mohammad mohammad alnawajha, setyo budi kurniawan, siti rozaimah sheikh abdullah, ahmad razi othman, hajjar hartini wan jusoh, azimah ismail, hassimi abu hasan.  (2025).  water vs. salt extraction of bio-coagulant from leucaena leucocephala pods for removing turbidity from aquaculture effluent.  - journal of the indian chemical society.  1 - 7. 

hassimi abu hasan, nur asyiqin azahar, mohd hafizuddin muhamad.  (2025).  insights into aeration intensification in biofilm reactors for efficient wastewater treatment.  - water (switzerland).  1 - 22. 

saja radhi nayyef alanbary, siti rozaimah sheikh abdullah, israa abdulwahab al-baldawi, hassimi abu hasan, nurina anuar, ahmad razi othman, fatihah suja’, nur ‘izzati ismail, siti shilatul najwa sharuddin.  (2025).  assessing phytotoxicity of sand contaminated with petroleum hydrocarbons on phragmites karka.  - international journal of environmental science and technology.  6545 - 6556. 

n. marsidi, s. r. s. abdullah, h. a. hasan, a. r. othman, j. ahmad, n. i. ismail.  (2025).  tolerance and survival of native plants exposed to petroleum hydrocarbon-containing sludge: first step in phytoremediation.  - international journal of environmental science and technology.  7701 - 7708. 

hassimi abu hasan, siti nur diana mohd saharuddin, mohd hafizuddin muhamad.  (2025).  unlocking the potential of polyvinyl alcohol (pva) as a biocarrier for enhanced wastewater treatment: a comprehensive review.  - journal of water process engineering.  1 - 16. 

c. e. n. c. e. chik, s. b. kurniawan, z. n. a. shukri, i. b. terkula, f. wahab, a. endut, f. lananan, h. a. hasan, s. r. s. abdullah & n. a. kasan.  (2024).  chitosan coagulant: coagulation/flocculation studies on turbidity removal from aquaculture wastewater by response surface methodology.  - international journal of environmental science and technology.  805-816. 

hasanain saad alhares, qahtan adnan ali, mohammed ali a. shaban, mohanad j. m-ridha, hawraa r. bohan, sabah j. mohammed, khalid m. abed, hassimi abu hasan.  (2023).  rice husk coated with copper oxide nanoparticles for 17(alpha)-ethinylestradiol removal from an aqueous solution: adsorption mechanisms and kinetics.  - environmental monitoring and assessment.  1-20. 

mohammad mohammad alnawajha, setyo budi kurniawan, siti rozaimah sheikh abdullah, hassimi abu hasan, ahmad razi othman.  (2023).  performance of leucaena leucocephala and alum in treating aquaculture: effect of dosage, rapid speed and settling time.  - international journal of environmental science and technology.  9981-9994. 

hasanain saad alhares, mohammed ali a. shaban, mohammed sadeq salman, mohanad j. m-ridha, sabah j. mohammed, khalid m. abed, mohammed a. ibrahim, ali k. al-banaa & hassimi abu hasan.  (2023).  sunflower husks coated with copper oxide nanoparticles for reactive blue 49 and reactive red 195 removals: adsorption mechanisms, thermodynamic, kinetic, and isotherm studies.  - water air and soil pollution.  1-20. 

setyo budi kurniawan, azmi ahmad, muhammad fauzul imron, siti rozaimah sheikh abdullah, ahmad razi othman, hassimi abu hasan.  (2023).  performance of chemical-based vs bio-based coagulants in treating aquaculture wastewater and cost-benefit analysis.  - polish journal of environmental studies.  1177-1187. 

n. marsidi, s. r. s. abdullah, h. a. hasan, a. r. othman, j. ahmad, n. i. ismail.  (2025).  tolerance and survival of native plants exposed to petroleum hydrocarbon-containing sludge: first step in phytoremediation.  - international journal of environmental science and technology.  7701 - 7708. 

nurull muna daud, siti rozaimah sheikh abdullah, siti shilatul najwa sharuddin, ahmad razi othman, hassimi abu hasan, noorashikin md salleh, nur ’izzati ismail.  (2025).  bioaugmentation of klebsiella pneumoniae isolate m1 in a continuous sequential phytoreactor integrating scirpus grossus and eichhornia crassipes plants for batik effluent treatment.  - journal of water process engineering.  1 - 18. 

fairuz afiqah buslima, hassimi abu hasan, jahira alias, jaga sahsiny jaganathan, junaidah buhari, suriya vathi subramanian and siti rozaimah sheikh abdullah.  (2025).  performance of integrated biofilm-phytoremediation process in reclaiming water from domestic wastewater .  - water.  1 - 14. 

setyo budi kurniawan, azmi ahmad, muhammad fauzul imron, siti rozaimah sheikh abdullah, ahmad razi othman and hassimi abu hasan.  (2025).  achieving a biocircular economy in the aquaculture sector through waste valorization.  - toxics.  1 - 30. 

osama abrahiem al falahi, siti rozaimah sheikh abdullah, hassimi abu hasan, ahmad razi othman, hind mufeed ewadh, nur 'izzati ismail, muhammad fauzul imron, setyo budi kurniawan.  (2025).  identification and degradation of ibuprofen and paracetamol by rhizobacteria from roots of scirpus grossus exposed to synthetic mix in constructed wetlands.  - water.  1 - 19. 

