家庭通过化粪池和无下水道厕所等现场公共卫生系统提供服务,此外,从这些方法收集的粪便污泥通常未经处理就被丢弃在城市和城郊环境中,这对水资源和城市卫生构成了极大的威胁。与污水管理相反,能够适应非工业化国家普遍情况的处理粪便污泥的发展计划长期以来一直被遗弃。作者概述了目前的现状,并讨论了一些粪泥管理的新问题,如Omni处理器、改造厕所、太阳能粪便喷射器、动力小便原型;独立厕所和污水处理系统,杜克大学社区独立废物处理设施和纳米膜厕所或无水厕所。在完成的关键时刻,城市可以考虑用更环保的设备取代下水道系统。
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引用次数: 0
Development of Entrepreneurial Skill Manual on Aloe Vera Production for Training Farmers in Benue State 为培训贝努埃州农民编写的芦荟生产创业技能手册
Pub Date : 2018-01-01 DOI: 10.4172/2252-5211.1000319
Nongugwa Dt, Vincent Chidindu Asogwa
This study was on development of entrepreneurial skills manual in aloe vera production for training farmers in Benue State. Specific objectives for the study were to: identify the objectives for aloe vera production, determine the content of aloe vera production manual for achieving the objectives for farmers, determine the training methods required by trainers in teaching aloe vera production to farmers, identify the facilities required for training farmers in aloe vera production, determine the evaluation techniques for assessing farmers’ achievement of objectives of aloe vera production in Benue state. Five research questions were raised and answered; five hypotheses were formulated and tested at P ≤ 0.05 level of significance. The design for the study was survey research design. The population for the study was 201 made up of 59 lecturers from University of Agriculture Makurdi and 142 extension agents in Benue State. The entire population was involved by means of census. An instrument titled: Aloe Vera Entrepreneurial Skills Production Questionnaire (AESPQ) developed by the researchers from literature reviewed and their experience. Mean was used to answer the research questions, while t-test was used to test the null hypotheses at P ≤ 0.05 level of significance. The findings of the study revealed that: that 9 objectives of aloe vera production are required for training farmers in Benue State, 65 cluster items formed the content of aloe vera production manual for achieving the objectives for farmers in Benue State, eight methods required for training farmers in aloe vera production, 17 facilities for training farmers in aloe vera production and 6 techniques for assessing farmers achievement of the objectives for aloe vera production manual in Benue State. It was therefore recommended that Agricultural Extension agents should regularly organize seminars and workshops for training of farmers and retraining of graduates to improve their technical efficiency using this manual, researchers should use the manual emanating from this study as a reference material for further research among others.
这项研究是关于为培训贝努埃州的农民编制芦荟生产创业技能手册。研究的具体目标是:确定芦荟生产的目标,确定为农民实现目标的芦荟生产手册的内容,确定培训师向农民讲授芦荟生产所需的培训方法,确定培训农民进行芦荟生产所需的设施,确定评估贝努埃州农民实现芦荟生产目标的评估技术。提出并回答了五个研究问题;提出5个假设,在P≤0.05的显著性水平上进行检验。本研究采用调查研究设计。研究对象为201人,包括来自马库尔迪农业大学的59名讲师和贝努埃州的142名推广人员。通过人口普查,全国人口都参与其中。研究人员根据文献综述和经验编制了芦荟创业技能生产问卷(AESPQ)。采用均数回答研究问题,采用t检验在P≤0.05显著性水平下检验原假设。研究结果显示:贝努埃州培训农民需要9个芦荟生产目标,为实现贝努埃州农民的目标,65个丛集项目构成了《芦荟生产手册》的内容,培训农民需要8种方法,培训农民的芦荟生产设施17个,评估农民实现贝努埃州芦荟生产手册目标的6种技术。因此,建议农业推广机构应定期组织研讨会和讲习班,培训农民和毕业生再培训,以提高他们使用本手册的技术效率,研究人员应将本研究产生的手册作为进一步研究的参考材料。
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引用次数: 0
Assessment of Bird Diversity and Abundance from Waste Disposal Sites in and Around Gubre Subcity, Wolkite Town, Southwestern Ethiopia 埃塞俄比亚西南部Wolkite镇Gubre郊区及其周边垃圾处理场鸟类多样性和丰度评估
Pub Date : 2018-01-01 DOI: 10.4172/2252-5211.1000354
