scholarly journals Removing BOD, COD, and Decolorization of Batik Cual Wastewater Using Fenton Mechanism

2021 ◽  
Vol 10 (1) ◽  
pp. 139-148
Author(s):  
Rika Favoria Gusa ◽  
Diana Novita Sari ◽  
Fitri Afriani ◽  
Wahri Sunanda ◽  
Yuant Tiandho
Keyword(s):  
Wastewater Treatment ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Organic Dyes ◽  
Liquid Waste ◽  
Oxygen Demand ◽  
Degradation Efficiency ◽  
Color Degradation ◽  
Colored Wastewater

During the production of batik cual, thick-colored wastewater is produced. Unfortunately, the wastewater could damage the environment if it is disposed of without specific processing. The Fenton method is an advanced oxidation process (AOPs) that can degrade organic dyes found in liquid waste. In this research, the researchers studied the Fenton mechanism's application to the batik cual wastewater treatment. The Fenton's reagent used was H2O2 with FeSO4.7H2O. Some of the experimental wastewater treatment parameters were the values of biological oxygen demand (BOD), chemical oxygen demand (COD), the degradation efficiency of difficult to decompose organic materials, and the color degradation efficiency in batik cual wastewater. The results show that the Fenton mechanism’s efficiency of removing color from batik cual wastewater is up to 97.8%, COD and BOD removal efficiencies are 76.3% and 75.2%, and the degradation efficiency of difficult to decompose organic matter is 76.8%. Also, the researchers found that the higher amounts of FeSO4.7H2O increase the removal parameters effectiveness. Therefore, the Fenton mechanism can effectively improve the quality of wastewater in batik cual production.

scholarly journals TREATMENT OF WASTEWATER CONTAINING RHODAMINE BY ADVANCED OXIDATION PROCESS (AOP): FENTON, PHOTO-FENTON AND OZONATION

2016 ◽  
Vol 13 (26) ◽  
pp. 46-51
Author(s):  
Calina Ninfa GRANDO ◽  
Matheus José Gomes DIEHL ◽  
Clóvia Marozzin MISTURA
Keyword(s):  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Low Cost ◽  
High Capacity ◽  
Advanced Oxidation ◽  
High Toxicity ◽  
Color Degradation ◽  
Conservation Of Natural Resources ◽  
Colored Wastewater ◽  
Wide Potential

The necessity for the conservation of natural resources and possible risks to human health have motivated efforts to minimize contamination problems. The agate dyeing and washing operations demand the utilization of considerable volumes of water and yield colored wastewater in addition to the possibility of high toxicity. The Advanced Oxidation Process (AOP) has been extensively evaluated, mainly due to its high capacity for degrading a large number of resistant substances with relatively low-cost procedures and simple operations. These processes are based upon the formation of the hydroxyl radical (OH•); which has a wide potential for oxidation. All three treatments yielded excellent results in color degradation.

scholarly journals Optimization of ibuprofen degradation in water using high frequency ultrasound-assisted biological reactor

2020 ◽  
Vol 81 (10) ◽  
pp. 2250-2259
Author(s):  
Arwa Abdelhay ◽  
Aya Allafi ◽  
Abeer Albsoul
Keyword(s):  
Power Density ◽  
Advanced Oxidation Process ◽  
Oxygen Demand ◽  
Pharmaceutical Product ◽  
Degradation Efficiency ◽  
Operating Parameters ◽  
Sonication Time ◽  
High Frequency Ultrasound ◽  
Working Volume ◽  
Ultrasound Assisted

Abstract Ultrasound (US) is being considered as a promising emerging advanced oxidation process to degrade persistent organic-pollutants. This paper investigated the effect of several operating parameters on the degradation of a recalcitrant pharmaceutical product, namely ibuprofen (IBP), using an ultrasound-assisted biological reactor. The tested operating parameters are the power density (960, 480) W/L, US frequency (1,142, 860, 578) kHz, working volume (500, 250) mL, initial IBP concentration (30, 60) mg/L, and pH (8.2, 4). It was observed that the IBP degradation was directly influenced by the power density, and the highest degradation efficiency (99%) was obtained at 960 w/L. However, the degradation of IBP at sonication time of 120 min was found to increase from 39% to 96% while decreasing the US frequency from 1,142 to 578 kHz. The working volume had no clear effect on the IBP degradation. The optimal pH was found to be 4, which resulted in 99.5% IBP degradation efficiency after 120 min of sonication time. The degradation of IBP followed the first order kinetics. Finally, the sonically-treated water was fed to a subsequent aerobic biological reactor. The results revealed that the remaining chemical oxygen demand (COD) after sonication was lowered in the biological reactor by a percentage of 47%.

