Name: PowerPoint Presentation
Uploaded: 2021-11-11
Duration: 9 min 49 s
Description: Graphical user interface, text, application Description automatically generated.

Audio Recording 11 Nov 2021 at 2:00:46 PM. Graphical user interface, text, application Description automatically generated. 

Scene 1

Graphical user interface, text, application

Description automatically generated

Audio Recording 11 Nov 2021 at 2:00:46 PM

Audio Recording 11 Nov 2021 at 2:09:51 PM. INTRODUCTION. 

Scene 2

Water quality parameter: Dissolved Oxygen (DO) Biochemical Oxygen Demand (BOD) Chemical Oxygen Demand (COD) Total Suspended Solids (TSS) Ammoniacal Nitrogen (AN) pH

A robust approach to forecast and assess the water quality state in the mainstream of the Langat River

Vulnerable to contamination from the point and non-point sources as the Selangor states grow rapidly

to  analyze  the Langat River basin's extensive water quality index using an extensive water quality parameters, classification analysis, and simulate the pollution discharge scenario of a new proposed sewage treatment plant using QUAL2k software.

Audio Recording 11 Nov 2021 at 2:09:51 PM

Audio Recording 11 Nov 2021 at 2:31:20 PM. METHODOLOGY. 

Scene 3

Site   work Sample   preparation Lab  work Software work /simulation Software   analysis  & WQI

Diagram, map

Description automatically generated

Audio Recording 11 Nov 2021 at 2:31:20 PM

Audio Recording 11 Nov 2021 at 2:33:48 PM. Audio Recording 11 Nov 2021 at 2:34:32 PM. 

Scene 4

Audio Recording 11 Nov 2021 at 2:33:48 PM

Audio Recording 11 Nov 2021 at 2:34:32 PM

Audio Recording 11 Nov 2021 at 2:47:38 PM. LANDUSE MAP OF LANGAT BASIN. 

Scene 5

Landuse map of Langat basin
Land use
Urban, Settlements And Associated Non-Agricultural A
Tree, Palm and Other Permanent Crops
Swamps, Marshland and wetland Forest
Animal Husbandary Areas
Horticultural Lands
Short-Term Crops
Idle Grassland
Forest Land
Water Body
Others
0 3.5 7
21
14
101030'O"E
101040'O"E
101050'O"E

Audio Recording 11 Nov 2021 at 2:47:38 PM

Audio Recording 11 Nov 2021 at 2:56:40 PM. BASELINE WATER ANALYSIS QUAL2K. 

Scene 6

2 Stream Water QuaÆty Model
3 SC LANGAT RIVER (6'27/20•12)
4 Water Quafty Data:
7 ributary
(umms) ISS (mgDL)
DO (mgozu
Opn Old
CBODs
Run Fortran
NH4(ugWLJ N03
53.86
2931

2
3
4
5
6
7
8
9
10
11
12
Stream Water Quality Model
SG LANGA r mVER (6/27/2012)
Hydraulics Data:
Tributa
No.
Distance
53.860
29.310
0.000
Q data
m3/s
20.380
34.040
93.660
H-data
3.000
3.000
3.000
U-data
4.000
4.000
4.000
Travel tin

SG LANGAT RIVER Mainsrøn'
— CBOO'
— (m02.'L) Max
CBOO' data
(mwzn_) "n
c BOO'dat.

SC LANGAT RIVER (C.'27/N12) Mainstem
—TSS
Minmum T SS-data
— -TSS Min
Maximum T SS-data

Audio Recording 11 Nov 2021 at 2:56:40 PM

Audio Recording 11 Nov 2021 at 2:59:46 PM. ANALYSIS OF FUTURE WATER QUALITY QUAL2K. 

