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International Conference on Green technology and environmental Conservation (GTEC-2011)最新文献

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Achieving sustainability in the Indian plastic industry: Issues and challenges 实现印度塑料工业的可持续性:问题和挑战
Santanu Mandal
With technological progress and globalization, the Indian plastic industry also has witnessed dramatic changes in the last decade like the entry of a no. of small players and as a result the sector came to be operated mainly by small and medium scale enterprises. Each of these small firms is in fierce competition with each other vying for market share and thereby trying to own over as many clients as possible. Now sustainability has become a necessary competitive dimension for every firm to have as one of its essential characteristics so as to have a positive brand image in the minds of its customers. So for each of these small firms it is quite a challenging task to achieve sustainable operations while still maintaining their market position. In this paper an effort has been made to investigate the possible issues that might facilitate or block the firms in the sector in achieving sustainable operations.
随着技术进步和全球化,印度塑料行业在过去十年中也发生了巨大的变化,如no. 1的进入。小型企业,因此该部门主要由中小型企业经营。每一个小公司都在激烈竞争,争夺市场份额,从而试图拥有尽可能多的客户。现在,可持续性已经成为每个公司必须具备的竞争维度,作为其基本特征之一,以便在客户心目中拥有积极的品牌形象。因此,对于这些小公司来说,在保持市场地位的同时实现可持续运营是一项相当具有挑战性的任务。本文努力调查可能促进或阻碍该部门的公司实现可持续业务的可能问题。
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引用次数: 0
Enhanced distillate yield of acrylic pyramid top cover solar still with and without tar coated blue metal 有和没有沥青涂层蓝色金属的丙烯酸金字塔顶盖太阳能蒸馏器提高蒸馏物收率
B. Selvakumar, B. Kalidasan, S. Kalaivani, S. Radhakrishnan
An innovative work had been carried to increase the distillate yield of the solar still by replacing the single slope cover by means of parabolic cover. Advantage of pyramid top cover is that the amount of solar radiation entering the system in more when compared to other types of top cover. The top pyramid cover is made up of transparent acrylic sheet of 3 mm thickness of transmittance 88%. Pyramid top cover of diameter 0.75 m and height 0.30 m is designed for the still. It is designed by joining the two portions of the acrylic sheet.
为提高太阳能蒸馏器的馏出物收率,进行了一项创新工作,即用抛物线形盖代替单坡盖。金字塔顶盖的优点是,与其他类型的顶盖相比,进入系统的太阳辐射量更多。顶部金字塔罩由透明亚克力板组成,厚度为3毫米,透光率为88%。为蒸馏器设计了直径0.75 m、高0.30 m的金字塔顶盖。它是通过连接亚克力板的两个部分来设计的。
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引用次数: 1
Antifungal efficacy of pyocyanin produced from bioindicators of nosocomial hazards 医院危害生物指示剂产pyocyanin的抗真菌效果研究
T. Sudhakar, S. Karpagam
Pseudomonas, a common bacterium is found in soil, water, skin flora and in most of the man made environments such as Hospital, Industry, Effluent treatment plant. Pseudomonas aeruginosa one of the most important opportunistic pathogen which causes nosocomial infections to the patient in Intensive care unit has become a major threat in the medical care. It also exhibits multidrug resistance which has drawn the attention of the microbiologist. The characteristic feature of Pseudomonas aeruginosa is the production of soluble green pigment pyocyanin, which act as a bio-indicator for the identification of a contaminant in hospital environment. Pyocyanin produced as a secondary metabolite exhibits antifungal activity by both disc diffusion and liquid culture methods. The present study was undertaken to determine the frequency of occurrence of Pseudomonas aeruginosa in patient population attending an outpatient department. The study also includes to demonstrate the pigment production on various solid and liquid media. Further, the pigment pyocyanin was extracted and confirmed by using the solvent chloroform. The pigment was separated by thin layer chromatography and purified by column chromatography. Fraction which was obtained from TLC was used to determine the MIC and the antifungal activity against Candida albicans, Candida tropicalis, Candida glabarata Cryptococcus neoformans and Aspergillus fumigatus which concluded that pyocyanin pigment has the ability to inhibit the growth of various fungi by arresting the electron transport in both in vitro and in vivo conditions.
