title: Hybrid soliwave technique for mitigating sulfate-reducing bacteria in controlling biocorrosion: a case study on crude oil sample.
abstract: Microbiologically influenced corrosion (MIC) is among the common corrosion types for buried and deep-water pipelines that result in costly repair and pipeline failure. Sulfate-reducing bacteria (SRB) are commonly known as the culprit of MIC. The aim of this work is to investigate the performance of combination of ultrasound (US) irradiation and ultraviolet (UV) radiation (known as Hybrid soliwave technique, HyST) at pilot scale to inactivate SRB. The influence of different reaction times with respect to US irradiation and UV radiation and synergistic effect toward SRB consortium was tested and discussed. In this research, the effect of HyST treatment toward SRB extermination and corrosion studies of carbon steel coupon upon SRB activity before and after the treatment were performed using weight loss method. The carbon steel coupons immersed in SRB sample were exposed to HyST treatment at different time of exposure. Additionally, Field Emission Scanning Electron Microscopy coupled with Energy Dispersive X-ray Spectroscopy were used to investigate the corrosion morphology in verifying the end product of SRB activity and corrosion formation after treatment. Results have shown that the US irradiation treatment gives a synergistic effect when combined with UV radiation in mitigating the SRB consortium.
authors.affiliation: a Department of Structure and Material, Faculty of Civil Engineering , Universiti Teknologi Malaysia , Skudai , Malaysia.
authors.forename: Muhammad Khairool Fahmy Bin
authors.initials: MKFB
authors.lastname: Mohd Ali
authors.affiliation: a Department of Structure and Material, Faculty of Civil Engineering , Universiti Teknologi Malaysia , Skudai , Malaysia.
authors.forename: Akrima
authors.initials: A
authors.lastname: Abu Bakar
authors.affiliation: a Department of Structure and Material, Faculty of Civil Engineering , Universiti Teknologi Malaysia , Skudai , Malaysia.
authors.forename: Norhazilan
authors.initials: N
authors.lastname: Md Noor
authors.affiliation: a Department of Structure and Material, Faculty of Civil Engineering , Universiti Teknologi Malaysia , Skudai , Malaysia.
authors.forename: Nordin
authors.initials: N
authors.lastname: Yahaya
authors.affiliation: a Department of Structure and Material, Faculty of Civil Engineering , Universiti Teknologi Malaysia , Skudai , Malaysia.
authors.forename: Mardhiah
authors.initials: M
authors.lastname: Ismail
authors.affiliation: a Department of Structure and Material, Faculty of Civil Engineering , Universiti Teknologi Malaysia , Skudai , Malaysia.
authors.forename: Ahmad Safuan
authors.initials: AS
authors.lastname: Rashid
mesh_terms: D001419:Bacteria; D018441:Biofilms; D003343:Corrosion; D010578:Petroleum; D013431:Sulfates; D016999:Sulfur-Reducing Bacteria
chemical_list: D010578:Petroleum; D013431:Sulfates
keywords: Sulfate-reducing bacteria; hybrid soliwave technique; microbiologically influenced corrosion; ultrasound; ultraviolet