Syed Muhammad Usman Shah

COMSATS University Islamabad

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Mohd Azmuddin Abdullah

Universiti Malaysia Terengganu

Anees Ahmad

Lahore Garrison University

Mohd Fariduddin Othman

Malaysia Theological Seminary

Saqib Mumtaz

New Cross Hospital

Asia Nosheen

COMSATS University Islamabad

Muhammad Nadeem Hassan

COMSATS University Islamabad

Humaira Yasmin

COMSATS University Islamabad

Rabia Naz

Bahauddin Zakariya University

Azizul Buang

Universiti Teknologi Petronas

Zahra Jabeen

COMSATS University Islamabad

Cooperative Institutions

COMSATS University Islamabad

Quaid-i-Azam University

Dow University of Health Sciences

Civil Hospital Karachi

CMH Lahore Medical College and Institute of Dentistry

Universiti Malaysia Terengganu

Bahauddin Zakariya University

Abdul Wali Khan University Mardan

Sarguja University

Chinese Academy of Sciences

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Quality comparison of biodiesel produced from waste cooking oil of restaurant and domestic kitchen

International Journal of Green Energy (2019)

Salma Khan Mahnoor Raza Asia Nosheen Rabia Naz Syed Muhammad Usman Shah

Concerns on environmental change, high-energy costs, and diminishing oil reserves have compelled a robust interest for the exploration of alternative energy sources. Current study was aimed to prepare biodiesel from waste cooking oil collected from restaurant and domestic kitchen, and to compare their fuel properties. To obtain high yield of biodiesel, some important variables such as methanol to oil ratio, catalyst concentration, and reaction temperature were varied. Results showed that highest yield of biodiesel was obtained at 1.5% catalyst concentration by restaurant oil at 6:1 methanol/oil at 65°C. Acid value, free fatty acid content, specific gravity, and kinematic viscosity were in accordance to ASTM standards. Cloud and pour point for both the oils was less than 14°C. Flash point and cetane index of restaurant biodiesel samples were according to the standards proposed by ASTM. Restaurant waste oil biodiesel showed better fuel properties as compared to domestic waste oil and can be suggested as an effective environmental-friendly source for biodiesel production.

Flash point

Cetane number

Waste oil

Heat of combustion

10.1080/15435075.2019.1700123

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Citations (7)

Evaluation of Aerobic and Anaerobic Co-Digestion of <i>Tetraselmis suecica </i>and Oil Palm Empty Fruit Bunches by Response Surface Methodology

Advanced materials research (2014)

Anees Ahmad Syed Muhammad Usman Shah Azizul Buang Mohd Fariduddin Othman Mohd Azmuddin Abdullah

This study investigated co-cultivation of Tetraselmis suecica microalgae with Oil Palm empty fruit bunch (OPEFB) for anaerobic biomethane production and Palm oil mill effluent (POME) treatment. The highest specific biogas production (0.1162 m 3 kg -1 COD day -1 ) and biomethane yield (3900.8 mL CH 4 L -1 POME day -1 ) was achieved with microalgae at 2 mL mL -1 POME, and OPEFB at 0.12 g mL -1 POME. Without co-digestion of microalgae, higher specific biogas production (0.1269 m 3 kg -1 COD day -1 ) but lower biomethane yield (3641.8 mL CH 4 L -1 POME day -1 ) were observed. Second order polynomial model fits the data well with less than 5% error. Higher removal efficiency (62-95%) of COD, BOD, TOC and TN were achieved by aerobic and anaerobic treatment of POME with microalgae than without microalgal treatment after 3 and 7 days of hydraulic retention time (HRT).

Pome

Biogas

Hydraulic retention time

Tetraselmis suecica

10.4028/www.scientific.net/amr.925.243

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Citations (20)

Environmental sustainability: Challenges and approaches

Elsevier eBooks (2022)

Faheem Ahmad Qamar Saeed Syed Muhammad Usman Shah Muhammad Asif Gondal Saqib Mumtaz

Industrialisation

Environmental Pollution

Scope (computer science)

10.1016/b978-0-12-822976-7.00019-3

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Citations (50)

Algal Pathways and Metabolic Engineering for Enhanced Production of Lipids, Carbohydrates, and Bioactive Compounds

Apple Academic Press eBooks (2020)

Mohd Azmuddin Abdullah Hann Ling Wong Syed Muhammad Usman Shah P. C. Loh

In 2008, USA produces 34 billion liters of fuel grade bioethanol from corn, while Brazil comes second at 27.5 billion liters of fuel grade bioethanol from sugarcane, and together, the account for 89% of global production. The algal productivity can be enhanced by efficient cultivation method and by genetic and metabolic engineering. Applying environmental stressors during algal cultivation is one of the effective strategies to enhance lipid for biodiesel. Algal biotechnology breakthroughs directly enable new approaches to generate algae with desirable properties for the production of biofuels and bioproducts. The strategies to introduce genes, to delete or disrupt genes, and to modify genes or gene expression in particular algal species could enhance physiological properties and optimize the production. Except for the starch in plastids, algal extracellular coverings, e.g., cell wall, are rich in carbohydrate, which can be converted to biofuel. However, the compositions of microalgal extracellular coverings vary according species.

