Environmental Engineering
Water and Wastewater
Chemical Engineering
23
Scopus Publications
150
Scholar Citations
7
Scholar h-index
5
Scholar i10-index
Scopus Publications
Application of Activated Carbon from Jojoba Seed Residue in Refinery Wastewater Treatment Shaima Albazzaz, Janaen Y. Al-Saeedi, Anwar A. Abbood, Harith Y. Mahmood, Rusul Naseer Mohammed Environmental Research Engineering and Management, 2025 The effluent flowing from oil refineries, which frequently goes into rivers, typically carries a variety of pollutants. In the present study, a quest has been undertaken to investigate the feasibility of using activated carbon prepared from both sub-fermented and unfermented jojoba seed residues for treatment of petroleum refinery wastewater. The biomass were carbonised and thermally activated at 700, 800 and 900°C respectively, then characterized for the adsorption of phenol, chemical oxygen demand (COD), biological oxygen demand (BOD), turbidity, chloride, phosphate, total dissolved solids (TDS), total suspended solid (TSS), pH, electrical conductivity and sulfate ions. The activated carbon obtained from the fermented jojoba residue at 800°C (i.e., SRB2) had, of all samples studied, the highest surface area (959 m²/g) and total pore volume (0.43 cm³/g). The sample showed a good adsorption capacity for not only lowering the COD (chemical oxygen demand reduction 76.29%) and BOD5 (bio-chemical oxygen demand 75%), but also to reduce turbidity, phenol and inorganic ion. Although complete phenol removal was not achieved to meet environmental discharge standards, SRB2 showed the best performance among all samples and showed the best fit for Freundlich model isotherm, suggesting multilayer adsorption on a heterogeneous surface. FTIR analysis confirmed the involvement of both physisorption and chemisorption mechanisms, including π–π interactions, hydrogen bonding, and carbonyl-related bonding. SEM and pore size distribution analyses confirmed the micro- and mesoporous structure of SRB2, making it well-suited for phenol adsorption. These findings highlight the effectiveness of fermented jojoba-derived activated carbon, particularly SRB2, as a sustainable, low-cost bio-adsorbent for reducing organic and inorganic pollutants in petroleum refinery wastewater.
The Removal of Azo Dyes from an Aqueous Solution Using NaOH-Activated Carbon from Phenolic Resin Shaima Albazzaz, Janaen Y. Al-Saeedi, Anwar A. Abbood, Harith Y. Mahmood, Rusul Naseer Mohammed Environmental Research Engineering and Management, 2024 Liquid dyes are discharged usually from different industries, such as textile factories, into water bodies. They are toxic compounds that can cause significant harm to humans, animals, and aquatic life due to increased water pollution. For this reason, removing dyes from wastewater is of great importance to control their negative impact and meet the standards of water quality. In this study, activated carbons were produced from phenolic resin through a chemical activation process with NaOH at high temperatures. The sample that had highest porosity and pore volume was used to adsorb two types of azo dyes Remazol Brilliant Blue R (RBBR) and Remazol Yellow dye (RY) from an aqueous solution under different conditions, i.e., changing contact time, pH, dosage, initial concentration, and temperature. The maximum removals of RBBR and RY were recorded separately at low concentration (10 ppm), acidic condition (pH < 7), adsorbent dose of 0.3 g, temperature of aqueous solution 20°C and contact time of 120 min. The Freundlich adsorption isotherm model, with its higher correlation coefficient, provided a better fit for the equilibrium data compared with the Langmuir isotherm model. The activated carbon derived from phenolic resin, which is chemically activated with NaOH at 850°C, is a promising adsorbent for the removal of azo dyes from aqueous solutions. The optimum conditions can increase the efficiency of the adsorption process.
