1. EMIRATES WATER TECHNOLOGY CO. L.L.C
WATER AND WASTEWATER TREATMENT SOLUTION
The wastewater treatment facility never closes as the city never sleeps

2. TABLE OF CONTENTS Company Profile and Objectives WWTP Design Criteria
Conventional Sewage Treatment Plant
EWT Wastewater Treatment Plant
WWTP Process Phase & Flow Scheme
Conventional WWTP, SBR, SAF
Technical Discussion for WWTP Flow Scheme
EWT Concrete STP Layout
EWT Concrete STP Section Details
GRP WWTP Layout & Section Details
GRP Tanks
Materials used in WWTP
Onsite Construction
End User benefits of Treated Effluent Water

3. Company Profile and Objectives
Emirates Water Technology Co. was established on October 2002 to deal mainly with all kinds of solutions related to the environment and to meet the needs within the Middle East and Gulf Region.
EWT OBJECTIVE:
To provide a feasible solution to the treatment of water and purification solutions and treatment of wastewater in scattered location not connected to public drainage network such as isolated properties, settlements, resorts, small villages and hotels.
To provide safe, clean, and good financial investment water and wastewater treatment processes for collection, treatment and discharge or reuse of treated water and wastewater for customer and environmental satisfaction.
EWT involved in the design and construction of an appropriate sewage treatment plant, which can attain effluent standards, set by the appropriate regulating body.
EWT provides all kinds of technical and administrative support, design, and specifications for customer project free of charge to help in sorting the requirements and providing the right solutions.

4. Company Profile and Objectives
Domestic Wastewater Treatment Plant
EWT has combined expertise in the GRP tanks fabrication and a recognized wastewater treatment technology to construct its modular biological sewage treatment plant (STP) which meets the demand of the smaller to medium sized decentralized sewage treatment applications.
Also, EWT may work out concrete or steel tanking for the waste water treatment system design to meet the end user spaces and site conditions.
Water Purification and Treatment System
EWT has joined efforts with a Greek company M/s TEMAK to offer to its clients the best and efficient water product they may need in their water use in many fields, such as:
Brackish Water Reverse Osmosis
Sea Water Reverse Osmosis
Hemodialysis Reverse Osmosis
Industrial Reverse Osmosis
Cosmetics Reverse Osmosis
Hotels and Resorts Reverse Osmosis
Restaurants and Food Processing Reverse Osmosis
Medical Reverse Osmosis (Hospitals, Laboratories and clinics)
Agriculture Reverse Osmosis

5. DESIGN CRITERIA Sewage Characteristics
1. Influent : Unscreened Raw Sewage Water
2. BOD Loading : gm/per capita/day
3. Hydraulic loading : l/capita/day
4. Septic sewage with soluble sulphides : around 35 mg/1
5. Crude sewage temperatures : Up to 40°C
6. Mandatory Performance Standards
1. Influent Characteristics
a. BOD : <300 mg/l
b. NH4 : <60 mg/l
c. TSS : <300 mg/l
d. COD : <600 mg/l
2. Final Effluent Requirements
a. 5 days BOD : < 10 mg/l
b. NH4 : <10 mg/l
c. TSS : < 10 mg/l
d. COD : <100 mg/l
e. PH : 6 – 8
f. Coliforms : /100 ml.
7. Chlorine residual : mg/l to 2.0 mg/l

6. CONVENTIONAL SEWAGE TREATMENT PLANT

7. EWT WASTEWATER TREATMENT PLANT

8. CONVENTIONAL WWTP (ACTIVATED SLUDGE METHOD) SEQUENCED BATCH
REACTOR (SBR)
SUBMERGED AERATED
FILTER SAF (FBR)
Bar screen
(Solids Cartaway)
N/A – (Cleaning Periodically)
Odor Control Unit
N/A
Grease Strap
(Grease Cartaway)
Sand Trap
(Sand Cartaway)
Full Capacity
Equalizing Tank
Complete Pre Treatment One Tank (Three Compartment – Full Capacity)
Pumping System to Biological Treatment
Pumping System + Gravity Flow (Breakdown)
Full Capacity Biological Treatment (100%)
63% of Total Capacity
(NH4 < 1 mg/l)
Post Clarifier Tank
(Decanting System)

9. CONVENTIONAL WWTP (ACTIVATED SLUDGE METHOD) SEQUENCED BATCH
REACTOR (SBR)
SUBMERGED AERATED
FILTER SAF (FBR)
Excess Sludge Production - Stabilization - Drying – Dewatering – Cartaway
Excess Sludge Production -Stabilization - Drying – Dewatering – Cartaway
N/A
Cleaning Periodically 8% of SBR & Conventional Sludge Production
Sand Filter (Advanced)
BOD5 < 10mg/l
TSS < 10mg/l
Sand Filter (Optional)
Chlorine Contact Tank
External Installation (Pipes, Valves, Platform, Steel)
N/A (System Confined)
UPVC + SS pipes + PE Products
O & M daily Program (100%)
O & M daily Program (70%)
O & M daily Program (10%)
Fully Automatic (100%) +
Manual Operation (20%)
Manual Operation (3%)

