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Balakrishnan Balamohan, Abdul Awal A.S.M. Properties of Concrete Containing High Volume Fly Ash


This book offers the construction industry professional an in-depth description of the use of high-volume fly ash in concrete. Importance is placed on the need for increased utilization of coal-fired power plant waste in lieu of Portland cement materials to eliminate increased carbon dioxide emissions during the production of cement. Also addressed is the significant increase in the concrete durability performance with the use of 40 percent and above of fly ash by weight. The book also contains charts of experimental test results of high volume fly ash concrete and also comparison results with concrete made with Ordinary Portland Cement.

9064 RUR

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Axel Schöler Study of hydration processes Portland cements blended with supplementary cementitious materials


Master's Thesis from the year 2012 in the subject Chemistry - Materials Chemistry, grade: 1,3, TU Bergakademie Freiberg (Institut für Glas, Keramik und Baustofftechnik), course: Bauchemie, language: English, abstract: The production of Portland cement clinker has a share of about 6% to 8% on the global CO2-emissions . Approximately 60% of those emissions are attributable to the decarbonation of limestone. A widespread approach for the reduction of the CO2-emissions is toreplace the clinker in the cement by pozzolanic waste materials, e.g. fly ash. The reaction of fly ash is generally slow. Due to this slow reaction cement pastes mixed of Portland cement and fly ash have a slower strength development than pure Portland cement, at least at early ages up to 7 days. The goal of this study was to increase early strength properties of Portland cement/fly ash blends by increasing the early ettringite formation in order to decrease the porosity. Therefore various amounts of anhydrite and laboratory synthesised C3A were added to Portland cement/fly ash systems that contained 30% fly ash. The behavior of these systems in terms of kinetics, phase development and microstructure was studied by means of strength tests, isothermal calorimetry, thermogravimetric analysis, chemical shrinkage, X-ray diffraction, backscattered electron image analysis, mercury intrusion porosimetry and thermodynamic modeling. In addition the activation by Na2SO4 was investigated on certain systems.It was fou...

4314 RUR

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Yunusa Adamu Ugya, T. S. Imam, M. Tahir The Role of Phytoremediation in Remediation Industrial Waste


Scientific Essay from the year 2016 in the subject Geography / Earth Science - Physical Geography, Geomorphology, Environmental Studies, , language: English, abstract: This text summarizes the role of phytoremediation in the remediation of industrial waste water since this waste water has become a threat to water quality. Several technologies are available to remediate water that is contaminated by industrial pollutant. However, many of these technologies are costly (e.g. excavation of contaminated material and chemical/physical treatment) or do not achieve a long-term nor aesthetic solution. Phytoremediation can provide a cost-effective, long-lasting and aesthetic solution for remediation of contaminated sites. In many cases, especially in tropical or subtropical areas, invasive plants such as the water hyacinth (Eichhornia crassipes) and water lettuce (P. stratiotes L.) are used in these phytoremediation water systems. This is because, compared to native plants, these invasive plants show a much higher nutrient removal efficiency with their high nutrient uptake capacity, fast growth rate, and big biomass production. In the active growth season, for instance, water hyacinth plants can double in number and biomass in 6 to 15 days. This study shows the importance of phytoremediation in the phytoremediation of industrial waste.

1852 RUR

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Gbeti Mawufemor, Adu-Bitherman Paul, Iddriss Abdul Razak Mensah Irrigation with Waste Water. The Case of Vegetable Farming in Ghana


In contemporary times, people have come to realize the importance of vegetables as rich source of vitamins and minerals which aid to protect their body against infection and diseases. This knowledge has increased the demand of both exotic and indigenous vegetables in the cities as such any available space in the cities has become a major farming centre for vegetable producers. On the other hand,there has been an increasing incidence of food borne diseases which is link to enteric pathogenic micro organisms found in fecal material and for that matter waste water. It implies that there might be possible contamination of vegetables that are irrigated with waste water. This means that untreated waste water use in vegetable irrigation can pose a serious Public Health problem to both consumers and producers. Therefore, the WHO has set standards for waste water reuse. However, the waste water use for vegetable irrigation in the study area is not treated and also, perception of consumers and farmers about the use of untreated waste water in vegetable irrigation in the study area is not known, hence the study seeks to find out the farmers as well as consumers perceptions about the problem.

