Remediation of hazardous effluent emitted from beneath newly constructed road systems and clogging of underdrain systems
- Purdue Univ., West Lafayette, IN (United States)
The Indiana Department of Transport used No. 53 recycled concrete for construction and repair of sections of I-70, I-65 and I-465. Effluents from beneath these sections were found to have a pH as high as 12 which is beyond the allowable limits. In addition, precipitates forming in the effluent were clogging some of the screens and water was backing up. It is also possible that similar scales are forming in the underdrain filter cloth and clogging the drains. The objective of the project is to determine the source and composition of the high pH water and determine the chemical mechanisms involved in the forming of the water, the precipitates and the deposits and the extent of the problem, i.e., the long-term leachability of the material. The project will further look at the various treatment options available to eliminate the high pH of water, cleanup of the clogged screens and develop methods for prevention of the problem in the future.
- OSTI ID:
- 395361
- Report Number(s):
- CONF-9505206-; TRN: IM9648%%484
- Resource Relation:
- Conference: 50. Purdue industrial waste conference, W. Lafayette, IN (United States), 8-10 May 1995; Other Information: PBD: 1996; Related Information: Is Part Of Proceedings of the 50. industrial waste conference; Wukasch, R.F. [ed.]; PB: 861 p.
- Country of Publication:
- United States
- Language:
- English
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