Recovery, reuse, recycling

The main driving force towards recycling has been national and international plastic waste management policy. Within the EU, the policy is based on waste hierarchy, meaning that the first choice is waste prevention and then waste recovery (reuse, recycling and energy recovery), with preference to material recovery. Thus the type of legislation found is ... 

The economic balance must be considered between recovery, reuse, and modification of a waste material or by-product and its disposal. The future is expected to bring iacreases ia the practice of recycle, recovery, modification, and upgrading of wastes of all sorts, and a reduction ia disposal by iaciaeration (qv), biochemical oxidation, or discharge to the environment (see Recycling). 

You must report the location of the POTW in Section 1 in Part II of Form R. Do not report any information about the on-site treatment plant in this section. You are not required to report the location of the off-site, privately owned recovery firm or provide any information concerning off-site recovery because recycling or reuse of toxic chemicals is exempt from reporting. 

Has the potential for reuse/recycle/recovery been considered for all materials in use or likely to be introduced ... 

Acid reuse, recycle, and recovery systems are extensively used in the acid pickling industry. Typical industrial acid reuse and recovery systems include the following ... 

In EU countries, the principle behind directives for collection, recovery, and reuse has been EPR, making producers responsible for the take-back of e-waste. Canada and Australia are among other countries developing systems based on these principles. Japan s Reuse, Recycling and Recovery system differs in some ways, while still promoting take-back by manufacturers. The most salient difference is the direct payment of recycling costs by Japanese consumers. 

In 2003, the European WEEE-Directive 2002/96/EG [5] was implemented to reduce the amount of electronic waste and foster reuse, recovery and recycling of electric and electronic equipment. Closely connected to this, the restriction of hazardous substances Directive 2002/95/EG [6] (RoHS) was adopted by the EC in 2003 with the aim to restrict the use of hazardous substances in the manufacture of electric and electronic products. 

The handling of wastes in this case refers to the prevention, reuse, recycling, recovery, disposal and the treatment of electrical and electronic wastes. 

There is a definite need, therefore, for systems that combine the advantages of high activity and selectivity of homogeneous catalysts with the facile recovery and recycling characteristic of their heterogeneous counterparts. This can be achieved by employing a different type of heterogeneous system, namely liquid-liquid biphasic catalysis, whereby the catalyst is dissolved in one liquid phase and the reactants and product(s) are in a second liquid phase. The catalyst is recovered and recycled by simple phase separation. Preferably, the catalyst solution remains in the reactor and is reused with a fresh batch of reactants without further treatment or, ideally, it is adapted to continuous operation. 

With increasing production volumes of chemicals predicted for the next 20 years [242], the economic advantages of the costly application of recovery, reuse and recycling may prove limited unless regulatory controls are put in place. Chemical bans are now being enforced to ensure that material recovery and recycling targets are technically and economically achievable [243, 244]. 

This treatment involves the addition of a demulsifier. For example acetone [85], n-butanol [130,131], and 2-propanol [132] have been found to be effective demulsifying agents for particular applications. Although this method is effective, it modifies the properties and prevents reuse because additional separation steps for recovery and recycling are required. Further recovery of the demulsifier by distillation is expensive [101,131]. 

Since the plastics are produced from petrochemicals derived from hydrocarbons, the motivation to reuse, recycle, or reprocess for energy recovery is primarily driven by an interest in conservation of petroleum resources. Economic factors are also important, but the potential saving of landfill space is more a perception rather than a reality [9]. Most of the categories of vinylic polymers discussed in this chapter are melt-formable, that is, they are thermoplastic materials, rather than nonmelting or thermosetting as are several of the condensation polymers discussed in Chapters 20 and 21. Thus,... 

Electrolysis is the reaction of either oxidation or reduction taking place at the surface of conductive electrodes immersed in an electrolyte, under the influence of an applied potential. This process is used for reclaiming heavy metals from concentrated aqueous solutions. Application to waste water treatment may be limited because of cost factors. A frequent application is the recovery for recycle or reuse of metals, like copper, from waste streams. Pilot applications include oxidation of cyanide waste and separation of oil-water mixtures. Gaseous emissions may occur and, if they are hazardous and cannot be vented to the atmosphere, further treatment, such as scrubbing, is required. Waste water from the process may also require further treatment. 

The fact that most packaging is one-trip is particularly true with pharmaceuticals, where the hazards of contamination and admixtures far outweigh other considerations. Hence the emphasis on recovery and recycling of the basic materials rather than reusing containers is to be welcomed. 

In the year 2000, the EU also instituted a broader approach of requiring that packaging adhere to what are referred to as essential requirements related to source reduction, minimal presence of hazardous substances, and the design and production to facilitate recovery, reuse, and recycling. Adoption of standards necessary to enforce the requirements is up to individual member states. Some countries have issued detailed standards (UK, Erance, Czech Republic) but the others have only much more general language [7]. In much of the developing world, open dumps are still a common method of waste disposal, even in major urban areas. The appreciable... 

SCH 13] Schmid A., Naquin A., Gourdon R., Incidence of the level of deconstruction on material reuse, recycling and recovery from end-of life vehicles an industrial-scale experimental Resources, Conservation and Recycling, vol. 72, pp. 118-126,2013. 

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