假单胞菌是一种常见的细菌,存在于土壤、水、皮肤菌群和大多数人为环境中,如医院、工业、污水处理厂。铜绿假单胞菌是引起重症监护病房患者院内感染的最重要的条件致病菌之一,已成为医疗保健的一大威胁。它还表现出多药耐药性,这引起了微生物学家的注意。铜绿假单胞菌的特点是产生可溶性绿色色素pyocyanin,作为医院环境中污染物识别的生物指示剂。花青素作为一种次生代谢物,通过圆盘扩散法和液体培养法均表现出抗真菌活性。本研究旨在确定在门诊就诊的患者中铜绿假单胞菌的发生频率。该研究还包括在各种固体和液体介质上展示颜料的生产。在此基础上,以氯仿为溶剂,提取并确认了色素花青素。采用薄层色谱法分离,柱层析法纯化。采用薄层色谱法测定其MIC和对白色念珠菌、热带念珠菌、光光念珠菌新型隐球菌和烟曲霉的抑菌活性,结果表明,在体外和体内条件下,花青素均能通过阻断电子传递抑制多种真菌的生长。
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引用次数: 8
An experimental performance analysis of a concentrated solar distiller 聚光太阳能蒸馏器的实验性能分析
M. Gowtham, M. Chander
The performance of solar concentrated distiller with latent heat storage capacity is compared with distiller integrated with mini solar pond as a preheated source of water. In this paper, paraffin wax is used as the latent heat storage material. Experiments conducted to improve productivity by increasing various factors like Heat storage capacity, exposure area, maintaining low depth. Productivity of water was measured every hour between 10 A.M to 5 P.M by maintaining lower depth.
比较了具有潜热蓄热能力的太阳能浓缩蒸馏器与集成微型太阳能池作为预热水源的蒸馏器的性能。本文采用石蜡作为潜热储热材料。通过增加储热容量、暴露面积、保持低深度等各种因素来提高生产率的实验。在10a和10a之间每小时测量一次水的生产力。保持较低的深度。
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引用次数: 1
Screening and isolation of effective microbes from organic wastes for faster and effective degradation of bio-degradable municipal solid waste 筛选和分离有机废物中的有效微生物,以更快、更有效地降解可生物降解的城市固体废物
S. Kalaivani, Sahu Amiya Kumar, K. Shanthi
Solid Waste Management was one of the most neglected sectors in India until the amendment of Municipal Solid Waste (Management & Handling) Rules 2000. In the recent years, the municipal authorities have made it mandatory to undertake responsibility for all activities relating to Municipal Solid Waste Management. But, it is essential to identify suitable treatment methods to reduce the quantity of waste and to convert Waste into Energy. The municipal Solid Waste Consists of more than 50% of organicWaste, So composting most of these wastes would be the best way to reduce the quantity to 1/4th, resulting in nutrient rich soil amendment. Aerobic Composting of Organic Waste materials using Effective microbes has been recognized as an ecologically safe method of waste disposal. There are various consortia existing but the time taken for degradation is very long. This paper aims at isolation, identification and formulation of effective microbes from flower waste, vegetable waste, yard waste and Municipal Solid Waste. Detailed morphological, biochemical, enzyme production, carbohydrate utilization, and antagonistic study has been performed to identify the microorganisms. From this, microbial consortium was developed and tested on organic wastes to identify the most effective fast degrading microbial consortium for large scale treatment of organic waste.
