Analyzing the Environmental impact of industrial wastewater 1. Impact on sewerage system. 2. Impact on water bodies. 3. Impact on factories environme

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Industrial Wastewater DischargeIndustrial Wastewater Discharge
and Environmentand Environment
Prepared and Presented by
Dr. Helaley Abdel Hady Helaley
Chief of Industrial Wastewater, Sludge and Reuse Sector
Alexandria Sanitary Drainage Company.
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International Summit: 19 – 20 January 2014
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Analyzing the EnvironmentalAnalyzing the Environmental
impact of industrial wastewaterimpact of industrial wastewater
1. Impact on sewerage system.
2. Impact on water bodies.
3. Impact on factories environment
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Direct discharge into Alexandria public sewerage systems
1. Impact on sewerage system
Treatment plants Pump stations Pipelines
Acids and alkaline discharge
Oil, Grease & Detergents
Sudden flow changes
Sulphides
Organic Solvents
Organic solvents
Dissolved bubble gases
Scum
Grit and suspended solids
Scum
Heavy Metals
Hazardous organic matter
High Temperatrure
Detergents
Organic and inorganic SS
Impacts
- Corrosion
- Flow reduction .
- Precipitation .
- Clogging and flooding.
- The difference in the
speed of the flow of water
inside pipes
- The escalation of toxic
hazardous gases to
workers.
- Reduce the life span of
the network.
impacts
•Blockage in screens as a result
of the accumulation of scum
layers is difficult to remove,
reduce screening efficiency .
•Difficulty of sludge drying
process.
•
•Impeding the processing of
primary and secondary treatment
operation which affects the re-use
of treated .
•Increasing organic load of the
effluent
impacts
- The escalation of gases
cause suffocation for the
workers.
- Corrosion of moving parts
causing pump failure
- Rise in pump temperature.
- Corrosion in the pump
column.
1. Impact on sewerage system
Dr. Sama MZDr. Sama MZDr. Sama MZDr. Sama MZ

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Main industrial pollution sources into Alexandria water bodies
2. Impact on Water Bodies
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Along the coast of Abu-Qir Bay, there exist about
22 different factories representing four major
categories of industrial wastes which are: food
processing and canning, paper industry, fertilizers
industry and textile manufacturing.
The wastes of these industries are of either
organic or inorganic nature and are pumped to the
sea through El-Tabia pumping station; it pumps
out an average amount of 1.5–2.0 million m3 of
polluted water per day
1. Abo Qir bay pollution sources
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West Zone of Abo Qir bay and the main industries disposing their
effluents into it.
Industrial Companies that
discharges directly into
Amia drain then to Abo Qir
through Tabia pump
station:
- National paper company.
- Kaha for preserved foods
Co.
- Agrokim for Agricultural
Chemicals co.
- Chemics for pesticides
co.
-Nasr for drying
agricultural.
Industrial Companies that
discharges directly into Abo
Qir Bay at Alexandria
Governorate
-Abo Qir for Fertilizers co.
-Abo Qir power station.
-60 Ton TSS.
In addition to discharge of four big companies at Kafr El-
Dawar with rate of 95000 m3/day
Abo Qir bay pollution risk
The pollution of Abu-Qir Bay region induced
a panic oxidative stress in fish living in this
area.
This indicates that the industrial wastewater
treatment in this area is not adequate to
avoid the hazardous effects of such
pollutants.

