Characterization of Leachate from Kuala Sepetang and Kulim Landfills: A Comparative Study

Zainol, Noor Ainee; Aziz, Hamidi Abdul; Yusoff, Mohd Suffian

doi:10.5539/eer.v2n2p45

Cited by 48 publications

(22 citation statements)

References 26 publications

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“…This high COD level was contributed by non-biodegradable compounds and inorganic oxidisable compounds [13]. Plus, it also indicated a low concentration of volatile fatty acids and large amount of fulvic and humic substances in the leachate [12]. Figure 2.…”

Section: Coagulation Flocculation Using Jar Testmentioning

confidence: 96%

“…Table 1 shows partially stabilized semi-aerobic landfill leachate from PBLS contained high amounts of SS and COD, which exceeded Malaysian landfill leachate discharge standards. The leachate characteristic for Matang landfill was classified as partially stabilized leachate with several pollutants concentration exceeding the acceptable standard [12]. The color of the leachate was dark brown liquid with high concentrations of Chemical Oxygen Demand (COD).…”

Section: Coagulation Flocculation Using Jar Testmentioning

confidence: 99%

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The effectiveness of oil palm trunk waste derived coagulant for landfill leachate treatment

Zamri

Yusoff

Aziz

et al. 2016

AIP Conference Proceedings

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Abstract. Coagulation-flocculation has been extensively applied for semi-aerobic landfill leachate treatment, prior to other treatment methods. Opting for alternative other than conventional aluminium-based coagulants, mechanically treated starch from oil palm trunk waste had been tested as coagulant for semi-aerobic landfill leachate treatment. FTIR and corresponding elemental analysis had revealed its dominant functional groups like hydroxyl, carboxyl and amine, insinuating existences of starch, fatty acids, proteins, phosphonates, ash and small traces of lignin. Jar test using partially stabilised semi-aerobic landfill leachate from Pulau Burung Landfill Site had shown that this particular botanical coagulant could remove suspended solids and COD in semi-aerobic landfill leachate, though the efficiencies were relatively much lower compared to those of polyaluminium chloride (PAC). Apparently, it was more suitable to be applied as coagulant aid in tandem with PAC, augmenting PAC coagulation performance with 12-16% of improvement. The findings of this first ever attempt had unravelled the potential of oil palm trunk waste in semiaerobic leachate treatment

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Section: Coagulation Flocculation Using Jar Testmentioning

confidence: 96%

Section: Coagulation Flocculation Using Jar Testmentioning

confidence: 99%

The effectiveness of oil palm trunk waste derived coagulant for landfill leachate treatment

Zamri

Yusoff

Aziz

et al. 2016

AIP Conference Proceedings

Self Cite

View full text Add to dashboard Cite

show abstract

“…The test involved rapid mixing, slow mixing, and sedimentation in a batch process. For jar tests using 18% PACl as the main coagulant, the rapid mixing was set at 200 rpm for 3 min and slow mixing at 40 rpm for 30 min; the settlement was 30 min (Zainol et al, 2013). Meanwhile, the operational conditions of the jar tests using TiS as the main coagulant were rapid mixing at 100 rpm for 8 min and slow mixing at 30 rpm for 20 min, and the settlement was 30 min (Muyibi et al, 2002).…”

Section: Jar Testmentioning

confidence: 99%

“…The optimum dosage of TiS as a flocculant was determined by using jar test procedures with rapid mixing at 200 rpm for 3 min, slow mixing at 40 rpm for 30 min, and 30 min settlement (Zainol et al, 2013). The tests were conducted at 31.3 °C; the initial concentrations of SS, color, and COD were 397 mg/L, 13,787 Pt Co, and 3,925 mg/L, respectively.…”

Section: Optimum Dosage For Tis As a Flocculant In The Removal Of Ssmentioning

confidence: 99%

Effects of using Tamarindus indica Seeds as a natural coagulant aid in landfill leachate treatment

2018

Issue 2

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Uncontrolled landfill leachate generation portends danger to the environment and aquatic ecosystem, especially without prior treatment before discharge. The application of Al-based coagulants, such as polyaluminum chloride (PACl), has the potential of introducing Al residuals into water bodies. Therefore, an alternative natural coagulant was recommended to reduce the usage of Al-based coagulants. In this study, a coagulation-flocculation process using the combination of PACl as coagulant and Tamarindus indica seed (TiS) as coagulant aid was used in treating the landfill leachate from the Alor Pongsu Landfill Site in Malaysia. Some of the optimum operational conditions determined were the pH and dosage of the coagulant aid, and their effect was considered on parameters, such as suspended solids (SS), color, and COD, using standard jar test procedures. The combination of TiS flocculant reduced the dosage of PACl coagulant from 5,000 mg/L to 2,750 mg/L with removal efficiencies of 99.3%, 97.3%, and 67.4% for SS, color, and COD, respectively.

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“…The samples were collected and preserved according to the Standard Methods for the Examination of Water and Wastewater (APHA, 2005) [8]. The FeCl 3 solution was prepared based on the method presented in [9].…”

Section: Methodsmentioning

confidence: 99%

Use of Ferric Chloride and Chitosan as Coagulant to Remove Turbidity and Color from Landfill Leachate

Ramli

Aziz

2015

AMM

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Abstract. Coagulation and flocculation are two of the most common chemical treatment methods used in leachate treatment. Existing coagulants are mainly based on Al and Fe salts. The use of nonchemical based coagulants, especially natural polymers, in leachate treatment has not been thoroughly investigated. Natural coagulants have less harmful effects to human health compared with metal salts. This study aimed to investigate the effectiveness of ferric chloride (FeCl 3 ) and chitosan as coagulant in removing the turbidity and color from landfill leachate. Leachate was collected from the Matang Landfill site located at Taiping, Perak, Malaysia. When used as the main coagulant in this study, FeCl 3 was able to remove 97.78% of the turbidity and 95.54% of the color of the leachate at an optimum dosage of 3600 mg/L. At a dosage of 60 mg/L, chitosan only removed 23.52% of the turbidity and 14.67% of the color at pH levels of 9 and 4, respectively. The optimum pH value for FeCl 3 was 6. Therefore, FeCl3 is an effective coagulant that can help to remove the colour and turbidity compared to chitosan.

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Characterization of Leachate from Kuala Sepetang and Kulim Landfills: A Comparative Study

Cited by 48 publications

References 26 publications

The effectiveness of oil palm trunk waste derived coagulant for landfill leachate treatment

The effectiveness of oil palm trunk waste derived coagulant for landfill leachate treatment

Effects of using Tamarindus indica Seeds as a natural coagulant aid in landfill leachate treatment

Use of Ferric Chloride and Chitosan as Coagulant to Remove Turbidity and Color from Landfill Leachate

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