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Dr. Rozidaini Mohd Ghazi
Faculty of Earth Science, Universiti Malaysia Kelantan, 17600 Jeli, Kelantan, Malaysia

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Research Keywords & Expertise

0 Analytical Chemistry
0 Bioremediation
0 Phytoremediation
0 Wastewater Treatment
0 Water Quality

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Phytoremediation
Wastewater Treatment

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Short Biography

Rozidaini Mohd Ghazi is a senior lecturer at Faculty of Earth Science, UMK and currently holds the position of Deputy Dean (Academic and Student Development) of faculty. She earned her PhD in chemistry from Universiti Teknologi Malaysia (UTM). Her research primarily focuses on topics related to the bioremediation and phytoremediation methods in wastewater treatment. Most of her research activities involve the use of plants or waste product as an adsorbent for wastewater treatment. She is also a registered chemist with the Malaysian Institute of Chemistry (IKM) since 2018.

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Conference paper
Published: 29 December 2020 in IOP Conference Series: Earth and Environmental Science
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ACS Style

Goh Chia Pei; Rozidaini Mohd Ghazi; Nik Raihan Nik Yusoff; Mohd Zazmiezi Mohd Alias; Musfiroh Jani. Adsorption of COD in wastewater by Activated Carbon from Rice Husk. IOP Conference Series: Earth and Environmental Science 2020, 596, 1 .

AMA Style

Goh Chia Pei, Rozidaini Mohd Ghazi, Nik Raihan Nik Yusoff, Mohd Zazmiezi Mohd Alias, Musfiroh Jani. Adsorption of COD in wastewater by Activated Carbon from Rice Husk. IOP Conference Series: Earth and Environmental Science. 2020; 596 ():1.

Chicago/Turabian Style

Goh Chia Pei; Rozidaini Mohd Ghazi; Nik Raihan Nik Yusoff; Mohd Zazmiezi Mohd Alias; Musfiroh Jani. 2020. "Adsorption of COD in wastewater by Activated Carbon from Rice Husk." IOP Conference Series: Earth and Environmental Science 596, no. : 1.

Journal article
Published: 27 September 2020 in Water
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The contamination of water by heavy metals is a worldwide environmental problem. Phytoremediation and constructed wetlands have become increasingly popular as more sustainable and environmentally friendly techniques of removing heavy metals from the wastewater. This study, therefore, investigated the phytoremediation of nickel by Alocasia puber (A. puber) in a constructed wetlands (CW) microcosm. This study identified the optimum conditions for nickel (Ni) removal from wastewater using response surface methodology (RSM) with central composite design (CCD). Two operational variables were assessed: exposure time and initial Ni concentration. The optimum conditions for the maximum removal of Ni from water were an exposure time of 10 days and 99.76 mg/L initial Ni concentration. The results indicated that 95.6% removal was achieved under the optimized conditions, with a high correlation coefficient (R2 = 0.97) between the statistical model and the experimental data. Field emission scanning electron microscopy images showed anatomical changes in the A. puber samples due to Ni exposure, and transmission electron microscopy images revealed some internal damages in the A. puber, but visual Ni toxicity symptoms, such as necrosis and chlorosis, were not observed in the A. puber. This study demonstrated that A. puber planted in a constructed wetland microcosm was able to remediate wastewater contaminated with Ni.

ACS Style

Najaa Syuhada Mohamad Thani; Rozidaini Mohd Ghazi; Ikarastika Rahayu Abdul Wahab; Mohamad Faiz Mohd Amin; Zulhazman Hamzah; Nik Raihan Nik Yusoff. Optimization of Phytoremediation of Nickel by Alocasia puber Using Response Surface Methodology. Water 2020, 12, 2707 .

AMA Style

Najaa Syuhada Mohamad Thani, Rozidaini Mohd Ghazi, Ikarastika Rahayu Abdul Wahab, Mohamad Faiz Mohd Amin, Zulhazman Hamzah, Nik Raihan Nik Yusoff. Optimization of Phytoremediation of Nickel by Alocasia puber Using Response Surface Methodology. Water. 2020; 12 (10):2707.

Chicago/Turabian Style

Najaa Syuhada Mohamad Thani; Rozidaini Mohd Ghazi; Ikarastika Rahayu Abdul Wahab; Mohamad Faiz Mohd Amin; Zulhazman Hamzah; Nik Raihan Nik Yusoff. 2020. "Optimization of Phytoremediation of Nickel by Alocasia puber Using Response Surface Methodology." Water 12, no. 10: 2707.

