Abstract
"ENGINEER", established in 1973 by The Institution of Engineers, is a Journal for dissemination of Engineering knowledge, published quarterly.Cover DescriptionCover images show a schematic diagram of a Pumped-Storage Hydroelectricity (PSH) facility and one of the promising sites for PSH in Sri Lanka. The latter image was obtained from the publicly available JICA report on “Development Planning on Optimal Power Generation for Peak Demand in Sri Lanka”. The Institution of Engineers, Sri Lanka acknowledges JICA for the image. If you are interested in contributing an Original Technical Paper based on research by the author(s) (intended for Section I) or an Original Article of Professional or Technical interest related to Engineering. (Section II) to this journal please go through the publication checklist which can be downloaded from here.
Highlights
1.1 Background Heavy metal pollution is frequent and critical in environmental deterioration, in groundwater and surface water
It can be concluded that a composite made of Dewatered Alum Sludge (DAS), Washed Quarry Dust (WQD), Washed Sea Sand (WSS) and Red Soil (RS), and Bio Char (BC) and Saw Dust (SD) has the capacity to remove heavy metals from groundwater contaminated by landfill– leachate
The heavy metal removal is executed by Fe, Al and Si oxides together with phenolic structures present with the above reactive materials
Summary
1.1 Background Heavy metal pollution is frequent and critical in environmental deterioration, in groundwater and surface water. It occurs naturally or artificially and increases over time [1]. The most common examples for heavy metals in the landfill-leachate and water bodies are lead (Pb), copper (Cu), zinc (Zn), cadmium (Cd), ferrous (Fe), manganese (Mn), arsenic (As) and chromium (Cr) [1], [5]. They are the most threatening constituents found in the landfill-leachate, attributing to their persistence in the environment. Several degenerative diseases in the same systems occur as chronic heavy metal exposure and may increase the risk of some cancers [8]
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