Qaisar Mahmood

13.1k total citations · 2 hit papers
293 papers, 9.9k citations indexed

About

Qaisar Mahmood is a scholar working on Pollution, Water Science and Technology and Industrial and Manufacturing Engineering. According to data from OpenAlex, Qaisar Mahmood has authored 293 papers receiving a total of 9.9k indexed citations (citations by other indexed papers that have themselves been cited), including 145 papers in Pollution, 78 papers in Water Science and Technology and 59 papers in Industrial and Manufacturing Engineering. Recurrent topics in Qaisar Mahmood's work include Wastewater Treatment and Nitrogen Removal (80 papers), Heavy metals in environment (49 papers) and Plant Stress Responses and Tolerance (32 papers). Qaisar Mahmood is often cited by papers focused on Wastewater Treatment and Nitrogen Removal (80 papers), Heavy metals in environment (49 papers) and Plant Stress Responses and Tolerance (32 papers). Qaisar Mahmood collaborates with scholars based in Pakistan, China and Bahrain. Qaisar Mahmood's co-authors include Ping Zheng, Arshid Pervez, Chong‐Jian Tang, Xiaoe Yang, Jianwei Chen, Ejazul Islam, Jing Cai, Caihua Wang, Xiaofen Jin and Jiqiang Zhang and has published in prestigious journals such as SHILAP Revista de lepidopterología, Renewable and Sustainable Energy Reviews and The Science of The Total Environment.

In The Last Decade

Qaisar Mahmood

288 papers receiving 9.6k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Performance of high-loaded ANAMMOX UASB reactors containing granular sludge

2010 553 citations Chong‐Jian Tang, Ping Zheng et al. Water Research profile →
Waste biomass adsorbents for copper removal from industrial wastewater—A review

2013 444 citations Arshid Pervez, Qaisar Mahmood et al. Journal of Hazardous Materials profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Qaisar Mahmood Pakistan	56	4.7k	2.8k	1.9k	1.6k	1.6k	293	9.9k
Manish Kumar India	57	3.6k 0.8×	1.8k 0.7×	2.3k 1.2×	1.5k 0.9×	766 0.5×	158	10.6k
Siti Rozaimah Sheikh Abdullah Malaysia	52	3.5k 0.7×	2.5k 0.9×	2.9k 1.5×	1.3k 0.8×	1.0k 0.6×	384	10.0k
Beidou Xi China	63	6.7k 1.4×	2.3k 0.8×	3.5k 1.8×	2.4k 1.5×	721 0.4×	345	13.5k
Fang Ma China	62	4.7k 1.0×	4.9k 1.8×	1.9k 1.0×	1.8k 1.1×	1.5k 0.9×	487	15.1k
Baoshan Xing China	55	6.0k 1.3×	1.4k 0.5×	2.1k 1.1×	2.3k 1.4×	1.3k 0.8×	206	11.1k
Maria A.M. Reis Portugal	71	9.0k 1.9×	2.2k 0.8×	2.5k 1.3×	1.7k 1.0×	1.3k 0.8×	351	18.0k
Yingxu Chen China	58	4.0k 0.8×	2.2k 0.8×	2.2k 1.1×	1.8k 1.1×	2.0k 1.3×	287	13.0k
Chong‐Jian Tang China	50	3.5k 0.7×	2.8k 1.0×	1.3k 0.6×	1.6k 1.0×	452 0.3×	128	8.4k
Eldon R. Rene Netherlands	60	3.6k 0.8×	2.3k 0.8×	2.5k 1.3×	1.7k 1.0×	873 0.5×	395	13.2k
Xianghua Wen China	50	3.5k 0.7×	2.9k 1.1×	1.1k 0.5×	1.2k 0.7×	618 0.4×	174	7.1k

Countries citing papers authored by Qaisar Mahmood

Since Specialization

Citations

This map shows the geographic impact of Qaisar Mahmood's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Qaisar Mahmood with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Qaisar Mahmood more than expected).

Fields of papers citing papers by Qaisar Mahmood

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Qaisar Mahmood. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Qaisar Mahmood. The network helps show where Qaisar Mahmood may publish in the future.

