Solidification and stabilization of the incinerated wastewater sludge from textile industry

This paper describes the investigation of solidification and stabilization (S/S) process for the safe disposal of incinerated wastewater sludge produced from a textile industry in Penang, Malaysia. Physical and chemical properties of the samples were first characterized. Various ratios of ordinary P...

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Bibliographic Details
Main Authors: Aziz, Hamidi Abdul, Ghazali, Miskiah Fadzilah, Omran, Abdelnaser, Umar, Muhammad
Format: Conference Proceeding
Language:English
Subjects:
Aluminum
Cement
Chemical properties
Compressive strength
Copper
Iron
Leaching
Organic chemistry
Portland cements
Sludge
Solidification
Stabilization
Textile industry
Titanium
Toxicity
Waste disposal
Wastewater
Zinc
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Summary:This paper describes the investigation of solidification and stabilization (S/S) process for the safe disposal of incinerated wastewater sludge produced from a textile industry in Penang, Malaysia. Physical and chemical properties of the samples were first characterized. Various ratios of ordinary Portland cement (OPC) as a binder were used to immobilize the metals. The leachability of metals in these cement-based waste materials was studied by standard toxicity characteristic leaching procedure (TCLP) and the mechanical strength was tested by a compressive strength test. TCLP results showed the ability of OPC to immobilize various metals such as Zn, Cu, Fe, Al, Ti, and K within the limits set by USEPA and Malaysia Environment Quality Act, 1974. However, the strength of the solidified matrixes was generally lower than the control specimens, ranging from 1-23 Mpa, which was well above the specified limit of 414 kPa for such matrices for their disposal in landfills.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5005709