Work

Coagulation Performance of Hydrolysed (Alum) and Pre-Hydrolysed (PAC) Coagulants for Ammoniacal Nitrogen (AN) Removal from Matured Leachate

Year: 2025

Type: conference-paper

Abstract: Coagulation is commonly used in removing pollutants from matured leachate because of the low biodegradability of leachate that only suits the physical-chemical treatment method. Coagulant types are affecting the removal of pollutants as a consequence of leachate variability characteristics. This research aimed to assess the performance of hydrolysed alum (aluminium chloride) and pre-hydrolysed PAC (polyaluminium chloride) coagulants in AN removal from matured leachate under dosage, pH and settling time. It was found that the optimal conditions for hydrolysed alum were obtained at a dosage of 3000 mg/L, pH 4, settling time 30 minutes with 22% AN removal meanwhile for pre-hydrolysed PAC coagulants were obtained at a dosage of 2000 mg/L, pH 7, time of 20 minutes with 29% AN removal respectively. In conclusion, pre-hydrolysed PAC coagulants performed better in AN removal than hydrolysed alum coagulants.

Source: IOP Conference Series Earth and Environmental Science

DOI: 10.1088/1755-1315/1453/1/012055

Authors: M.I.H.M Hazmee, N.S.M Zin, L.W.M Zailani, N.A.N.A Rasid

Institution: Tun Hussein Onn University of Malaysia

Language: English

Topic: Coagulation and Flocculation Studies

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: diamond

OpenAlex ID: W4407876848

FWCI: 4.352

Cites: 26

Cited by: 1

Related to: 10