Dosage-based application versus ratio-based approach for metal- and plant-based coagulants in wastewater treatment: Merits, limitations, and applicability

被引：34

作者：

Ahmad, Azmi ^{[1
,2
]}

Kurniawan, Setyo Budi ^{[1
]}

Ahmad, Jamilah ^{[1
]}

Alias, Jahira ^{[1
]}

Marsidi, Nuratiqah ^{[1
]}

Said, Nor Sakinah Mohd ^{[1
]}

Yusof, Aiman Syafiqah Mohd ^{[1
,4
]}

Buhari, Junaidah ^{[1
]}

Ramli, Nur Nadhirah ^{[1
]}

Rahim, Nurul Farhana Mohd ^{[1
]}

Abdullah, Siti Rozaimah Sheikh ^{[1
]}

Othman, Ahmad Razi ^{[1
]}

Abu Hasan, Hassimi ^{[1
,3
]}

机构：

[1] Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Dept Chem & Proc Engn, Bangi 43600, Selangor, Malaysia

[2] Community Coll, Dept Polytech Educ, Minist Higher Educ, Putrajaya 62100, Malaysia

[3] Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Res Ctr Sustainable Proc Technol CESPRO, Bangi 43600, Selangor, Malaysia

[4] Univ Kebangsaan Malaysia, Tasik Chini Res Ctr, Pekan 26690, Pahang, Malaysia

来源：

JOURNAL OF CLEANER PRODUCTION | 2022年 / 334卷

关键词：

Alternative technology; Alum; Coagulation; Pollution; Sludge; NATURAL COAGULANTS; REMOVAL; FLOCCULATION; PERFORMANCE; EFFLUENT; OPTIMIZATION; EXTRACTS; SEED;

D O I：

10.1016/j.jclepro.2021.130245

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The crisis on water resource and environmental pollution are forcing to upgrade conventional technology of wastewater treatment for water recycle and reuse. Coagulation-flocculation is the common wastewater treatment that has shown efficient removal performance based on various coagulants from metal-to plant-based compounds. Dosage application is the widely used method to apply coagulant in coagulation-flocculation treatment. This study introduces a new ratio-based approach using theoretical calculation for coagulant dosing in wastewater treatment. A comparative study of total suspended solid removal performance by dosage-based application versus ratio-based approach is performed by evaluating the R-2 value. A demonstration on the dosage-based application versus ratio-based approach efficiencies is presented through a simulation of sludge production. Comparative analysis and simulation indicate that ratio-based approach has higher R-2 value and lower sludge production with low coagulant usage compared with dosage-based application for the same influent characteristic. Merits, limitations, applicability, and future approaches for ratio-based approach are detailed for upcoming research directions and technological development.

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