Conference paper
Published: 23 September 2020 in IOP Conference Series: Earth and Environmental Science
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Aleeya Natasha Ramli; Rozidaini Mohd Ghazi. Removal of Oil and Grease in Wastewater using Palm Kernel Shell Activated Carbon. IOP Conference Series: Earth and Environmental Science 2020, 549, 1 .

AMA Style

Aleeya Natasha Ramli, Rozidaini Mohd Ghazi. Removal of Oil and Grease in Wastewater using Palm Kernel Shell Activated Carbon. IOP Conference Series: Earth and Environmental Science. 2020; 549 ():1.

Chicago/Turabian Style

Aleeya Natasha Ramli; Rozidaini Mohd Ghazi. 2020. "Removal of Oil and Grease in Wastewater using Palm Kernel Shell Activated Carbon." IOP Conference Series: Earth and Environmental Science 549, no. : 1.

Conference paper
Published: 23 September 2020 in IOP Conference Series: Earth and Environmental Science
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Fong Yuk Moi; Rozidaini Mohd Ghazi; Mohd Zazmiezi Mohd Alias. Removal of Emulsified Oil in Wastewater by Corn Cob Carbon. IOP Conference Series: Earth and Environmental Science 2020, 549, 1 .

AMA Style

Fong Yuk Moi, Rozidaini Mohd Ghazi, Mohd Zazmiezi Mohd Alias. Removal of Emulsified Oil in Wastewater by Corn Cob Carbon. IOP Conference Series: Earth and Environmental Science. 2020; 549 ():1.

Chicago/Turabian Style

Fong Yuk Moi; Rozidaini Mohd Ghazi; Mohd Zazmiezi Mohd Alias. 2020. "Removal of Emulsified Oil in Wastewater by Corn Cob Carbon." IOP Conference Series: Earth and Environmental Science 549, no. : 1.

Conference paper
Published: 23 September 2020 in IOP Conference Series: Earth and Environmental Science
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Mohd Zazmiezi Mohd Alias; Rozidaini Mohd Ghazi; Nik Raihan Nik Yusoff; Mohd Hafiz Jamaludin. The Efficiency of Bamboo Activated Carbon for Removal of COD from Fish Cracker Industry Wastewater via Response Surface Methodology (RSM). IOP Conference Series: Earth and Environmental Science 2020, 549, 1 .

AMA Style

Mohd Zazmiezi Mohd Alias, Rozidaini Mohd Ghazi, Nik Raihan Nik Yusoff, Mohd Hafiz Jamaludin. The Efficiency of Bamboo Activated Carbon for Removal of COD from Fish Cracker Industry Wastewater via Response Surface Methodology (RSM). IOP Conference Series: Earth and Environmental Science. 2020; 549 ():1.

Chicago/Turabian Style

Mohd Zazmiezi Mohd Alias; Rozidaini Mohd Ghazi; Nik Raihan Nik Yusoff; Mohd Hafiz Jamaludin. 2020. "The Efficiency of Bamboo Activated Carbon for Removal of COD from Fish Cracker Industry Wastewater via Response Surface Methodology (RSM)." IOP Conference Series: Earth and Environmental Science 549, no. : 1.

Journal article
Published: 01 September 2020 in Materials Science Forum
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This study investigated the effect of activating agent on activated carbon preparation and potential chemical oxygen demand (COD) reduction using activated carbons (AC) prepared. Zinc chloride, phosphoric acid and potassium hydroxide were utilized in impregnation of bamboo and rice husk. Result of SEM-EDX, FTIR as well as COD reduction were compared and discussed. The SEM displayed highest porosity in AC using KOH activation. FTIR analysis displayed obvious difference for each activation. AC using KOH activation obtained highest COD reduction.

ACS Style

Mohd Zazmiezi Mohd Alias; Rozidaini Mohd Ghazi; Nik Raihan Nik Yusoff; Mohd Hafiz Jamaludin. Effect of Activation Agents on COD Reduction Using Activated Carbon from Agricultural Residue. Materials Science Forum 2020, 1010, 453 -458.

AMA Style

Mohd Zazmiezi Mohd Alias, Rozidaini Mohd Ghazi, Nik Raihan Nik Yusoff, Mohd Hafiz Jamaludin. Effect of Activation Agents on COD Reduction Using Activated Carbon from Agricultural Residue. Materials Science Forum. 2020; 1010 ():453-458.

Chicago/Turabian Style

Mohd Zazmiezi Mohd Alias; Rozidaini Mohd Ghazi; Nik Raihan Nik Yusoff; Mohd Hafiz Jamaludin. 2020. "Effect of Activation Agents on COD Reduction Using Activated Carbon from Agricultural Residue." Materials Science Forum 1010, no. : 453-458.