Metabolic Engineering

10.1201/9781003019510-14

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Citations (1)

Bacteria Isolated from Wastewater Irrigated Agricultural Soils Adapt to Heavy Metal Toxicity While Maintaining Their Plant Growth Promoting Traits

Sustainability (2021)

Abdul Wahab Ajmal Saleha Saroosh Shah Mulk Muhammad Nadeem Hassan Humaira Yasmin

The present study explored the plant growth promotion and bioremediation potential of bacteria inhabiting wastewater irrigated agricultural soils. Thirty out of 75 bacterial isolates (40%), 29/75 (39%) and 28/75 (37%) solubilized Zn, K and PO4 during plate essays respectively. Fifty-six percent of the isolates produced siderophores, while 30% released protease in vitro. Seventy-four percent of bacteria resisted Pb, Ni and Cd at various concentrations added to the culture media plates. Sixteen out of 75 (26%) isolates were able to fix N in Nbf medium. Among these 16 N fixers, N fixing nifH, nifD and nifK genes was detected through PCR in 8, 7 and 1 strain respectively using gene specific primers designed in the study with Enterobacter sp. having all three (nifHKD) genes. Isolated bacteria showed resemblance to diverse genera such as Bacillus, Pseudomonas, Enterobacter, Citrobacter, Acinetobacter, Serratia, Klebsiella and Enterococcus based on 16S rRNA gene sequence analysis. In addition to showing the best mineral solubilization and metal resistance potential, Citrobacter sp. and Enterobacter sp. also removed 87%, 79% and 43% and 86%, 78% and 51% of Ni, Cd and Pb, respectively, from aqueous solution. These potent bacteria may be exploited both for bioremediation and biofertilization of wastewater irrigated soils leading to sustainable agriculture.

Citrobacter

Serratia

Phosphate solubilizing bacteria

Klebsiella oxytoca

Klebsiella

10.3390/su13147792

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Citations (33)

ANAEROBIC CO-CULTIVATION OF MULTI-ALGAL SPECIES WITH OIL PALM EMPTY FRUIT BUNCHES FOR MILL EFFLUENT TREATMENT AND BIOMETHANE PRODUCTION

Jurnal Teknologi (2016)

Anees Ahmad Syed Muhammad Usman Shah Azizul Buang Mohd Azmuddin Abdullah

This study investigated the optimization of anaerobic co-cultivation of multi-algal species with Oil Palm Empty Fruit Bunches (OPEFB) for Palm Oil Mill Effluent (POME) treatment and biomethane production. The highest removal of COD (95-98%), BOD (90-98%), TOC (81-86%) and TN (78-80%) were achieved after 7 days anaerobic treatment with the presence of microalgae. The highest biomethane (4,651.9 mL CH4/L POME/day) and the specific biogas production rate (0.124 m3/kg COD/day) with CO2 (2,265.9mL CO2/L POME/day) were achieved by co-cultivating N. oculata and Chlorella sp. (each at 1 mL/mL POME) with OPEFB (0.12 g/mL POME). The combination of N. oculata (2 mL/mL POME) with T. suecica or Chlorella sp. (each at 1 mL/mL POME), and OPEFB (0.12 g/mL POME) obtained high biomethane (4,018.9 mL CH4/L POME /day) but lower biogas (0.097 m3/kg COD/day) and CO2 (2,079.5mL CO2/L POME/day). Generally, low OPEFB and having all the three strains or increasing the level of any (2 mL/mL POME) especially T. suecica, could lower biomethane (870-953 mL CH4/L POME/day) and CO2 (803-854mL CO2/L POME/day), with the biogas around 0.08-0.09 m3/kg COD/day. The optimum conditions were predicted by Response Surface Methodology and the multiple coefficients of determination, r2, of 86% suggests good agreement between experimental and predicted values.

