IRON AND MANGANESE REMOVAL BY NANOFILTRATION AND ULTRAFILTRATION MEMBRANES: INFLUENCE OF pH ADJUSTMENT

Kasim, Norherdawati; Mohammad, Abdul Wahab; Abdullah, Siti Rozaimah Sheikh

doi:10.17576/mjas-2017-2101-17

Cited by 16 publications

(4 citation statements)

References 17 publications

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“…This indicates that the tested membranes' performance has increased due to the solute membrane contact mechanism. [39].…”

Section: Biological Filtrationmentioning

confidence: 99%

Recent Advances in Iron, Manganese and Ammonia Removal from Brackish Groundwater Using Membranes

Ramadan

2024

Port-Said Engineering Research Journal

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In the coming decades, there will be a significant issue with the availability of drinkable water as a result of population growth, present consumption patternsand climate change. This issue will have a similar social impact to rising energy prices.By far the most prevalent and easily accessible source of freshwater is groundwater, which is then followed by lakes, reservoirs, rivers, and wetlands. But it contains minimal amounts of microbiological or chemical pollutants. Simultaneously; There is always ammonia (NH 4+ ), manganese (Mn 2+ ), and ferrous iron (Fe 2+ ) at the same time in the majority of anaerobic groundwater sources as a result of human activity and natural processes,presenting a severe risk to the security of supplies of drinking water.Problems including an unwanted taste, a brown color, pipeline obstructions, and a danger to public health because of the possibility of nervous system harm brought on by high concentrations of Fe 2+ and Mn 2+ in water sources.Consuming high levels of NH 4+ is alsolinked to major health hazards for people, including ionic balance disruption in cells that could cause convulsions. Additionally, the transformation of NH 4+ into cancercausing trihalomethanes and organochlorines is possible. Various techniques have been developed to remove Fe 2+ , Mn 2+ and NH 4+ from sources of drinking water. The use of an ultrafiltration membraneas and its features were believed to have much potential to overcome many of the problems related to ammonia, manganese and iron contamination. Any kind of adsorptive, filtration, membrane bioreactor (MBR) process, and so forth, can be used in conjunction with ultrafiltration to remove the aforementioned contaminants.

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“…This indicates that the tested membranes' performance has increased due to the solute membrane contact mechanism. [39].…”

Section: Biological Filtrationmentioning

confidence: 99%

Recent Advances in Iron, Manganese and Ammonia Removal from Brackish Groundwater Using Membranes

Ramadan

2024

Port-Said Engineering Research Journal

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“…Heavy metals such as iron and manganese are naturally present in groundwater. Kasim et al [39], study used nano-polyamide nanofiltration and ultrafiltration membranes (PA-NF, PA-UF) to investigate their ability to treat groundwater for drinking water resources. Other studies using membrane technology include [40,41,42].…”

Section: Membrane Technology For Rainwater Harvestingmentioning

confidence: 99%

Rainwater Harvesting System (RWHS) for buildings: A mini review on guidelines and potential as alternative water supply in Malaysia

Juiani,

Chang,

Leo

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Malaysia receives an abundance of rain annually (≈ 2400mm/year). The country, however, is not excused from water crises such as floods and water shortages. According to the National Water Services Commission (SPAN) data, Malaysia water consumption in year 2021 is 201 LCD and may encounter a water shortage crisis if the situation is not improved in the future. Rainwater harvesting (RWHS) has great potential in tackling water shortages. It can also combat water scarcity holistically and reduce dependency on treated water from dam reservoirs. RWHS is a sustainable alternative to tackle water crises with minimal environmental impact. Currently RWHS used for non-potable purposes like cleaning, toilet flushing, and irrigation. Due to the nature of the catchment area, there are several ways in which contaminants can enter the rainwater system and compromise the water quality. Elements such as topography, weather, and pollution sources, have a direct impact on the quality of rainwater that is collected and stored. In addition to the non-potable uses, RWH has been used for potable water in countries such as Australia and Bangladesh, but the total number of uses is still very small. For potable use, regular monitoring is required because it poses a health risk due to the presence of chemical, physical, and microbiological contaminants. If the water quality parameters meet the acceptable levels of water supply, harvested rainwater could be used for drinking purposes in many countries in the future. To ensure consistently good water quality, it is essential to establish standard operating procedures and maintenance schedules based on water safety plan approaches for both household and institutional users. This paper aims to review existing management guidelines and explore potential technologies for rainwater harvesting in buildings across Malaysia.

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“…A Fe separation test was conducted using Ferrous Chloride Tetra Hydrate (FeCl 2 .4H 2 O) to make Fe ions solutions. The feed solution with the individual metal of Fe was provided at an initial concentration of 10 mg Fe/l (Kasim et al 2017). The concentration of Fe in the water was measured using a pack test ion-selective kit from Kyoritsu Chemical-Check Lab., Corp., Japan.…”

Section: Fe Filtration Testmentioning

confidence: 99%

Facile fabrication of low-cost activated carbon bonded polyethersulfone membrane for efficient bacteria and turbidity removal

Prihandana

Sururi

Sriani³

et al. 2021

Water Practice and Technology

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The current research aimed to fabricate a cost-effective activated carbon disc for the bacteria and turbidity removal in contaminated water using polyethersulfone membrane solution as a bonding agent. The mixing compatibility and bonding stability of the blend activated carbon disc were studied with a bonding strength test. The morphology of activated carbon discs was studied by a microscope. The activated carbon discs had a thick dense layer between the powder. Activated carbon discs significantly removed the total coliforms populations (99%) when evaluated against river water whilst removal by the powder was only up to 90%. The turbidity removal efficiency for the activated carbon increased from 29%-79% with the utilization of membrane as the bonding agent in forming the disc. However, the pH of water treated by the activated carbon powder and disc did not change significantly, yet it lied within the pH range of safe drinking water (6.5–7.7). It revealed the important role of PES membranes for the activated carbon discs to improve coliform and turbidity removal in the water, ensuring the quality of water resources.

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IRON AND MANGANESE REMOVAL BY NANOFILTRATION AND ULTRAFILTRATION MEMBRANES: INFLUENCE OF pH ADJUSTMENT

Cited by 16 publications

References 17 publications

Recent Advances in Iron, Manganese and Ammonia Removal from Brackish Groundwater Using Membranes

Recent Advances in Iron, Manganese and Ammonia Removal from Brackish Groundwater Using Membranes

Rainwater Harvesting System (RWHS) for buildings: A mini review on guidelines and potential as alternative water supply in Malaysia

Facile fabrication of low-cost activated carbon bonded polyethersulfone membrane for efficient bacteria and turbidity removal

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