Treatment of leachate by coagulation-flocculation process using polyaluminum chloride (PAC) and tapioca starch (TS)

Azizan, M. O.; Shaylinda, M Z N; Salleh, Siti Nor Aishah Mohd; Amdan, N S M; Yashni, G.; Fitryaliah, M S; Afnizan, Wan

doi:10.1088/1757-899x/736/2/022029

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…However, a bit lower removal was observed for physical parameters of turbidity and SS at 21% and 48%, respectively (Rusdizal et al, 2015). Tobacco leaf could be classified as an anionic coagulant with -3.57 mV zeta potential, which had a higher negative charge than tapioca starch at -0.56 mV (Azizan et al, 2020;Rusdizal et al, 2015). The attraction of the opposite charges in the treated sample using tobacco leaves is possibly stronger than others; thus, it succeeded in removing the high percentages of organic contaminants (Rusdizal et al, 2015).…”

Section: Performance Comparison Of Dual Coagulant (Pac and Mep) With Previous Studiesmentioning

confidence: 94%

Treat-ability of Manihot esculenta Peel Extract as Coagulant Aid for Stabilised Leachate

Salleh¹,

Mohd-Zin²,

Othman³

et al. 2021

JST

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Agro-waste can be commercialised into another useful product such as natural coagulant for wastewater treatment. The purpose of this study was to quantify the ability of agro-waste (Manihot esculenta peel extract (MEP)) as an aid alongside the utilisation of chemical coagulant (polyaluminium chloride (PAC)) based on the removal percentages of selected parameters at the optimum coagulant dosage and pH of stabilised leachate. Series of jar tests were used to compare the leachate treatments using single and the dual coagulant of PAC and MEP with respective standard methods to analyse the removal parameters, i.e., Colorimetric (APHA Method:5220 C, HACH Method:8000) for chemical oxygen demand (COD), Conductimetric (APHA Method: 4500-N, HACH Method: 8038) for ammonia nitrogen (AN), Nephelometric (APHA Method:2130) for turbidity, Spectrophotometric (APHA Method: 2120 B, HACH Method: 8025) for colour, and Gravimetric (APHA Method:2540 D, HACH Method:630) for suspended solids (SS). Leachate treatment using the application of single PAC coagulant at the optimum conditions of 3,750 mg/L dosage and pH 6.0 of leachate managed to remove about 54.1%, 28%, 91.1%, 98%, and 98% for COD, AN, turbidity, colour, and SS, respectively. Meanwhile, by using dual coagulant at the optimum dosages of 3,500 mg/L (PAC) and 250 mg/L (MEP), and pH 7.0 of leachate, the treatment achieved higher removal except for the colour parameter. The final removal outcomes of this study were 58.3% of COD, 34% of AN, 96.9% of turbidity, 92.1% of colour, and 99% of SS. The application of MEP as coagulant aid also managed to reduce the aluminium (Al) content in PAC dosage from 577.5 mg/L to 539.0 mg/L without affecting much of its efficiency.

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Section: Performance Comparison Of Dual Coagulant (Pac and Mep) With Previous Studiesmentioning

confidence: 94%

Treat-ability of Manihot esculenta Peel Extract as Coagulant Aid for Stabilised Leachate

Salleh¹,

Mohd-Zin²,

Othman³

et al. 2021

JST

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“…In addition, starch coagulant is cheaper compared to other natural polymers such as chitosan [3]. In most of the reported previous studies, the starch used was from the starch powder obtained from the flesh of the root [4][5] [6]. However, for this study, the peel of the root was used.…”

Section: Introductionmentioning

confidence: 99%

Degradation of chemical oxygen demand, suspended solids and ammoniacal nitrogen from sewage by sweet potato peel coagulant under the influence of pH

Shaylinda,

Jismi,

Nazari

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Coagulation is a common treatment stage included in conventional sewage treatment. Various chemical, synthetic and natural coagulants in the form of single, dual and composite were applied in this treatment stage. However, the application of natural coagulants made from food waste is still uncommon. Thus, this study compares the ability of sweet potato peel as a composite coagulant (PACSPP), dual coagulant (PAC+SPP) and single coagulant (SPP) under the influence of pH in removing chemical oxygen demand (COD), suspended solids (SS) and ammoniacal nitrogen (AN) from sewage wastewater. Raw sewage sample before primary treatment was collected from University Tun Hussein Onn Sewage Treatment plant by using grab sampling method. Optimization study was conducted by using jar tester. At the optimum condition of PACSPP (pH 7), the percentage removal of COD, SS and AN was 54%, 95% and 39%. While a single SPP coagulant, at its optimal pH of 9, achieved 24%, 16% and 17% removals of COD, SS and AN, respectively. Meanwhile, optimisation of dual coagulant (pH 9) demonstrated 39%, 73% and 42% removals of COD, SS and AN, respectively. Thus, SPP, as a composite coagulant, outperformed the dual and single coagulant of SPP.

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“…Leachate will not only pollute water resources but also contaminate the soil. According to Azizan et al (2020), leachate will increase the soil's toxicity, ultimately contributing to soil pollution. As leachate poses a significant environmental risk, thus many ways to reduce leachate risk and leachate treatment have been developed.…”

Section: Introductionmentioning

confidence: 99%

A bibliometric analysis of leachate publications by ASEAN authors

Abdullah

Ghazali

Rodzi

et al. 2022

Journal of Metric SSS

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Leachates are the aqueous effluent produced from waste filtration of rainwater, biochemical activities in the waste cells, and the unavoidable water content of the waste itself. Leachate can travel into soil and subsoil, seriously affecting the land, surface water, and groundwater ecosystems. Leachates typically contain significant quantities of organic matter, ammonia-nitrogen (NH3-N), toxic chemicals, and organic and inorganic chlorinated salts, which are detrimental to living and biodiversity. Based on the significant risk posed by leachate, many kinds of research have been conducted on these environmental concerns. Therefore, this paper aims to analyse and report leachate-related publications by ASEAN authors based on the data collected from the Scopus database. As of 24th April 2020, a total number of 1133 articles were retrieved and analysed. This study examined publication productivity by analysing descriptive publication patterns and visualising keywords co-occurrences. The results showed that there had been an increase in the literature on leachate growth rate from 1989 until 2020. However, the number of publications slightly dropped in 2011 and 2014. This study revealed the widespread scholarly communication techniques in leachate research, which will assist future researchers in identifying the fundamental parts of this body of knowledge. In conclusion, this study enables researchers to develop innovative solutions to the leachate environmental problem by assessing the bibliometric parameters that provide the study’s crucial and noteworthy findings.

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Treatment of leachate by coagulation-flocculation process using polyaluminum chloride (PAC) and tapioca starch (TS)

Cited by 6 publications

References 12 publications

Treat-ability of Manihot esculenta Peel Extract as Coagulant Aid for Stabilised Leachate

Treat-ability of Manihot esculenta Peel Extract as Coagulant Aid for Stabilised Leachate

Degradation of chemical oxygen demand, suspended solids and ammoniacal nitrogen from sewage by sweet potato peel coagulant under the influence of pH

A bibliometric analysis of leachate publications by ASEAN authors

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