Pome

Biogas

Hydraulic retention time

10.11113/jt.v78.8640

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Citations (16)

Effects of macro/micronutrients on green and brown microalgal cell growth and fatty acids in photobioreactor and open-tank systems

Biocatalysis and Agricultural Biotechnology (2018)

Syed Muhammad Usman Shah Mohd Azmuddin Abdullah

Isochrysis galbana

Tetraselmis suecica

Palmitoleic acid

Nannochloropsis

Tetraselmis

Photobioreactor

10.1016/j.bcab.2018.01.011

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Citations (25)

Application of aquatic plants alone as well as in combination for phytoremediation of household and industrial wastewater

Journal of King Saud University - Science (2023)

Mahnoor Raza Asia Nosheen Humaira Yasmin Rabia Naz Syed Muhammad Usman Shah

Present study was undertaken to establish the potential of the local weeds of Pakistan (Islamabad, Rawalpindi) such as water lettuce (WL), alligator weed (AW), pennywort (PW), and duckweed (DW) as phytoremediation agents individually and in combinations (COMB) for the removal of pollutants from the wastewater. The results revealed that treatments of effluents with DW and PW resulted in 100% and 81% removal of lead (Pb) from industrial and the treatments AW resulted in 100% removal of Pb from household wastewater. Treatments PW and COMB of the industrial wastewater showed 81% removal of zinc (Zn), and treatment of household wastewater with AW resulted in 100% removal of Zn. Treatment with WL resulted in 88% and 77% of chloride removal from industrial and household wastewater, respectively. A 28% removal of ammonia was obtained with PW treatment of industrial wastewater, while AW treatment resulted in 100% ammonia removal and 85% removal efficiency for the phosphate. The COMB treatment resulted in 51% removal of sulfate from household wastewater, and WL resulted in 79% removal of potassium from industrial wastewater. In conclusion, all the weeds resulted in significant removal of contaminants from wastewater; however, alligator weed exhibited the best phytoremediation potential compared to other treatments.

Industrial wastewater treatment

10.1016/j.jksus.2023.102805

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Citations (10)

Bioremediation and decontamination potential of flagellate Poteriospumella sp.

Bioremediation Journal (2019)

Tahira Syed Uzma Batool Muhammad Aslam Zobia Noreen Ifra Farheen

Water pollution due to heavy metals and water borne pathogen is one of the significant public health issues for developing countries in particular where safe drinking water supply is depleting rapidly. Flagellates are aquatic microscopic organisms that have developed excellent survival strategies, which help them withstand environmental stresses and therefore can act as natural biocontrol in complex ecological systems. This study investigates the wastewater treatment and bioremediation potential of flagellate Poteriospumella sp. Poteriospumella sp. was isolated from northern areas of Pakistan and identified by using 18SrRNA analysis. Wastewater samples were collected from nullah (S1) and two industrial areas of Islamabad and Rawalpindi (S2 and S3) and physiochemical properties (Biological oxygen demand, dissolved oxygen, total nitrogen, ammonia, phosphate and sulfate) were analyzed initially and after treatment with Poteriospumella sp. alone and in combination with consortia of four already characterized bacterial strains i.e., Pseudomonas sp., Salmonella sp., Citrobacter sp., and Enterobacter sp. for 15 days. Furthermore, the bacterivores potential of flagellates was investigated against commonly found endemic waterborne pathogen i.e. Vibrio cholera as well as their ability to sequester or remove heavy metal, mercury (Hg), was also evaluated. The results clearly showed the excellent potential of flagellates in improving wastewater physiochemical properties of all the three wastewater samples i.e. the removal range of BOD (0–10.5%), DO (7.8–38.2%), TN (11.6–53.6%), ammonia (2.7–33.5%), phosphate (0–40%) and sulfate (5.1–12.5%) was recorded. In nutshell, Poteriospumella sp. showed excellent bioremediation potential against Hg (removal of 92–93% of mercuric ions within 2 weeks). In addition, it has significantly reduced the CFU's of unique subtypes of Vibrio cholerae types circulating in Pakistan and hence can be employed as natural predator to control cholera transmission through water.

Biochemical oxygen demand

Flagellate

10.1080/10889868.2019.1639611

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Citations (4)

Biomethane Production and Palm Oil Mill Effluent Treatment by Co-Cultivation of <i>Nannochloropsis oculata</i>

Applied Mechanics and Materials (2014)

Anees Ahmad Syed Muhammad Usman Shah Mohd Fariduddin Othman Mohd Azmuddin Abdullah

Co-cultivation of N annochloropsis oculata with Oil Palm Empty Fruit Bunches (OPEFB) was explored for biomethane production and POME treatment. The experimental results were analyzed and modeled using a multilevel factorial design (MFD) of response surface methodology (RSM). Maximum specific biogas production rate (0.126 m 3 kg -1 COD day -1 ) and biomethane production (4813.0 mL CH 4 L -1 POME day -1 ) were achieved with 2 mL mL -1 POME of microalgae and OPEFB 0.12 g mL -1 POME. POME treatment after 3 and 7 days with microalgae achieved higher removal efficiency (56-98%) of COD, BOD and TOC, than without microalgae.

Pome

Biogas

Biogas Production

10.4028/www.scientific.net/amm.625.818

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Citations (13)