Faiza Rehman

University of Poonch Rawalakot

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Noor S. Shah

COMSATS University Islamabad

Murtaza Sayed

University of Peshawar

Javed Ali Khan

Abdul Wali Khan University Mardan

Jibran Iqbal

Zayed University

Ikhtiar Gul

University of Peshawar

Kyriaki Polychronopoulou

Khalifa University of Science and Technology

Sajid Rauf

Shenzhen University

Arshid Pervez

COMSATS University Islamabad

Hasan M. Khan

University of Peshawar

Bahadar Nawab Khattak

COMSATS University Islamabad

Cooperative Institutions

University of Peshawar

COMSATS University Islamabad

Abbottabad University of Science and Technology

University of Cincinnati

King Saud University

Zayed University

University of Swabi

Abbott (Germany)

Agricultural Research Center

University of Karachi

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The Catalytic Degradation of the Inflammatory Drug Diclofenac Sodium in Water by Fe2+/Persulfate, Fe2+/Peroxymonosulfate and Fe2+/H2O2 Processes: A Comparative Analysis

Water (2023)

Faiza Rehman Waqas Ahmad Nazish Parveen Syed Khuram Zakir Sanaullah Khan

Diclofenac sodium was extensively used for treating arthritis, osteoarthritis and skeletal muscular injuries, which ultimately caused troubles for aquatic organisms as well as human beings. In this study, homogeneous catalytic advanced oxidation processes, including Fe2+/persulfate, Fe2+/peroxymonosulfate and Fe2+/H2O2, were used for the degradation of diclofenac sodium in water, without using UV-C light. About 89, 82 and 54% DCF sodium was decomposed by Fe2+/persulfate, Fe2+/peroxymonosulfate and Fe2+/H2O2, respectively, in 60 min. The degradation of diclofenac sodium followed the pseudo first-order kinetics, in all cases. The degradation efficiency of diclofenac sodium was significantly affected in the presence of various anions, such as NO3−, HCO3− and SO42−. The mineralization studies revealed 62, 45 and 32% total carbon removal by Fe2+/persulfate, Fe2+/peroxymonosulfate and Fe2+/H2O2, respectively, in 60 min. In addition, the degradation byproducts of diclofenac sodium were determined by FTIR analysis. The results revealed that the Fe2+/oxidant system, particularly Fe2+/persulfate, was a promising technology for the elimination of toxic pharmaceuticals, such as diclofenac sodium, from the water environment.

Persulfate

Diclofenac Sodium

Sodium persulfate

Diclofenac

Degradation

10.3390/w15050885

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Citations (13)

Plant Growth Promoting Rhizobacteria Impact on Typha latifolia and Phragmites australis Growth and Dissolved Oxygen

CLEAN - Soil Air Water (2018)

Faiza Rehman Arshid Pervez Bahadar Nawab Khattak Rafiq Ahmad

The current study is designed to investigate the impact of plant growth promoting rhizobacteria (PGPR) on the growth of Typha latifolia and Phragmites australis and the consequent impact on oxygen concentration in their rhizospheres. Initially, uninoculated plants are tested for the optimum temperature and light intensity combination by exposing them to sixteen combinations. An automated monitoring system for temperature and light intensity is deployed at the experimentation site. The PGPR strains T2, T5, and T7 collected from National Agriculture Research Council, Pakistan, are used to inoculate the plants and analyzed for number of leaves, fresh plant biomass, total chlorophyll, and oxygen concentration in their rhizosphere. The results indicate that the strain T7 increased chlorophyll content, number of leaves, and fresh plant biomass in T. latifolia and P. australis . The oxygen concentration is also enhanced significantly in the rhizosphere of both plants. However, strains T2 and T5 are not observed to be influencing the growth of T. latifolia and P. australis . Moreover, the enhanced oxygen concentration in the plants' rhizosphere is observed to significantly reduce the time consumption for achieving over 90% chemical oxygen demand and biochemical oxygen demand removal efficiency. Hence, it is determined that the efficiency of constructed wetlands can be improved by augmenting the rhizospheric oxygen using PGPR to accelerate the plant development. The technology has practical implications and potential to be scaled up in future.

Phragmites

Light intensity

Typha

10.1002/clen.201700353

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Citations (11)

Oxidative removal of brilliant green by UV/S2O82‒, UV/HSO5‒ and UV/H2O2 processes in aqueous media: A comparative study

Journal of Hazardous Materials (2018)

Faiza Rehman Murtaza Sayed Javed Ali Khan Noor S. Shah Hasan M. Khan

Brilliant green

Degradation

Ultraviolet visible spectroscopy

Cationic polymerization

UV filter

10.1016/j.jhazmat.2018.06.012

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Citations (203)

Constructed Wetlands: Perspectives of the Oxygen Released in the Rhizosphere of Macrophytes

CLEAN - Soil Air Water (2016)

Faiza Rehman Arshid Pervez Bahadar Nawab Khattak Rafiq Ahmad

Constructed wetland is an economical, efficient and environment friendly technology for the treatment of wastewater. The aquatic plants and microorganisms in constructed wetlands play a key role in the treatment of wastewater. Plants add oxygen during the process of photosynthesis or by direct transport from the atmosphere through their stems and roots to the rhizosphere of constructed wetlands. Moreover, macrophytes provide optimum conditions and surface area for the attachment of microorganisms to perform their activities. The oxygen released in rhizosphere of constructed wetlands has significant impacts on nutrient, gas exchange chemistry, and contaminants removal. In this review, we have compiled the published data to explore the mechanism of oxygen release by the roots of macrophytes in constructed wetlands, rhizospheric oxygen measurement techniques, role of climatic factors, and ability of different macrophytes in oxygenation of rhizosphere in constructed wetlands. Numerous studies have been carried out on enhancing the efficiency of constructed wetlands by modifying design, macrophyte species, and size of wetlands. However, the part of combination of climatic factors, microorganisms, and plant species in augmenting oxygen release in the rhizosphere is not explored so far. Therefore, in this review, we tried for the first time to compile all the parameters effecting oxygen released in the rhizosphere of macrophytes in constructed wetlands that are using worldwide for the treatment of wastewater. Moreover, this review article will provide vital information to all researchers who are working on wastewater treatment by using constructed wetlands.

Constructed wetland

10.1002/clen.201600054

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Citations (76)

Development of zerovalent iron and titania (Fe0/TiO2) composite for oxidative degradation of dichlorophene in aqueous solution: synergistic role of peroxymonosulfate (HSO5−)

Environmental Science and Pollution Research (2022)

Noorina Bibi Murtaza Sayed Noor S. Shah Faiza Rehman Abdul Naeem

Zerovalent iron

Specific surface area

Particle (ecology)

Crystal (programming language)

Degradation