Optimum Operating Conditions for a Granular Activated Carbon Filter Treating Stormwater Containing Polychlorinated Biphenyls: Backwashing and Empty Bed Contact Time

2010 ◽  
Vol 27 (5) ◽  
pp. 403-410 ◽  
Author(s):  
Aiman Q. Jaradat ◽  
Stefan J. Grimberg ◽  
Thomas M. Holsen ◽  
Rajat S. Ghosh
Keyword(s):  
Activated Carbon ◽  
Polychlorinated Biphenyls ◽  
Contact Time ◽  
Granular Activated Carbon ◽  
Operating Conditions ◽  
Optimum Operating ◽  
Activated Carbon Filter ◽  
Empty Bed Contact Time ◽  
Carbon Filter

scholarly journals The Treatment of Wastewater Produced from Al-Doura Refinery to Increase Production and Minimize Pollutant Materials

2021 ◽  
pp. 3984-3996
Author(s):  
Faaeza Ahmed Abdulkareem ◽  
Tariq Abed Hussain ◽  
Ahmed A. Najaf Najaf
Keyword(s):  
Activated Carbon ◽  
Reverse Osmosis ◽  
Treatment Plant ◽  
Granular Activated Carbon ◽  
Oil And Grease ◽  
Efficient Treatment ◽  
Activated Carbon Filter ◽  
Ultra Filtration ◽  
Removal Efficiencies ◽  
Carbon Filter

The undertaken study includes investigating the performance and effluent characteristics of the treatment plant of Al-Doura refinery. Influent concentrations for some important contaminants, which are TDS, oil and grease, TSS, COD, BOD, and turbidity were 2595 mg/L, 13934 mg/L, 466.45 mg/L, 2538.9 mg/L, 1739.2 mg/L, and 89.18 NTU, respectively, while the effluent concentrations were 1337.8 mg/L, 0.53mg/L, 21.7mg/L, 25.45 mg/L, 17.81 mg/L, and 7.08 NTU, respectively, giving removal efficiencies of 44.47%, 99.99%, 94.4%, 98.96%, 98.96% and 92.05%, respectively. All these results indicate that Al-Doura wastewater treatment plant was efficient in removing contaminants according to Iraqi and EPA specifications. Hence, the second part of this study concentrated on finding a simple and efficient treatment method to treat the effluent so that it can be reused in the boiler system. A pilot plant was designed and dedicated for this purpose, including three units of granular activated carbon filter, ultra filtration filter, and reverse osmosis filter. Average removal efficiencies of oil and grease, turbidity, COD, and BOD were 85.25%, 100%, 34.92%, and 31.11%, respectively at the granular activated carbon filter, with very low efficiencies for the removal of TDs and conductivity. Ultra filtration showed average removal efficiencies for COD and BOD of 30.81% and 32.31%, respectively. While the average removal efficiencies for TDs and conductivity was very low. The reverse osmosis filter removed TDs and conductivity very efficiently, giving average removal efficiencies of 97.63% and 95.43%, respectively. In addition, it provided good removal percentages for COD and BOD, with values of 61.73% and 64.1%, respectively. A recycling procedure was created and the results were eventually comparable to those conferred by some of the traditional approaches.

scholarly journals Chemical-Free Greywater Treatment Using Aeration, Sedimentation, Followed by Granular Activated Carbon Filter (GAC) -A Case Study of Baghdad city household

2020 ◽  
Vol 26 (10) ◽  
pp. 66-79
Author(s):  
Marwa M. Ali ◽  
Nawar Omran Ali ◽  
Mahdi Shanshal Jaafar
Keyword(s):  
Activated Carbon ◽  
Removal Efficiency ◽  
Irrigation Treatment ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Granular Activated Carbon ◽  
Water Source ◽  
Small Scale ◽  
Activated Carbon Filter ◽  
Carbon Filter

Greywater is a possible water source that can be improved for meeting the quality required for irrigation. Treatment of greywater can range from uncomplicated coarse filtration to advanced biological treatment. This article presents a simple design of a small scale greywater treatment plant, which is a series of physical and natural processes including screening, aeration, sedimentation, and filtration using granular activated carbon filter and differentiates its performance with sand filter. The performance of these units with the dual filter media of (activated carbon with sand) in treatment of greywater from Iraqi house in Baghdad city during 2019 and that collected from several points including washbasins, kitchen sink, bathrooms, and laundry, was recorded in terms of removal efficiency of particular pollutants like Turbidity 94%, chemical oxygen demand (COD) 93%, and oil 91%. Dual filter was the most effective filter for decreasing these pollutants, while sand indicates the lowest removal efficiency. In general, granular activated carbon media seemed to be the most proper medium to improve greywater quality for reaching the quality of irrigation within the terms of organic matter decrease. Accordingly, this technology may be reliable for greywater treatment in a residential area.

Granular Activated Carbon Filter-Adsorber Systems

1987 ◽  
Vol 79 (12) ◽  
pp. 64-74 ◽  
Author(s):  
Sandra L. Graese ◽  
Vernon L. Snoeyink ◽  
Ramon G. Lee
Keyword(s):  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Activated Carbon Filter ◽  
Carbon Filter

Granular Activated Carbon Sequencing Batch Biofilm Reactor to Treat Problematic Wastewaters

1992 ◽  
Vol 26 (5-6) ◽  
pp. 1195-1203 ◽  
Author(s):  
M. A. A. Jaar ◽  
P. A. Wilderer
Keyword(s):  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Biofilm Reactor ◽  
Adsorptive Capacity ◽  
Substrate Removal ◽  
Sequencing Batch Biofilm Reactor ◽  
Subsequent Decrease ◽  
Activated Carbon Filter ◽  
Micro Organisms ◽  
Carbon Filter

Experiments were conducted to study the performance of a reactor packed with granular activated carbon, and operated in a sequencing fill and draw mode. The reactor was inoculated with micro-organisms, loaded with a solution of 3-chlorobenzoate and thioglycolic acid. Oxygen was transfered to the microorganisms by means of silicon rubber tubings embedded in the activated carbon bed. Comparative studies were conducted with a continuous flow activated carbon filter and with a reactor packed with sand instead of granular activated carbon. Periodic operation of the granular activated carbon reactor provided superior results. High substrate removal efficiency was achieved as was high process stability under shock loading conditions, the latter mainly as a result of intermediate adsorption and subsequent decrease of toxic effects. After a period of 14 months of continuous operation the activated carbon had maintained about 90 per cent of its adsorptive capacity.

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