Production and stability of myco-flocculants from Lentinus squarrosulus RWF5 and sSimplicillium obclavatum RWF6 for reduction of water turbidity

The production and stability of two novel myco-flocculants produced by river water fungus (RWF) were investigated. Screening tests were conducted to find suitable nutrients, pH, nutrient concentration, inoculum dose, and stability for two myco-flocculants L. squarrosulus (RWF5) and S. obclavatum (RW...

Full description

Bibliographic Details
Main Authors:	Jebun, Nessa, Alam, Md. Zahangir, Al-Mamun, Abdullah, Ahmad Raus, Raha
Format:	Article
Language:	English English English
Published:	Kulliyyah of Engineering, International Islamic University Malaysia 2018
Subjects:	TD169 Environmental protection
Online Access:	http://irep.iium.edu.my/64273/ http://irep.iium.edu.my/64273/ http://irep.iium.edu.my/64273/ http://irep.iium.edu.my/64273/1/64273_Production%20and%20stability%20of%20myco-flocculants.pdf http://irep.iium.edu.my/64273/2/64273_Production%20and%20stability%20of%20myco-flocculants_SCOPUS.pdf http://irep.iium.edu.my/64273/3/64273_Production%20and%20stability%20of%20myco-flocculants_WOS.pdf

id	iium-64273
recordtype	eprints
spelling	iium-642732018-06-27T03:11:33Z http://irep.iium.edu.my/64273/ Production and stability of myco-flocculants from Lentinus squarrosulus RWF5 and sSimplicillium obclavatum RWF6 for reduction of water turbidity Jebun, Nessa Alam, Md. Zahangir Al-Mamun, Abdullah Ahmad Raus, Raha TD169 Environmental protection The production and stability of two novel myco-flocculants produced by river water fungus (RWF) were investigated. Screening tests were conducted to find suitable nutrients, pH, nutrient concentration, inoculum dose, and stability for two myco-flocculants L. squarrosulus (RWF5) and S. obclavatum (RWF6). The strains showed good flocculating activity in reducing turbidity of kaolin suspension while malt extract was used as nutrient source. Supernatants of RWF5 and RWF6 were able to reduce turbidity from 900±10 NTU to 46 NTU (95%) and 195 NTU (78%), respectively. In order to enhance the production, optimization of cultivation conditions were studied using a one-factor-at-a-time (OFAT) method. L. squarrosulus (RWF5) reduced 96% of turbidity at optimum conditions, comprising of 0.1% (w/v) malt extract, 3% (v/v) inoculum dose, and initial pH 7.0 for 6 days. The results of the compatible mixed culture showed good flocculation activity at 88% compared to a single culture of S. obclavatum at 78%. On the other hand, L. squarrosulus showed better turbidity reduction in the single culture rather than the mixed culture. The stability of L. squarrosulus and S. obclavatum supernatants showed excellent turbidity reduction over a wide pH range of 4-8 with the maximal flocculation rate of 96% and 90%, respectively, at pH 7.0. They also exhibited high turbidity removal ability in a temperature range of 4 oC – 55 oC for 24h with a maximum turbidity removal rate of 96% (RW5) and 87% (RW6) at 25 oC. Time stability of the L. squarrosulus supernatant showed good turbidity removal potential at above 90% at room temperature (28± 2 oC) and 85% at low temperature (4 oC) for 12 days. The high flocculating rate of the myco-flocculants and their good stability under wide range of temperature indicated their potentiality as biodegradable flocculants for water and wastewater treatment industry. Kulliyyah of Engineering, International Islamic University Malaysia 2018-06-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/64273/1/64273_Production%20and%20stability%20of%20myco-flocculants.pdf application/pdf en http://irep.iium.edu.my/64273/2/64273_Production%20and%20stability%20of%20myco-flocculants_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/64273/3/64273_Production%20and%20stability%20of%20myco-flocculants_WOS.pdf Jebun, Nessa and Alam, Md. Zahangir and Al-Mamun, Abdullah and Ahmad Raus, Raha (2018) Production and stability of myco-flocculants from Lentinus squarrosulus RWF5 and sSimplicillium obclavatum RWF6 for reduction of water turbidity. IIUM Engineering Journal, 19 (1). pp. 48-58. ISSN 1511-788X E-ISSN 2289-7860 http://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/843 https://doi.org/10.31436/iiumej.v19i1.843
