Waste disposal problems

By introduction of Real-Time X-Ray the consumable costs and the waste disposal problems are reduced. The capacity of the system allowed an increase of production volume without the need for a investment for an additional film X-Ray unit which would have been needed otherwise. 

Nonregenerative caustic treatment is generally economically appHed when the contaminating materials are low in concentration and waste disposal is not a problem. However, the use of nonregenerative systems is on the decline because of the frequentiy occurring waste disposal problems that arise from environmental considerations and because of the availabiHty of numerous other processes that can effect more complete removal of contaminating materials. 

Recycling. Beryllium is typicaUy recycled, thus it is not a waste disposal problem in fact, it is rarely a waste product at aU. Because of the high cost of producing beryUium, beryUium producers repurchase clean scrap from customers for recycling and reuse. 

Condensate from contact units cannot be reused and may constitute a waste disposal problem. Surface condensers can be used to recover valuable condensate. Surface condensers must be equipped with more auxiliary equipment and generally require a greater degree of maintenance. 

Tlie process presents waste disposal problems... 

In wet FGD systems, fine gas exiting from the particulate collector flows to an absorber. In the absorber, the flue gas comes into contact with the sorbent slurry. The innovative scrubbers in the CCT program featured a variety of technologies to maximize SO, absorption and to minimize the waste disposal problems (sludge). 

The fear of accidents like Chernobyl, and the high cost of nuclear waste disposal, halted nuclear power plant construction in the United States m the 1980s, and in most ol the rest ol the world by the 1990s. Because nuclear fusion does not present the waste disposal problem of fission reactors, there is hope that fusion will be the primary energy source late in the twenty-first centuiy as the supplies of natural gas and petroleum dwindle. 

For reactions in the near neutral or slightly basic pH regime - which are of interest in environmental chemistry and waste disposal problems - the presence of the common anions Cl-, S0i+ and CO3 can introduce additional complications. 

Since pollution control and waste disposal problems vary greatly from one laboratory to another, they have to be handled on a custom basis. The laboratory operator will no doubt be an expert on the materials used but not on their disposal. It is important for him to stay in touch with people familiar with disposal and provide them with detailed information. 

It is always surprising to find how even very small quantities of some chemicals can create contamination or waste disposal problems. As a result, such matters should be given high priority when planning a new or modified laboratory, purchasing new equipment, or introducing new procedures. 

However, lithinm aluminum hydride or zinc metal and HCl (5) are required as reducing agents to reduce the thiocyanate to the thiol. These reducing agents are stoichiometric reagents and aren t environmentally acceptable at this time because of their hazardous properties and waste disposal problems on a large manufacturing scale. 

Fuller, W.H., Movement of Selected Metals, Asbestos and Cyanide in Soils Applications to Waste Disposal Problems, EPA 600/2-77-020, NTIS PB 266 905, U.S. EPA, 1977. 

The fast reactor high level waste is accumulated at the reprocessing plants and retains its toxicity for only a few hundred years, rather than the tens of thousands of years ofthe spent fuel wastes from our present reactors,. Thus, the nuclear waste disposal problems are minimal and arrangements for disposal could be made on a global basis. 

The utility of such reagents in the oxidation processes is compromised due to their inherent toxicity, cumbersome preparation, potential danger in handling of metal complexes, difficulties encountered in product isolation and waste disposal problems. Immobilization of metallic reagents on solid supports has circumvented some of these drawbacks and provided an attractive alternative in organic synthesis because of the selectivity and associated ease of manipulation. Further, the localization of metals on the mineral oxide surfaces reduces the possibility of their leaching into the environment. 

Fusion reactions produce only short-lived radionuclides there would be no long-term waste-disposal problem. 

After equilibration, the amount of bound and free-labeled antigen can be measured, and a calibration curve can be used to determine the analyte. Radioactive labels have been extensively used because of the sensitivity of the measurement however, they have several disadvantages, such as the waste disposal problem and the unstable nature of reagents. CL tags were therefore considered attractive alternatives due to their low (excellent) detectability, which was not fully provided by most fluorescent labels. 

Ammonia may be produced and lost between deposition and collection of excreta in winter housing, during its storage and following land application. The treatment of excreta from winter-housed stock as a waste disposal problem rather than a fertilizer resource results in substantial loss of N as NH3. 

Solves the waste disposal problems created by land bans... 

Countries in the Middle East and Russia hold 70% of the world s dwindling reserves of oil and gas. Coal is the most abundant and widely distributed fossil fuel. Global natural gas reserves are large and currently yield a reserve/production ratio of 50 to 60 years. Nuclear power s share of worldwide electricity supplies has been steady at 16-17% for many years, but reactor safety and waste disposal problems are still matters of concern. 

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