Removal of Organic Pollutants from Wastewater Using Different Oxidation Strategies Rusul Naseer Mohammed, Nibras Raad Fajri Journal of Ecological Engineering, 2023 Many countries use nontraditional methods to treat wastewater, especially those with water lacks. Among these methods, heterogeneous photocatalysis is more commonly widely used since it converts organic molecules into carbon dioxide and water. In this study, the photocatalytic degradation process of total organic carbon was investigated by TIO 2 /UV technique (TUT). This treatment is carried out in a batch recycle reactor using a UV light and catalyst TIO 2 . The optimum operating parameters were investigated regarding the best organic removal including, total organic carbon concentration, flow rate, pH, irradiation time, and photocatalysis dosage. The result showed that the TUT is affected by reducing total organic carbon (TOC) from synthetic wastewater (SW) by 61% at 50 ml/ min of flow rate, 250 mg of catalyst concentration TIO 2 , and a concentration of TOC of 25 mg/l. Then the result of TUT was compared with a process of combining TIO 2 /UV and an oxidizing agent (Hydrogen peroxide H 2 O 2 ). It was found that 73% of organic removal was obtained which is best than TUT when using an H 2 O 2 dosage of 100 mg/l. Experimentally, Ozone was also added to the process of TUT and the result showed that the removal percentage increased to 80%.
INVESTIGATION AND ADSORPTION OF HEAVY METAL IONS BY PREPARING A NEW ACTIVATED CARBON ADSORBENT PRODUCED FROM LEAVES Journal of Engineering Science and Technology, 2022
The effect of groundwater petroleum hydrocarbons contaminants on chlorine removal in Basra city (south of Iraq): An application of mixed technology of permeable reactive barrier Saad Abu-Alhail Arab, Rusul Naseer Mohammed, and Journal of Engineering Research Kuwait, 2021 Petroleum hydrocarbon contaminants in groundwater are among the most impactful environmental problems in oil production in southern Iraq, especially Basra city. Petroleum hydrocarbon contaminants affect related projects surrounding the primary pollution site. Benzene, toluene, and dimethylbenzene are the most toxic pollutants affecting the removal of perchloroethene (Cl2C=CCl2) and trichloroethene (C2HCl3) in groundwater. These pollutants have high solubility in water, leading to their transport over long distances in groundwater and difficult removal. The influence of petroleum hydrocarbons on the chlorine removal of perchloroethene and trichloroethene was studied using a polytetrafluorethylene column packed with zero-valent iron (ZVI). Batch experiments were implemented to investigate the equilibrium supply of mixtures between the aqueous and solid stages in packed column systems. It was designated using the Freundlich isotherm expression, and the result showed that R2 was greater than 0.97 for benzene, toluene, and xylene. The column study noted that the reaction constant was decreased in all columns by approximately 48 % when the pore volume was between 50 and 205, which reflects the dechlorination priority of P-CE over T-CE. These findings indicate that benzene and toluene are more effective for adsorption on the ZVI particle surfaces owing to disparate influences.
Integrated real-time control strategy in multi-tank A2O process for biological nutrient removal treating real domestic wastewater Saad Abualhail, R. Naseer Mohammed, Lu Xiwu Arabian Journal of Chemistry, 2017 An integrated real-time anaerobic–anoxic/oxic (A2O) operated with multi-tank called IMT–A2O process was designed and operated with fluctuating influent loads for biological nutrient removal for treating real domestic wastewater. IMT–A2O process, a “phased isolation tank” technology, varies both aeration pattern and flow path in a continuous flow multi-tank system to force fluctuation of organic and nutrient concentrations in process reactors. Using an eight-phase cycle, desired biochemical transformations, are accomplished at different times in the same tank. On-line sensors (pH, ORP, and DO) were used as real-time control parameters to adjust the duration of each operational phase in the IMT–A2O process. The control system is an algorithm that automatically adjusts the cycle length to the influent wastewater characteristics according to the end points. It was found that on-line sensor values of pH, ORP, and DO were somehow related with the dynamic behaviors of nutrient concentrations in IMT–A2O. The algorithm acts in the reaction phases of the IMT–A2O cycle using ORP and pH break points of tank one to distinguish the end of denitrification and the beginning of phosphorus release, pH break point of tank two to control the end of denitrification and beginning of phosphorus release and a sudden increase in DO pattern, pH break point and ORP to control phosphorus uptake and the end of the nitrification process. Although the fluctuations in raw wastewater concentration are extreme; an influent with a low C/N ratio is deficient in organic carbon, and a low carbon source level can limit the overall biological denitrification process, the average removal efficiencies achieved for COD, ammonia–nitrogen, total nitrogen and total phosphorus were not less than 76.11%, 87.78%, 76.45% and 83.75%, respectively, using the integrated real-time control strategy. The integrated IMT–A2O exhibited a better performance in nutrient removal than the fixed-time IMT–A2O process.
