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- 저자 : Ratnesh Kumar Patel (검색결과 1 건)
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Ratnesh Kumar Patel,Ravi Shankar,Prateek Khare,Prasenjit Mondal 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.7
This study demonstrates the optimization of treatment option, an integrated advanced-oxidation process(AOP) based approach where integration of two processes, ultrasonication (US) and electrocoagulation (EC), wereapplied for sugar industry wastewater (SIW) treatment. Experimental results confirm that the individual US and ECprocesses for SIW treatment are found to be inefficient, as only 16% COD removal (equivalent to COD removal:268mg/L) is achieved with US process in 20min, while 68% COD removal (equivalent to COD removal: 1,142mg/L)is achieved in 60 min operation time with EC process. Encouraging results were obtained after integration of US(10.6% COD removal in 20min equivalent to COD removal from 1,680mg/L to 1,502mg/L) with EC (82% CODremoval in 30 min equivalent to COD removal from 1,502mg/L to 270mg/L) process, which is collectively classified asultrasonication-electrochemical (US+EC) process. Overall integration of US and EC process ultimately increased theCOD removal up to ~84% (equivalent to COD removal from 1,680mg/L to 270mg/L) in comparatively shorter operatingtime (US+EC=30min). Calorific value of sludge and scum obtained after EC treatment was determined as 3.69and 2.87MJ/kg, respectively. Treatment cost of sono-electrochemical is estimated based on 1 kg COD removal or 1m3wastewater as 1.40 or 1.974 $, respectively, which is found on lower ends when compared with the many other availabletreatment technologies.
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