Leaching of Heavy Metals Using SPLP Method from Fired Clay Brick Incorporating with Sewage Sludge

Mechanical Engineering, Science and Technology International Conference

Kadir, Aeslina Abdul^1 ; Abdul Salim, Nurul Salhana^1 ; Sarani, Noor Amira^1 ; Izurin Rahmat, Nur Aqma^1

Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, Parit Raja, Batu Pahat Johor

86400, Malaysia^1

关键词: Environmental control;    Fired clay bricks;    Landfilling;    Sewage sludge from wastewater treatment plants;    Synthetic precipitation leaching procedures;    Trace metal;    Wastewater treatment process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/203/1/012011/pdf
DOI  :  10.1088/1757-899X/203/1/012011

来源: IOP

【 摘 要 】

Sewage sludge is a by-product generate from wastewater treatment process. The sewage sludge contains significant trace metal such as Cr, Mn, Ni, Cu, Zn, As, Cd and Pb which are toxic to the environment. Sewage sludge is disposed of by landfilling method. However, this option not suitable because of land restriction and environmental control regulations imposed. Therefore, sewage sludge from wastewater treatment plant was incorporated into fired clay brick to produce good quality of brick as well as reducing heavy metals from sludge itself. Sewage sludge with 0%, 1%, 5%, 10% and 20% of were incorporated into fired clay bricks and fired at 1050°C temperature with heating rates of 1°C/min. The brick sample then crushed and sieved through 9.5 mm sieve for Synthetic Precipitation Leaching Procedure (SPLP). From the results, incorporation up to 20% of sewage sludge has leached less heavy metals and compliance with USEPA standard.