10. Technical Discussion for WWTP Flow Scheme
The Pre-treatment phase (gravitation separation):
a-The first chamber holds back the rough floating and sinking substances.
b- The second chamber is an extended settling phase for finer substances.
c- The Third chamber serves as a continued pre-treatment process. (Reduction of BOD5 to almost 70%)
The Biological Purification phase (Primary Treatment):
The aim of this biological purification phase is the breaking-down of the organic substances dissolved in the wastewater and with that reduction of the entry of nutritive substances in the natural water. An extended 24 hours diffused aeration provides the required oxygen demands for the aerobic microorganisms to grow on the installed filters called Bio-bloks and start degradation. The required air-oxygen will be brought in from the ceramic tube diffusers finely blistered by means of working and standby blowers, and the air oxygen goes up to a desirable overthrow of the basin content. The microorganisms grow with the consumption of nutritive substances activated by dissolved oxygen to form an adequate media for biological purification.
The Post-Treatment phase (Secondary treatment):
The water leaves the biological purification phase into the secondary treatment chamber called the Post-Clarifier Tank. This phase serves for the separation of the biologically cleaned water from the surplus biomass. The Post-Clarifier Tank has a funnel-shape at its base so that the surplus biomass (sludge) settles there and than carried out periodically to the first chamber of the Gravitation Separation by means of submersible pump where the sludge is stored until its removal (1 to 12 times per year).
Disinfection phase (Tertiary Treatment):
The biological-treated water leaves by gravity the Post-Clarifier tank into a chamber (manhole) equipped with a Chlorine Disinfection System or UV station prior to entering the Effluent Storage Tank.

11. EWT WASTEWATER TREATMENT PLANT LAYOUT

12. EWT WASTEWATER TREATMENT PLANT SECTION DETAILS

13. EWT WASTEWATER TREATMENT PLANT SECTION DETAILS

14. EWT WASTEWATER TREATMENT PLANT LAYOUT & SECTION DETAILS (GRP TANKS)

15. GRP TANK Supplied by M/s SOLICO

16. GRP TANK Supplied by M/s SOLICO

17. PUMPS : Flyght / Grundfos
Equalizing Pumps: The Equalizing tank is equipped by a set of wastewater submersible pumps feeding the biological treatment process by an average hourly flow equal to Q/24. Return Sludge Pumps: Sets of submersible pumps that carried out periodically the sludge that settle in Post Clarifier Tank to the first chamber of the Gravitation Separation.

18. Air Blowers: Thomas Rietchle; Mil’s
The required air-oxygen will be brought in from the ceramic tube diffusers finely blistered by means of working and standby blowers
Diffusers:
Pall Corporation

19. A Filter Media For Wastewater Treatment Of Unique Quality
BIO-BLOK®, developed by EXPO-NET Denmark A/S, is a well-tested product that has proved to be very efficient in the bacteriological treatment of domestic sewage and industrial wastewater. Submerged, Aerated Filters The amount of microorganisms decides the removal rate in treatment plants. An increase of microorganisms can be achieved by installing BIO-BLOK®. By applying the BIO-BLOK® products, a large surface will be established on which the microorganisms fix. Thus the amount of microorganisms in the treatment plants increases, hence removal rates and plant capacity increase significantly. The oxygen in the air is absorbed in the water and into the biofilm. The dissolved organic material in the wastewater diffuses into the biofilm. This biofilm consists of microorganisms that degrade the wastewater into CO2 and water, and at the same time, new cells develop.
Biological Growth on the Filter
Example of biological growth on BIO-BLOK® 100 with rough surface.

20. BIO-BLOCK® filter media A filter Media for wastewater treatment of unprecedented quality 12 goods reasons to choose BIO-BLOK for installation
Very resistant to deformation, so strong that you can walk and work freely on the material
Self supporting
Easy to handle, modular and lightweight
Made from the environmentally friendly material – Polyethylene, 100% recyclable
Contains no PVC compounds or glue
UV resistant
High porosity ensures sufficient aeration
Self cleaning, do not clog
Biologically and chemically non degradable
Unique design and surface structure enhances development of biological film
Easy to install and fit to any size or shape of bio-reactor tank
Extremely efficient, stable and reliable during operation
The Bio- block

21. Installation of Biobloks
Assembly of Diffusers

22. UNDERGROUND GRP WASTEWATER TANK
GRP Tanks supplied by SOLICO
The volume capacity varies in accordance with the designs and specification done by EWT.

23. THE TREATED EFFLUENT USAGE & DISPOSAL
Use for irrigation purposes
Use for toilet flushing
Industrial use
Cooling systems
Heating systems
Construction Industry
Backfilling & compacting watering
Concrete mixing up to BS Standard
Curing
Equipment & machinery cleaning (road works)
It will discharge to bodies of water, (i.e., river, lakes, oceans)

24. Emirates Water Technology L.L.C.
Thank you!
Emirates Water Technology L.L.C.