8914 RUR

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Ajay Mishra Kumar Smart Materials for Waste Water Applications


Smart materials are used to develop more cost-effective and high-performance water treatment systems as well as instant and continuous ways to monitor water quality. Smart materials in water research have been extensively utilized for the treatment, remediation, and pollution prevention. Smart materials can maintain the long term water quality, availability and viability of water resource. Thus, water via smart materials can be reused, recycled, desalinized and also it can detect the biological and chemical contamination whether the source is from municipal, industrial or man-made waste. The 15 state-of-the-art review chapters contained in this book cover the recent advancements in the area of waste water, as well as the prospects about the future research and development of smart materials for the waste water applications in the municipal, industrial and manmade waste areas. Treatment techniques (nanofiltration, ultrafiltration, reverse osmosis, adsorption and nano-reactive membranes) are also covered in-depth. The chapters are divided into three groups: The first section includes the various carbon nanomaterials (such as carbon nanotubes, mixed oxides) with a focus on use of carbon at nanoscale applied for waste water research. The second section focuses on synthetic nanomaterials for pollutants removal. The third section highlights the bio-polymeric nanomaterials where the authors have used the natural polymers matrices in a composite and nanocomposite material for waste treatment. The large number of researchers working in the area will benefit from the fundamental concepts, advanced approaches and application of the various smart materials towards waste water treatment that are described in the book. It will also provide a platform for the researchers and graduate students to carry out advanced research and understand the building blocks.

15050.19 RUR

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F. Kocataskin Progress Report No. 1 on the Uses of Fly Ash in Highway Materials


Эта книга — репринт оригинального издания (издательство "Lafayette, IN: Purdue University", 1957 год), созданный на основе электронной копии высокого разрешения, которую очистили и обработали вручную, сохранив структуру и орфографию оригинального издания. Редкие, забытые и малоизвестные книги, изданные с петровских времен до наших дней, вновь доступны в виде печатных книг.Progress Report No. 1 on the Uses of Fly Ash in Highway Materials. Results of Tests on Mortars and Concretes Containing a Mechanically Precipitated Fly Ash.

741 RUR

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John Francis McLaughlin Progress Report No. 3 on the Uses of Fly Ash in Highway Materials


Эта книга — репринт оригинального издания (издательство "Lafayette, IN: Purdue University", 1957 год), созданный на основе электронной копии высокого разрешения, которую очистили и обработали вручную, сохранив структуру и орфографию оригинального издания. Редкие, забытые и малоизвестные книги, изданные с петровских времен до наших дней, вновь доступны в виде печатных книг.Progress Report No. 3 on the Uses of Fly Ash in Highway Materials. An Investigation of the Use of a Mechanically Precipitated Fly-Ash as a Filler for Bituminous Concrete.

688 RUR

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Dilip Nath, Veena Sahajwalla Synthesis of Carbon Nanotubes


We produced carbon nanotubes (CNTs) by pyrolysis of composite films of poly (vinyl alcohol) (PVA) with fly ash and physically/chemically modified fly ash at 500 °C for 10 min under a nitrogen flow of 2 L/min. Different geometrical structures, e.g.; knotted and twisted, U- and spiral-shaped, bamboo-shaped, rod, fiber and ribbon-shaped CNT materials were observed in the images of scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The widths of the CNT ribbons measured in TEM varied in the ranges 18 ~ 80 nm. X-ray photoelectron spectroscopy analysis showed five types of carbon binding peaks, C-C/C-H, C-O-H, -C-O-C, C=O and -O-C=O with different percentages. The ratio of intensities of G and D bands, IG/ID show different values analysed by Raman Spectroscopy in relation with nature of fly ash particles. CNT materials grown on the surface of fly ash have potential for the fabrication of high-strength composite materials with polymer and metal.

