Treatment of municipal solid wastes leachate by means of chemical- and electro-coagulation

Veli, Sevil; Öztürk, Tuba Cimilli; Димогло, А. С.

doi:10.1016/j.seppur.2007.09.026

Cited by 45 publications

(23 citation statements)

References 19 publications

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“…90% [14]), and to the values obtained for chemical coagulation, the removal rates obtained from our test were much lower than expected. These results confirm the complex nature of the treatment process and the numerous parameters that interact.…”

Section: Electro-coagulationcontrasting

confidence: 70%

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The Effectiveness of Pretreatment Methods on COD and Ammonia Removal from Landfill Leachate

Poveda¹,

Yuan²,

Oleszkiewicz³

2016

IJESD

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Abstract-The goal of this experiment is to evaluate the effectiveness of different leachate pre-treatment options in terms of COD and ammonia removal. This research focused on the evaluation of physical-chemical methods for pre-treatment of leachate that would be effective and rapid in order to satisfy the requirements of the sewer discharge by-laws. The four pre-treatment options evaluated were: air stripping, chemical coagulation, electro-coagulation and advanced oxidation with sodium ferrate. Chemical coagulation reported the best COD removal rate at 43%, compared to 18% for both air stripping and electro-coagulation, and 20% for oxidation with sodium ferrate. On the other hand, air stripping was far superior to the other treatment options in terms of ammonia removal with 86%. Oxidation with sodium ferrate reached only 16%, while chemical coagulation and electro-coagulation removed less than 10%. When combined, air stripping and chemical coagulation removed up to 50% COD and 85% ammonia.

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Section: Electro-coagulationcontrasting

confidence: 70%

“…Due to the numerous and sensitive parameters governing this technique (electrode material and contact area, type and amount of current, voltage, contact time) its application is not very common for the treatment of landfill leachate. High turbidity and color removal rates are reported, but COD removal rates range from 32% to 90% [13], [14].…”

Section: +mentioning

confidence: 99%

The Effectiveness of Pretreatment Methods on COD and Ammonia Removal from Landfill Leachate

Poveda¹,

Yuan²,

Oleszkiewicz³

2016

IJESD

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“…Chemical coagulation and sedimentation is one of the most commonly used processes to remove suspended solids (SS), organic compounds, color, and toxic materials from industrial wastewater (Merzouk et al 2011;Theepharaksapan et al 2011;Veli et al 2008). When chemical coagulation is used for particle separation in wastewater treatment plants, particle size distribution and the morphology of the suspended particles are the critical parameters that affect the efficiency of the solid-liquid separation process (Grijspeerdt and Verstraete 1997;Wilen and Balmer 1999;Schmid et al 2003;Liao et al 2006).…”

Section: Introductionmentioning

confidence: 99%

On-line evaluating the SS removals for chemical coagulation using digital image analysis and artificial neural networks

Yu¹

2014

Int. J. Environ. Sci. Technol.

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Chemical coagulation is one of the most important processes for industrial wastewater treatment plants to remove the suspended solids (SS), which depend significantly on particle characteristics. A digital image analysis system was set up in this study for the on-line measurements of particle characteristics, including particle size distribution, equivalent diameter, total area, total volume, and the fractal dimension in the both coagulation and flocculation periods in chemical coagulation. Two real industrial wastewaters, textile wastewater and landfill leachate, were used for conducting the coagulation and flocculation processes with different polyaluminum chloride dosages in a batch reactor. The artificial neural network (ANN) models were used to construct the correlations between the monitoring data acquired and the SS removal efficiencies. The experimental results indicated that the ANN models were able to precisely predict the SS removal efficiencies and effluent SS concentration after the chemical coagulation, with the correlation coefficient (R 2 ) of 0.96-0.97 for real landfill leachate and R 2 of 0.93-0.97 for real textile wastewater, which provided significant benefits for the control of chemical coagulation.

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“…Bu sistemler, depolama sahasının yaşına bağlı olarak sızıntı suyundaki değişimlere rağmen yüksek verimli [18]. Diğer arıtım yöntemleri organik maddelerin ve azotların giderilmesi için kullanılır [10].…”

Section: Introductionunclassified

Investigation of various pollutants removal in leachate by electrocoagulation method

Tulun¹,

Bilgin²

2017

Pamukkale J Eng Sci

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Treatment of municipal solid wastes leachate by means of chemical- and electro-coagulation

Cited by 45 publications

References 19 publications

The Effectiveness of Pretreatment Methods on COD and Ammonia Removal from Landfill Leachate

The Effectiveness of Pretreatment Methods on COD and Ammonia Removal from Landfill Leachate

On-line evaluating the SS removals for chemical coagulation using digital image analysis and artificial neural networks

Investigation of various pollutants removal in leachate by electrocoagulation method

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