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Hire Dhirar B.

Algeria

USD 90 /hr

PhD | Data Analysis, Material Characterization, Adsorption Studies, Scientific Writing & Figure Preparation

Profile Summary

I am Dr. Dhirar Ben Salem, a researcher specializing in adsorbent materials, water purification technologies, and advanced material characterization. I provide high-quality scientific support for researchers, companies, and laboratories needing data analysis, figure preparation, interpretation of characterization results, and scientific writing. My expertise includes XRD, FTIR, UV–Vis, TEM, SEM-EDX, XPS, BET/BJH, TGA, VSM, AFM, AAS, pH PZC, Zeta Potential, and water quality analysis. I am highly skilled in OriginLab, HighScore, SpectraGryph, ImageJ, Gwyddion, Excel, and other scientific software for creating publication-ready graphs and conducting advanced analysis.

Subject Matter Expertise

• ★ Environmental Science
• ☆ Chemical Reagent Development
• ☆ Catalysis
• ☆ Trace Elements
• ☆ Surface Science
• ☆ Materials Science & Engineering
• ☆ Biocatalysis
• ☆ Inorganic Chemistry
• ☆ Biopolymers
• ☆ Polymer Chemistry
• ☆ Electrochemistry
• ☆ Agricultural Chemistry
• ☆ Biomaterials
• ☆ Green Chemistry
• ☆ Biotechnology & Bioengineering
• ☆ Environmental Biotechnology
• ☆ Environmental Remediation
• ☆ Environmental Chemistry
• ☆ Excel

Services

• Writing
• Research
• Data & AI

Writing Technical Writing, General Proofreading & Editing

Research Feasibility Study, Fact Checking, Gap Analysis, Gray Literature Search, Scientific and Technical Research, Systematic Literature Review

Data & AI Predictive Modeling, Data Processing, Data Insights

Work Experience

University of Biskra

- Present

Researcher

Larhyss Lab, University of Biskra

April 2021 - Present

Education

PhD (Department of Civil Engineering and Hydraulics)

University of Biskra

April 2021 - July 2024

Certifications

• Erasmus Plus internship

  Cadiz University, Spain

  October 2023 - February 2024

Publications

JOURNAL ARTICLE

Dhirar Ben Salem, Khemissi Yahiaoui, Maria Bernardo, Jose Manuel Gatica, Abdelkader Ouakouak, Fouzia Touahra, Abdelazeem Saad Eltaweil, Hai Nguyen Tran (2025). Insights into cadmium adsorption characteristics and mechanisms by new granular alginate hydrogels reinforced with biochar: Important role of cation exchange . Journal of Environmental Management.

Dhirar Ben Salem, Amel Riah, Salim Bousba, Hmaza Allal, Sarra Batoul Benamira, Malak Dorsaf Allam, Safia Bougherara, Abdellah Zaiter (2025). Synthesis and adsorption efficiency of magnetically separable sawdust-based activated carbon for ibuprofen removal . Surfaces and Interfaces.

Dhirar Ben Salem, Amel Riah, Salim Bousba, Hmaza Allal, Sarra Batoul Benamira, Malak Dorsaf Allam, Safia Bougherara, Abdellah Zaiter (2025). Synthesis and Adsorption Efficiency of Magnetically Separable Sawdust-Based Activated Carbon for Ibuprofen Removal . Surfaces and Interfaces.

Dhirar Ben Salem, Nouara Boudjema, Elleuch Lobna, Ouakouak Abdelkader, Nabil Mameri (2024). Treatment of contaminated river water by batch electrocoagulation system using aluminium and iron electrodes: Performance of process and statistical analysis . Water, Air, & Soil Pollution.

@article{Nouioua_2023, doi = {10.1080/21655979.2023.2236843}, url = {https://doi.org/10.1080%2F21655979.2023.2236843}, year = 2023, month = {jul}, publisher = {Informa {UK} Limited}, volume = {14}, number = {1}, pages = {290--306}, author = {Asma Nouioua and Dhirar Ben Salem and Abdelkader Ouakouak and Noureddine Rouahna and Omirserik Baigenzhenov and Ahmad Hosseini-Bandegharaei}, title = {Production of biochar from $\less$i$\greater$Melia azedarach$\less$/i$\greater$ seeds for the crystal violet dye removal from water: combining of hydrothermal carbonization and pyrolysis}, journal = {Bioengineered}} .

Dhirar Ben Salem, Abdelkader Ouakouak, Fouzia TOUAHRA, Noureddine Hamdi, AbdelAzeem Eltaweil, Asad Syed, Raj Boopathy, Dr. Hai Nguyen Tran(2023). Easy separable, floatable, and recyclable magnetic-biochar/alginate bead as super-adsorbent for adsorbing copper ions in water media . Bioresource Technology. 383. p. 129225. Elsevier {BV}

Rouahna, N., Salem, D.B., Bouchareb, I., Nouioua, A., Ouakouak, A., Fadel, A., Hamdi, N., Boopathy, R.(2023). Reduction of Crystal Violet Dye from Water by Pomegranate Peel–Derived Efficient Biochar: Influencing Factors and Adsorption Behaviour . Water, Air, and Soil Pollution. 234. (5).