Ali Turki Alzeyadi
@en.qu.edu.iq
Department of Civil Engineering, College of Engineering
university of AlQadisiyah, College of Engineering
PhD in Environmental Engineering
EDUCATION
PhD in Environmental Engineering
RESEARCH, TEACHING, or OTHER INTERESTS
Environmental Engineering, Civil and Structural Engineering, Engineering, Fluid Flow and Transfer Processes
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Ali Alzeyadi, , Nadhir Al-Ansari, Ali Al-Attabi, Muhanad Mosa, , , and
Al-Qadisiyah Journal for Engineering Sciences (QJES)
In this research, an assessment was conducted for several materials to examine their efficiency for sorption phosphate and their potential use as filter media. This work focuses on seeking materials that can achieve high, rapid, and robust phosphate retention. To assess the phosphate removal efficiency, batch-mode testing was conducted. The capability of the selected materials for effectively removal the phosphate is largely influenced by their inherent properties. Therefore, this research determines the effectiveness of the material by examining its physical and chemical characteristics. The selection method for these materials was guided by the understanding that the sorbents that have the most effective behavior for phosphate tend to contain easily soluble Ca/Mg compounds or Fe/Al hydroxides. The findings of the batch experiments demonstrated that material such as Bio ash (Bio-A) exhibited superior phosphate removal performance throughout the entire duration of the experiments. In contrast, materials calcium carbonate (C-C) and conventional silica (C-S) displayed relatively poor removal performance compared to Bio-A.
Ali Alzeyadi, Nadhir Al-Ansari, Jan Laue, and Ali Alattabi
Ital Publication
Excessive richness of nutrients in water bodies such as rivers, lakes and ponds lead into deterioration of aquatic life as a results of dense growth of algae. Phosphate is one of the main nutrients that should be controlled to prevent this serious issue. Utilizing low cost material as a phosphate sorbent is offering a treatment method characterized as a sustainable solution. In this study the efficiency of biomass bottom ash BBA as phosphate sorbent material from aqueous solution is investigated. Batch experiments were undertaken, in which a particular mass of BBA was brought into contact with the phosphate solution. The experiments studied the influence of pH (different phosphate solutions were prepared with pH range 4 to 8), temperature (adsorption capacity measured at the temperature range of 10 to 30 °C), and contact time. In addition, the adsorption isotherm models were also applied to better understand the mechanism of phosphate sorption by BBA. The results revealed that the bonding between the cations (BBA surface) and anions (phosphate solution) is significantly affected by the pH of the solution. BBA presents an excellent phosphate sorption, especially, at low pH value and temperature around 20 oC. The method of this research can be adopted as a followed strategy for examination the capability of selected material for phosphorus removal from wastewater.
Ali W. Alattabi, Clare B. Harris, Rafid M. Alkhaddar, Montserrat Ortoneda-Pedrola, and Ali T. Alzeyadi
Elsevier BV
Ali W N Alattabi, Clare B Harris, Rafid M Alkhaddar, and Ali Alzeyadi
IEEE
This study was performed to improve the settling performance of the solids in the activated sludge process without using any of the additives that have been used recently by researchers worldwide to tackle this issue. Four different hydraulic retention times (HRTs) have been studied to find their effects on the solids' settling and treatment efficiency in an aerobic suspension sequencing batch reactor (ASSBR). The results obtained from this study showed that increasing the hydraulic retention time from 6 h to 12 h led to improving the COD and nitrate-nitrogen removal efficiency; it was raised from 78% to 94% for COD and from 75% to 97% for nitrate-nitrogen. However, when the HRT increased from 12 h to 18 h, the removal efficiency of the COD and nitrate-nitrogen reduced from 94% - 91 for COD and 97% - 94% for nitrate-nitrogen The removal efficiency of COD and nitrate-nitrogen remained constant when the HRT was further increased from 18 h to 24 h. The solids' settling performance was monitored through sludge volume index (SVI) test and scanning electron microscopy (SEM). The SVI value was decreased from 123 ml/g to 82 ml/g when the HRT was increased from 6 h to 12 h, while it was not affected when the HRT was extended to 18 h and to 24 h. The optimal HRT obtained from this study is 12 h; it was superior for COD and nitrate-nitrogen removal and the solids settled steadily during that range.
Ali Waheid Alattabi, Clare Harris, Rafid Alkhaddar, Ali Alzeyadi, and Khalid Hashim
Elsevier BV
Ali Waheid Alattabi, Clare Harris, Rafid Alkhaddar, Ali Alzeyadi, and Muhammad Abdulredha
Elsevier BV
A. Alzeyadi, E. Loffill, R. Alkhaddar, and A. Alattabi
American Society of Civil Engineers
Ali Alzeyadi, Edward Loffill, and Rafid Alkhaddar
American Society of Civil Engineers