S. K. Meles, Bezawork Afework Bogale
Waste disposal sites are predominantly used as feeding sites for generalist birds. The main objective of this study was to assess the diversity and abundance of birds from three waste disposal sites in and around Gubre sub city, Guraghe zone in 2017. Data were collected using point count techniques from 6:00−10:00 a.m. in the morning and 4:00−6:00 p.m. in the afternoon for three consecutive days each in three study sites. During this study, a total of 2566 birds belonging to 17 species, 7 Families and 6 Orders were recorded. From the 17 identified species of birds, 11 species each were from site I and III, while the remaining 7 species were recorded from site II. Among the seven identified families, Accipitridae was numerically the dominant family represented with 7 species, while Columbidae and Scopidae were the least dominant families represented with 1 species each. At species level, Hooded vulture (Necrosyrtes manachus) was the most abundant bird species. The total abundance of birds was significant (ANOVA result, p=0.00) difference among the three sites. In general, highest number of individual birds were counted in site I (1210) followed by site III (974) and site II (382). A significant difference in the abundance of birds between morning and afternoon was also observed (ttest, p=0.044). Greater numbers of birds were counted in morning in all study sites (range: 93 in site II and 651 in site I). Site I was found to be with relatively higher value of species diversity (H’=1.2) than Site III (H’=1.01) and Site II (H’=0.90). In the study area, waste collectors, domestic dogs, cats and vehicles were considered as threats for waste dependent birds. More studies are required to make a complete list of available bird species in the study area.
废物处理场主要用作多面手鸟类的饲养场。本研究的主要目的是评估2017年Gubre副城市Guraghe区及其周围三个废物处理场的鸟类多样性和丰度。在三个研究地点,连续三天分别于上午6:00 - 10:00和下午4:00 - 6:00使用点数计数技术收集数据。共记录鸟类2566只,隶属于6目7科17种。17种鸟类中,ⅰ、ⅲ点各11种,ⅱ点7种。7科中,刺蚊科数量最多,有7种;锥蝇科和镜蝇科数量最少,各有1种;在物种水平上,秃鹰(necrosytes manachus)是最丰富的鸟类。3个地点的鸟类总丰度差异有统计学意义(方差分析p=0.00)。总体而言,I点的个体数最多(1210只),其次是III点(974只)和II点(382只)。上午和下午鸟类的丰度也有显著差异(ttest, p=0.044)。各研究点上午鸟类数量均较多(2点为93只,1点为651只),1点物种多样性值(H′=1.2)高于3点(H′=1.01)和2点(H′=0.90)。在研究区域,垃圾收集者、家养的狗、猫和车辆被认为是对依赖废物的鸟类的威胁。需要进行更多的研究,才能完整地列出研究区域内现有鸟类的种类。
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引用次数: 7
Benchmarking Analysis on the Performance and Emissions of Combustion Boilers within the United States for Calendar Year 2016 2016年美国燃烧锅炉性能和排放基准分析
Pub Date : 2018-01-01 DOI: 10.4172/2252-5211.1000321
J. Fuller, Yang Guo
This current research effort will consider boiler conditions in 2016 within the United States. The analysis was based on data gathered from a voluntary survey completed by plant owners and operators. The survey responses included the following: (1) boiler fuel sources, (2) efficiency performance, (3) environmental performance, (4) operations and maintenance activities, and (5) boiler availability. The analysis also included future concerns with respect to daily boiler operation from the responding plant operators and management.
目前的研究工作将考虑2016年美国境内的锅炉状况。这项分析是基于一项由工厂所有者和经营者自愿完成的调查所收集的数据。调查反馈包括以下内容:(1)锅炉燃料来源,(2)效率表现,(3)环境表现,(4)运行和维护活动,以及(5)锅炉可用性。该分析还包括响应电厂操作员和管理人员对锅炉日常运行的未来关注。
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引用次数: 0
期刊
International Journal of Waste Resources
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