在2000年修订城市固体废物(管理和处理)规则之前,固体废物管理是印度最被忽视的部门之一。近年来,市政当局已责成承担与城市固体废物管理有关的所有活动的责任。但是,确定合适的处理方法以减少废物的数量并将废物转化为能源是至关重要的。城市固体废物占有机废物的50%以上,因此将大部分固体废物堆肥将是将其数量减少到1/4的最佳方法,从而使土壤养分丰富。利用有效微生物对有机废物进行好氧堆肥已被认为是一种生态安全的废物处理方法。虽然存在各种各样的联合体,但降解所需的时间很长。本文旨在从花卉废弃物、蔬菜废弃物、庭院废弃物和城市生活垃圾中分离、鉴定和配方有效微生物。详细的形态学,生化,酶生产,碳水化合物利用和拮抗研究已经进行了鉴定微生物。在此基础上,开发了微生物联合体,并对有机废物进行了试验,以确定最有效的快速降解微生物联合体,用于有机废物的大规模处理。
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引用次数: 1
Screening of four species of earthworms for sustainable vermicompostin of Ipomoea carnea 四种蚯蚓可持续性蚯蚓堆肥蛋白的筛选
Manoj Makhija, S. Gajalakshmi, S. A. Abbasi
The epigeic earthworm species Eudrilus ugeniae, Eisenia fetida, Perionyx excavatus, and an anecic arthworm species Lampito mauritii were explored separately for the vermicomposting of Ipomoea leaves in reactors that were operated for four months. The earthworm species which consistently produced more vermicast was E.eugeniae followed by E.fetida, P.excavatus, with L.mauritii being the least producer. Seen from the standpoint of average of vermicast production per gram of earthworm body weight, E. eugeniae scored over E.fetida but the difference is very less.The average zoomass of E.fetida, E.eugeniae, and P.excavatus increased over time but decreased in L.mauritii decreased. In terms of fecundity, the performance of E.fetida (29 juveniles, 16 cocoons) was similar to that of E. eugeniae (20 juveniles, 10 cocoons) followed by P.excavatus. L.mauritii respectively. The results indicate that E.fetida and E. eugeniae are the most suitable among the four species screened for vermicomposting of Ipomoea leaves; their performance in terms of efficiency of vermicomposting, zoomass gain, and being close to each other. P. excavates is not suitable for the vermicomposting because of mortality. The anecic L. mauritii came out a poor fourth and is clearly unsuitable for the vermicomposting of Ipomoea carnea leaves as it didn't gain weight on feeding upon Ipomoea carnea. Due to this fact, and the animal's poor fecundity in Ipomoea-based vermireactors, this species will not be able to provide sustainable vermicast output.
分别对附生蚯蚓Eudrilus ugenae、Eisenia fetida、Perionyx excavatus和Lampito mauritii进行了4个月的蚯蚓堆肥试验。产蚓量最多的蚯蚓种为eugenae,其次为fetida和p.a uncalatus,而产蚓量最少的是L.mauritii。从蚯蚓每克体重的蚯蚓产量平均值来看,真芽拟虫优于臭芽拟虫,但差异很小。随着时间的推移,毛毛鼠的平均动物质量呈下降趋势,而臭毛鼠的平均动物质量呈下降趋势。在繁殖力方面,臭田鼠(29只稚虫,16个茧)的表现与金田鼠(20只稚虫,10个茧)相似,其次是洞田鼠。L.mauritii分别。结果表明,在筛选的4种植物中,拟虫和真叶拟虫最适合蚓粪堆肥;它们在蚯蚓堆肥效率、增重、相互接近方面的表现。因死亡率高,不适合蚯蚓堆肥。毛里提石虱排在第四位,显然不适合蚯蚓堆肥,因为它以蚯蚓为食并没有增加体重。由于这一事实,以及动物在伊波莫亚的蠕虫反应器中的繁殖力差,该物种将无法提供可持续的蠕虫产出。
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引用次数: 3
Biomarker responses in fish exposed to industrial effluent 暴露于工业废水中的鱼类的生物标志物反应
P. B. Reddy, Renu Singh
The effects of effluents from textile industry were studied using Mystus tengara as test organism. The effluents were collected from non point source and the chemical parameters assessed. The pH, DO. hardness, and alkalinity were much higher than the standard quality. The toxicity of these effluents on Mystus tengara and the LC 50 values were determined. The experimental fishes revealed gradual decrease in albumin and INR. RBC. Plasma level of glucose was also lower in the exposed fish when compared to the control. However high levels of ASP and ALT were observed. Histopathology of experimental fish revealed swelling and degeneration of hepatocytes, mild proliferation of bile ducts. In conclusion, the changes observed indicate that hematological and biochemical parameters can be used as an indicator of toxicity related stress in fish exposed to effluents.