Effluent characteristics of Non-settling sequencing batch reactor system treating real sewage International Journal of Applied Engineering Research, 2016
Modeling of nitritation and denitritation in a novel PITSF-SEU process using an extension of ASM2d model Rusul Naseer Mohammed, L. Xiwu Desalination and Water Treatment, 2015 In this study, an anaerobic–anoxic/oxic (A2/O) multiphased biological process called “phased isolation tank step feed technology of southeast university (PITSF-SEU)” was developed to force the oscillation of organic and nutrient concentrations in process reactors. PITSF reactor is effective for reducing energy consumption because it does not contain the internal recycle of mixed liquor and sludge return device. A computer program was built based on mass balance equations on each tank using an extension activated sludge model for simulating the soluble and particulate compounds in each tank of PITSF-SEU system. The considerable differences between the extension model and other models are two stage for nitrification process and multistage for denitrification process. Also, phosphorus removal was taken into account simultaneously in this model. The difficulty of model simulation is coming from the system operation with unsteady-state condition and the changing of multipoint step feed location with it...
Prediction and simulation the breakthrough of residual chlorine removal by granular activated carbon adsorbent using artificial neural networks Research Journal of Applied Sciences Engineering and Technology, 2012
A fast predictive of sludge age in five step SBRs using FLC model Research Journal of Applied Sciences Engineering and Technology, 2012
Application of Activated Carbon from Jojoba Seed Residue in Refinery Wastewater Treatment S Albazzaz, JY Al-Saeedi, AA Abbood, HY Mahmood, RN Mohammed Environmental Research, Engineering and Management 81 (4), 79-92 , 2025 2025
The removal of azo dyes from an aqueous solution using NaOH-activated carbon from phenolic resin S Albazzaz, JY Al-Saeedi, AA Abbood, HY Mahmood, RN Mohammed Environmental Research, Engineering and Management 80 (4), 92-100 , 2024 2024 Citations: 3
Photocatalytic removal of diazinon with Ag-coated SiO 2 @TiO 2 core–shell using the response surface methodology RKS Mhemid, LI Saeed, RN Mohammed International Journal of Environmental Science and Technology 21 (1), 329-340 , 2024 2024 Citations: 7
Removal of organic pollutants from wastewater using different oxidation strategies NR Fajri, RN Mohammed Journal of Ecological Engineering 24 (10), 351-359 , 2023 2023 Citations: 5
Investigation and adsorption of heavy metal ions by preparing a new activated carbon adsorbent produced from leaves RN Mohammed, HJH Almutter, S Abu-Alhail Journal of Engineering Science and Technology, Special Issue on MTAEAS 17, 34-42 , 2022 2022 Citations: 1
The Effect of Groundwater Petroleum Hydrocarbons Contaminants on Chlorine Removal in Basra City (South Of Iraq): An Application of Mixed Technology of Permeable Reactive Barrier Saad Abualhail , Rusul Naseer Mohammed Journal of Engineering Research 9 (2) , 2021 2021 Citations: 2
An experimental sedimentation tank for enhancing the settling of solid particles DA Yaseen, S Abu-Alhail, RN Mohammed Journal of Water and Land Development , 2021 2021 Citations: 11
REMOVAL OF FLUORIDE FROM SHATT AL-ARAB DRINKING WATER USING A NOVEL LOW COST MATERIAL R Mohammed Kufa Journal of Engineering 9 (3), 1-16 , 2018 2018
