Overview of Recycling

A concise overview of recycling modes for chiral catalysts, including enzymes, is given by Kragl et al. [15]. The technical aspects of the application of continuously operated chemical membrane reactors was covered by Woltinger et al. [16, 17]. 

JM Henshaw, W Han, AD Owens. An overview of recycling issues for composite materials. J Thermoplastic Composite Materials 9 4-20, 1996. 

Table 22.4 Overview of Recycling Data used in the Different Studies...

Henshaw J. M. and Han W. (1996), An Overview of Recycling Issues for Composites Materials , Journal of Thermoplastic Composite Materials, Vol.9, 4-20, January. 

Yamasaki Y. Overview of Recycling Technology in Textile Industry in Japan and the World. Japan Japan Chemical Fibers Association 2004. 

D. Mangaraj, Overview of Polymer Recycling Technologies, in Comprehensive Polymer Science, Second Supplement, G. Allen (Ed.), Pergamon, New York, 1989,... 

This paper provides a detailed overview of the current plastics waste management situation in Japan. It discusses material, chemical, and thermal recycling, and incineration versus landfill. It also provides a flow sheet showing recycling and the treatment/disposal of plastics waste in Japan in 1991. Conclusions are drawn, and the outlook for the future is considered. 5 refs. 

Smith, R. Overview of Feedstock Recycling of Commingled Waste Plastics, Presentation at the consortium for fossil fuel Liquefaction Science, P " Annual Meeting, Pipestem. WV, August, (1995). 

This protein or group of proteins is characterized as four to five bands on SDS—polyacrylamide gel electropherograms in the range from 58,(K)0 to 65,000, and by their ability to recycle with tubulin and stimulate microtubule assembly. [See pp. 33—37 of the review by Kirschner (1978) for an excellent overview of this protein and its properties]... 

Rautenbach and MeUis [75] describe a process in which a UF-membrane fermentor and a subsequent NF-treatment of the UF-permeate are integrated. The retentate of the NF-step is recycled to the feed of the UF-membrane reactor (Fig. 13.8). This process has been commercialised by Wehrle-Werk AG as the Biomembrat -plus system [76] and is well suited for the treatment of effluents with recalcitrant components. The process also allows for an additional treatment process, like adsorption or chemical oxidation of the NF-retentate, before returning the NF-retentate to the feed of the UF-membrane fermentor. Usually, the efficiency of these treatment processes is increased as the NF-retentate contains higher concentrations of these components. Pilot tests with landfiU leachates [75] and wastewater from cotton textile and tannery industry have been reported [77]. An overview of chemical oxygen demand (COD) reduction and COD concentrations in the permeate are shown in... 

The activities described in this section intend to minimize or avoid the release of chemicals into the stream wastewater by substitution, optimization, reuse, and recycling. Besides a lowering of the costs for following up general wastewater treatment, benefits due to minimization of chemical consumption are intended. As there are various specific problems arising from the particular treatment steps applied for different fibers, this section concentrates on the most important problems. Table 2 gives an overview of the annual production of textile fibers [10]. 

De novo synthesis of purines and pyrimidines yields the monophosphates IMP and UMP, respectively (see p. 188). All other nucleotides and deoxynucleotides are synthesized from these two precursors. An overview of the pathways involved is presented here further details are given on p. 417. Nucleotide synthesis by recycling of bases (the salvage pathway) is discussed on p. 186. 

An Overview of Solid Wastes Municipal Solid Wastes Municipal Solid Waste Disposal Landhlls Municipal Solid Waste Disposal Incineration Reducing Municipal Solid Wastes Recycling Vance Packard (1914-1996)... 

Another approach towards asymmetric heterogeneous catalysts is the immobilization of chiral homogeneous complexes via different methods. In this way the advantages of homogeneous catalysts (high activity and selectivity) and heterogeneous catalysts (easy recovery) can be combined. For a complete overview of this active research field the reader is referred to several reviews on this topic [50, 51]. The practical applicability of these catalysts is hampered by the fact that severe demands of recyclability and stability need to be obeyed. In certain cases promising results have been obtained as outlined here. 

The PVC industry is actively involved in the development of recycling solutions for contaminated mixed plastics waste streams with a high PVC content. Potential technologies for achieving this goal are tested at present at pilot scale. This paper provides an overview of the projects under investigation and the results obtained so far, while development work continues. 9 refs. 

Rott U, Minke R (1999) Overview of Waste-water Treatment and Recycling in the Textile Processing Industry, Wat. Sci. Technol. 

This book provides an overview of the science and technology of pyrolysis of waste plastics. The book will describe the types of plastics that are suitable for pyrolysis recycling, the mechanism of pyrolytic degradation of various plastics, characterization of the pyrolysis products and details of commercially mature pyrolysis technologies. 

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