Title:

Optimizing stabilizer mixes for solidification of heavy metal-laden sludge from electroplating industry wastewater: A comprehensive study on operational parameters and microstructural analysis

Creator:

Lumina, Pushpa ; Kulkarni, Megha ; Khan, Mohammad Amir ; Alsubih, Majed ; Islam, Saiful ; Abdulhadi, Ahmed M. ; Mendhe, Vaishali

Subject:

solidification ; stabilization ; electroplating industry ; heavy metal-laden sludge ; operational parameters ; secure landfills ; microstructural study

Description:

This study focuses on optimizing stabilizer mixes for the solidification and stabilization (S/S) of heavy metal-laden sludge from the electroplating industry, with a dual objective: meeting secure landfill disposal standards and understanding the underlying S/S mechanisms. The research investigates the impact of operational parameters such as stabilizer dosage, curing time, and material composition on solidification efficiency using samples from an electroplating effluent treatment plant. Advanced analytical techniques, including Scanning Electron Microscopy (SEM) and X-ray Diffractometry (XRD), were employed to examine the microstructural changes in the stabilized matrices. The findings highlight the effectiveness of cement-based stabilizers and waste-derived pozzolanic materials, such as waterworks sludge and electroplating slurry, in achieving high unconfined compressive strength (UCS) and immobilizing heavy metals. The study also identifies sinter as a promising binder that transforms waste into durable, structurally sound products, offering a sustainable approach to waste management.

Place of publishing:

Koszalin

Publisher:

Politechnika Koszalińska

Date:

2025

Type:

artykuł w czasopiśmie

Language:

eng

Is part of:

Rocznik Ochrona Środowiska. Vol. 27, s. 96-109

Rights:

Biblioteka Politechniki Koszalińskiej

Access rights:

internet

License:

Creative Commons BY-SA 4.0