Research article
Published: 30 September 2019 in BioMed Research International
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Corbicula fluminea serves as traditional food to the local people in Kelantan, Malaysia. Concerns regarding river contamination, smoking method, and associated adverse effects on public health had been increasing. Hence, this study aims to measure the level of heavy metals (Cd, Cu, Mn, Pb, and Zn) and assess human health risk in C. fluminea consumption at Kelantan. Heavy-metal analysis was done using flame atomic absorption spectrophotometry, while human health risk was assessed using provisional tolerable weekly intake (PTWI), target hazard quotient (THQ), and hazard index (HI). The estimated weekly intake (EWI) for all metals was found within PTWI, while THQ for Cd, Cu, Mn, Pb, and Zn was 0.12, 0.06, 0.04, 0.41, and 0.03, respectively. The HI was calculated at 0.61 which is less than 1, considered as the safe consumption level. Therefore, C. fluminea consumption in this study was found safe from the health risk of noncarcinogenic effect over a lifetime.

ACS Style

Koh Han Dee; Faizuan Abdullah; Siti Nor Aini Md Nasir; Suganthi Appalasamy; Rozidaini Mohd Ghazi; Aweng Eh Rak. Health Risk Assessment of Heavy Metals from Smoked Corbicula fluminea Collected on Roadside Vendors at Kelantan, Malaysia. BioMed Research International 2019, 2019, 1 -9.

AMA Style

Koh Han Dee, Faizuan Abdullah, Siti Nor Aini Md Nasir, Suganthi Appalasamy, Rozidaini Mohd Ghazi, Aweng Eh Rak. Health Risk Assessment of Heavy Metals from Smoked Corbicula fluminea Collected on Roadside Vendors at Kelantan, Malaysia. BioMed Research International. 2019; 2019 ():1-9.

Chicago/Turabian Style

Koh Han Dee; Faizuan Abdullah; Siti Nor Aini Md Nasir; Suganthi Appalasamy; Rozidaini Mohd Ghazi; Aweng Eh Rak. 2019. "Health Risk Assessment of Heavy Metals from Smoked Corbicula fluminea Collected on Roadside Vendors at Kelantan, Malaysia." BioMed Research International 2019, no. : 1-9.

Journal article
Published: 19 August 2019 in Jurnal Teknologi
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Water pollution by toxic heavy metals is a global environmental problem. It has led to the development of alternative technologies for heavy metals removal from contaminated sites. Constructed wetland microcosm by using Alocasia puber is a possible treatment method for wastewater containing heavy metals. Synthetic wastewater with heavy metals Cd, Cr, Cu, Ni, and Zn were used in this study. Several heavy metals concentrations (5 mg/L, 10 mg/L and 100 mg/L) were used in the systems. Six different hydraulic retention times (HRTs) (2, 4, 6, 8, 10 and 12 days) were tested in the present study. The results obtained showed removal efficiencies of heavy metals of >99% after day 12. The removal of Ni from 10 mg/L solutions (initial concentrations) recorded the best removal efficiency. Heavy metal translocation factor (TF) was found to be less than 1 for all metals tested, which confirmed the significance of roots as heavy metals accumulator compared to stems or leaves of A, puber. Therefore, this study concluded that A, puber has a great potential as an important component in constructed wetlands for water contaminated with heavy metals.

ACS Style

Najaa Syuhada Mohamad Thani; Rozidaini Mohd Ghazi; Mohd Faiz Mohd Amin; Zulhazman Hamzah. PHYTOREMEDIATON OF HEAVY METALS FROM WASTEWATER BY CONSTRUCTED WETLAND MICROCOSM PLANTED WITH ALOCASIA PUBER. Jurnal Teknologi 2019, 81, 1 .

AMA Style

Najaa Syuhada Mohamad Thani, Rozidaini Mohd Ghazi, Mohd Faiz Mohd Amin, Zulhazman Hamzah. PHYTOREMEDIATON OF HEAVY METALS FROM WASTEWATER BY CONSTRUCTED WETLAND MICROCOSM PLANTED WITH ALOCASIA PUBER. Jurnal Teknologi. 2019; 81 (5):1.

Chicago/Turabian Style

Najaa Syuhada Mohamad Thani; Rozidaini Mohd Ghazi; Mohd Faiz Mohd Amin; Zulhazman Hamzah. 2019. "PHYTOREMEDIATON OF HEAVY METALS FROM WASTEWATER BY CONSTRUCTED WETLAND MICROCOSM PLANTED WITH ALOCASIA PUBER." Jurnal Teknologi 81, no. 5: 1.