9052 RUR

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Colm O'Donnell Ozone in Food Processing


This book is the first to bring together essential information on the application of ozone in food processing, providing an insight into the current state-of-the-art and reviewing established and emerging applications in food processing, preservation and waste management. The chemical and physical properties of ozone are described, along with its microbial inactivation mechanisms. The various methods of ozone production are compared, including their economic and technical aspects. Several chapters are dedicated to the major food processing applications: fruit and vegetables, grains, meat, seafood and food hydrocolloids, and the effects on nutritional and quality parameters will be reviewed throughout. Further chapters examine the role of ozone in water treatment, in food waste treatment and in deactivating pesticide residues. The international regulatory and legislative picture is addressed, as are the health and safety implications of ozone processing and possible future trends.

17670.1 RUR

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Kingsley Udoakpan Comparative Study on the Effectiveness of Musa Sapientum and Cardaba Peel Waste in Removal Heavy Metals from Water


Bachelor Thesis from the year 2011 in the subject Chemistry - Analytical Chemistry, grade: Publication, Michael Okpara University of Agriculture (College of Natural and Applied Sciences), course: Chemistry, language: English, abstract: Biosorption has been widely used as a more efficient alternative for the current expensive approach to heavy metal remediation from water and waste water. The effectiveness of ripe Musa sapientum (MSR) and ripe Musa cardaba (MCR) peels in the removal of Cd2+, Fe2+, Pb2+, Zn2+ ions was investigated. The amount of metal ions sorbed depended on the metal ion - adsorbent contact time, ion concentration and adsorbent weight. Weight of adsorbent was varied between 0.1 - 0.4g; contact time, 5 - 25 minutes; and ion concentration, 0.01 - 0.04M. The results indicated that Musa sapientum (Ripe) showed higher percentage sorption in removing metal ions from waste water than Musa cardaba (Ripe) peels. The peak percentage sorption of metal ions by MSR peel waste are; Cd2+ (99.95%), Fe2+ (100%), Pb2+ (100%), Zn2+ (99.92%) while metal ions by MCR peel waste was; Cd2+ (99.74%), Fe2+ (99.83%), Pb2+ (100%), Zn2+ (99.60%). The results obtained above showed that both adsorbent species are favourable for sorption and removal of the test heavy metals from their aqueous environment. Nevertheless, ripe Musa sapientum (MSR) is highly recommended for both Fe2+ and Pb2+ uptake due to its sorption capacity and efficiency.

2614 RUR

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F. Kocataskin Progress Report No. 2 on the Uses of Fly Ash in Highway Materials


Эта книга — репринт оригинального издания (издательство "Lafayette, IN: Purdue University", 1957 год), созданный на основе электронной копии высокого разрешения, которую очистили и обработали вручную, сохранив структуру и орфографию оригинального издания. Редкие, забытые и малоизвестные книги, изданные с петровских времен до наших дней, вновь доступны в виде печатных книг.Progress Report No. 2 on the Uses of Fly Ash in Highway Materials. Informational Report - Results of Tests on Soils Stabilized with Lime-Fly Ash Admixtures.

738 RUR

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Nasrin Sultana Water Scarcity and Slum W Challenges . Coping Strategies


Women the bearer of water scarcity affects and cannot deny the realities water scarcity. This paper highlighted some of the ways in which water scarcity increases the difficulties faced by slum women, particularly in terms of the burden of water collection and health issues. It also traced changing relationships in slum women's life in this situation. Generally, women's water management role in the household is not recognizing as important role. This study reveals that, during water scarcity because of women's traditional role as providers of water for the family, women caretakers have demonstrated interests and ability to collect and preserve water. Due to this workloads women's health their livelihood options are adversely affected. During water scarcity women's experiences and coping mechanisms explored through this research. Thus, it makes a critique of current social structures particularly with regard to gendered values and perceptions and provides examples of gendered thinking in dealing with water management role during water scarcity.

8652 RUR

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Adriana Holmberg Milea Waste as a Social Dilemma


In Delhi, as in many other large cities in the developing world, the inappropriate management of municipal solid waste is a significant flaw in the quality of life of its residents and a serious threat to the environment. This book focuses on city residents as waste producers and their role in municipal solid waste management. It argues that the waste problem is caused by human behaviour and therefore the solution lies in changing that behaviour. After examining waste related attitudes and behaviours and the factors influencing these, the book proposes several policy recommendations aiming to reach more environment-friendly and socially equitable conduct. In other words it suggests ways to escape the social dilemma of being buried under one's own trash. Besides making an appealing reading to environmentalists and to anyone interested in social dilemmas and waste management, the book is especially useful for government bodies and NGOs planning interventions for improving solid waste management systems, as well as for all those who believe it is time to place waste at the top of development agendas instead of, yet again, sweeping it under the carpet.