Modelling and experimental design of a stagnant film crystalliser for freezing desalination treatment of seawater using sweating steps and non-direct freezing RN Mohammed, S Abu-Alhail, ANA Hamdan Desalination and Water Treatment 97, 109-116 , 2017 2017
Integrated real-time control strategy in multi-tank A2O process for biological nutrient removal treating real domestic wastewater S Abualhail, RN Mohammed, L Xiwu Arabian Journal of Chemistry 10, S1041-S1054 , 2017 2017 Citations: 22
Modeling of nitritation and denitritation in a novel PITSF-SEU process using an extension of ASM2d model RN Mohammed, L Xiwu Desalination and Water Treatment 53 (7), 1862-1880 , 2015 2015 Citations: 3
Intercross real-time control strategy in a novel phased isolation tank step feed process for treating low C/N real wastewater under ambient temperature RN Mohammed, S Abu-Alhail, LX Wu Korean Journal of Chemical Engineering 31 (10), 1798-1809 , 2014 2014 Citations: 6
Long-term operation of a novel pilot-scale six tanks alternately operating activated sludge process in treating domestic wastewater RN Mohammed, S Abu-Alhail, L Xi-Wu Environmental technology 35 (15), 1874-1885 , 2014 2014 Citations: 20
Modeling and particular application of ASM2d model for describing organic matter and nutrient removal in a novel anaerobic-anoxic/oxic eight-phased system S Abualhail, RN Mohammed, L Xiwu, Z Zhaoping Desalination and Water Treatment 52 (13-15), 2419-2432 , 2014 2014
Achieving partial nitrification in a novel six basins alternately operating activated sludge process treating domestic wastewater RN Mohammed, S Arab, L Xiwu Korean Journal of Chemical Engineering 30 (11), 2043-2051 , 2013 2013 Citations: 3
Fluidization of fine particles and its optimal operation condition in multimedia water filter RN Mohammed, S Abualhail, X Lv Desalination and Water Treatment 51 (22-24), 4768-4778 , 2013 2013 Citations: 9
Biological nutrient removal using a novel five-step continuous flow activated sludge process technology S Abualhai, R Naseer, L Xiwu Environment Protection Engineering 39 (3) , 2013 2013 Citations: 4
Biological nutrient removal with limited organic matter using a novel anaerobic–anoxic/oxic multi-phased activated sludge process R Naseer, S Abualhail, L Xiwu Saudi journal of biological sciences 20 (1), 11-21 , 2013 2013 Citations: 28
A Fast Predictive of Sludge Age in Five Step SBRs Using FLC Model S Abualhail, AA Jassim, R Naseer, XW Lu Research Journal of Applied Sciences, Engineering and Technology 4 (15 … , 2012 2012
Prediction and Simulation the Breakthrough of Residual Chlorine Removal by Granular Activated Carbon Adsorbent Using Artificial Neural Networks R Naseer, AA Jassim, L Xi-Wu, S Abualhail Research Journal of Applied Sciences, Engineering and Technology 4 (13 … , 2012 2012 Citations: 2
MOST CITED SCHOLAR PUBLICATIONS
Biological nutrient removal with limited organic matter using a novel anaerobic–anoxic/oxic multi-phased activated sludge process R Naseer, S Abualhail, L Xiwu Saudi journal of biological sciences 20 (1), 11-21 , 2013 2013 Citations: 28
Integrated real-time control strategy in multi-tank A2O process for biological nutrient removal treating real domestic wastewater S Abualhail, RN Mohammed, L Xiwu Arabian Journal of Chemistry 10, S1041-S1054 , 2017 2017 Citations: 22
Long-term operation of a novel pilot-scale six tanks alternately operating activated sludge process in treating domestic wastewater RN Mohammed, S Abu-Alhail, L Xi-Wu Environmental technology 35 (15), 1874-1885 , 2014 2014 Citations: 20
An experimental sedimentation tank for enhancing the settling of solid particles DA Yaseen, S Abu-Alhail, RN Mohammed Journal of Water and Land Development , 2021 2021 Citations: 11
