01962ntm a2200313 i 4500003000800000005001700008006001800025007000300043008004100046020003300087040002700120100006200147245018600209264003600395264001200431300003200443336002100475337002500496338002300521347002400544500005900568502015000627504003800777520064300815610007401458650004501532650002601577856004501603MY-KuUP20260730111215.0t|||||r|||| 000 0ta260730t20252025my a|||fr|||| 000 0 eng d  aTHE0010898 (Local)qHardback  aUMPSAbengcUMPSAerda0 aMuhammad Danish Bin Ahmad Daud,		,		 						 	,	,eauthor.10aStudy on coffee ground waste as green corrosion inhibitor for mild steel in hcl solution via scanning electron microscopy (SEM) & polarization test /cMuhammad Danish Bin Ahmad Daud 1aKuantan, Pahang :bUMPSA,c2025 4c© 2025  a49 pages :billustrations ;  2rdacontentatext  2rdamediaaunmediated  2rdacarrieravolume  2rdaatext filebPDF  aFaculty of Chemical and Process Engineering Technology  aFinal Year Report (Bachelor of Technology Mechanical Engineering (Petroleum)  with Hons ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025  aInclude bibliographical reference3 aThis study investigates the use of ground coffee waste as an eco-friendly corrosion inhibitor for mild steel in hydrochloric acid (HCl) solution. Coffee waste concentrations ranging from 3000 to 9000 ppm were tested in 0.5 M HCl. Results from polarization and SEM analyses indicated that coffee waste effectively reduced corrosion by forming protective layers. The corrosion rate decreased with increasing coffee waste concentration, with inhibition efficiency rising from 75% at 3000 ppm to 92% at 9000 ppm. These results demonstrate the potential of ground coffee waste as an effective, eco-friendly alternative for corrosion prevention20aFaculty of Chemical and Process Engineering TechnologyxDissertations 0aUniversities and collegesxDissertations 0aThesesxDissertations  uhttps://umpir.ump.edu.my/id/eprint/47869