Floc behavior and removal mechanisms of cross-linked Durio zibethinus seed starch as a natural flocculant for landfill leachate coagulation-flocculation treatment

Mohd Suffian Yusoff, Hamidi Abdul Aziz, Mohd Faiz Muaz Ahmad Zamri, Fatihah Suja`, Ahmad Zuhairi Abdullah, Noor Ezlin Ahmad Basri

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

This study investigated the behavior and mechanisms of cross-linked Durio zibethinus seed starch (CDSS) flocculants for landfill leachate treatment. A physical-chemical treatment method of coagulation-flocculation process and starch modification were implemented in treating stabilized leachate from Matang Landfill, Perak, Malaysia. In practical, the removal performance of color, COD, suspended solid and turbidity for CDSS flocculants were evaluated by combining with primary coagulant of polyaluminium chloride (PAC). In this study, the application of crosslinking modification for Durio zibethinus seed waste starch flocculants showed good improvement. The impurities removal for colour, COD, suspended solid and turbidity were increased by the addition of CDSS flocculants. Furthermore, the average size of the floc was also increased from 60.24 µm to 89.5 µm. Despite, the addition of CDSS flocculants produced a reduction of PAC coagulant from 2700 mg/L to 2200 mg/L, with 500 mg/L reduction on the PAC dosage dependency. Therefore, these results affirmed the potentials of crosslinked modification for Durio zibethinus seed waste starch flocculants in landfill leachate treatment.

Original languageEnglish
Pages (from-to)362-372
Number of pages11
JournalWaste Management
Volume74
DOIs
Publication statusPublished - 1 Apr 2018

Fingerprint

flocculation
starch
coagulation
seed
chloride
turbidity
flocculant
removal
landfill leachate
leachate
landfill

Keywords

  • Crosslinking modification and leachate treatment
  • Durio zibethenus
  • Natural flocculants

ASJC Scopus subject areas

  • Waste Management and Disposal

Cite this

Floc behavior and removal mechanisms of cross-linked Durio zibethinus seed starch as a natural flocculant for landfill leachate coagulation-flocculation treatment. / Yusoff, Mohd Suffian; Aziz, Hamidi Abdul; Zamri, Mohd Faiz Muaz Ahmad; Suja`, Fatihah; Abdullah, Ahmad Zuhairi; Ahmad Basri, Noor Ezlin.

In: Waste Management, Vol. 74, 01.04.2018, p. 362-372.

Research output: Contribution to journalArticle

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