Investigative and management techniques for cement kiln dust and pulp and paper process wastes
- RMT, Inc., Okemos, MI (United States)
Knowledge of the characteristics of industrial process wastes allows for some innovative and cost savings techniques for investigating and managing these wastes over conventional methods. This paper explores examples of some of these techniques employed on cement kiln dust (CKD) and pulp and paper mill process waste. Similar to Portland Cement, unleached CKD contains free lime and sources of reactive silica and/or alumina. Thus, it can set up in the presence of water. Properly moisture-conditioned CKD has been successfully used in Michigan as a landfill liner and cover material on closures of old CKD piles and newly permitted fills. However, CKD also contains high concentrations of soluble salts and when improperly managed can generate a leachate with high total dissolved solid concentrations. Surface and downhole geophysical methods employing electromagnetic conductivity have proven effective in delineating the horizontal and vertical extent of groundwater plumes caused by releases of CKD leachate.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 302276
- Journal Information:
- Environmental Progress, Journal Name: Environmental Progress Journal Issue: 3 Vol. 17; ISSN 0278-4491; ISSN ENVPDI
- Country of Publication:
- United States
- Language:
- English
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