以腾格里菌为试验生物,对纺织工业废水的处理效果进行了研究。收集了非点源污水,并对其化学参数进行了评价。pH, DO。硬度、碱度均远高于标准质量。测定了这些废水对柽柳的毒性及lc50值。实验鱼的白蛋白和INR逐渐降低。加拿大皇家银行。与对照组相比,受辐射鱼的血浆葡萄糖水平也较低。然而,观察到高水平的ASP和ALT。实验鱼的组织病理学显示肝细胞肿胀变性,胆管轻度增生。总之,观察到的变化表明,血液学和生化参数可以作为暴露于废水的鱼类毒性相关应激的指标。
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引用次数: 1
Conventional solid waste management technique for eradication of solid waste and its impact assessment 消除固体废物的常规固体废物管理技术及其影响评价
S. Sathish, M. Prabhakaran
Solid waste often called the third pollution after air and water. Solid waste is defined as the material, which arises from various human activities and which is normally discarded as useless and unwanted. Chemical process industries generate variety of wastes both organic and inorganic, which are mixture with wide range of components. The process of selection of right solid waste disposal method is complex due to heterogeneity of the refuse, but by the slight modification of the process technique we can achieve 0% discharge of solid waste and reduce the losses of the product through the solid waste thereby increase the productivity of the plant.
固体废物常被称为继空气和水之后的第三大污染。固体废物被定义为各种人类活动产生的材料,通常被视为无用和不需要而丢弃。化学加工工业产生各种有机和无机废物,这些废物是多种成分的混合物。由于垃圾的异质性,选择正确的固体废物处理方法的过程是复杂的,但通过对工艺技术的轻微修改,我们可以实现固体废物的0%排放,减少产品通过固体废物的损失,从而提高工厂的生产率。
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引用次数: 2
Treatment of highly polluted paper mill waste water by solar photocatalytic oxidation with synthesized nano Tio2 合成纳米Tio2光催化氧化处理高污染造纸废水
J. Manassah
Photo catalytic processes in the presence of titanium dioxide provide an interesting route to destroy hazardous organic contaminants, being operational in the UV-A domain with a potential use of solar radiation. The solar photo catalytic degradation of paper mill wastewater has been studied over synthesized nano TIO2. The catalyst was characterized by techniques like x-ray diffraction (XRD)‥ The enhanced photo catalytic activity of the synthesized catalyst is attributed to the crystalinity, nano size, large amount of surface hydroxyl species and reduced band-gap.
二氧化钛存在下的光催化过程为破坏有害有机污染物提供了一条有趣的途径,它在UV-A域中运行,并有可能利用太阳辐射。在合成的纳米TIO2上研究了太阳能光催化降解造纸废水。用x射线衍射(XRD)等技术对催化剂进行了表征,合成的催化剂的光催化活性增强归功于结晶度,纳米尺寸,大量的表面羟基物质和减小的带隙。
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引用次数: 6
In vitro enzyme catalytic biotransformation of Carbon dioxide into useful chemicals - A short review 体外酶催化二氧化碳转化为有用化学物质的研究进展
Kavita J. Lanjekar, N. Gharat
Enzyme catalytic reactions are environmentally safe catalytic reactions in organic synthesis. The efficient conversion of Carbon dioxide using enzymes will help in reducing the greenhouse gas effect and in production of useful chemicals as well. Unlike microbial processes, enzymatic biotransformation is much faster, cleaner and easier to operate. Compared to conventional processes, the enzymatic approach for conversion of Carbon dioxide has attracted a lot of attention, due to its several advantages such as high yields and selectivity under milder reaction conditions. A detailed search of published reports was done and analyzed in this paper, related to enzyme catalytic carbon dioxide conversion into useful chemicals.
酶催化反应是有机合成中环境安全的催化反应。利用酶有效地转化二氧化碳将有助于减少温室气体效应,并有助于生产有用的化学品。与微生物过程不同,酶生物转化更快、更清洁、更容易操作。与传统方法相比,酶催化二氧化碳的方法因其在较温和的反应条件下具有高收率和选择性等优点而受到广泛关注。本文对已发表的与酶催化二氧化碳转化为有用化学物质有关的报告进行了详细的检索和分析。
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引用次数: 1
期刊
International Conference on Green technology and environmental Conservation (GTEC-2011)
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