IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR Asia Pacific Division Proceedings : 19th IAHR APD Congress, Hanoi 2014 : Session 1: ENVIRONMENTAL HYDRAULICS : POSSIBILITY OF RE-USING OYSTER SHELLS IN ACIDIC WASTEWATER TREATMENT
POSSIBILITY OF RE-USING OYSTER SHELLS IN ACIDIC WASTEWATER TREATMENT
Author : DUNG. TRAN MINH(1), NHAN. PHAM THI THANH(2), QUANG. HOANG HA(3) & HUYEN. PHAM THANH(4)
With CaCO3 component made up to 95% (Davis T.A et al., 2000), oyster shells are similar in composition with limestone. The objective of this research is to present the capability of oyster shells in treating acidic wastewater from Thanh Thuy metal craft village. Based on jar test experiments to find the optimum conditions for the process including: dimension of shells, calcination time, calcination temperature, volume of shells and exposure time. The experimental results were demonstrated that: shells sized from 2 to 5 centimeters; calcinated in 6000C in 1 hour, brought up better efficiency to acidic wastewater treatment. According to above conditions, researcher found the optimum shells volume, exposure time to check the correctness of the experiments about increasing pH and reducing color, iron in wastewater. Oyster shells have implications in environmental protection, treatment cost saving and contributing the diversity of natural resources.
File Size : 580,095 bytes
File Type : Microsoft Word Document
Chapter : IAHR Asia Pacific Division Proceedings
Category : 19th IAHR APD Congress, Hanoi 2014
Article : Session 1: ENVIRONMENTAL HYDRAULICS
Date Published : 11/03/2015
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