Conference paper
Published: 06 February 2019 in AIP Conference Proceedings
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The removal of dyes from textile wastewater effluent has become a vital process nowadays since dye are widely used in textile industries. It is well known that activated carbon (AC) is a good adsorbent for dye removal and it is widely used in industries for wastewater treatment. Palm Kernel Shell (PKS) was used in this research in order to reduce the amount of waste PKS which also known as agricultural waste. Purpose of this study was to examine the characteristics and adsorption efficiency on methylene blue (MB) dye by palm kernel shell activated carbon (PKSAC). The PKS was carbonized at 400 °C for 1 hour, impregnated in KOH with ratio 1:1 and then carbonized again at 800 °C for 15 minutes. Various parameters were investigated like pH of the MB dye solution, initial dye concentration and flow rate. The optimum conditions for the removal of MB dye are: original pH, 150 mg/L of initial dye concentration and 1 mL/min of flow rate. SEM and TGA were carried out to determine the surface morphology and weight loss of the sample respectively. It is proved that PKS can be used in preparing AC. Hence, it was concluded that PKSAC have the ability to be an alternative low cost adsorbent.

ACS Style

Voon Mei Xiang; Rozidaini Mohd Ghazi. Adsorption of methylene blue from aqueous solution using palm kernel shell activated carbon. AIP Conference Proceedings 2019, 2068, 020038 .

AMA Style

Voon Mei Xiang, Rozidaini Mohd Ghazi. Adsorption of methylene blue from aqueous solution using palm kernel shell activated carbon. AIP Conference Proceedings. 2019; 2068 (1):020038.

Chicago/Turabian Style

Voon Mei Xiang; Rozidaini Mohd Ghazi. 2019. "Adsorption of methylene blue from aqueous solution using palm kernel shell activated carbon." AIP Conference Proceedings 2068, no. 1: 020038.

Journal article
Published: 23 October 2017 in Malaysian Journal of Analytical Science
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Rozidaini Mohd Ghazi. RESPONSE SURFACE METHODOLOGY OPTIMIZATION OF OIL REMOVAL USING BANANA PEEL AS BIOSORBENT. Malaysian Journal of Analytical Science 2017, 21, 1 .

AMA Style

Rozidaini Mohd Ghazi. RESPONSE SURFACE METHODOLOGY OPTIMIZATION OF OIL REMOVAL USING BANANA PEEL AS BIOSORBENT. Malaysian Journal of Analytical Science. 2017; 21 (5):1.

Chicago/Turabian Style

Rozidaini Mohd Ghazi. 2017. "RESPONSE SURFACE METHODOLOGY OPTIMIZATION OF OIL REMOVAL USING BANANA PEEL AS BIOSORBENT." Malaysian Journal of Analytical Science 21, no. 5: 1.

Articles
Published: 01 August 2013 in DESALINATION AND WATER TREATMENT
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This work reports an initial study on the use of natural compound, i.e. onion juice, as a novel environmental-friendly chromogenic agent to determine the concentration of formaldehyde. The method is based on the reaction of formaldehyde with yellow onion juice to produce a pink solution which absorb strongly at 514 nm. Factors affecting the extent of reaction between formaldehyde and onion juice such as temperature, pH of onion juice and reaction time were optimized using the response surface methodology approach via the Box–Behnken design. The experimental values obtained were close to the predicted values indicating good approximation of the model. The optimum response was obtained by heating the onion juice at 60°C, pH 4.9, reaction temperature of 103°C and reaction time of 17 min. A linear calibration curve was obtained using formaldehyde concentrations ranging from 0.5 to 15 mg L−1. This study demonstrates the potential application of onion juice as a simple, safe and environmental friendly technique for quantitative determination of formaldehyde from various sources such as drinking water and aquaculture products.

ACS Style

Rozidaini Mohd Ghazi; Wan Azlina Ahmad. Development of formaldehyde detection method using onion juice as chromogenic agent. DESALINATION AND WATER TREATMENT 2013, 52, 1093 -1100.

AMA Style

Rozidaini Mohd Ghazi, Wan Azlina Ahmad. Development of formaldehyde detection method using onion juice as chromogenic agent. DESALINATION AND WATER TREATMENT. 2013; 52 (4):1093-1100.

Chicago/Turabian Style

Rozidaini Mohd Ghazi; Wan Azlina Ahmad. 2013. "Development of formaldehyde detection method using onion juice as chromogenic agent." DESALINATION AND WATER TREATMENT 52, no. 4: 1093-1100.