Download or read book Resource Recovery of Chromium from Electroplating Waste Sludge written by Robert S. Herman and published by . This book was released on 1983 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Value Recovery from Metal Hydroxide Sludges written by L. G. Twidwell and published by . This book was released on 1988 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recovery of Chromium from Plating Wastes written by BA. Bolto and published by . This book was released on 1984 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recovery of chromium from a plating sludge is discussed. The process consists of two parts: roasting the sludge with sodium carbonate (Na2CO3) and calcium oxide (CaO), followed by leaching. The optimal parameters for roasting are a temperature range of 950 to 1000°C and Na2CO3 and CaO contents of 2.4 and 2.8 mol per mole of chromium oxide (Cr2O3) respectively.
Download or read book Resource Recovery in Industrial Waste Waters written by Ali Khadir and published by Elsevier. This book was released on 2023-07-20 with total page 809 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resource Recovery in Industrial Waste Waters provides a holistic approach for discovering and harnessing valuable resources from industrial wastewaters, the cutting-edge technologies required, and a discussion on the new findings. In three volumes, the books stress the importance of contaminated waters' remediation, including surface waters, municipal or industrial wastewaters and treating these waters as a new source of nutrients, minerals and energy. It introduces polluted waters as new and sustainable sources, rather than seeing wastewaters as only a source of hazardous organic and inorganic matters. Sections discuss wastewater treatment and recovery and contribute to generate a sustainable approach of wastewater by providing the main advantages and disadvantages of both wastewater/polluted water treatment and recovery. - Reviews the current status of industrial wastewater treatment methods - Discusses the growing need of resource recovery from industrial wastewater, along with the challenges - Describes the importance of water reuse for combating water scarcity by describing current techniques and challenges - Evaluates the potential of the current market and status towards industrial wastewater resource recovery - Considers cutting-edge technologies for resource recovery - Contains comprehensive discussions on possibility of almost all recoverable resources from industrial wastewater
Download or read book Technical feasibility study on the chromium recovery from electroplating effluents written by Daniel Wiemken and published by diplom.de. This book was released on 2014-04-11 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhaltsangabe:Introduction: Rapid industrialisation and growth in population over the past two hundred years exert an increasing pressure on natural resources and the environment. Billions of tons of controlled and scheduled waste are generated every year by the industrial sector worldwide which is often either pre-treated on-site or at a licensed contractor prior to disposal in landfills. This practice if continued is leading to resource depletion and creates a potentially harmful legacy for future generations. In order to move towards a more sustainable development as outlined in the Bruntland Report, waste reduction, reuse and recycling coupled with pollution prevention measures play an important part to slow down if not reverse this practice. Heavy metals such as cadmium, mercury, lead and chromium are not degradable or renewable like biomass hence if they are to be used in future processes reuse and recycling are the only options. At present, heavy metals are used in the chemical industry sector for applications ranging from batteries to catalysts and surface coatings, and can be found at various concentrations in gaseous, liquid or solid waste. Chromium is of particular interest owing to its legislative status and unique chemistry. Chromium exists in nature primarily in one of two oxidation states. There are other chemical oxidation states of chromium, which include 0, II, IV, and V, but they are considered transitory compared to more stable Cr(III) and Cr(VI) species. Hexavalent chromium is a strong oxidizer which can react with DNA causing mutation, while the trivalent, organically complex form is a dietary supplement to help with proper glucose metabolism, weight loss and muscle tone. Unlike many other metals, Cr(VI) can combine with oxygen to form water-soluble, negatively charged anions known as yellow chromate (CrO42-) or orange dichromate (Cr2O72-), which adsorb to positively charged sites in contrast to cationic metal species. Therefore, hexavalent chromium species are not strongly bonded in many soils under alkaline to slightly acidic conditions, for example. Thus, they can be very mobile in subsurface environment while other metals precipitated out and exert toxic effects on biological systems. Various well-established methods may be used to treat industrial effluents and contaminated water such as reduction and precipitation, reverse osmosis, evaporation, ion exchange and adsorption. While these processes are able to remove [...]
Download or read book Sustainable Sludge Management Resource Recovery For Construction Applications written by Kuan-yew Show and published by World Scientific. This book was released on 2018-09-18 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Converting sludge into construction materials is deemed to be a sustainable approach to alleviating sludge disposal problems and conserving natural resources.This compendium presents the state-of-the-art development in recycling sludge into construction materials. A research-based development of engineering products made from sludge for common construction applications such as bricks, aggregates and cement-replacement materials is outlined. In-depth discussions on the properties of the products and their processing technology, the technical suitability for construction applications, and experimental study and assessment of toxic or hazardous chemicals leached from the products are prominently highlighted. Challenges and prospect of sludge recycling are also included.Contributed by eminent authors who are recognized authority in the field of sludge treatment and reuse, the unique monograph is a useful reference guide for professionals, researchers, academics and graduate students majoring in waste management, environmental engineering, civil engineering and materials engineering.
