Prevention pollutants

Finally, pollutiou-preveutiou measures can provide a company with the opportunity of looking their neighbors in the eye and truthfully saying that all that can reasonably Be done to prevent pollution is being done. In effect, the company is doing right by the environment. Is there an economic advantage to this It is not only a difficult question to answer quantitatively but also a difficult one to answer quahta-tively. The reader is left to ponder the answer to this question. 

It is mandatory for a good paint shop to control polluting fumes and treat wastewater before it is discharged into the drains. To do this, effluent treatment processes must be carried out to prevent pollution of the environment and contamination of ponds, rivers or farmlands, into which the wastewater is discharged. 

Joback, K. G. (1994). Solvent Substitution for Pollution Prevention. Pollution Prevention Via Process and Product Modifications, ed. M. El-Halwagi, and D. P. Petrides, 98-103. AIChE Symposium Series 303. New York American Institute of Chemical Engineers. 

Many producing facilities are located offshore or in other environmentally sensitive areas. In these areas, the use of dry (versus liquid-filled) transformers will eliminate the necessity of providing curbing and other containment systems to prevent pollution. Dry transformers are normally preferred for most production facility applications. Liquid-filled transformers should be considered, however, for high voltage and large units (particularly over several hundred kVA). 

While drain valves are installed to get rid of unwanted liquid, vent lines get rid of unwanted gas or vapor. They should be located so that the vapor is unlikely to ignite, so that damage is minimal if it does ignite, and so that people are not affected by the gas or vapor discharged. One fire destroyed a small plant. It started because the vent on a distillation column condenser discharged into the control room, possibly to prevent pollution of the surroundings, which had given rise to complaints about the smell [1] (see Section 2.11.3). 

There are significant opportunities for industry to reduce or prevent pollution at tlie source tlirough cost-effective changes in production, operation and raw materials use.. . . The opportmiities for source reduction are often not realized because existing regulations, and tlie industrial resources tliey require for compliance, focus upon treatment and disposal, rather tliaii source reduction.. . . Source reduction is fundamentally different and more desirable tlian waste management and pollution control. 

The average American home is responsible for more annual pollution than the average car. This often comes as a surprise because the pollution attributed to homes is produced miles away at a power plant or out-of-sight from roof exhaust flues. However, eveiy time someone flips a switch, activates the air conditioning, or takes a shower, pollution is being produced. There will be growing appreciation for energy efficient homes that help prevent pollution. 

Solid effluents arising from metallurgical operations occur principally in two forms fine particulate solids or dusts, and solid wastes. As an example, blast furnace gas may contain up to 170 kg of dust per ton of pig iron produced. Suitable methods must be devised for processing the solid effluents for two reasons (i) to prevent pollution of the environment and (ii) to recover their valuable content, if any. As far as the latter is concerned, reference may be drawn, as an example, to the recovery of rhenium from the exit gas from molybdenite roasting in a multiple-hearth furnace. 

Significant opportunities exist for industry to reduce or prevent pollution through cost-effective changes in production, operation, and raw materials use. In addition, such changes may offer industry substantial savings in reduced raw materials, pollution control, and liability costs, as well as protect the environment and reduce health and safety risks to workers. Where pollution prevention practices can be both environmentally beneficial and economically feasible, one would consider their implementation to be prudent. 

Recognizing the need to prevent pollution and minimize waste, governments, through their environmental protection agencies, should continue their catalytic role to promote, (with industry, research organizations and other relevant institutions) the establishment of a network that will allow the transfer of environmental protection technology. 

There are distinct advantages of these solvent-free procedures in instances where catalytic amounts of reagents or supported agents are used since they provide reduction or elimination of solvents, thus preventing pollution at source . Although not delineated completely, the reaction rate enhancements achieved in these methods may be ascribable to nonthermal effects. The rationalization of microwave effects and mechanistic considerations are discussed in detail elsewhere in this book [25, 193]. A dramatic increase in the number of publications [23c], patents [194—203], a growing interest from pharmaceutical industry, with special emphasis on combinatorial chemistry, and development of newer microwave systems bodes well for micro-wave-enhanced chemical syntheses. 

Chemical Engineering Progress 94, No. 12, Dec. 1998, p.59-64 SWITCH MATERIALS TO PREVENT POLLUTION... 

Pollution prevention is everyone s responsibility. Preventing pollution may be a new role for production-oriented managers and workers, but their cooperation is crucial. It is the workers themselves who must make pollution prevention succeed in the workplace. 

The OSPAR Contracting Parties have in the Convention for the Protection of the Marine Environment of the North-East Atlantic agreed to take all necessary steps to eliminate and prevent pollution AND to take the necessary measures to protect the maritime environment against the effects of human activities and to safeguard human health... 

Green chemistry refers to practices designed to prevent pollution and promote the sustainable use of natural resources. 

The Pollution Prevention Act was passed to focus on preventing pollution at the source rather than dealing with remediation or capture of pollutants. This led the EPA to start its Green Chemistry Program in 1991. See this chapter, Section 7. 

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