Treatment of landfill leachate by electrocoagulation using aluminum electrodes

Taqwa, Ahmad; Syakdani, Adi

doi:10.1051/matecconf/201710102010

Cited by 21 publications

(14 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The aluminium plate had removed more zinc compared to the iron and zinc plates. Based on the periodic table, the aluminium is a more reactive metal compared to iron and zinc [14]. During the process, aluminium plate produced fast reaction, unlike the zinc and iron plates, which were slower.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

The Treatment of Landfill Leachate by Electrocoagulation to Reduce Heavy Metals and Ammonia-Nitrogen

Kasmuri

Tarmizi

2018

IJET

View full text Add to dashboard Cite

Landfill leachate contains high concentration of contaminants in the form of nitrogen, suspended solids and heavy metals, which effects the environment adversely. Hence leachate treatment is considered vital in landfill management as the effluent needs to undergo several treatments before being discharged into natural water bodies. Without treatment, the leachate will contaminate the surface and ground water as it can penetrate through soils and subsoils. Several methods have been applied for the treatment of landfill leachate. However, these methods have several constraints due to area required and cost incurred. This paper presents the application of electrocoagulation in removing pollutants from landfill leachate; particularly ammonia-nitrogen and heavy metals. Three metals namely aluminium, iron and zinc were used as electrodes. Aluminium electrode was found to be the most effective where it was capable to extract 89% of zinc and 75% of iron in 30-minute retention time. Subsequently, 93% of zinc and 83% of iron was removed in 120 minutes. In addition, 93% of ammonia-nitrogen was also removed. These results led to a conclusion that the electrocoagulation had the capacity to remove heavy metals and ammonia-nitrogen present in landfill leachate.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Three batch experiments were run consecutively using the zinc, iron and aluminium plates. Electric current was run via a DC power supply to the electrodes (cathode and anode) following [14]. However, this research used small electric current by a direct power supply to the circuit (5A at 18V).…”

Section: Fig 1: a Basic Conceptual Diagram Of Electrolysismentioning

confidence: 99%

The Treatment of Landfill Leachate by Electrocoagulation to Reduce Heavy Metals and Ammonia-Nitrogen

Kasmuri

Tarmizi

2018

IJET

View full text Add to dashboard Cite

show abstract

“…The increase of H 2 gas bubbles produced makes the flocs float to the surface more easily. Flocs that are formed, by and by grow larger and eventually settle on the bottom of the EC reactor [16].…”

Section: Effect Of Voltage On Process Time For Codmentioning

confidence: 99%

Treatment Optimization of Electrocoagulation (EC) in Purifying Palm Oil Mill Effluents (POMEs)

Rusdianasari

Taqwa

Jaksen

et al. 2017

J. Eng. Technol. Sci.

Self Cite

View full text Add to dashboard Cite

Abstract. Palm oil mill effluents (POMEs) can contaminate soil, groundwater, and also the water environment. The increasing production of crude palm oil in Indonesia produces an enormous amount of POME waste. Therefore, a method is needed that can be used to purify POMEs. In this paper, an electrocoagulation (EC) method for purification of wastewater and a design to optimize this method are presented. An optimization experiment was performed by varying voltage and process time. The applied voltages were 6, 9, and 12 V and the process time was varied between 30 and 150 minutes. The measured parameters were: COD, BOD 5 , pH, TSS, lipids, and NH 3 -N. The result shows that optimum conditions were achieved at a voltage of 12 V and a process time of 150 minutes with COD at 8000 mg/L, BOD 5 at 12000 mg/L, pH at 7.46, TSS at 324 mg/L, lipids at 17.8 mg/L, and NH 3 -N at 0.65 mg/L. The results are in accordance with environmental quality standards for pure water. This study proves that the proposed EC method is effective in purifying POMEs from pollutants.

show abstract

“…One alternative to wastewater treatment is electrocoagulation. The electrocoagulation process is an electrochemical method for water treatment where at the anode there is a release of active coagulants in the form of metal ions (usually aluminum or iron) into the solution, while at the cathode there is an electrolytic reaction in the form of the release of hydrogen gas [10][11][12][13]. The electrocoagulation process is influenced by several factors including electric current, electric voltage, contact time, temperature, pH, and conductivity.…”

Section: Introductionmentioning

confidence: 99%

“…The advantages of the electrocoagulation method include that the resulting floc is the same as a regular coagulation floc, is not affected by temperature, does not need pH adjustment and does not need additional chemicals. In contrast, the drawback is that it is not able to process liquid waste with high electrolyte properties because it can cause a short circuit between the electrode and the anode rod which is easy to corrode so that it needs to be replaced periodically [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Tofu Industrial Wastewater Treatment by Electrocoagulation Method

Hajar¹,

Fadarina²,

Zamhari³

et al. 2021

Atlantis Highlights in Engineering

View full text Add to dashboard Cite

Tofu waste liquid contains high levels of organic impurities, such as protein and amino acids. These organic compounds cause the tofu industrial wastewater to contain high biological oxygen demand (BOD), chemical oxygen demand (COD), pH and total suspended solid (TSS) which can pollute the environment. In general, the liquid waste from the tofu factory is discharged directly into rivers through sewers and rivers. Most of the tofu wastewater contains various kinds of pollutants which may be produced in the form of organic pollutants (foul smelling), inorganic pollutants (spicy and colored), so they are dangerous to the surrounding environment and need to be treated. One alternative to tofu liquid waste treatment is electrocoagulation. The electrocoagulation method has the potential to purify tofu wastewater and reduce the content of BOD, COD, TSS and neutralize pH without the addition of certain chemical coagulants. The purpose of this study was to obtain the characteristics and levels of pollutants contained in tofu industrial wastewater before and after processing, and to determine the effectiveness of the electrocoagulation method with various variations in voltage and reaction time. The electrocoagulation tub is attached with a cable connected to the power supply, then connected to a current source with a variable voltage (8; 10; 12 V) and a variable reaction time (30; 60; 90; 120; 150 minutes). The optimum conditions were obtained at a voltage variation of 12 volts and a reaction time of 150 minutes, with a percentage increase in pH of 72.33% to 5.98, a decrease in COD of 28.57% to 10 mg/L, a decrease in BOD5 of 46.87% to 2, 29 mg/L, and TSS from 11.47% to 21.6 mg/L.

show abstract

Treatment of landfill leachate by electrocoagulation using aluminum electrodes

Cited by 21 publications

References 15 publications

The Treatment of Landfill Leachate by Electrocoagulation to Reduce Heavy Metals and Ammonia-Nitrogen

The Treatment of Landfill Leachate by Electrocoagulation to Reduce Heavy Metals and Ammonia-Nitrogen

Treatment Optimization of Electrocoagulation (EC) in Purifying Palm Oil Mill Effluents (POMEs)

Tofu Industrial Wastewater Treatment by Electrocoagulation Method

Contact Info

Product

Resources

About