9064 RUR

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Arun Karnwal, Ravi Kumar Vermicompost. A Bio-Organic Fertilizer


Under present day condition, it becomes very essential to protect the environment from further degradation, develop appropriate technologies for use in recycling various organic wastes and to harness energy thus minimizing environmental stress. Vermitechnology is a promising technique that has shown its potential in certain challenging areas like augmentation of food production, waste recycling, management of solid wastes, etc. The active component involved in the biodegradation and conversion processes during composting is the resident microbial community, among which fungi play a very important role. Large-scale composting has been shown to be an important element in sustainable waste management and could have a vital role to play in meeting the obligations of the Landfill Directive. However, very few people know much about the widespread science and practice of using earthworms to compost waste on a large-scale.

8639 RUR

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Emmanuel Awohouedji Can the Republic of Benin Achieve SDGs Through Best Waste Management Practices.


Master's Thesis from the year 2017 in the subject Politics - International Politics - Environmental Policy, grade: A, The American University, Washington, DC (School of International Service), language: English, abstract: Sustainable development goals (SDGs) and households' solid waste management (HSWM) in the Republic of Benin, West Africa is the focus of this research. It explicitly investigates fermentable (organic) waste. Drawing on qualitative research, it argues that households' waste management could be a driver in the achievement of the SDGs. It briefly examines the international context of waste policy establishment and the framework of internationally supported waste project in the Republic of Benin (RB or Benin) in order to demonstrate the importance of socio-cultural factors in the waste sector. Through the lenses of urban political ecology and political ecology of waste theories, it explains how the perception and the treatment of waste in pre-colonial Benin might have changed over time, compared to postcolonial Benin. Inspired by one of the main challenges of the 21st century, achieving a worldwide sustainable development, the paper suggests a different approach of perceiving and treating waste in general and organic waste in particular. It argues that a community-based approach based on cooperatives could be the answer to the waste issue, but could also provide a canvas for the successful and inclusive achievement of the SDGs in Benin.

6052 RUR

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Assaye Beyene Challenges and Prospects of Public Participation in Solid Waste Management


Master's Thesis from the year 2015 in the subject Sociology - Economy and Industry, grade: 3.83, Bahir Dar University, language: English, abstract: Solid waste management is becoming a major public health and environmental concern in urban areas of many developing countries, including Ethiopia. Bahir Dar is one of the cities in the country for which solid waste management is a problem. The main objective of the study is to investigate the challenges and prospects of public participation in solid waste management. The study area has nine sub cities. Simple random sampling was used to select two subcities and one zone from each selected subcity. Finally, systematic random sampling was used to select 271 respondents. The survey data was collected by using structured interview. Qualitative data were collected through semi-structured interviews, focus group discussion and observation. Descriptive statistics, ttest and chi-square test were used to determine an association between the dependent variable and the explanatory variables. The ordered logistic regression model was used to identify major factors that affect public participation in solid waste management. The survey result showed that the community can play a great role for better management of solid wastes by putting wastes in containers (38%), participate in waste management activities (34%), pay money for waste collectors (21%) and sorting wastes (7%). The majority of respondents (68.63%) replied that community conve...

5839 RUR

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Bala Ramudu Paramkusam, A. Prasad, L. P. Srivastava Stabilization of Contaminated Soil with Fly Ash and Cement Kiln Dust


Soil contamination included oil, chemical, heavy metals and organic contaminant. High concentration of chemicals and toxic metals made the soil incapable for any intended engineering works. studies have been performed on contaminated soil and for their stabilization.In this work attempt has been made to study the effect of diesel oil on properties of local soil and then their stabilization with Fly Ash (FA) and Cement Kiln Dust (CKD). The stabilisation of contaminated soil by CKD improved the soil characteristics to some extent. The value of cohesion can be increased nearly linear by addition of CKD. Swelling is reduced by increasing amount of CKD which leads to the conclusion that the swelling behavior of the soil can be effectively controlled by the addition of CKD. From this study, the CKD may be effectively utilized in improvement of hydrocarbon contaminated soil. The stabilisation of contaminated soil by fly ash improved the soil characteristics to some extent. From the overall observations of the study that, the stabilisation of diesel engine oil contaminated soil using fly ash has been observed to be effective.