Fluidization and optimum backwashing conditions in multimedia filter R Naseer, SA Alhail, L Xi-Wu Research Journal of Applied Sciences, Engineering and Technology 3 (11 … , 2011 2011 Citations: 10
Fluidization of fine particles and its optimal operation condition in multimedia water filter RN Mohammed, S Abualhail, X Lv Desalination and Water Treatment 51 (22-24), 4768-4778 , 2013 2013 Citations: 9
Experimental and theoretical studies of equilibrium isotherms for pure light hydrocarbons adsorption on 4A zeolite MJ Ahmed, AHAK Mohammed, AAH Kadhum Korean Journal of Chemical Engineering 27 (6), 1801-1804 , 2010 2010 Citations: 8
Photocatalytic removal of diazinon with Ag-coated SiO 2 @TiO 2 core–shell using the response surface methodology RKS Mhemid, LI Saeed, RN Mohammed International Journal of Environmental Science and Technology 21 (1), 329-340 , 2024 2024 Citations: 7
Intercross real-time control strategy in a novel phased isolation tank step feed process for treating low C/N real wastewater under ambient temperature RN Mohammed, S Abu-Alhail, LX Wu Korean Journal of Chemical Engineering 31 (10), 1798-1809 , 2014 2014 Citations: 6
Removal of organic pollutants from wastewater using different oxidation strategies NR Fajri, RN Mohammed Journal of Ecological Engineering 24 (10), 351-359 , 2023 2023 Citations: 5
Biological nutrient removal using a novel five-step continuous flow activated sludge process technology S Abualhai, R Naseer, L Xiwu Environment Protection Engineering 39 (3) , 2013 2013 Citations: 4
The removal of azo dyes from an aqueous solution using NaOH-activated carbon from phenolic resin S Albazzaz, JY Al-Saeedi, AA Abbood, HY Mahmood, RN Mohammed Environmental Research, Engineering and Management 80 (4), 92-100 , 2024 2024 Citations: 3
Modeling of nitritation and denitritation in a novel PITSF-SEU process using an extension of ASM2d model RN Mohammed, L Xiwu Desalination and Water Treatment 53 (7), 1862-1880 , 2015 2015 Citations: 3
Achieving partial nitrification in a novel six basins alternately operating activated sludge process treating domestic wastewater RN Mohammed, S Arab, L Xiwu Korean Journal of Chemical Engineering 30 (11), 2043-2051 , 2013 2013 Citations: 3
Demonstration case of petrochemical wastewater treatment plant. S Abualhail, R Naseer, LXW Lu XiWu 2010 Citations: 3
The Effect of Groundwater Petroleum Hydrocarbons Contaminants on Chlorine Removal in Basra City (South Of Iraq): An Application of Mixed Technology of Permeable Reactive Barrier Saad Abualhail , Rusul Naseer Mohammed Journal of Engineering Research 9 (2) , 2021 2021 Citations: 2
Prediction and Simulation the Breakthrough of Residual Chlorine Removal by Granular Activated Carbon Adsorbent Using Artificial Neural Networks R Naseer, AA Jassim, L Xi-Wu, S Abualhail Research Journal of Applied Sciences, Engineering and Technology 4 (13 … , 2012 2012 Citations: 2
A Fast Predicting Neural Fuzzy Model for Suspended Solid Removal Efficiency in Multimedia Filter S ABUALHAIL Journal of Environmental Protection , 2010 2010 Citations: 2
Investigation and adsorption of heavy metal ions by preparing a new activated carbon adsorbent produced from leaves RN Mohammed, HJH Almutter, S Abu-Alhail Journal of Engineering Science and Technology, Special Issue on MTAEAS 17, 34-42 , 2022 2022 Citations: 1
Prediction and Simulation of Multimedia Filter Performance Using Artificial Neural Network S AbuAlhail, XW Lu, R Naseer 2011 International Conference on Internet Technology and Applications, 1-4 , 2011 2011 Citations: 1