Wastewater treatment in electrocoagulation systems: investigation of the impact of temperature using a fuzzy logic control algorithm

Demirci, Yavuz; Özbeyaz, Abdurrahman

doi:10.1007/s11356-019-06279-4

Cited by 10 publications

(3 citation statements)

References 18 publications

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“…PID controller are the dominant strategy in controlling industrial processes as it is relatively simple to understand and to provide satisfactory control for most of the process and are generally more cost-effective approach (Demirci & Özbeyaz, 2019). However, due to the fast process dynamic of an intensified system, it is required to take into account instrumentation dynamics which is usually neglected in traditional system, resulting high order process model which is uncommon for classical PID tuning method (R. Jones & Tham, 2015).…”

Section: Introductionmentioning

confidence: 99%

Controller Design and Stability Analysis of Intensification Process using Analytical Exact Gain-Phase Margin approach

Lee

Shukor

2023

Environ Sci Pollut Res

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Controllable intensified process has received immense attention by the researchers in order to deliver the benefit of process intensification to be operated in a desired way in order to provide a more sustainable process towards reduction of environmental impact, improve of intrinsic safety and process efficiency. This paper proposed the Exact Gain and Phase Margin (EGP) through analytical method to develop suitable controller design for intensified system using PID controller formulation and it was compared to conventional Direct Synthesis Methods (DS), Internal Model Control (IMC) and Industrial IMC method in terms of the performance and stability analysis. Simulation results showed that EGP method provides good setpoint tracking and disturbance rejection as compared to DS, IMC and Industrial IMC while retaining overall performance stability as time delay increases. The Bode Stability Criterion was used to determine the stability of the open-loop transfer function of each method and the result demonstrated decrease in stability as time delay increases for controller design using DS, IMC and Industrial IMC and hence control performance degrades. On the other hand, the proposed EGP controller maintains the overall robustness and control performance throughout the increase of time delay and outperform the other controller design methods at higher time delay. Another highlight of this work is that the proposed EGP controller design method provides overall overwhelming control performance with lower overshoot and shorter rise time compared to other controllers when process time constant is smaller in magnitude (𝝉 𝐩 = 0.01 𝑎𝑛𝑑 0.1) than the instrumentation element, which is one of the major concerns during the design of intensified controllers, resulting in a higher order of overall system. The desired selection of gain margin and phase margin were suggested at 2.5 to 4 and 60° -70° respectively for a wide range of control condition for intensified process where higher instrumentation dynamic would be possible achieve robust control as well. As a result, the proposed EGP method controller is thought to be more reliable design strategy for maintaining the overall robustness and performance of higher order and complex systems that are highly affected by time delay and high dynamic response of intensified processes.

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Section: Introductionmentioning

confidence: 99%

Controller Design and Stability Analysis of Intensification Process using Analytical Exact Gain-Phase Margin approach

Lee

Shukor

2023

Environ Sci Pollut Res

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“…Various studies on different WWTPs are reported in the literature. An investigation report on the impact of temperature control loops in a textile wastewater treatment plant (electro-coagulation system) using a fuzzy logic control algorithm is presented in (Demirci & Ozbeyaz 2019). A study was conducted to control the nitrification process in a wastewater treatment setup in order to reduce the operation cost in (Burnashova et al 2018).…”

Section: Introductionmentioning

confidence: 99%

A supervisory fuzzy logic control scheme to improve effluent quality of a wastewater treatment plant

Kumar

Latha

2021

Water Science and Technology

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The application of control strategies in wastewater treatment plants has increased to improve its performance of treating the influent. Fuzzy Logic controller plays a vital role in this work and the simulation work is being carried out in Benchmark simulation model no.1 (BSM1) framework. The attempted work proposes two control schemes with the objectives of improving the effluent quality and minimizing the number of measurements taken from the plant. The design of fuzzy control schemes is based on 5 inputs and 6 outputs in order to accomplish the objectives. Experimental results show improvement in the effluent quality and increase in the efficacy of the control system. The proposed design is implemented using MATLAB with the adaptation of 2014a.

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“…Adicionalmente,Mousazadeh et al (2021) señala que el método tiene la capacidad de remover grandes volúmenes de DQO, para el caso de efluentes de harina y aceite de pescado, las mejores condiciones de aplicación del método se encuentran a 10 V y un intervalo de tiempo de 60 min, llegando a remover DQO en >90%, garantizando una alta eficiencia. Asimismo,Demirci & Özbeyaz (2019) aplicaron el método de electrocoagulación con un voltaje de 15 V a efluentes pesqueros, removiendo el DQO en >91%.Además,Aguilar et al (2021) evaluaron las aguas de bombeo de fábricas de pescado y obtuvieron un coeficiente de determinación (R 2 ) de >92.32%, lo que les permitió afirmar que el tiempo y el voltaje influyen de manera significativa en la remoción del DQO. Para el caso de efluentes de harina y aceite de pescado de industrias pesqueras, obteniendo coeficientes de determinación de 98.87% y 97.70% respectivamente, lo cual indica que los coeficientes de determinación de ambos efluentes se ajustan a la variable del porcentaje de remoción acercándose al 100%.Por otro lado, en los efluentes de aceite de pescado para los efectos principales, el tiempo tiene una mayor influencia para remover DQO An et al (2017).…”

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Aplicación del método de electrocoagulación para tratamiento de efluentes de industrias pesqueras-Bahía del Callao

Arutinco¹,

Llacctas²

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Las industrias pesqueras son los sectores alimentarios fundamentales e importantes en todo el mundo. Siendo Perú uno de los países con mayor producción de harina y aceite de pescado a nivel mundial. Sin embargo, debido a sus procesos productivos los efluentes causan impactos perjudiciales al medio ambiente. Esta investigación aplicó el tratamiento de electrocoagulación a las aguas residuales pesqueras para reducir los siguientes parámetros: aceites y grasas (AyG), demanda bioquímica de oxígeno (DBO), sólidos suspendidos totales (SST), turbidez, conductividad, pH y demanda química de oxígeno. Para ello se diseñó un reactor de material acrílico de medidas de 25 cm de largo, 15 cm de ancho y 14 cm de altura, con un volumen de 2 L. Los efluentes pesqueros de aceite de pescado y harina de pescado fueron sometidos a una densidad de corriente de 5 V y 10 V en los periodos de 5 y 10 min. Los resultados revelaron que se obtuvieron un valor final de 25 mg/L y 18.05 mg/L de AyG, 3156 mg/L y 3297 mg/L de DBO, 284 mg y 220 mg de SST, 7.16 NTU y 1.75 NTU de turbidez, 5197 mg/L y 10056 mg/L de DQO, 17.52 mS/cm y 20 mS/cm de conductividad y 7.51 y 7.32 de pH de efluentes de aceite de pescado y harina de pescado, respectivamente. El método aplicado de electrocoagulación demostró eficiencia y rentabilidad para tratar efluentes provenientes de industrias pesqueras, ya que se observó variación en los parámetros fisicoquímicos evaluados.

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Wastewater treatment in electrocoagulation systems: investigation of the impact of temperature using a fuzzy logic control algorithm

Cited by 10 publications

References 18 publications

Controller Design and Stability Analysis of Intensification Process using Analytical Exact Gain-Phase Margin approach

Controller Design and Stability Analysis of Intensification Process using Analytical Exact Gain-Phase Margin approach

A supervisory fuzzy logic control scheme to improve effluent quality of a wastewater treatment plant

Aplicación del método de electrocoagulación para tratamiento de efluentes de industrias pesqueras-Bahía del Callao

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