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TD169 Environmental protection
spellingShingle	TD169 Environmental protection Jebun, Nessa Alam, Md. Zahangir Al-Mamun, Abdullah Ahmad Raus, Raha Production and stability of myco-flocculants from Lentinus squarrosulus RWF5 and sSimplicillium obclavatum RWF6 for reduction of water turbidity
description	The production and stability of two novel myco-flocculants produced by river water fungus (RWF) were investigated. Screening tests were conducted to find suitable nutrients, pH, nutrient concentration, inoculum dose, and stability for two myco-flocculants L. squarrosulus (RWF5) and S. obclavatum (RWF6). The strains showed good flocculating activity in reducing turbidity of kaolin suspension while malt extract was used as nutrient source. Supernatants of RWF5 and RWF6 were able to reduce turbidity from 900±10 NTU to 46 NTU (95%) and 195 NTU (78%), respectively. In order to enhance the production, optimization of cultivation conditions were studied using a one-factor-at-a-time (OFAT) method. L. squarrosulus (RWF5) reduced 96% of turbidity at optimum conditions, comprising of 0.1% (w/v) malt extract, 3% (v/v) inoculum dose, and initial pH 7.0 for 6 days. The results of the compatible mixed culture showed good flocculation activity at 88% compared to a single culture of S. obclavatum at 78%. On the other hand, L. squarrosulus showed better turbidity reduction in the single culture rather than the mixed culture. The stability of L. squarrosulus and S. obclavatum supernatants showed excellent turbidity reduction over a wide pH range of 4-8 with the maximal flocculation rate of 96% and 90%, respectively, at pH 7.0. They also exhibited high turbidity removal ability in a temperature range of 4 oC – 55 oC for 24h with a maximum turbidity removal rate of 96% (RW5) and 87% (RW6) at 25 oC. Time stability of the L. squarrosulus supernatant showed good turbidity removal potential at above 90% at room temperature (28± 2 oC) and 85% at low temperature (4 oC) for 12 days. The high flocculating rate of the myco-flocculants and their good stability under wide range of temperature indicated their potentiality as biodegradable flocculants for water and wastewater treatment industry.
format	Article
author	Jebun, Nessa Alam, Md. Zahangir Al-Mamun, Abdullah Ahmad Raus, Raha
author_facet	Jebun, Nessa Alam, Md. Zahangir Al-Mamun, Abdullah Ahmad Raus, Raha
author_sort	Jebun, Nessa
title	Production and stability of myco-flocculants from Lentinus squarrosulus RWF5 and sSimplicillium obclavatum RWF6 for reduction of water turbidity
title_short	Production and stability of myco-flocculants from Lentinus squarrosulus RWF5 and sSimplicillium obclavatum RWF6 for reduction of water turbidity
title_full	Production and stability of myco-flocculants from Lentinus squarrosulus RWF5 and sSimplicillium obclavatum RWF6 for reduction of water turbidity
title_fullStr	Production and stability of myco-flocculants from Lentinus squarrosulus RWF5 and sSimplicillium obclavatum RWF6 for reduction of water turbidity
title_full_unstemmed	Production and stability of myco-flocculants from Lentinus squarrosulus RWF5 and sSimplicillium obclavatum RWF6 for reduction of water turbidity
title_sort	production and stability of myco-flocculants from lentinus squarrosulus rwf5 and ssimplicillium obclavatum rwf6 for reduction of water turbidity
publisher	Kulliyyah of Engineering, International Islamic University Malaysia
publishDate	2018
url	http://irep.iium.edu.my/64273/ http://irep.iium.edu.my/64273/ http://irep.iium.edu.my/64273/ http://irep.iium.edu.my/64273/1/64273_Production%20and%20stability%20of%20myco-flocculants.pdf http://irep.iium.edu.my/64273/2/64273_Production%20and%20stability%20of%20myco-flocculants_SCOPUS.pdf http://irep.iium.edu.my/64273/3/64273_Production%20and%20stability%20of%20myco-flocculants_WOS.pdf
first_indexed	2023-09-18T21:31:11Z
last_indexed	2023-09-18T21:31:11Z
_version_	1777412521621192704

Production and stability of myco-flocculants from Lentinus squarrosulus RWF5 and sSimplicillium obclavatum RWF6 for reduction of water turbidity

Similar Items