Sand Cap Placement and Cap Thickness Monitoring: A Case Study at a Confined Disposal Facility

2015 ◽  
Vol 25 (3) ◽  
pp. 69-84 ◽  
Author(s):  
Hanne Vidgren ◽  
Aud Helland ◽  
Aivo Lepland
Keyword(s):  
Disposal Facility ◽  
Sand Cap

A hydrochemical and isotopic case study around a near surface radioactive waste disposal

2007 ◽  
Vol 95 (1) ◽  
Author(s):  
Zs. Szántó ◽  
É. Svingor ◽  
I. Futó ◽  
L. Palcsu ◽  
M. Molnár ◽  
...  
Keyword(s):  
Radioactive Waste ◽  
Waste Treatment ◽  
Radioactive Waste Disposal ◽  
Ion Chemistry ◽  
Continuous Transition ◽  
Near Surface ◽  
Disposal Facility ◽  
Treatment And Disposal ◽  
Site Characterisation

As part of the site characterisation program for the near surface radioactive waste treatment and disposal facility (RWTDF) at Püspökszilágy, Hungary, water quality and environmental isotope investigations have been carried out. Water samples for major ion chemistry, tritium,The chemical composition of groundwaters presented a continuous transition from waters situated on one side to waters on the top and on the other slope of the disposal suggesting the mixing of the three hydrochemical “endmembers”.Most of δ

scholarly journals Unsaturated mine tailings disposal

2021 ◽  
Vol 44 (3) ◽  
pp. 1-12
Author(s):  
Luciano Oldecop ◽  
Germán Rodari
Keyword(s):  
Mine Tailings ◽  
Void Ratio ◽  
Mine Wastes ◽  
Laboratory Studies ◽  
Air Drying ◽  
Tailings Disposal ◽  
Disposal Facility ◽  
Complex Process ◽  
Two Stages

Filtered tailings is the disposal technology that is most likely to yield an unsaturated state of the tailings. Such state has important benefits. A dam to contain the mine wastes is no longer needed, the risk of polluting seepage is minimized, and liquefaction of tailings is prevented. Filtering also allows most of the water mixed with the tailings to be recovered and reused in the process. The resulting material can be handled with traditional soil moving equipment to form a stack, for instance. While the idea is simple, the multiple phenomena involved in the tailings unsaturated disposal make up a complex process. The present work is based on a case study, the Casposo Mine filtered tailings disposal facility, located in the central Andes of Argentina. Throughout ten years of operation, a series of field and laboratory studies have been carried out to characterize the phenomena that intervene in the disposal of filtered tailings. Two stages were studied in detail: air drying upon tailings discharge and tailings compression under the weight of the subsequent lifts of the stack. Flocculant agents were found to have an outstanding influence in the tailings behaviour. Because of the multiple influencing factors, the process outcome (namely, the tailings water content and their void ratio) is highly variable. To deal with such variability, projects must include enough redundancy. In this regard, the case study’s incorporation of waste rock layers interspersed between tailings layers was a successful experience.

Geochemical and VOC-constraints on landfill gas age and attenuation characteristics: A case study from a waste disposal facility in Southern California

2016 ◽  
Vol 53 ◽  
pp. 144-155 ◽  
Author(s):  
Benjamin Hagedorn ◽  
Henry B. Kerfoot ◽  
Mark Verwiel ◽  
Bruce Matlock
Keyword(s):  
Waste Disposal ◽  
Southern California ◽  
Landfill Gas ◽  
Disposal Facility ◽  
Attenuation Characteristics

Managing hauled industrial wastewater in Jordan, a case study

2015 ◽  
Vol 12 (2) ◽  
pp. 155-167
Author(s):  
Bashaar Y. Ammary
Keyword(s):  
Industrial Wastewater ◽  
Design Methodology ◽  
Poor Country ◽  
Management Program ◽  
Sewer System ◽  
Content Type ◽  
Disposal Facility ◽  
Key Issues ◽  
To Receive

Purpose – The purpose of this paper is to describe a project intended for the implementation of a formal cradle to grave management program for hauled or trucked industrial wastewater in Jordan. Design/methodology/approach – Industries that do not have treatment onsite or that treat their industrial wastewater to a level not suitable for disposal into sewers or those that do not have access to sewer system have to haul their industrial wastewater to a treatment or disposal facility. At present most industries haul their industrial wastewater to a solid waste landfill site specially designated to receive industrial wastewater. In the program presented here, a manifest system for these industries have been introduced and implemented in a number of pilot projects. Findings – A manifest form has been devised and used in a number of pilot demonstrations that enabled the formulation of specific conclusions and recommendations. Before implementing this manifest a program that includes training, awareness, governmental enforcement and commitment, and upgrading of disposal sites and laboratories capabilities has to be implemented. Originality/value – Management of hauled industrial wastewater is very important in a water poor country like Jordan. The introduction of a manifest system and the identification of the problems associated with its implementation are key issues for sustainable development in Jordan.

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