Coagulation-Flocculation Process in Landfill Leachate Treatment: Focus on Coagulants and Coagulants Aid

International Conference on Innovative Research - ICIR Euroinvent 2017

Kamaruddin, M.A.^1,2 ; Abdullah, M.M.A.^2,3 ; Yusoff, M.S.^4 ; Alrozi, R.^5 ; Neculai, O.^6

Environmental Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang

11800, Malaysia^1

Center of Excellence Geopolymer and Green Technology (CEGeoGTEch), Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^2

Faculty of Engineering Technology, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^3

School of Civil Engineering, Universiti Sains Malaysia, Nibong Tebal, Penang

14300, Malaysia^4

Faculty of Chemical Engineering, Universiti Teknologi MARA, Penang, Malaysia^5

Department of Civil and Industrial Engineering, Faculty of Civil Engineering and Building Services, Technical University Gheorghe Asachi of Iai, Romania^6

关键词: Biological process;    Chemical oxidation;    Coagulation-flocculation process;    Flocculation and sedimentation;    Landfill leachate treatment;    Physico-chemical treatment;    Suspended particles;    Treatment methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/209/1/012083/pdf
DOI  :  10.1088/1757-899X/209/1/012083

来源: IOP

【 摘 要 】

In physico-chemical treatment, the separation of suspended particles from the liquid phase is usually accomplished by coagulation, flocculation and sedimentation. Coagulation-flocculation processes have been widely used as alternative treatment to remove leachate pollutants such as BOD, COD, TSS, heavy metals, colour, and nitrogen compounds prior to other treatment methods. It is often coupled with treatment methods like biological process, chemical oxidation, adsorption or filtration to achieve desirable effluent quality. In spite of being economical, the dewatering and disposal of the precipitated sludge could be laborious and time-consuming. In this manuscript, brief discussions on coagulant and coagulants aid in landfill leachate treatment is discussed with respect to their mechanism.