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Impacts of Marine Pollution
1. Create unpleasant sea shore conditions.
2. Affecting different touristic activities.
3. Affecting fishery activities.
1 - Water quality deterioration 2 - Reduction of surface area
3 - Reduction of lake production 4 - Lake depth flocculation
2. Lake Maryout problems
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*Total discharge on lake maryout 11,7 Mm3
Discharge quantities on lake maryout
Fresh water 7 2,7
Mm3/day, 23% of
total discharge.
Agricultural drains,
8 Mm3/day,
68% of total
discharge.
Domestic drains,
900 thousand m3/day,
7.7% of total
discharge.
Industrial drains,
63 thousand
m3/day,
0.54% of total
discharge.
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Direct discharge of industries into Maryout lakeDirect discharge of industries into Maryout lake
There are 6 main companies discharges its industrial
wastewater through lake Maryout.
1-Misr Amreya Spinning & Weaving (12,000 m3/d).
2-Petrochemical Company (25,000 m3/d).
3-El Amreya Petroleum Refinery Company (10,000 m3/d).
4-Salt and Soda Company (120 m3/day).
5-Sidi Krir Petrochemical Company (1000 m3/day).
6-Misr Petroleum Company (35 m3/day).
The Total Direct Discharges = 48,155 m3/day

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Different Industrial,
agricultural and sanitary
sources on Lake Maryout
Misr
Petroleum
Amriya
Petroleum
ًWest Noubaria drain
Misr Petroleum
Merghem
Amriya
Textile
Salt and Soda Co.
Petrochemicals Co.
Sidi Krir for
petrochemicals Co.
Alex Fiber
Co.
Agricultural drains
Roads
Canal water
Drains
Indirect discharge
Domestic sewage
Direct discharge
The major reason of the poor water quality in the Lake Maryout is the disposal
of up to 900,000 m3/d of primary effluent of ETP and WTP discharges into lake
Maryout and direct discharges from petroleum and chemicals industeries .
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The dissolved
oxygen
concentration in
the Lake drops
to as low as
0.2 mg/L
with high
concentration of
Nitrogen.
This effluent has high organic load and low oxygen content.
Activities to restore the Lake ecosystem
Increase the dredging activity of the sediments in all basins in order to
improve water circulation, self cleaning and fish production
- Reeds harvesting, by the provision of additional machines to the fishery
department. This activity could become financially self sustainable by
the development of a paper making industry that would buy the reeds.
- Provision of engineered wetland in strategic locations (Oumoum and Kalaa
drains outfalls) in order to reduce the organic pollution and nutrient
loads of water entering the Lake
- Aerating the water at the outlet of the WTP and Kalaa drain in order to
increase the BOD and decrease the H2S emissions
--Increasing the water level and thus the storage capacity of certain
basins.
• El_ mex bay receives 10-
12 Mm3/day of the
overflow of Maryout lake
through El-mex pump
station.
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El Max bay pollution problems-3

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Direct discharge of industrial waste into elDirect discharge of industrial waste into el--mexmex bay.bay.Direct discharge of industrial waste into elDirect discharge of industrial waste into el--mexmex bay.bay.
}‫ر‬ ‫ر‬)١١({
ElMex tanneries complex
El Mex pump stations
From the preliminary survey it was found that all factory's
for93with the limits of Lawnot complyingeffluents were
year 1962 and its presidential decree 44 for year 2000.
They was dispose their raw wastewater directly into the sewerage
system, which creates chronic street flooding problems all over the
industrial zones.
As well as affecting the quality of the old treatment plant influent
located at the east of the city and accordingly will affect the newly
instructed tertiary treatment plant.
Borg El-Arab is a new industrial city within Alexandria containing around 1200
factory distributed within four industrial zones. The actual working is 700.
Industrial activities includes: food, plastics, paper, weaving, building materials,
chemical, pharmaceutical and various industries….etc.
3. Impact on Factories environment
.
• Microbial pollution and production operation threatening
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• Unpleasant odor emissions.
• Flies problem.
• Visual pollution.
• Traffic problems

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In and Out Infrastructure threatening
stress on theUnder these circumstances we would like to
to assureline Monitoring systems-Onimportance of applying
effective control of industrial effluent quality to define on spot the
violating industries and effective to enforcing industries to minimize
their effluent pollutants .
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To minimize the amount of industrial discharges it must be
encourage investment in the field of environment-friendly
production technologies, applying sustainable industrial
wastewater treatment options and
encouraging using the most favored waste minimization
options
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Cease Industrial Pollution = Clean Environment
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