Treatment of Dairy Wastewater by Electrocoagulation and Ultrasonic-Assisted Electrocoagulation Methods

Al-Yaqoobi, Atheer M.; Al-Rikabey, Muna N.; Algharrawi, Khalid Hussein Rheima

doi:10.30638/eemj.2021.088

Cited by 5 publications

(3 citation statements)

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“…Mekanisme metode ultrasonik ini bergantung pada efek gelombang ultrasonik yang mengalir melalui media cair-padat yang melibatkan pembentukan gelombang mikro. Gelembung membentuk karitas pada media cair [34], memberikan gaya geser yang tinggi dan saat ledakan gelembung terjadi, hal tersebut menyebabkan pencampuran mikro dan turbulen makro, serta menawarkan tingkat kontak yang lebih tinggi antara padatan dan cairan. Hal tersebut menyebabkan beberapa efek seperti erosion, surface peeling dan pemecahan partikel padatan yang bersentuhan.…”

Section: Pendahuluanunclassified

Analisis Parameter Nilai Difusivitas Kafein Pada Ekstraksi Ampas Kopi Berbantu Gelombang Ultrasonik

Mustikaningrum,

Sawali

2023

JTKM

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Limbah ampas kopi yang sangat melimpah diakibatkan konsumsi minuman kopi yang meningkat dan menjadi gagasan penting bagaimana pengolahan limbah ampas kopi agar kemudian tidak menjadi limbah buangan yang tidak bermanfaat. Salah satu senyawa yang dapat dimanfaatkan kembali dari buangan limbah ampas kopi adalah kafein. Kafein merupakan senyawa yang bermanfaat bagi kesehatan. Kafein dapat di isolasi dari limbah ampas kopi dengan cara ekstraksi. Pada penelitian ini ekstraksi dilakukan dengan menggunakan bantuan gelombang ultrasonik dengan bantuan alat sonikator tipe bath. Sebesar 25 gram sampel ampas kopi dilarutkan pada 250 ml dan diletakan pada alat sonikator yang dioperasikan selama 45 menit pada 30 0C. Sampel hasil kemudian dianalisis menggunakan HPLC untuk mengetahui konsentrasi akhir kafein yang dihasilkan. Fokus penelitian ini adalah mencari nilai beberapa parameter uji seperti konstanta difusivitas (DA), konstanta kecepatan ekstraksi (k) dan konstanta kesetimbangan ekstraksi (K), dimana didapatkan masing-masing nilai parameter uji sebesar 0.014462 dm2/menit; 0,00256 dm/menit dan 103,218. Konsentrasi akhir kafein yang dihasilkan pada penelitian sebesar 0,08053 mol/dm3.

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Section: Pendahuluanunclassified

Analisis Parameter Nilai Difusivitas Kafein Pada Ekstraksi Ampas Kopi Berbantu Gelombang Ultrasonik

Mustikaningrum,

Sawali

2023

JTKM

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“…These ions are removed mainly by precipitation of calcium and magnesium phosphates in an alkaline environment [11,26,39,40]. Calcium and magnesium in hydroponic effluent can form sludges with SO 4 2− ; they create an insulation layer on the electrodes, which can be dissolved by adding Cl − [41]. Earlier studies by Bryszewski et al [11] and Mielcarek et al [5] showed also that magnesium and calcium concentrations decreased following the application of bio-electrochemical and biological processes in an alkaline environment.…”

Section: Chemicalmentioning

confidence: 99%

Effect of Bio-Electrochemical Treatment of Hydroponic Effluent on the Nutrient Content

2022

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This study examined the effect of bio-electrochemical treatment processes on nitrogen and phosphorus removal, but it also evaluated the impact of the treatment processes on the concentration of other nutrients present in hydroponic effluent. A bio-electrochemical reactor (BER) was used in the experiment to treat effluent from the hydroponic cultivation of tomatoes. It was stated that the nitrogen removal efficiency decreased with increasing current density. The study showed that an electric current density of 0.63 A/m2 ensured the lowest effluent nitrate concentration. The nitrogen removal efficiency ranged from 41.6%-R1 (density of 0.63 A/m2) to 8.9%-R4 (density of 5 A/m2). Electric current density higher than 1.25 A/m2 resulted in lower total nitrogen removal efficiency. The total phosphorus removal efficiency increased with increasing electric current density. The phosphorus removal efficiency was the lowest—95.1%—in the R1 reactor, whereas it was the highest in R4—99.1%. The concentration of the other elements in the effluent was determined. The content of molybdenum, boron, sulphates, and potassium did not meet the acceptable norms for discharging hydroponic effluent into the environment. The study showed that bio-electrochemical processes taking place in BER caused secondary contamination of hydroponic wastewater with molybdenum ions.

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“…In the electrocoagulation process in which metals, such as iron and aluminum, are dissolved by electricity and metal hydroxides are formed in wastewater, which causes coagulation/agglomeration of pollutants [32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Color Removal of Textile Wastewater Using Electrochemical Batch Recirculation Tubular Upflow Cell

Beddai

Badday

Al-Yaqoobi

et al. 2022

International Journal of Chemical Engineering

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The progress in textile industrial technologies comes along with a massive increase in the discharge of dyes in the wastewater which considers a serious environmental problem. In this regard, a new electrochemical system has been developed for the treatment of simulated dye solutions of permanent methylene blue dye by an electrochemical cyclic ring reactor. An aluminum rod and a stainless steel mesh were used as the anode and cathode. The experiments on the artificial dye solutions have been carried out in a 6-liter electrochemical cell containing 50 ppm neutral dye solutions. The effects of various parameters such as electrolysis time applied current density (2, 3.32, 5.31, 6.64, and 7.46 mA cm−2), electrolyte concentrations (600, 900, 1200, 1500, and 1800 ppm), and flow rates (1, 1.5, 2, 2.5, and 3 Lh−1) on the process removal efficiency were examined. The results demonstrated that the removal efficiency reached 94–99% within 40–50 minutes of electrolysis time. The removal efficiency increased by increasing the flow rates until it reaches a maximum value at a flow rate of 2 Lh−1; thereafter, it declined with the farther augment of recirculation speed. It is indicated that raising the applied current resulted in increasing the removal efficiency. However, the power consumption builds up to the maximum value by increasing the applied current, where the power consumption rose from 8.51 to 30.3 kWh kg−1 with an increase in the current density from 2 to 7.46 mA cm−2, and a removal efficiency increased from 94% to 99%, accordingly. The results also showed that by increasing the electrolyte concentration, the power consumption can be reduced to its minimum value and the removal efficiency increased remarkably.

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Treatment of Dairy Wastewater by Electrocoagulation and Ultrasonic-Assisted Electrocoagulation Methods

Cited by 5 publications

References 0 publications

Analisis Parameter Nilai Difusivitas Kafein Pada Ekstraksi Ampas Kopi Berbantu Gelombang Ultrasonik

Analisis Parameter Nilai Difusivitas Kafein Pada Ekstraksi Ampas Kopi Berbantu Gelombang Ultrasonik

Effect of Bio-Electrochemical Treatment of Hydroponic Effluent on the Nutrient Content

Color Removal of Textile Wastewater Using Electrochemical Batch Recirculation Tubular Upflow Cell

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