PMID- 30058954
OWN - NLM
STAT- MEDLINE
DCOM- 20190909
LR  - 20190909
IS  - 1096-3669 (Electronic)
VI  - 36
IP  - 10
DP  - 2018 Oct
TI  - Removal of bisphenol A and 2,4-Di-tert-butylphenol from landfill leachate using 
      plant- based coagulant.
PG  - 975-984
LID - 10.1177/0734242X18790360 [doi]
AB  - Landfill leachate contain persistent organic pollutants (POPs), namely, bisphenol 
      A (BPA) and 2,4-Di-tert-butylphenol, which exceed the permissible limits. Thus, 
      such landfill leachate must be treated before it is released into natural water 
      courses. This article reports on investigations about the removal efficiency of 
      POPs such as BPA and 2,4-Di-tert-butylphenol from leachate using locust bean gum 
      (LBG) in comparison with alum. The vital experimental variables (pH, coagulant 
      dosage and stirring speed) were optimised by applying response surface 
      methodology equipped with the Box-Behnken design to reduce the POPs from 
      leachate. An empirical quadratic polynomial model could accurately model the 
      surface response with R(2) values of 0.928 and 0.954 to reduce BPA and 
      2,4-Di-tert-butylphenol, respectively. Fourier transform infrared (FTIR) 
      spectroscopy and scanning electron microscopy (SEM) were performed on treated 
      flocs for further understanding. FTIR analysis revealed that the bridging of 
      pollutant particles could be due to the explicit adsorption and bridging via 
      hydrogen bonding of a coagulation mechanism. SEM micrographs indicated that the 
      flocs produced by LBG have a rough cloudy surface and numerous micro-pores 
      compared with alum, which enabled the capture and removal of POPs from leachate. 
      Results showed that the reduction efficiencies for BPA and 
      2,4-Di-tert-butylphenol at pH 7.5 were 76% and 84% at LBG dosage of 500 mg.L(-1) 
      and 400 mg.L(-1), respectively. Coagulant dosage and pH variation have a 
      significant effect on POPs reduction in leachate. Coagulation/flocculation using 
      LBG could be applied for POPs reduction in leachate as a pre-treatment prior to 
      advanced treatments.
FAU - Aziz, A
AU  - Aziz A
AD  - 1 Faculty of Marine Sciences, Lasbela University of Agriculture, Water and Marine 
      Sciences, Uthal, Balochistan, Pakistan.
AD  - 2 Institute of Biological Sciences, Faculty of Science, University of Malaya, 
      50603 Kuala Lumpur, Malaysia.
AD  - 3 Center for Research in Waste Management, Faculty of Science, University of 
      Malaya, 50603 Kuala Lumpur, Malaysia.
FAU - Agamuthu, P
AU  - Agamuthu P
AD  - 2 Institute of Biological Sciences, Faculty of Science, University of Malaya, 
      50603 Kuala Lumpur, Malaysia.
AD  - 3 Center for Research in Waste Management, Faculty of Science, University of 
      Malaya, 50603 Kuala Lumpur, Malaysia.
FAU - Fauziah, S H
AU  - Fauziah SH
AD  - 2 Institute of Biological Sciences, Faculty of Science, University of Malaya, 
      50603 Kuala Lumpur, Malaysia.
AD  - 3 Center for Research in Waste Management, Faculty of Science, University of 
      Malaya, 50603 Kuala Lumpur, Malaysia.
LA  - eng
PT  - Journal Article
DEP - 20180730
PL  - England
TA  - Waste Manag Res
JT  - Waste management & research : the journal of the International Solid Wastes and 
      Public Cleansing Association, ISWA
JID - 9881064
RN  - 0 (Benzhydryl Compounds)
RN  - 0 (Phenols)
RN  - 0 (Water Pollutants, Chemical)
RN  - FOB94G6HZT (2,4-di-tert-butylphenol)
RN  - MLT3645I99 (bisphenol A)
SB  - IM
MH  - Benzhydryl Compounds
MH  - Flocculation
MH  - Phenols
MH  - *Water Pollutants, Chemical
OTO - NOTNLM
OT  - 2,4-Di-tert-butylphenol
OT  - Bisphenol A
OT  - coagulation/flocculation
OT  - flocs
OT  - locust bean gum
EDAT- 2018/07/31 06:00
MHDA- 2019/09/10 06:00
CRDT- 2018/07/31 06:00
PHST- 2018/07/31 06:00 [pubmed]
PHST- 2019/09/10 06:00 [medline]
PHST- 2018/07/31 06:00 [entrez]
AID - 10.1177/0734242X18790360 [doi]
PST - ppublish
SO  - Waste Manag Res. 2018 Oct;36(10):975-984. doi: 10.1177/0734242X18790360. Epub 
      2018 Jul 30.