WasteWater Treatment In UAE

WasteWater Treatment In UAE

SST PROJECT



What is WasteWater Management?

Wastewater is any water that requires cleaning after it is used.
The goal of wastewater management is to clean and protect
water. ... This means that water must be clean enough so that it
can be used by people for drinking and washing, and by
industry for commercial purposes.



Introduction

1.Wastewater is generally divided into two categories: black water and gray water.

Black water refers to toilet waste and gray water refers to the remaining wastewater from sinks,
showers,

laundry, etc.

2. The septic tank provides primary treatment of both types of wastewater by settling out the solids
and

providing space for floating scum to be retained. Relatively clear, but not clean, water is discharged
from

the septic tank to the absorption field. The soil provides for further treatment when the waste water

percolates through the soil profile.

3.Untreated or improperly treated wastewater contains biological contaminants known to cause
disease.



Sustainable Development Goal No.6

About SDG 6

Sustainable Development Goal 6 is about "clean
water and sanitation for all". It is one of 17
Sustainable Development Goals established by the
United Nations General Assembly in 2015, the official
wording is: "Ensure availability and sustainable
management of water and sanitation for all."

Steps of WasteWater Treatment

Step 1: Screening and Pumping
Step 2: Grit Removal
Step 3: Primary Settling
Step 4: Aeration / Activated Sludge
Step 5: Secondary Settling
Step 6: Filtration
Step 7: Disinfection
Step 8: Oxygen Uptake

Questions

1.How wastewater is treated in UAE?
2.What does Dubai do with wastewater?

3.What is the importance of wastewater management?

4.What is the most important factor to consider when planning a wastewater system?

Answers

1.Local municipalities in the UAE are responsible for managing, disposing and treatment of

wastewater. In Abu Dhabi, Abu Dhabi Sewerage Services Company (ADSSC) is in charge of
collecting and treating wastewater discharged from all residential and commercial customers.

2.Sanitation Infrastructure. Dubai Municipality maintains two main sanitation plants, one in Al Awir,
and one in Jebel Ali. There are also several smaller sewage treatment plants around the emirate
operated by private operators to serve specific districts or neighbourhoods.

3.The main goal of wastewater treatment facilities is to protect humans and the ecosystem from
harmful and toxic elements found in wastewater. Water treatment facilities were designed to speed
up the natural process of purifying water because the natural process is overloaded.

4.Flow rate is arguably the most critical factor when calculating the capacity of your wastewater
treatment system.

Extended Reading

The UAE has one of the highest levels of water consumption per capita in the world (360-400
litres per day), whilst also having a dearth of readily available freshwater. Despite this, only 5%
of water used in the country is treated wastewater, with the primary sources instead being
groundwater and desalinated seawater. However desalination is an expensive process and
current reliance on groundwater is clearly unsustainable in the long-term.

Water supply is handled at a municipality (DEWA) level, with Abu Dhabi in particular
recognising the need for change. The capital has declared its intention to reuse all waste water
by 2020, with the launch of three new projects in this area. Currently, Abu Dhabi reuses only
5% of the 460,000 cubic metres of waste water that they annually generate.

Waste water itself can be generated from several sources, such as domestic waste water
(sewage), agricultural run-off and industrial waste (as a by-product of manufacturing). Waste
water from each of these sources poses different characteristics and challenges, including the
types of toxic chemicals present.

Fun Fact

According to the Environment Agency Abu Dhabi, 72 percent of water used in the
UAE comes from groundwater, 21 percent comes from desalination and only 7 per
cent is treated water.

Furthermore, according to experts treated water is often left unused and dumped.

The UAE is listed by the United Nations as a high-rank country when it comes to
water stress, a situation which occurs when the availability of water is not in balance
with the demand for water.

While resources are limited, the UAE has one of the highest water consumption
rates in the world.

Residential Wastewater Facts

• According to estimates from the United States Environmental Protection Agency (US
EPA), roughly 23,000 to 75,000 sanitary sewer overflows happen each year.

• An estimated 3 billion to 10 billion gallons of untreated waste is released from sewage
treatment plants annually.

• Nineteen percent of homes use septic systems that may contribute to contamination.

• An estimated 14,748 public-owned water treatment plants provide wastewater collection,
treatment, and disposal service to 238.2 million people.

• Toilets, showers, and faucets represent 62% of all indoor water use.

Industrial Wastewater Facts

• Wastewater discharges and the resulting pollution make a greater impact than water used during the
production process.

• Industries that rely on organic raw materials create the largest amount of organic pollution.

• A lot of industrial, untreated wastewater is released into open waterways, which negatively affects the
quality of water overall by potentially entering aquifers and groundwater.

• Industrial water usage makes up about 22 percent of global water usage.
• In 2009, European and North American industries used 50 percent of all water, compared with only 4

percent to 12 percent usage in developing countries.

Video Link

https://youtu.be/PkM56X5DjF4

Thank U
Project by Axel,Ashwin,Adwaith,Jazib