8789 RUR

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Khan Shaheer, Haroon Muhammad, Kamal Mehran Performance Evaluation of Cement treated -Sugar Cane Bagasse Ash


Sugar Cane is a particularly useful product in developing countries.Unfortunately, as is the case with almost every useful material it leaves behind its waste ash which is largely dumped in landfills. These landfills destroy the aesthetic appearance of landscape as well as rapidly become an environmental burden. The use of Bagasse ash in soils and in concrete has been successfully proven but its possible potential as a highway construction material still remains to be explored The paper aims to utilize it as a useful material as highway construction material. To test its potential as subgrade material, compaction test, and unconfined compressive strength and CBR test was conducted for evaluation.Highest CBR values were 13.6% for 4 days cured sample and 25.85% for 40 days cured sample.. Recycling of SCBA waste in productive construction activities will yield us profoundly positive results in terms of environmental protection, waste management practices, and saving of raw materials.

5202 RUR

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Ajay Mishra Kumar Application of Nanotechnology in Water Research


Details the water research applications of nanotechnology in various areas including environmental science, remediation, membranes, nanomaterials, and water treatment At the nano size, materials often take on unique and sometimes unexpected properties that result in them being ‘tuned’ to build faster, lighter, stronger, and more efficient devices and systems, as well as creating new classes of materials. In water research, nanotechnology is applied to develop more cost-effective and high-performance water treatment systems, as well as to provide instant and continuous ways to monitor water quality. This volume presents an array of cutting-edge nanotechnology research in water applications including treatment, remediation, sensing, and pollution prevention. Nanotechnology applications for waste water research have significant impact in maintaining the long-term quality, availability, and viability of water. Regardless of the origin, such as municipal or industrial waste water, its remediation utilizing nanotechnology can not only be recycled and desalinized, but it can simultaneously detect biological and chemical contamination. Application of Nanotechnology in Water Research describes a broad area of nanotechnology and water research where membrane processes (nanofiltration, ultrafiltration, reverse osmosis, and nanoreactive membranes) are considered key components of advanced water purification and desalination technologies that remove, reduce, or neutralize water contaminants that threaten human health and/or ecosystem productivity and integrity. Various nanoparticles and nanomaterials that could be used in water remediation (zeolites, carbon nanotubes, self-assembled monolayer on mesoporous supports, biopolymers, single-enzyme nanoparticles, zero-valent iron nanoparticles, bimetallic iron nanoparticles, and nanoscale semiconductor photocatalysts) are discussed. The book also covers water-borne infectious diseases as well as water-borne pathogens, microbes, and toxicity approach.

16061.9 RUR

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Lu Max Photocatalysis and Water Purification. From Fundamentals to Recent Applications


Water is one of the essential resources on our planet. Therefore, fresh water and the recycling of waste-water are very important topics in various areas. Energy-saving green technologies are a demand in this area of research. Photocatalysis comprises a class of reactions which use a catalyst activated by light. These reactions include the decomposition of organic compounds into environmental friendly water and carbon dioxide, leading to interesting properties of surfaces covered with a photocatalyst: they protect e.g. against incrustation of fouling matter, they are self-cleaning, antibacterial and viricidal. Therefore, they are attractive candidates for environmental applications such as water purification and waste-water treatment. This book introduces scientists and engineers to the fundamentals of photocatalysis and enlightens the potentials of photocatalysis to increase water quality. Also, strategies to improve the photocatalytic efficacy are pointed out: synthesis of better photocatalysts, combination of photocatalysis with other technologies, and the proper design of photocatalytic reactors. Implementation of applications and a chapter on design approaches for photocatalytic reactors round off the book. 'Photocatalysis and Water Purification' is part of the series on Materials for Sustainable Energy and Development edited by Prof. G.Q. Max Lu. The series covers advances in materials science and innovation for renewable energy, clean use of fossil energy, and greenhouse gas mitigation and associated environmental technologies.

15746.18 RUR

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