Performance of Myco-coagulant from Lentinus squarrosulus for Turbidity Reduction in a Settling Column
DOI:
https://doi.org/10.11113/mjfas.v21n1.2743Keywords:
Myco-coagulant, particle size distribution, river water treatment, sediment basin, turbidity.Abstract
Coagulation and flocculation are integral basic unit processes for conventional water treatment plants. Usually, chemical coagulants are used in most of the treatment plants. However, the search for natural bio-coagulants is ongoing to reduce the negative impacts of chemical coagulants on human health and the environment. In this research, a natural bio-coagulant from a local fungus (Lentinus squarrosulus) was produced. The sedimentation process in river water by this myco-coagulant was investigated using a settling column. Kaolin suspension was used as synthetic turbid water for the settling column tests. Detention time and the overflow rate of the particles are necessary to design sedimentation basins for water treatment plants. As such, tests were conducted to plot the iso-removal lines for the kaolin particles. Such data is required to design sediment or settling basins for the water treatment facilities. Therefore, detention times and overflow rates of the kaolin particles were calculated for an optimum myco-coagulant dose of 1% (v/v). To reduce 80% of the initial turbidity from the kaolin suspension, the overflow rate and detention time of the sedimentation tank should be 41.6 m/day and 59.5 minutes, respectively. In contrast, similar ranges of overflow rates and detention times could remove only about 23% of the turbidity from the kaolin suspension without any myco-coagulant. This novel, natural and biodegradable coagulant is found to have the potential for reducing turbidity in river water; therefore, also can be a good candidate for the coagulation-flocculation process in water treatment plants.
References
Aljuboori, A. H. R., Idris, A., Abdullah, N., & Mohamad, R. (2013). Production and characterization of a bio-coagulant produced by Aspergillus flavus. Bioresource Technology, 127, 489–493.
Chan, N. W. (2012). Managing urban rivers and water quality in Malaysia for sustainable water resources. International Journal of Water Resources Development, 28(2), 343–355.
Davis, M., & Cornwell, D. (2013). Introduction to environmental engineering (5th ed.). McGraw-Hill.
Deng, S., Yu, G., & Ting, Y. P. (2005). Production of a bio-coagulant by Aspergillus parasiticus and its application in dye removal. Colloids and Surfaces B: Biointerfaces, 44(4), 179–186.
Jebun, N., Al-Mamun, A., Alam, M. Z., & Raus, R. A. (2018). Optimization of flocculation process for a new myco-coagulant to reduce water turbidity. In Regional Conference on Science, Technology and Social Sciences (RCSTSS 2016) (pp. 271–281).
Jebun, N., Al-Mamun, A., Alam, M. Z., & Raus, R. A. (2016). Fungal coagulant to reduce turbidity of river water. ARPN Journal of Engineering and Applied Sciences, 11(6), 4094–4099.
Jebun, N., Mamun, A., Alam, M. Z., & Raus, R. (2018). Production and stability of myco-coagulants from Lentinus squarrosulus RWF-5 and Simplicillium obclavatum RWF-6 for reduction of water turbidity. IIUM Engineering Journal, 19, 48–58.
Jebun, N., Alam, M. Z., Mamun, A. A., & Ahmad Raus, R. (2022). Novel myco-coagulant produced by Lentinus squarrosulus for removal of water turbidity: Fungal identification and flocculant characterization. Journal of Fungi, 8(2), 192. https://doi.org/10.3390/jof8020192
Li, Y., He, N., Guan, H., Du, G., & Chen, J. (2003). A novel polygalacturonic acid bio-coagulant REA-11 produced by Corynebacterium glutamicum: A proposed biosynthetic pathway and experimental confirmation. Applied Microbiology and Biotechnology, 63(2), 200–206.
Liu, W. J., Wang, K., Li, B. Z., Yuan, H. L., & Yang, J. S. (2010). Production and characterization of an intracellular bio-coagulant by Chryseobacterium daeguense W6 cultured in low nutrition medium. Bioresource Technology, 101(3), 1044–1048.
Mirzaiy, A., Takdastan, A., Alavi, N., & Mohamadian, H. (2012). Removal of turbidity, organic matter, coliform and heterotrophic bacteria by coagulants poly aluminium chloride from Karoon River water in Iran. Asian Journal of Chemistry, 24(6), 2389–2393.
Mukherjee, S., Bhattacharya, A. K., & Mandal, S. N. (2014). Evaluation of performance of different aluminium-based coagulants and aids in river water clarification. International Journal of Sustainable Development and Planning, 9(3), 417–429.
Muyibi, S. A., & Alfugara, A. M. S. (2003). Treatment of surface water with Moringa oleifera seed extract and alum: A comparative study using a pilot scale water treatment plant. International Journal of Environmental Studies, 60(6), 617–626.
Nedjai, R., Al-Mamun, A., & Alam, M. Z. (2024). Effects of initial turbidity and myco-coagulant dose on the effectiveness of the coagulation process in water treatment. Applied Chemical Engineering, 7(2), 1546–1546.
Okaiyeto, K., Nwodo, U. U., Mabinya, L. V., Okoli, A. S., & Okoh, A. I. (2016). Evaluation of flocculating performance of a thermostable bio-coagulant produced by marine Bacillus sp. Environmental Technology, 37(14), 1829–1842.
Patterson, J. J., Smith, C., & Bellamy, J. (2013). Understanding enabling capacities for managing the “wicked problem” of nonpoint source water pollution in catchments: A conceptual framework. Journal of Environmental Management, 128, 441–452.
Rudén, C. (2004). Acrylamide and cancer risk: Expert risk assessments and the public debate. Food and Chemical Toxicology, 42(3), 335–349.
Sekabira, K., Origa, H. O., Basamba, T. A., Mutumba, G., & Kakudidi, E. (2010). Assessment of heavy metal pollution in the urban stream sediments and its tributaries. International Journal of Environmental Science and Technology, 7(3), 435–446.
Sotero-Santos, R. B., Rocha, O., & Povinelli, J. (2005). Evaluation of water treatment sludges toxicity using the Daphnia bioassay. Water Research, 39(16), 3909–3917.
Su, S., Li, D., Zhang, Q., Xiao, R., Huang, F., & Wu, J. (2011). Temporal trend and source apportionment of water pollution in different functional zones of Qiantang River, China. Water Research, 45(4), 1781–1795.
Wu, C. H., Lin, C. F., & Chen, W. R. (2004). Regeneration and reuse of water treatment plant sludge: Adsorbent for cations. Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering, 39(3), 717–728.
Yang, Z., Gao, B., & Yue, Q. (2010). Coagulation performance and residual aluminum speciation of Al2(SO4)3 and polyaluminum chloride (PAC) in Yellow River water treatment. Chemical Engineering Journal, 165(1), 122–132.
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Copyright (c) 2025 Nessa Jebun, Abdullah Al Mamun, Md Zahangir Alam, Raha Ahmad Raus, Radia Nedjai
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