Landfill leachate treatment using powdered activated carbon augmented sequencing batch reactor (SBR) process: Optimization by response surface methodology

Aziz, Shuokr Qarani; Aziz, Hamidi Abdul; Yusoff, Mohd Suffian; Bashir, Mohammed J.K.

doi:10.1016/j.jhazmat.2011.02.052

Cited by 167 publications

(66 citation statements)

References 43 publications

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“…The disposal of landfill leachate can be a source of severe pollution, especially for soil, water, and groundwater contamination (El-Salam and Abu Zuid, 2015). Similarly, public health hazards may also be caused by the discharge of untreated landfill leachate, especially into water bodies (Akinbile et al, 2012;Al Hamadani et al, 2011;Aziz et al, 2011). In an attempt to prevent an occurrence of this scenario, related government regulatory agencies are becoming more stringent and restrictive in the enforcement of environmental rules and regulations concerning the monitoring of contaminants from leachate waste streams (Maizatun, 2011).…”

Section: Introductionmentioning

confidence: 99%

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

2018

Global NEST Journal

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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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Section: Introductionmentioning

confidence: 99%

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

2018

Global NEST Journal

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“…Leachate is one of the main environmental problems in landfilling. Different treatment methods including, physicochemical (Kang and Hwang [1]; Ramirez and de Velasquez [2]), biological (Ağdağ and Sponza [3]) and combinations of these methods (Wei et al [4], Aziz et al [5]) were tested for leachate, so far. However a complete treatment process for leachate has not been identified due to its complex characterization, so far.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Pretreatment Effect of Ultrasound on Anaerobic Sequencing Batch Reactor Treating Landfill Leachate

Yarımtepe¹,

Öz²

2017

WIT Transactions on Ecology and the Environment

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Landfill leachate is one of the most complex wastewaters. Anaerobic treatment has environmental benefits such as low sludge production and biogas production. However, studies have been continuing to achieve better reactor performance. In recent years, ultrasound treatment has been used for different purposes. The aim of this study is to determine the ultrasound effects on anaerobic sequencing batch reactors (ASBR) to increase COD removal efficiency and biogas production for landfill leachate. During operation of ASBRs, in biogas production and methane content, there is an increase of 10% and 7% in pretreated leachate, respectively. This increase in reactor performance is directly related to the transition of landfill leachate's organic matter to dissolved phase by ultrasound pretreatment.

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“…1,2 Due to the recalcitrant characteristics of this leachate, its treatment has been extensively studied and a vast amount of relevant literature is available. [3][4][5][6][7][8][9] According to environmental regulations, the conditions and standards established for the discharge of effluent to water bodies must be adhered to. Thus, leachate cannot be discharged to natural water bodies without appropriate treatment since it contains high concentrations of pollutants, such as organic substances (evaluated through the chemical oxygen demand (COD) and biochemical oxygen demand (BOD)), ammonia, heavy metals and inorganic salts.…”

Section: Introductionmentioning

confidence: 99%

Application of thermal plasma for inertization of sludge produced during treatment of landfill leachate

et al. 2016

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One of the outstanding issues of concern by governments and society in general relates to the final destination of solid waste, which can bring severe impacts on social, political, economic and environmental dimensions. The sustainable development of enterprises and industries goes for the care of the planet, thus ensuring the quality of life for future generations and the planet. The disposal of municipal waste in landfills is the technique most commonly employed for the remediation of solid residues. The residues undergo decomposition beneath the soil and in the presence of water this generates leachate, which percolates down to the bottom of the landfill through drainage. This drained liquid is collected from the landfill installations and subjected to treatment, which involves physico-chemical and biological processes. Landfill leachate commonly contains heavy metals due to the incorrect disposal of products such as fluorescent bulbs and batteries. In this context, a method for the treatment of sludge originating from the physicochemical remediation of leachate using thermal plasma is proposed in this paper. The efficiency of the method was verified by monitoring the total organic carbon content, water content and density of the sludge. The quantity of metals present in the samples was determined before and after pyrolysis by thermal plasma using flame atomic absorption spectroscopy (FAAS), scanning electron microscopy (SEM) and X-ray fluorescence (XRF) spectrometry techniques. The results show that the leachate treatment method used was efficient, presenting the best results for the samples of iron and zinc.

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Landfill leachate treatment using powdered activated carbon augmented sequencing batch reactor (SBR) process: Optimization by response surface methodology

Cited by 167 publications

References 43 publications

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

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

Investigation of the Pretreatment Effect of Ultrasound on Anaerobic Sequencing Batch Reactor Treating Landfill Leachate

Application of thermal plasma for inertization of sludge produced during treatment of landfill leachate

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