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Optimization of flocculation process for a new myco-coagulant to reduce water turbidity

Jebun, Nessa and Al-Mamun, Abdullah and Alam, Md. Zahangir and Ahmad Raus, Raha (2016) Optimization of flocculation process for a new myco-coagulant to reduce water turbidity. In: Regional Conference on Science Technology and Social Sciences 2016 (RCSTSS 2016), 4th-6th Dec. 2016, Cameron Highlands Pahang. (Unpublished)

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Abstract

The flocculation process to reduce turbidity from kaolin suspension by a new myco-coagulant was optimized. The results indicated that turbidity removal of 94% (from 650 NTU to 38 NTU within 5 minutes settling time) was achieved by a combination of rapid and slow mixing process. A sequential optimization strategy based on a statistical experimental design was used to determine the suitable rapid and slow mixing speed and time. Four process parameters were optimized by the response surface methodology (RSM), based on the face-centered central composite design (FCCCD). The optimum agitation speed and mixing time were found as 250 rpm & 7 mins for rapid mixing stage; and as 90 rpm & 22 minutes for slow mixing stage, respectively. Analysis of variance (ANOVA) showed a good regression coefficient (R2) of 0.95, which indicated a satisfactory fit of the model data with the experimental results. The findings were statistically significant at p<0.05.

Item Type: Conference or Workshop Item (Plenary Papers)
Additional Information: 5174/55199
Uncontrolled Keywords: Coagulation, Flocculation, Myco-coagulant, Optimization, Turbidity.
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD169 Environmental protection
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering > Department of Civil Engineering
Depositing User: Dr Abdullah Al Mamun
Date Deposited: 27 Feb 2017 12:11
Last Modified: 21 Mar 2017 11:31
URI: http://irep.iium.edu.my/id/eprint/55199

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