aimi dayana jairen, azmi aris, shreeshivadasan a/l chelliapan, hassimi abu hasan, maria nuid.  (2024).  hydrodynamic shear force effect in aerobic granules formation and performance in treating domestic wastewater: a review.  - aip conference proceedings.  1 - 8. 

siti shilatul najwa sharuddin, siti rozaimah sheikh abdullah, hassimi abu hasan, ahmad razi othman, & israa abdulwahab al-baldawi.  (2024).  enhanced removal of hydrocarbons from crude oil sludge through phytoremediation with biosurfactant-producing rhizobacteria.  - iop conf. series: earth and environmental science.  1-9. 

badiea s. babaqi, mohd s. takriff, nur tantiyani a.othman, hassimi abu hasan, ebrahim mahmoudi.  (2021).  modeling and simulation for integrating four reactors in the continuous catalytic regeneration reforming process using matlab.  - 1st international conference on engineering and technology (icoengtech).  1-14. 

z m hanafiah , w h m wan mohtar, h a hasan , h s jensen , m z abdullah and h husain.  (2019).  diversification of temporal sewage loading concentration in tropical climates.  - iop conf. series: earth and environmental science.  1-11. 

hassimi abu hasan, hema darshinni vijayakumar, jahira alias, nur ‘izzati ismail and setyo budi kurniawan.  (2025).  treatment and recovery of biosolids from sewage wastewater using bioflocculants bacillus velezensis isolate jb7.  - .  1 - 14. 

hassimi abu hasan, siti nur hatika abu bakar and mohd sobri takriff.  (2021).  microalgae biofilms for the treatment of wastewater.  - .  381-407. 

abudukeremu kadier, rustiana yuliasni, s. m. sapuan, r. a. ilyas, pankaj kumar rai, peng cheng ma, aruliah rajasekar, khulood fahad saud alabbosh, aidil abdul hamid, hassimi abu hasan.  (2020).  the role of microbial electrolysis cell in bioenergy production: current applications and pilot plant experiences.  - .  323-342. 

abudukeremu kadier, amit kumar chaurasia, s. m. sapuan, r. a. ilyas, peng cheng ma, khulood fahad saud alabbosh, pankaj kumar rai, washington logroño, aidil abdul hamid, hassimi abu hasan.  (2020).  essential factors for performance improvement and the implementation of microbial electrolysis cells (mecs).  - .  139-168. 

abudukeremu kadier, najeeb k. n. al-shorgani, dipak a. jadhav, jayesh m. sonawane, abhilasha s. mathuriya, mohd s. kalil, hassimi a. hasan, khulood fahad saud alabbosh.  (2020).  microbial electrolysis cell (mec): an innovative waste to bioenergy and value-added by-product technology.  - .  95-128. 

moh hafizuddin muhamad, hassimi abu hasan, siti nur hatika abu bakar.  (2025).  potensi struvit dalam menuju ekonomi kitaran mampan.  - dewan kosmik dpb.  . 

hassimi abu hasan.  (2025).  kejuruteraan: kerjaya pilihan yang bijak.  - selamat pagi malaysia: nadi seri pagi.  . 

hassimi abu hasan, s. sayanthan.  (2024).  tumbuhan makrofit: cabaran sebagai agen biorawatan air sisa.  - majalah sains.  1. 

jahira alias, hassimi abu hasan, siti rozaimah sheikh abdullah.  (2024).  bioflokulan: penggumpal semula jadi rawatan air dan air sisa.  - .  . 

nor sakinah mohd said siti rozaimah sheikh abdullah hassimi abu hasan.  (2024).  efluen kopi: rawatan & potensi ekonomi.  - .  . 

moh hafizuddin muhamad, hassimi abu hasan, siti nur hatika abu bakar.  (2025).  potensi struvit dalam menuju ekonomi kitaran mampan.  - dewan kosmik dpb.  . 

hassimi abu hasan.  (2025).  kejuruteraan: kerjaya pilihan yang bijak.  - selamat pagi malaysia: nadi seri pagi.  . 

islam j k elhabil, siti rozaimah sheikh abdullah, hassimi abu hasan, ahmad razi othman, nur izzati ismail.  (2024).  potential of phytoremediation in alleviating microplastic pollution in wastewater.  - 2024 13th international conference on chemistry and chemical process.  xx. 

nadzirul zamri, wei lun aang, nazlina haiza, noor soffalina sofian seng, lim seng joe, hassimi abu hasan, mohamed yusuf mohamed nazir, aidil abdul hamid.  (2024).  evaluation of chitosan and matel ions as efficient and cost-effective flocculant for harvesting lipid-rich aurantiochytrium sp. sw1 cells.  - glabal algae summit (gas) 2024.  . 

fadzila hanim kasim, wan syaidatul aqma, fareed sairi, hassimi abu hasan, peer mohamed, mohamed yusuf mohamed nazir, aidil abdul hamid.  (2024).  efficient co-production of docosahexaenoic acid (dha) and squalene using pineapple liquid waste by aurantiochytrium sp. sw1.  - glabal algae summit (gas) 2024.  .