Colour removal from landfill leachate by coagulation and flocculation processes

Aziz, Hamidi Abdul; Alias, Salina; Adlan, Mohd Nordin; Faridah, Faridah; Asaari, A.H.; Zahari, Mohd

doi:10.1016/j.biortech.2005.11.013

Cited by 231 publications

(138 citation statements)

References 6 publications

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“…While for this study, almost the same removal of COD (66%) and color(95%) at the optimum pH of 6was observed. In addition, 94% of color was recorded by Salina et al, for semi-aerobic leachate at pH 4 at 800 mg/L IC dose [6].…”

Section: Influence Of Phmentioning

confidence: 91%

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Removal of Color, Suspended Solids, COD and Ammonia from Partially Stabilize Landfill Leachate by Using Iron Chloride through Coagulation Process

Zin¹,

Aziz²,

Adlan³

et al. 2013

IJET

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Abstract-Sufficient treatment of leachate is vital before it is discharged into receiving water bodies. MLS leachate is characterized as partially stabilized leachate. Therefore, coagulation is a fair treatment to degrade pollutants in MLS leachate. The aim of this study was to evaluate the optimum coagulation conditions of dose and pH of iron chloride for MLS leachate by using jar test. The influence of iron chloride dose, resulted in percentage removal of SS (97% at 1500 mg/L), color (95% at 1500 mg/L), COD (66% at 2000 mg/L) and NH3-N(13% at 3500 mg/L). While theaffect of pH, SS (94% at pH6), color(95% at pH6), COD(66% at pH 6) and NH3-N(56% at pH 6) were observed. Optimum dose and pH at 1500 mg/L and 6 were selected for SS, color and COD.Meanwhile,dose 3500 mg/L and pH 12 were selected for the optimum coagulation condition for NH3-N removal. Overall, treatment of the MLS leachate by the coagulation process with addition of IC was effective for SS, color and COD but weak in reducing NH3-N.

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Section: Influence Of Phmentioning

confidence: 91%

“…Numerous studies on the application of coagulant for partially stabilized leachate had been reported by various researchers for the pastyears [5][6][7][8][9][10]. However, no attempt has so far been made in application of Iron Chloride (IC) for Matang Landfill site (MLS).…”

Section: Introductionmentioning

confidence: 99%

Removal of Color, Suspended Solids, COD and Ammonia from Partially Stabilize Landfill Leachate by Using Iron Chloride through Coagulation Process

Zin¹,

Aziz²,

Adlan³

et al. 2013

IJET

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“…Colloids are generally defined as solid particles with a size between 1 nm and 1 mm [3,4,5]. Some studies had even revealed that particles with a size up to 10 cm might act as colloids as well [6].…”

Section: Colloids In Landfill Leachatementioning

confidence: 99%

“…Polyelectrolytes are polymers with ionisable functional groups such as 5 is the most common PAC in the market. Comparison between these two PACs is shown in Error!…”

Section: Coagulant Aidsmentioning

confidence: 99%

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

Kamaruddin

Yusoff

Alrozi

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Zamora et al (2000) reported a 50-70 % color reduction by a combined treatment employing activated carbon and coagulation. Aziz et al (2007) investigated CF using four kinds of coagulant viz. alum, ferric(III) chloride, ferrous(II) sulphate and ferric (III) sulphate and recommended ferric chloride as a practicable coagulant to deal with decolorization of landfill leachate (achieved 94 % color removal at 800 mg/l of FeCl 3 and pH 4).…”

Section: Color Removalmentioning

confidence: 99%

Coagulation of landfill leachate by FeCl3: process optimization using Box–Behnken design (RSM)

Kumar

Bishnoi

2015

Appl Water Sci

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FeCl 3 coagulation was used to achieve maximum reduction of COD, phosphate, sulfate and color and process optimization (FeCl 3 dosage, pH, reaction time) was done by BBD-RSM. Responses were recorded in terms of EC, COD, phosphate, color and sulfate removal. Variables A (pH) and B (reaction time) were negatively related to removal of COD and phosphate, whereas, C (FeCl 3 dosage) was positive in case of COD removal and negative for phosphate removal. pH and coagulant dosage had negative relationship with color removal; however, reaction time showed positive relationship. In case of percent sulfate removal, variable A (pH) demonstrated negative relationship whereas B (reaction time) and C (FeCl 3 dosage) were found to be positively related. Numerical optimization of the model revealed a maximum reduction of 71, 93, 86 and 99.6 % COD, phosphate, color and sulfate at optimal FeCl 3 dosage = 3 g/l, pH 8, and reaction time = 95 min.

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Colour removal from landfill leachate by coagulation and flocculation processes

Cited by 231 publications

References 6 publications

Removal of Color, Suspended Solids, COD and Ammonia from Partially Stabilize Landfill Leachate by Using Iron Chloride through Coagulation Process

Removal of Color, Suspended Solids, COD and Ammonia from Partially Stabilize Landfill Leachate by Using Iron Chloride through Coagulation Process

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

Coagulation of landfill leachate by FeCl3: process optimization using Box–Behnken design (RSM)

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