Waste technologies

The sociopolitical consequences of increased commitment to nuclear technologies which represent only 5 percent of world energy, raises questions of democratic decision-making to safeguard the environment and health and safety of the general public (Holdren, 1976). Some ask if it is worth the price. Research on the social and political implications identifies the crucial contrast between vulnerable and nonvulnerable technologies, and between technological waste and social waste. 

To address the technology, waste, safety and security issues concerning nuclear energy, the UN established the International Atomic Energy Agency (IAEA) in 1957, a few years after U.S. President Dwight D. Eisenhower s famous Atoms for Peace speech before the United Nations General Assembly. 

Proper waste management becomes increasingly important with increasing amounts of waste created by modem civilization. In cementing technology, wastes from various sources can be used in various ways. The activities may be subdivided into two main classes ... 

Council for Agricultural Science and Technology, Waste Management and Utilization in Food Production and Processing Interpretive Summary, 4420 West Lincoln Way, Ames, IA 50014-3447, USA, October 1995. 

Damgaard A, Manfredi S, Merrild H, Stenspe S, Christensen TH (2011) LCA and economic evaluation of landfill leachate and gas technologies. Waste Manag 31 (7) 1532—1541... 

Valorga A process for treating household waste by anaerobic digestion with the production of methane. Developed in the 1990s at the Languedoc University of Science Technology. Waste Manag. Environ., 1996, 6(3), 40. 

Wastes must be in liquid form, with no suspended solids, to be treated by PWR technology. Wastes containing water also require a centrifuge separation step. 

Biofuels Production Technology Waste-to-Energy Technology... 

Because water can be considered as one of the most benign solvents available, together with its solvation powers at high temperature, its applicability for a variety of wastes is tremendous. However, based on the current developments of the process, its applicability remains limited to pumpable waste streams. In addition, it is generally understood that the waste streams with organic content in the 1-20 wt.% range is most suitable for this technology. Waste streams with 100 wt.% can be treated with appropriate dilution. However, the cost for the dilution may add prohibitively to the total cost. 

Using the proposed technologies, waste steams which can no longer enter anymore the food chain are converted into biodiesel or biofuel. 

Mohammad Fabhat Ah, Ph.D., is Professor of Industrial and Petroleum Chemistry at King Fahd University of Petroleum Minerals in Saudi Arabia. An expert in characterization studies of heavy ends, residues, and asphalt, he is also knowledgeable about crude oils and products, refining process technology, waste oil recycling, and stabihty characteristics of jet fuels. 

This discussion is divided into four areas of study for energetic materials (EM) destruction primary destruction technologies waste preparation and feeding cost estimates and recycling. The discussion below summarizes the results of the projects conducted within these four areas. 

In principle, BAT(NEEC) and RACT offer the user flexibility in choosing an emission reduction strategy -choice between a variety of end-of-pipe abatement techniques, low solvent technologies, waste minimisation or any combination of these. It recognises that the most appropriate solution will vary from one application to another with size, product quality required and the age and location of a plant. 

RoHS provides health benefits. It helps reduce damage to people and the environment, especially to those in third-world countries where much of today s high technology wastes end up. It also ensures a healthier environment for workers in the electronics industry. 

Technolo es for Recycling Post-Consumer Mixed Plastics—Plastic Lumber Production, Emerging Separation Technologies, Waste Plastic Handlers and Equipment Manufacturers, prepared by Bruce A. Hegberg, Gary R. Brenniman and William H. Hallenbeck of the University of Illinois Center for Solid Waste Management and Research for the Illinois Department of Energy and Natural Resources, Office of Solid Waste and Renewable Resources, March 1991. 

Now, when the rates of growth of plastics manufacturing are extremely high, it is especially important, that development of the plastic industry take into consideration the problem of use of the plastics which are not outdated yet, but have lost their initial properties or consumer value of products, such as the thrown out products, and also technological waste products of their manufactures [1]. The problem under consideration is acute and relevant, it has ecological and economic aspects as it is connected with environmental protection and rational use of natural resources, needs for reduction the price of raw material for manufacture of polymers. At the same time it is the least investigated [2],... 

The application of well crystalline and disordered LADH-CI as a reversible selective sorbent for the extraction of lithium from brines and technological wastes... 

Khoo H. H. (2009) Life cycle impact assessment of various waste conversion technologies . Waste Manage, Vol.29, pp.1892-1900. 

Jian Jin, Xiaodong Li, Yong Chi, Jianhua Yan, Heavy metals stabilization in medical waste incinerator fly ash using alkaline assisted supercritical water technology. Waste Management Research 28... 

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