Download or read book Evaporative recovery of chromium plating rinse waters written by Leonard N. Elicker and published by . This book was released on 1978 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Green and Sustainable Chemical and Physical Technologies for Resources Recycling of Solid Wastes written by Xiangning Bu and published by Frontiers Media SA. This book was released on 2023-03-02 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hazardous Waste Reduction in the Metal Finishing Industry written by and published by Noyes Publications. This book was released on 1989-01-01 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: "From the Foreword: " This book presents the results of a waste audit study for the metal finishing industry. The study, carried out for the State of California but applicable for metal finishers elsewhere, identifies opportunities for waste reduction available to the metal finishing industry and develops procedures that can be used by metal finishers to assess their own waste reduction opportunities. The study emphasizes technologies available to small- and medium-sized metal finishing plants. Typically, these shops operate a variety of physical, chemical, and electrochemical processes. Chemical processes include degreasing, cleaning, pickling, etching, coating, and electroless plating. Electrochemical processes include plating and anodizing. The tasks included in the study were: (1) selecting metal finishing plants to include in the study, (2) performing a waste audit at each selected plant, (3) developing recommendations for implementing waste reduction technologies at each audited plant, (4) discussing with facility representatives the feasibility of implementing the waste reduction recommendations, and (5) developing this waste audit study report and methodology. The study identifies three categories of waste reduction technologies that are available to metal finishers: (1) source reduction, (2) recycling and resource recovery, and (3) alternative treatment. The costs associated with implementing these technologies range from a few hundred dollars for making simple improvements in housekeepiing and minor process modifications to tens of thousands of dollars for installing recovery or treatment units. The benefits realized from implementing such improvements include reductions inmaterial purchase and waste disposal costs, as well as reduction in the liability
Download or read book Environmental Pollution Control Alternatives written by Industrial Environmental Research Laboratory (Cincinnati, Ohio) and published by . This book was released on 1979 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management of Hazardous Wastes written by Hosam El-Din M. Saleh and published by BoD – Books on Demand. This book was released on 2016-10-19 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid trend of industry and high technological progress are the main sources of the accumulation of hazardous wastes. Recently, nuclear applications have been rapidly developed, and several nuclear power plants have been started to work throughout the world. The potential impact of released hazardous contaminants into the environment has received growing attention due to its serious problems to the biological systems. The book Management of Hazardous Wastes contains eight chapters covering two main topics of hazardous waste management and microbial bioremediation. This book will be useful to many scientists, researchers, and students in the scope of development in waste management program including sources of hazardous waste, government policies on waste generation, and treatment with particular emphasis on bioremediation technology.
Download or read book Development and Application of the Waste plus waste Process for Recovering Metals from Electroplating and Other Wastes written by Andrew A. Cochran and published by . This book was released on 1974 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Final Report Waste Reduction Strategies for the Printed Circuit Board Industry written by and published by . This book was released on 1987 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wastewater Resource Recovery and Biological Methods written by Pardeep Singh and published by Springer Nature. This book was released on 2023-11-21 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is unique in highlighting the issue of wastewater as one of the important environmental issues. The uniqueness also lies in exploring the concepts of converting waste into resources in the form of bioenergy, biofertilizers through various biological methods. Given the international scenario, the chapters of this book are designed to include both anaerobic and aerobic methods of resource recovery from the industrial wastewater. The book is a step toward design with nature and the concept of green chemistry. Waste menace is one of the most voiced and unsolved problems in the entire world. The whole world is facing the threat of water pollution, soil pollution/ land pollution, odour pollution from the growing waste. Though we find many missions and programs at international, national, and regional level to solve the waste associated issues, this is mostly in context with the solid fraction of the waste. Very little is being done to manage the liquid part of the waste or what we call the wastewater. The conversion of wastewater has the potential to be converted to energy in the form bioenergy, bio-fertilizers, electricity, nutrient recovery, etc. The use of sludge as biofertilizers solves the problem of sludge management on the one hand and production of organic crops on the other. The biological treatment methods like sludge treatment gives the farmers the source of biofertilizers and organic manure for the plants. In the present scenario, energy crisis is also one of the issues that we are facing particularly in context with the thermal power plants which are environmentally highly polluting. Through various techniques like microbial fuel cells or biohydrogen, we get a source of cleaner energy. So, through this book, we try to produce the content and information to give the audience an understanding of the waste water as one of the environmental and health issues and mitigation strategies. The book gives a sufficient understanding of how waste can be turned into a resource.
Download or read book Chromium VI Handbook written by Jacques Guertin and published by CRC Press. This book was released on 2004-12-28 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Put together by a team of scientists, engineers, regulators, and lawyers, the Chromium(VI) Handbook consolidates the latest literature on this topic. The broad scope of this book fills the need for a comprehensive resource on chromium(VI), improving the knowledge of this contaminant at a time when the extent and degree of the problem is still being
Download or read book Resource Recovery and Recycling Handbook of Industrial Wastes written by Marshall Sittig and published by William Andrew. This book was released on 1975 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