Co-authorship network of co-authors of Qaisar Mahmood

This figure shows the co-authorship network connecting the top 25 collaborators of Qaisar Mahmood. A scholar is included among the top collaborators of Qaisar Mahmood based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Qaisar Mahmood. Qaisar Mahmood is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Zhu, Xiaopeng, et al.. (2025). Deciphering the interactions and metabolic pathways in a two-stage Anammox-SAD coupled system for efficient profound nitrogen removal. Journal of Water Process Engineering. 70. 107046–107046. 3 indexed citations

Wang, Ru, et al.. (2025). Phosphate recovery from digested wastewater using electrochemical reactors: Trade-off between efficiency and stability. Desalination. 604. 118697–118697. 1 indexed citations

Mahmood, Qaisar, et al.. (2024). Increasing methane production in an anaerobic membrane bioreactor for treating landfill leachate: Impact of organic concentration and HRT. Journal of Environmental Management. 367. 122061–122061. 3 indexed citations

Liang, Na, et al.. (2024). Phosphorus removal performance of Sulfide-Based autotrophic denitrification process. Chemical Engineering Journal. 501. 157217–157217. 3 indexed citations

Liu, Zhigong, Tianyu Gao, Qaisar Mahmood, et al.. (2024). Enhanced internal circulation for struvite crystallization in a novel air-lift circulation reactor with Venturi structure for ammonium recovery from wastewater. Journal of Water Process Engineering. 58. 104742–104742. 2 indexed citations

Wang, Yunyan, et al.. (2023). Characterization of the microplastic photoaging under the action of typical salt ions of biological nitrogen removal processes. The Science of The Total Environment. 912. 169596–169596. 7 indexed citations

Cai, Jing, et al.. (2023). Deciphering the roles of suspended sludge and fixed sludge at electrode in microbial fuel cell accomplishing sulfide-based autotrophic denitrification. Biochemical Engineering Journal. 193. 108874–108874. 5 indexed citations

Rehman, Faiza, Ahmed Usman, Allah Ditta, et al.. (2023). Optimal root oxygen release from two macrophytes Saururus cernuus L. and Pistia stratiotes L. varies with light and temperature in simulated constructed wetlands microcosms. Rhizosphere. 26. 100697–100697. 3 indexed citations

Hayat, Malik Tahir, et al.. (2023). Anaerobic Biological Treatment of Wastewater from Paper Recycling Industry by UASB Reactor. Sains Malaysiana. 52(4). 1087–1099. 1 indexed citations

10.

Wang, Yunyan, Xi Tang, Lushan Li, et al.. (2020). Quantitative determination of cavitation formation and sludge flotation in Anammox granules by using a new diffusion-reaction integrated mathematical model. Water Research. 174. 115632–115632. 90 indexed citations

11.

Mehmood, Kashif, Kashif Ur Rehman, Jin Wang, et al.. (2019). Treatment of Pulp and Paper Industrial Effluent Using Physicochemical Process for Recycling. Water. 11(11). 2393–2393. 55 indexed citations

12.

Mahmood, Qaisar, et al.. (2016). Improvement in lipids extraction processes for biodiesel production from wet microalgal pellets grown on diammonium phosphate and sodium bicarbonate combinations. Bioresource Technology. 214. 199–209. 14 indexed citations

13.

Hussain, Zahid, et al.. (2015). Interaction of Phosphorus and Potassium on Maize (Zea mays L.) in Saline-Sodic Soil. Journal of Agricultural Science. 7(3). 13 indexed citations

14.

Waseem, Amir, Ather Farooq Khan, Qaisar Mahmood, et al.. (2013). Arsenic bioremediation by low cost materials derived from Blue Pine (Pinus wallichiana) and Walnut (Juglans regia). Ecological Engineering. 51. 88–94. 60 indexed citations

15.

Farooq, Robina, et al.. (2013). Treatment of Tanneries Waste Water by Ultrasound Assisted Electrolysis Process. Journal of the chemical society of pakistan. 35(3). 599. 2 indexed citations

16.

Mahmood, Qaisar, et al.. (2013). Assessment of heavy metals in wheat plants irrigated with contaminated wastewater. Polish Journal of Environmental Studies. 22(1). 65 indexed citations

17.

Mirza, Nosheen, Arshid Pervez, Qaisar Mahmood, & Shiek S. S. J. Ahmed. (2010). Phytoremediation of arsenic (As) and mercury (Hg) contaminated soil.. World Applied Sciences Journal. 8(1). 113–118. 16 indexed citations

18.

Nasreen, Sadia, et al.. (2009). Surface and ground water quality risk assessment in district Attock Pakistan.. World Applied Sciences Journal. 7(8). 1029–1036. 9 indexed citations

19.

Pervez, Arshid, et al.. (2009). Assessing bioaccumulation of heavy metals in sporocarp of Pleurotus ostreatus.. World Applied Sciences Journal. 7(12). 1498–1503. 5 indexed citations

20.

Jin, Ren‐Cun, Ping Zheng, Qaisar Mahmood, & Baolan Hu. (2006). Osmotic stress on nitrification in an airlift bioreactor. Journal of Hazardous Materials. 146(1-2). 148–154. 50 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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