Utilizing Steel Slag in the Removal of Suspended Solids from Dewatered Construction Water
Abstract
Construction dewatering is an operation used to remove shallow groundwater that
infiltrates construction sites. After recovering this water from the construction sites, the
water is either discharged to the sea, injected in deep groundwater aquifers, or treated
and reused in some other applications. However, municipal and industrial application of
this water is unfeasible due to its poor quality. Thus, in this study, dewatered construction
water is being treated utilizing waste steel slag in order to improve the quality of the
water. The pH of the dewatered construction water used for this study was 7.59 and the
average diameter of steel slag used was 425 nm. For coagulation, the impact of the mass
of steel slag and the contact time on the quality of dewatered construction water were
studied. By using 5gm/L of steel slag, more than 85% of the total suspended solids and
turbidity were removed within 30 minutes.
Collections
- Civil and Environmental Engineering [851 items ]
- Theme 3: Geotechnical, Environmental, and Geo-environmental, Engineering [21 items ]