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  « A hybrid process of powdered activated carbon »
April 22nd, 2024, 11:41pm
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   A hybrid process of powdered activated carbon
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   Author  Topic: A hybrid process of powdered activated carbon  
sakurajun

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A hybrid process of powdered activated carbon
« on: December 26th, 2020, 2:26pm »

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A hybrid process of powdered activated carbon countercurrent two-stage adsorption and microfiltration for petrochemical RO concentrate treatmentpowdered carbon for sale
In petrochemical wastewater reclamation, the dissolved biorefractory organics from reverse osmosis concentrate (ROC) is a key obstacle to increasing the overall recovery of reverse osmosis (RO) technology. A hybrid process of countercurrent two-stage adsorption and microfiltration (CTA-MF) was proposed to remove the organics in ROC by powdered activated carbon (PAC). In order to analyze the CTA-MF process, a simple calculation method was established based on the adsorption accumulation principle and response surface methodology (RSM) equations. Approximately 37% of fresh PAC was saved through the CTA-MF process compared with a conventional adsorption process. When the fresh PAC activated carbondosage was 0.48 g/L, the average values of chemical oxygen demand (COD) and dissolved organic carbon (DOC) were decreased from 94.1 mg/L and 25.6 mg/L to 36.9 mg/L and 6.98 mg/L, respectively, which coincided well with the predicted results and met the influent requirement of RO for high overall recovery.
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