Scene 7

WQI PONT 1
SECTION
12 KM
NEW PROPOSED
INDUSTRIAL AREA
WQ2P01NT2
DENG-KIL SECTION
WQ3 PONT 3
BANTING SECTION
24.55 KM
29.31 KM

O)
(0)
(vii)
(xii)
(xii)
( xvi•)
(xxi)
(xxvi)
(xxvu)
(xxviii)
(xxix>
(XXX)
BOO, at
Sdids
M«cury
CacYriLrn
Ctvcvr-ii_rr,.
Lead
Copper
Tin
Berea
lron (Fe)
Ajum"urn
BMium
Free ChEeine
Sulpha do
Oil and Grease
Nitrcqen
(2)
m WI.
myl-
mg-m
mgt
mgm
ADMI•
40
5590
100
006
002
oos
1.0
1.0
1.0
1.0
1.0
20
4.0
5.0
15
0.5
2.0
50
2.0
1.0
20
10.0
(3)
40
6090
so
0006
001
0 20
oos
oos
010
020
om
20
10
10
10
1.0
20
1.0
0001
10
1.0
10
100
•ADW- ArrerCan Dye Institute

Audio Recording 11 Nov 2021 at 2:59:46 PM

Audio Recording 11 Nov 2021 at 3:09:47 PM. RESULTS & DISCUSSIONS. 

Scene 8

Parameter / Location Kajang (Upstream) Dengkil (Midstream) Banting (Downstream) pH (at 25 o C) 6.74 6.66 6.71 BOD (mg/L) 6.5 5.35 7.25 Total SS (mg/L) 125.8 68.6 129.0 AN (mg/L) 1.19 0.91 0.73 DO (mg/L) 3.47 3.87 4.08 COD (mg/L) 57.0 31.9 13.14 Average WQI 51.1   56   57.3   Class 31.0 – 51.9 IV 51.9 – 76.5 III 51.9 – 76.5 III Status Polluted Slightly polluted to polluted Slightly polluted to polluted

Table 1	Average water quality and classification of   Langat River

Audio Recording 11 Nov 2021 at 3:09:47 PM

Audio Recording 11 Nov 2021 at 3:15:59 PM. 9. Chart Description automatically generated with medium confidence. 

Scene 9

Chart

Description automatically generated with medium confidence

Figure 1	QUAL2K model of the observed data and simulated data for the main stream of the Langat River

Audio Recording 11 Nov 2021 at 3:15:59 PM

Audio Recording 11 Nov 2021 at 3:23:43 PM. CONCLUSION. 

Scene 10

This study has investigated the water quality of Langat River, Selangor, using both laboratory work and software  modelling (QUAL2K).  It was found that the average WQI of Langat River Basin upstream is 51.5, which is categorized as Class IV (polluted); meanwhile, the average WQI for the midstream and downstream are 56 and 57.3, respectively, which both are categorized as Class III (slightly polluted to polluted). The water quality parameter data from laboratory work was used as baseline to simulated a scenario,  i.e., pollution discharge from a new proposed sewage treatment plant using a calibrated and  validated QUAL2k model.  Developing a sewage treatment plant following standard B of effluent discharge stipulated by  Environmental Quality (Industrial Effluent) will decrease the existing water quality parameters. The QUAL2k model is able to improve the water quality classification to be within  the range of Class II (clean) and Class III (slightly polluted to polluted).  The QUAL2k model developed in this study emerged as reliable predictors to  various stakeholders and authorities in identifying problematic areas to improve  the Langat River water quality.

Audio Recording 11 Nov 2021 at 3:23:43 PM

Audio Recording 11 Nov 2021 at 3:27:39 PM. THANK YOU. 

Scene 11

Audio Recording 11 Nov 2021 at 3:27:39 PM

PowerPoint Presentation

Scene 1 (0s)

Scene 2 (39s)

Scene 3 (2m 51s)

Scene 4 (4m 2s)

Scene 5 (4m 13s)

Scene 6 (4m 58s)

Scene 7 (5m 51s)

Scene 8 (6m 14s)

Scene 9 (7m 16s)

Scene 10 (8m 27s)

Scene 11 (9m 41s)