Municipal solid waste (MSW) produced in Malaysia increased from year to year due to urbanisation. As a result, landfills received a large amount of MSW beyond their capacity, which led landfills to produce leachate that contains various substances. This study used the aerated chemical coagulation (ACC) technique as a leachate treatment to cope with leachate management. This method removes Ammoniacal Nitrogen and colour from stabilised leachate under the influence of polyaluminium chloride (PAC) dosage, leachate pH and aeration rate. Sample of leachate has been analysed to get the characteristics of leachate. This study determined the influence of aeration rate, PAC dosage, and pH on ACC. Based on the result, the optimum value for ACC under the influence of PAC dosage, pH and aeration rate was 400 mg/L, pH 5 and 1.0 L/min, respectively. ACC has shown the best removal of Ammoniacal Nitrogen and colour with 53% and 71%, respectively. In conclusion, ACC has the potential to treat old leachate based on the removal parameters, which were Ammoniacal Nitrogen and colour removal.

1.
Tang
,
S.
,
Chen
,
J.
,
Sun
,
P.
,
Li
,
Y.
,
Yu
,
P.
, &
Chen
,
E.
,
Current and future hydropower development in Southeast Asia countries (Malaysia, Indonesia, Thailand, and Myanmar)
,
Energy Policy
129
(September 2018), pp.
239
249
(
2019
).
2.
Hong
,
J.
,
Chen
,
Y.
,
Wang
,
M.
,
Ye
,
L.
,
Qi
,
C.
,
Yuan
,
H.
,
Zheng
,
T.
, &
Li
,
X.
,
Intensification of municipal solid waste disposal in China
,
Sustainable Energy Reviews
69
(November 2016), pp.
168
176
(
2017
).
3.
Salem
,
Z.
,
Hamouri
,
K.
,
Djemaa
,
R.
, &
Allia
,
K.
,
Evaluation of landfill leachate pollution and treatment
.
Desalination
220
(
1–3
), pp.
108
114
(
2008
).
4.
Shadi
,
A. M. H.
,
Kamaruddin
,
M. A.
,
Niza
,
N. M.
,
Emmanuela
,
M. I.
,
Shaah
,
M. A.
,
Yusoff
,
M. S.
, &
Allafi
,
F. A.
,
Characterisation of stabilised leachate and evaluation of LPI from sanitary landfill in Penang, Malaysia
,
Desalination and Water Treatment
189
(January), pp.
152
164
(
2020
).
5.
Haslina
,
H.
,
NorRuwaida
,
J.
,
Dewika
,
M.
,
Rashid
,
M.
,
Md Ali
,
A. H.
,
Khairunnisa
,
M. P.
, &
Afiq Daniel
Azmi
, M.,
Landfill leachate treatment methods and its potential for ammonia removal and recovery - a review
,
IOP Conference Series: Materials Science and Engineering
1051
(
1
), pp.
012064
(
2021
).
6.
Mohd-Salleh
,
S. N. A.
,
Shaylinda
,
M. Z. N.
,
Norzila
Othman
, N.,
Yashni
G.
&
Norshila
,
A. B.
,
Treat-ability of Manihot esculenta peel extract as coagulant aid for stabilised leachate
,
Pertanika Journal of Science & Technology
29
(
3
). (
2021
).
7.
Dehghani
,
M. H.
,
Karimi
,
B.
, &
Rajaei
,
M. S.
,
The effect of aeration on advanced coagulation, flotation, and advanced oxidation processes for colour removal from wastewater
,
Journal of Molecular Liquids
223
, pp.
75
80
(
2016
).
8.
Zakaria
,
S. N. F.
, &
Aziz
,
H. A.
,
Characteristic of leachate at Alor Pongsu Landfill Site, Perak, Malaysia: A comparative study
,
IOP Conference Series: Earth and Environmental Science
140
(
1
), (
2018
).
9.
Mohamad
Zailani
, L. W., &
Zin
,
N. S. M.
,
Characterisation of Leachate at Simpang Renggam Landfill Site, Johor Malaysia
,
Journal of Physics: Conference Series
1049
(
1
), (
2018
).
10.
B.
B.
,
Effect of age and seasonal variations on leachate characteristics of municipal solid waste landfill
.
International Journal of Research in Engineering and Technology
02
(
08
), pp.
223
232
(
2013
).
11.
Yusoff
,
M. S.
, &
Mohamad
Zuki
, N. A.,
Optimum of treatment condition for artocarpus heterophyllus seeds starch as natural coagulant aid in landfill leachate treatment by RSM
.
Applied Mechanics and Materials
802
, pp.
484
489
(
2015
).
12.
Mohd-Salleh
,
S. N. A.
,
Shaylinda
,
M. Z. N.
,
Othman
,
N.
,
Azizan
,
M. O.
,
Yashni
,
G.
, &
Afnizan
,
W. M. W.
,
Sustainability analysis on landfilling and evaluation of characteristics in landfill leachate: a case study
, In
IOP Conference Series: Materials Science and Engineering
736
(
7
), pp.
072002
(
2020
).
13.
Luo
,
X.
,
Yan
,
Q.
,
Wang
,
C.
,
Luo
,
C.
,
Zhou
,
N.
, &
Jian
,
C.
,
Treatment of ammonia nitrogen wastewater in low concentration by two-stage ozonisation
.
International Journal of Environmental Research and Public Health
12
(
9
), pp.
11975
11987
(
2015
).
14.
Liang
,
C. Z.
,
Sun
,
S. P.
,
Li
,
F. Y.
,
Ong
,
Y. K.
, &
Chung
,
T. S.
,
Treatment of highly concentrated wastewater containing multiple synthetic dyes by a combined process of coagulation/flocculation and nanofiltration
,
Journal of Membrane Science
469
, pp.
306
315
(
2014
).
15.
Azizan
,
M. O.
,
Shaylinda
,
M. Z.
,
Mohd-Salleh
,
S. N. A.
&
Amdan
,
N. S.
,
Yashni
,
G.
,
Fitryaliah
,
M. S.
&
Afnizan
,
W. M. W.
,
Treatment of leachate by a coagulation-flocculation process using poly aluminium chloride (PAC) and tapioca starch (TS)
.
IOP Conference Series: Materials Science and Engineering
736
, pp.
0220
(
2020
).
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