CEW Features was achieved at pH 12 in continuous packed column which was much higher compared to 81% efficiency achieved in batchwise stripping of ammonia. The success of an ammonia stripping process is greatly dependent on temperature, pH, and steam to water ratio which was easier to control in continuous packed-bed reactor. As such, the selection of optimized operating parameter is vital for the ammonia stripper to achieve higher efficiency. Thus. concluding continuous steam stripping column for NH3-N removal is highly efficient, easy to operate and leading to cost effective remediation.
Figure3: Scheme for NH3-N removal by Packed bed Steam Stripping column
Internals of Packed bed Stripping Column
References 1. Stripping, Ammonia. “Technology Fact Sheet.” (2000). 2. Wastewaters, Ammonia Removal from Highstrength. “G. B. Wickramanayake, Ph. D., PE Senior Engineer ENVIRON Corporation Princeton, New Jersey.” 3. Kinidi, Lennevey, Ivy Ai Wei Tan, Abdul Wahab, Noraziah Binti, Khairul Fikri Bin Tamrin, Cirilo Nolasco Hipolito, and Shanti Faridah Salleh. “Recent Development in Ammonia Stripping Process for Industrial Wastewater Treatment.” International Journal of Chemical Engineering 2018 (2018). 4. Toth, A. J., and P. Mizsey. “Comparison of Air And Steam Stripping: Removal Of Organic Halogen Compounds From Process Wastewaters.” International Journal Of Environmental Science And Technology 12.4 (2015): 1321-1330. 5. Hassan, Sardar Q., and Dennis L. Timberlake. “Steam Stripping And Batch Distillation For The Removal And/Or Recovery Of Volatile Organic Compounds From Industrial Wastes.” Journal of the Air & Waste Management Association 42.7 (1992): 936-943. Author Details
Arvind Madalgi AGM Process Engineering, Coromandel International Ltd, Sarigam. madalgia@coromandel.murugappa.com
Samarpita Chakraborty Asst. Manager Process Engineering, Coromandel International Ltd, Sarigam Chakrabortys1@coromandel.murugappa.com 30 • December 2018
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