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Author : Keith E. Bobay
Publisher : Unknown
Page : 84 pages
File Size : 41,9 Mb
Release : 1988
Category : Groundwater
ISBN : UCR:31210010248977
Author : J. M. Walker,W. D. Burge,R. L. Chaney,E. Epstein,J. D. Menzies
Publisher : Unknown
Page : 256 pages
File Size : 53,5 Mb
Release : 1975
Category : Sewage disposal
ISBN : UOM:39015104978229
Author : Anonim
Publisher : Unknown
Page : 200 pages
File Size : 42,9 Mb
Release : 1993
Category : Sewage
ISBN : PSU:000022052858
Author : Anthony Geinopolos,Milwaukee (Wis.). Sewerage Commission
Publisher : Unknown
Page : 80 pages
File Size : 40,6 Mb
Release : 1971
Category : Freeze-drying
ISBN : UCSD:31822025273467
Data was obtained for a direct comparison between the freeze conditioning and dewatering technique and the conditioning and dewatering methods presently employed at Milwaukee, Wisconsin. The laboratory investigation phase resulted in a freeze-conditioning system consisting of the following process elements: Flotation thickening prior to freezing, Freezing in thin sheets, Thawing of the frozen product, and Dewatering of the thawed sludge. The objective of the engineering design phase was the development of a freeze-conditioning system to handle three tons dry solids per day of activated sludge. Although the freeze conditioning concept, from a technical standpoint, has definite merit as a sludge conditioning process, the equipment capital costs, operating costs, and space requirements are appreciably greater for the freeze conditioning process than for the present chemical conditioning method.
Author : Eva Kocbek
Publisher : CRC Press
Page : 159 pages
File Size : 41,9 Mb
Release : 2022-02-28
Category : Science
ISBN : 9781000547641
Sludge transportation costs can represent a large fraction of the expenses associated with municipal and faecal sludge management. These costs can be mitigated through the use of thermal drying approaches to reduce the sludge volume. This thesis described the application of a novel microwave-based pilot-scale unit as an alternative technology for the sanitisation and drying of sludge from municipal wastewater treatment plants and on-site sanitation facilities. The potential economic benefits of volumetric heating, moisture levelling, and increased liquid and vapour migration from the interior to the surface of the product underpins the increasing interest in the use of microwave technology during sludge treatment processes. According to the findings of this study, these factors lead to faster processing times, improved drying rates, and a reduced physical footprint. Furthermore, microwave technology operates as a standalone treatment unit. When coupled with mechanical dewatering techniques and membrane separation technology, it can increase the reliability of the technology employed in the treatment of sludge while recovering valuable resources through an agricultural or thermochemical application such as (co-) combustion. The results of this work demonstrate the strong feasibility of applying microwave-based technology within initiatives designed to protect the environment and safeguard public health.
Author : Robert C. Streeter,R. K. Young,Bituminous Coal Research, Inc,Richard Alvin Glenn
Publisher : Unknown
Page : 136 pages
File Size : 45,9 Mb
Release : 1971
Category : Acid mine drainage
ISBN : UOM:39015002032954
Bench scale batch experiments were performed on sludges obtained from line neutralization of coal mine drainage in an attempt to alleviate present problems in sludge handling and disposal. Tests were of an exploratory nature and did not afford sufficient data for cost analyses. Ferro Magnetic sludge densification, filter aids, coagulant aids, heating, freeze drying, and coprecipitation of calcium carbonate through addition of CO2 were tested. Of these, freeze drying, CO2 addition, and ferro magnetic treatment were shown to be feasible alternatives to present disposal methods. Each of these methods resulted in settled sludge volume reduction of approximately 90% and increases in sludge solids contents of from 0.5 to about 5% after 30 min. settling periods. The ferro magnetic process has the advantages of possible recovery of a useful product, and elimination of costly settling lagoons, but is very sensitive to aluminum and requires a considerable amount of heat. Sludge freezing is the simplest conceptual approach and is apparently effective for any lime produced sludge. The CO2 addition method offers the possibility of partial recovery and recycling of both CaO and CO2 through sludge calcination.
Author : Dr. H.S. Bhatia
Publisher : The Readers Paradise
Page : 250 pages
File Size : 49,7 Mb
Release : 2020-06-28
Category : Nature
ISBN : 9789389055276
Salient Features Summary of industrial, wastes, its origin, character and treatment Typical stream discharge, regulations Industrial wastes and their nature Reduction, recovery and reuse of water and waste waters Methods of separate treatment Pre and primary treatment Industrial waste water treatment Industrial waste disposal Miscellaneous treatment processes Pollution hazards Sludge disposal Volume reduction Simple guide and code of practice for better house keeping and pollution control in electroplating industry
Author : Royal Scottish Society of Arts
Publisher : Unknown
Page : 632 pages
File Size : 41,6 Mb
Release : 1891
Category : Industrial arts
ISBN : UOM:39015063573201
Vol. 1- includes the proceedings of the society.
Author : Anonim
Publisher : Unknown
Page : 434 pages
File Size : 47,8 Mb
Release : 1888
Category : Building
ISBN : UOM:39015014836210
Author : Anonim
Publisher : Unknown
Page : 770 pages
File Size : 42,7 Mb
Release : 1888
Category : Building
ISBN : CUB:U183026449418
Author : Anonim
Publisher : Unknown
Page : 716 pages
File Size : 53,9 Mb
Release : 1972
Category : Hydraulic engineering
ISBN : COLUMBIA:CU16706021
Author : David W. Shultz
Publisher : Unknown
Page : 308 pages
File Size : 53,7 Mb
Release : 1980
Category : Hazardous substances
ISBN : UIUC:30112045812721
Author : Anonim
Publisher : Unknown
Page : 102 pages
File Size : 54,5 Mb
Release : 1918
Category : Public health
ISBN : UFL:31262083029487
Author : Mislin,Ravera
Publisher : Birkhäuser
Page : 144 pages
File Size : 44,9 Mb
Release : 2013-03-08
Category : Science
ISBN : 9783034872386
Author : Anonim
Publisher : Unknown
Page : 366 pages
File Size : 40,8 Mb
Release : 1995-11
Category : Electronic
ISBN : UVA:X006051518