scholarly journals DEGRADAÇÃO DO CORANTE AZUL REATIVO 5G PELO PROCESSO OXIDATIVO AVANÇADO UV/H2O2

e-xacta ◽  
2016 ◽  
Vol 9 (2) ◽  
Author(s):  
Denis Rafael de Souza Lima ◽  
Isabela Luiza Alves de Almeida ◽  
Vanderlei Inácio de Paula
Keyword(s):  
Hydrogen Peroxide ◽  
Ultraviolet Radiation ◽  
Chemical Oxygen Demand ◽  
Lactuca Sativa ◽  
Azo Dye ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Oxygen Demand ◽  
Liquid Wastes ◽  
Optimized Conditions

<p>Neste trabalho avaliou-se a aplicação do processo oxidativo avançado (POA) de foto-peroxidação (UV/H<sub>2</sub>O<sub>2</sub>) na degradação do azocorante têxtil comercial Azul Reativo 5G. Foram preparadas soluções sintéticas contendo o corante e tratadas através do respectivo POA, sendo a eficiência do tratamento avaliada através dos seguintes parâmetros: descoloração, redução da demanda química de oxigênio (DQO) e ecotoxicidade com sementes de Lactuca sativa. Após 30 minutos de tratamento em condições otimizadas na presença de peróxido de hidrogênio e radiação ultravioleta, foi observada descoloração na ordem de 91,8% sem redução significativa da DQO (1,8%), além de diminuição da ecotoxicidade da solução, indicando a viabilidade da aplicação do processo UV/H<sub>2</sub>O<sub>2</sub> para tratamento de resíduos líquidos contendo este azocorante.</p><p>ABSTRACT</p><p>In the present paper was evaluated the application of advanced oxidation process (AOP) photo-peroxidation (UV/H<sub>2</sub>O<sub>2</sub>) applied to degradation of the commercial textile azo dye Reactive Blue 5G. Synthetic solutions were prepared containing the dye, treated through the respective AOP and the efficiency of the treatment evaluated by the following parameters: discoloration, reduction of chemical oxygen demand (COD) and ecotoxicity with Lactuca sativa seeds. After 30 minutes of treatment in optimized conditions in the presence of hydrogen peroxide and ultraviolet radiation, discoloration was observed in order of 91.8% without significant reduction of COD (1.8%), but decrease in the ecotoxicity of the solution, indicating feasibility of the process UV/H<sub>2</sub>O<sub>2</sub> for treating liquid wastes containing this azo dye.</p>

scholarly journals EVALUASI KINERJA INSTALASI PENGOLAHAN AIR LIMBAH RSD MANGUSADA KABUPATEN BADUNG

2021 ◽  
Vol 25 (1) ◽  
pp. 30
Author(s):  
Kadek Diana Harmayani
Keyword(s):  
Wastewater Treatment ◽  
Liquid Waste ◽  
Oxygen Demand ◽  
Secondary Data ◽  
Total Suspended Solid ◽  
Quality Standards ◽  
Total Coliform ◽  
Suspended Solid ◽  
Ammonia Content ◽  
Reference Quality

The Mangusada Regional General Hospital (RSD) as a provider of health facilities certainly produces liquid waste in every operational activity. Wastewater in the Wastewater Treatment Installation (WWTI) RSD Mangusada contains Biological Oxygen Demand (BOD5), Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), ammonia, total coliform, Total Dissolved Solid (TDS), detergent, oil and fat. This study aims to evaluate the performance of the WWTI as well as to determine the content in the wastewater after being treated by the IPAL RSD Mangusada according to the reference quality standards of the Governor of Bali Regulation No.16/2016 and Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Number: P.68/Menlhk/Setjen/Kum.1/8/2016. The wastewater treatment system at RSD Mangusada uses a biological system. The data used in the analysis are secondary data, namely the Bed Occupation Rate (BOR) data in June 2020, the total number of beds, the average discharge of outlets in June 2020 and parameters of the quality and quantity of wastewater in the inlet and outlet of WWTI from January 2020 to July 2020. Based on the results of testing the quality and quantity of wastewater at the WWTI of RSD Mangusada outlet, the content of waste water in the outlet of WWTI is in accordance with the regulatory standards for the reference quality standards. In addition, the effectiveness of the efficiency of the WWTI at RSD Mangusada succeeded in reducing the ammonia content of 92.35%, BOD5 64.03%, COD 63.97%, TSS 67.03%, oil and fat 64.64%, total coliform 76.84%. , and detergent at 76.25%. But the efficiency of the WWTI of RSD Mangusada was not good enough in reducing the TDS content of -3.92%.  

Sign in / Sign up

Export Citation Format

Share Document