70
N. M. Jais et al.
Figure 4.6 shows the treatment flow for Sta. Ana Public Market. The grease trap
is a simple tank consisting of one or two chambers, with a position deep below the
anticipated wastewater level. The floating grease was trapped while the wastewater
will exit through the pipes (Rahmat et al. 2018; Al-Gheethi 2019).
4.6 Treatment Technologies in Case Study in Laboratory
Experiment
There are several case studies of fresh market wastewater treatment technology using
laboratory batch experiment which are
(a) Effective microorganisms for preliminary treatment.
(b) Phycoremediation process by microalgae Scenedesmus sp.
(c) Sequencing batch reactor.
(d) Modified sand filtration for preliminary treatment.
Shahbuddin et al. (2018) use effective microorganisms to treat fresh market
wastewater during preliminary treatment. Effective microorganisms are nature-based
solution for sustainable water management and popular media due to its low operational cost and synergistic effects to the environment. The effective microorganisms
are widely applied in many countries as a method for wastewater treatment. The
effective microorganisms are antioxidant, able to inhibit harmful bacteria substance
and enhance the proliferation of beneficial microorganisms and fungi to restore and
balancing natural system.
The wastewater sample from Selayang Public Market located at Bandar Baru
Selayang, Selangor were collected for the study. This fresh market wastewater was
discharged directly to the river with intersection of the most critical sources of
untreated wastewater from two rivers, Batu River and Jinjang River. The wastewater
samples were collected for one hour interval starting from 7 am to 12 pm by using
2 L clean plastic sampling bottles and preserved by adding sulphuric acid (H 2 SO 4 )
to reduce the pH to 2 or less. The parameters from fresh market wastewater that
were tested are pH, DOBOD 5 , CODTSS and ammoniacal nitrogen (NH 3 −N). The
wastewater samples were mixed by adding all of the samples in each interval, in a
beaker with magnetic stirrer. 100 mL of effective microorganisms were then added
into 1 L of wastewater sample.
As the result, flow rate at 8 am show highest amount with 0.015 m
3 /s and lowest
at 10 am, and it can be assumed the peak hour of this market activities is at 8 am
The highest BOD 5 , COD, TSS and NH 3 −N is 423 mg/L, 1566 mg/L 933.3 mg/L
and 0.14 mg/L, respectively, with the range of pH and DO are 6.79–7.18 and 7.38–
7.53 mg/L. Shahbuddin et al. (2018) revealed the bacteria existed in the wastewater is not tolerant in lower dissolved oxygen level which they need to survive and
decompose the organic compound. The nitrogen is vital for plants and animals in the
formation of protein for cell growth.
N. M. Jais et al.
Figure 4.6 shows the treatment flow for Sta. Ana Public Market. The grease trap
is a simple tank consisting of one or two chambers, with a position deep below the
anticipated wastewater level. The floating grease was trapped while the wastewater
will exit through the pipes (Rahmat et al. 2018; Al-Gheethi 2019).
4.6 Treatment Technologies in Case Study in Laboratory
Experiment
There are several case studies of fresh market wastewater treatment technology using
laboratory batch experiment which are
(a) Effective microorganisms for preliminary treatment.
(b) Phycoremediation process by microalgae Scenedesmus sp.
(c) Sequencing batch reactor.
(d) Modified sand filtration for preliminary treatment.
Shahbuddin et al. (2018) use effective microorganisms to treat fresh market
wastewater during preliminary treatment. Effective microorganisms are nature-based
solution for sustainable water management and popular media due to its low operational cost and synergistic effects to the environment. The effective microorganisms
are widely applied in many countries as a method for wastewater treatment. The
effective microorganisms are antioxidant, able to inhibit harmful bacteria substance
and enhance the proliferation of beneficial microorganisms and fungi to restore and
balancing natural system.
The wastewater sample from Selayang Public Market located at Bandar Baru
Selayang, Selangor were collected for the study. This fresh market wastewater was
discharged directly to the river with intersection of the most critical sources of
untreated wastewater from two rivers, Batu River and Jinjang River. The wastewater
samples were collected for one hour interval starting from 7 am to 12 pm by using
2 L clean plastic sampling bottles and preserved by adding sulphuric acid (H 2 SO 4 )
to reduce the pH to 2 or less. The parameters from fresh market wastewater that
were tested are pH, DOBOD 5 , CODTSS and ammoniacal nitrogen (NH 3 −N). The
wastewater samples were mixed by adding all of the samples in each interval, in a
beaker with magnetic stirrer. 100 mL of effective microorganisms were then added
into 1 L of wastewater sample.
As the result, flow rate at 8 am show highest amount with 0.015 m
3 /s and lowest
at 10 am, and it can be assumed the peak hour of this market activities is at 8 am
The highest BOD 5 , COD, TSS and NH 3 −N is 423 mg/L, 1566 mg/L 933.3 mg/L
and 0.14 mg/L, respectively, with the range of pH and DO are 6.79–7.18 and 7.38–
7.53 mg/L. Shahbuddin et al. (2018) revealed the bacteria existed in the wastewater is not tolerant in lower dissolved oxygen level which they need to survive and
decompose the organic compound. The nitrogen is vital for plants and animals in the
formation of protein for cell growth.