• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 25
  • 5
  • 5
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 49
  • 49
  • 23
  • 9
  • 7
  • 6
  • 6
  • 6
  • 5
  • 5
  • 4
  • 4
  • 4
  • 4
  • 4
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Particle and bubble interactions in flotation systems

Emerson, Zachery Ian, January 2007 (has links) (PDF)
Thesis (Ph.D.)--Auburn University, 2007. / Abstract. Vita. Includes bibliographic references (ℓ. 106-110)
2

An econometric-linear programming model of the U.S. paper and paperboard industry, with particular attention to waste paper recycling

Colletti, Joedy Paul. January 1978 (has links)
Thesis--University of Wisconsin--Madison. / Typescript. Vita. Includes bibliographical references (leaves 166-169).
3

A feasibility study of the recycling of newsprint in the Lower Mainland area of British Columbia

Johannson, John Ivan January 1971 (has links)
Many countries in the world today have reached the point of full utilization of their forest resources, to satisfy their need for lumber and pulp and paper products. Others have reached the point where their consumption is far in excess of the capacity their domestic forest stands can sustain and they are net importers of these products. Still fewer have developed the practice of recycling these products to any appreciable extent. Canada and United States are approaching full utilization and have only accomplished a recycling rate of approximately 20% of paper and paperboard products. On the other hand conservationists are calling for more efficient utilization of resources, ecologists are calling for less waste and less pollution, while the burden on city garbage collection facilities, 50% of which is paper products, is increasing exponentially. In this thesis the technical processes required to make first quality newsprint from recycled newspaper are shown to be available. The economics of such a plant is examined in detail leading to the judgment that it is economically sound. The conclusion is reached that a 300 ton/ day newsprint mill can be entirely supported by locally generated waste newspaper in a city of three million population or over. Furthermore, it is concluded that if the collection and transportation of waste newspapers is not impeded by governmental regulations or unanticipated competition in the feeder cities, such a plant is still economically feasible after allowing for water barge transportation of the raw materials as far as 200 miles. / Business, Sauder School of / Graduate
4

The design of a paper waste handling system.

Kroonstuiver, Jacob January 1993 (has links)
A project report submitted to the Faculty of Engineering, University of the Witwatersrand, in partial fulfilment of the requirements for the degree of Master of Science in Engineering. / The design of a waste handling system is closely related to the functioning of the manufacturing system that it serves. The study considered the design of a waste handling system at the factory Printpak Gravure in Industria. The system in use was considered cost inefficient, The system was examlned, operating variables were determined, A model of the system was constructed so that the effectiveness of alternative systems could be compared. The replacement system selected reduced machine downtime and resulted in a lower yearly operating cost. / Andrew Chakane 2018
5

De-inking toner-printed paper by selective agglomeration /

Snyder, Bret Alan, January 1996 (has links)
Thesis (Ph. D.)--University of Washington, 1996. / Vita. Includes bibliographical references (leaves [127]-137).
6

Flotation deinking of toner-printed papers /

Schmidt, Dale C. January 1996 (has links)
Thesis (Ph. D.)--University of Washington, 1996. / Vita. Includes bibliographical references (leaves [95]-101).
7

Modelling and simulation of paper recycling processes

Promboon, Warot. January 1996 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1996. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 106-108).
8

The design of a paper waste handling system.

Kroonstuiver, Jacob. January 1993 (has links)
A project report submitted to the Faculty of Engineering, University of the Witwatersrand, in partial fulfilment of the requirements for the degree of Master of Science in Engineering. / The design of a waste handling system is closely related to the functioning of the manufacturing system that it serves. The study considered the design of a waste handling system at the factory Printpak Gravure in Industria. The system in use was considered cost inefficient, The system was examlned, operating variables were determined, A model of the system was constructed so that the effectiveness of alternative systems could be compared. The replacement system selected reduced machine downtime and resulted in a lower yearly operating cost. / Andrew Chakane 2019
9

A systems study of waste paper recovery and recycling

Ho, Tat Kin January 1982 (has links)
This thesis investigated the technological economics of waste paper recovery and recycling in UK. The major problem in waste paper recycling is still the removal of contraries, although technological developments have so far been able to remove some of them. The costs incurred by the local authorities in recovering waste paper were investigated. Local authority costing was found to be inconsistent and many of them did not include all the relevant indirect costs and savings, so that many local authorities claimed to be making heavy losses in their operations. Full accounting incorporating all the relevant indirect costs and savings have shown that most local authorities incurred much smaller losses and in some cases profited from their waste paper recovery operations. A general computer model was developed to allow local authorities to check the viability of their on-going operations and another computer model was developed for an investment appraisal of a proposed waste paper recovery operation. Multiple regression models were developed to forecast the demand of waste paper in the short term and the long term. The cost to the mill in recycling waste paper was also examined. Waste paper recycling can only be increased by improving demand for waste paper based products. Various alternatives for diversifying the markets for waste paper were investigated, particularly those outside the paper and board industry. The government's role in helping to inc~ease waste paper recovery and recycling was examined and some government actions that could be taken were proposed.
10

Development of composites materials from waste paper and plastic

James, Aaron. January 2006 (has links)
Thesis (PhD) - Swinburne University of Technology, Industrial Research Institute Swinburne - 2006. / A thesis submitted for the degree of Doctor of Philosophy, Industrial Research Institute Swinburne, Swinburne University of Technology - 2006. Typescript. "August 2006". Includes bibliographical references (p. 361-389).

Page generated in 0.0433 seconds