Potential Use of Polyaluminium Chloride and Tobacco Leaf as Coagulant and Coagulant Aid in Post-Treatment of Landfill Leachate

Rusdizal, Nurfarahim; Aziz, Hamidi Abdul; Kadir, Mohd Omar Ab

doi:10.17795/ajehe-5836

Cited by 6 publications

(11 citation statements)

References 25 publications

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“…They obtained the neutral pH of 7.2 as the ideal leachate pH with 400 mg/L of psyllium husk and 7,200 mg/L of PAC dosages with satisfying removals, i.e., 64% of COD, 90% of colour, and 96% of SS. The tobacco leaf (1000 mg/L dosage) was also used as the coagulant aid by obtaining the apparent COD removal at 91% indeed with 1,500 mg/L dosage of PAC at pH 6.0 (Rusdizal et al, 2015). The result for the AN parameter (54% removal) was also good enough to initiate the leaf as a competitive natural coagulant.…”

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

confidence: 99%

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: 99%

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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“…Several studies have been done on utilization of natural coagulants or coagulant aids, either produced or extracted from plants, animal and agricultural wastes such as Moringa oleifera (MO) seeds, chitosan and cassava peel (Choy et al 2014;Mohd-Asharuddin et al 2017). Over the years, these organic coagulants such as (MO) seed and chitosan have been the most cited in the previous literature (Camacho et al 2017;Debora et al 2013;Ghebremichael et al 2005;Rusdizal et al 2015;Sánchez-Martín et al 2012;Vieira et al 2012;Zoonozi et al 2011). The trending application of these coagulants are generally speaking up for the environmental-friendly technology, since they are renewable resources and achievable especially in the remote areas (Yin 2010).…”

Section: Chemical and Natural Coagulantsmentioning

confidence: 99%

“…Essentially, past studies have recorded that natural material-based coagulants produce lesser volume of sludge (Altaher et al 2016;Rasool et al 2016), thus, convince the utilization of these alternative and possible choice of coagulants, since it cut the cost of sludge treatment. The naturally occurring materials also highly biodegradable (Awang & Aziz 2012;Birima et al 2013;Rasool et al 2016;Subramonian et al 2014), nonhazardous and toxic free (Rasool et al 2016;Rusdizal et al 2015;Teixeira et al 2017), differ than chemical-based that insecure the human health and cause environmental hazards. Coagulants derived from natural materials can also be found in abundance especially when it is plant-based and agro waste.…”

Section: Future Potential and Constraint Of Natural Materials As Commmentioning

confidence: 99%

“…In recent years, natural coagulants have been researched as a more environmentally friendly approach to substitute the commercial coagulants in coagulation flocculation treatment. Natural-based coagulants have been applied on wastewater as either a primary coagulant or as a coagulant aid for a chemical coagulant (Rusdizal et al 2015). However, the effectiveness study of natural coagulants is still at the initial state.…”

Section: Utilization Of Natural Materials As Coagulant Aid and Composmentioning

confidence: 99%

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A Review of Wastewater Treatment using Natural Material and Its Potential as Aid and Composite Coagulant

Salleh¹,

Mohd-Zin²,

Othman³

2019

JSM

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The introduction of natural materials into the coagulation-flocculation process need to be practiced as common as possible. The previous literature indicated that utilization of natural material is actually worth to be developed and if possible, into the commercial one. However, the application of natural coagulants itself as the primary treatment is not sufficient, due to the rise in constraints which limited its performance. Emerging technologies and depth studies are actually helping these limited conditions to grow them as good as the performance of chemical coagulants. Alternatively, the natural-based coagulants are commonly used as coagulant aids alongside chemical coagulants, which have created a highlight in water research. This review covers the type of coagulants used in the coagulation-flocculation of wastewater treatment especially in the usage of natural-based coagulants. This review paper also outlines the future prospects of natural materials as aids and its potential as sustainable composite coagulants.

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“…As the landfill get older, the activity of anaerobic decomposition in the site will reduce the biodegradable fraction of organic pollutants, thus cause stabilized leachate become higher polluted wastewater compare to the young ones [2]. The high accumulation of inorganic toxic compounds such as heavy metals and ammonia over a long period time are recognized as toxicants to the living organisms, which can cause further damaging consequences [3]. Typically, old leachate is harder to be treated.…”

Section: Introductionmentioning

confidence: 99%

Dosage and pH optimization on stabilized landfill leachate via coagulation-flocculation process

et al. 2018

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Treatment on the generated landfill leachate is crucial as it can cause serious toxicological effects and environmental hazards, particularly when the unfavorable contaminants are left accumulated for a long period of time. The purpose of this study was to determine the optimum coagulant dosage of polyaluminium chloride (PAC) in selected dosage ranges (2250-4500 mg/L) and to analyse the ideal pH of leachate sample (pH 3-10). PAC was tested on stabilized leachate taken from Simpang Renggam Landfill Site (SRLS), by investigating the percentage removals of five significant parameters, which were suspended solids, chemical oxygen demand (COD), ammonia, and heavy metals (iron (Fe) and chromium (Cr)). The removal efficiency was determined by a series of experiments using jar test. From the obtained results, it was found that 3750 mg/L and pH 7 were the optimum conditions for PAC dosage and sample pH, respectively. The conventional optimization test showed satisfactory results for suspended solids, COD, Fe, and Cr at 95%, 53%, 97%, and 79% respectively, but had low removal on ammonia at 18%. It can be concluded that the coagulation-flocculation process has the potential to be applied as a primary treatment for stabilized landfill leachate in Malaysia.

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Potential Use of Polyaluminium Chloride and Tobacco Leaf as Coagulant and Coagulant Aid in Post-Treatment of Landfill Leachate

Cited by 6 publications

References 25 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

A Review of Wastewater Treatment using Natural Material and Its Potential as Aid and Composite Coagulant

Dosage and pH optimization on stabilized landfill leachate via coagulation-flocculation process

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