Recycling overview

Finn EN. 1980. Seminar on asphalt pavement recycling Overview of project selection. Transportation Research Record, Vol. 780, p. 8. Washington, DC TRB. 

Jankowski et al (1978) discuss in detail the great variety of gradientless reactors proposed by several authors with a pictorial overview in their paper. All of these reactors can be placed in a few general categories (1) moving catalyst basket reactors, (2) external recycle reactors, and (3) internal recycle reactors. 

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). 

Measured data on environmental concentrations and human health are scarce and scattered. Hence, environmental modeling was applied in order to generate an overview over the distribution of selected hazardous substances due to informal recycling in Guiyu. As all available models have a specific focus and various pros and cons, four models were chosen, which cover different geographical scales and address different environmental compartments and objectives in order to assess the potential risk of the selected chemicals to humans and the environment. 

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. 

In the first part of this overview, we focus on the recycling of dendritic catalysts. This part of the review is divided according to the various recycling approaches, and the sections are organized by way of the reactions catalyzed. In the second part, we describe examples in which attachment of the catalyst to the dendrimer framework results in modified performance. (Although we attempted to make a clear division between catalyst recycling and dendritic effects, these two properties cannot always be addressed separately.)... 

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)... 

For general overviews on polymer-supported catalysis, see a) Chiral Catalyst Immohilization and Recycling (Eds. D. E. DeVos, I. F. ). Vankelecom,... 

ID 13C NMR N/A Can provide a quantitative overview as to the carbon distribution. In the case of NOM, often 2D NMR is central to the interpretation of the ID NMR, which often contains considerable overlap. For quantitative data, the recycle delay (dl) should be >5 x T1 for the slowest relaxing component in the sample and inverse gated decoupling should be carried out, to prevent the transfer of XH NOE to the BC nuclei. 

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