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Sewerage Turnkey Contractors in Doha Qatar


How do the wastewater treatment plants (WWTPs) work?

Drinking water is a very precious commodity for almost half of the world. Have you ever wondered what is happening to wastewater after we flush it down by our drains and toilets?

Access to drinking water in our domestic dwellings is nothing unusual. We take a shower and water drains away. We use a toilet and all human waste drains away through pipeline into the dark. We do the washing-up and water along with the dish soap disappears in the kitchen sink drain. Did you ever think where the water ends up and what happens with the used water afterwards?

Mostly, we believe this is not our concern. At least until we start contemplating the wastewater treatment. If you are interested in WWTPS, this is the right place for you.


  • WASTE MANAGEMENT POWER WASTE MANAGEMENT & TRANSPORT CO WLL SUPPLIERS IN DOHA QATAR
  • PORTABLE CABINS ARMSTRONG POWER LLC SUPPLIERS IN DOHA QATAR
  • ELECTRO - MECHANICAL CONTRACTORS RSS TRADING & CONTRACTING WLL SUPPLIERS IN DOHA QATAR

In a nutshell, I will try to explain the wastewater treatment process, starting from entering the gates of the WWTP to its transformation into service water.

But first things first. Let’s start with few basic definitions. 

What is wastewater?


It is used water originating from domestic, industrial, agricultural, and medical or transport activities. Used water becomes wastewater upon the change of its quality, composition and/or temperature.

However, wastewater does not include water released from ponds or reservoirs for fish farming.

Types of wastewater

Wastewater can be divided into two major groups:

Sewage water is all wastewater used in domestic dwellings (e.g. originating from toilets, showers or sinks).
 
Industrial wastewater originates from production, industrial and commercial activities, and has a different chemical composition to sewage water.

In broad terms, we may distinguish municipal wastewater originating from municipalities. It has different ratio of sewage water, industrial wastewater and unabsorbed rain water flowing through the public sewers.


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  • SAFETY EQUIPMENT & SAFETY WEAR INDUSTRIAL EQUIPMENT & SVCS CO ( IESCO ) SUPPLIERS IN DOHA QATAR

How does the municipal wastewater treatment process work?

Step-by-step guide:

1. Firstly, wastewater is drained to the WWTP by gravity through the main sewer system of the size of a car. Having such size, objects you could hardly imagine reach the WWTPs, ranging from mattresses, fridges, tree branches to wallets disposed of by thieves in order to get rid of the evidence.

2. The first mechanical stage is called preliminary treatment or rather pre-treatment.

Water flows through gravel chamber for settling out the grit from water. Afterwards, gravel is disposed of at the dump. Water further reaches the bar screens used to remove large objects from the wastewater. At first come the coarse screens and then the fine screens which remove smaller objects such as matches, cigarette butts or undigested foods.

3. After the removal of large objects, grit is to be removed from the wastewater. Similar to the gravel chamber, grit chamber allows the settlement of grit. Then, grit is removed from the tank and disposed of at the dump. Neither gravel nor grit can be reused due to their high contamination.
 
4. The next sedimentation stage is called primary treatment during which the wastewater flows to so-called "pre-settling basins” or, using the technical term, primary settling tanks.

Water is driven towards the hopper in the base of the tank. Hopper arm moves around the edge of the tank at the velocity of 4cm/s. Treated water heads toward edges and the particulates of higher sedimentation velocity than the flow velocity settle on the bottom of the tank.

This is the point where primary pre-treatment ends and secondary wastewater treatment starts. After the primary treatment, level of wastewater pollution drops to 60%.

5. The secondary treatment, also called biological stage, is based on natural processes. WWTPs use bacteria which consume the contaminants, in particular biodegradable organics, carbon and phosphorus. 

Dead bacteria and organic residues subsequently transform into sludge.

6. During the biological stage, the excess sludge (i.e. excess bacteria) is pumped out and moved before the settling tanks. Here, the sludge settles and is transported to digestion tanks for further treatment.

7. In the digestion tanks, sludge pumped out of the settling tanks is heated and mixed. Afterwards, biogas is produced during the digestion process from the sludge which the WWTPs can reuse, for instance for electrical and thermal energy production.

8. When sludge digestion reaches optimal level, the second digestion stage takes place in storage tanks. Here, the water is separated from the semi-solid sludge and transported back for further treatment, whereas the residual semi-solid undergoes mechanical dewatering.

9. Sludge, digested and dewatered to the optimal degree, is finally disposed of at the dump. In about a month, sludge is adequately dried out and ripe. If it complies with agricultural standards, it can be reused for fertilisation of industrial crops.

10. The final step of wastewater treatment is the deep inspection of service water. Aim of this inspection is to analyse the contamination level and ensure that the treated water complies with the highest standards, defining its release or reuse for domestic and/or industrial purposes. Wastewater treatment is certainly a difficult process with noble goal which requires work of qualified experts. For Source info, Click Here!

CHEMICAL SEWAGE WATER REMOVAL

CHEMICAL WASTE & RAIN WATER

CLEANING & SUCTION OF SEWAGE

COMMUNITIES

CONSTRUCTION & DEMOLITION WASTE

DUMP

EDUCATIONAL INSTITUTES

EXHIBITIONS

FACTORIES & SHOPPING MALLS

FESTIVALS & SPECIAL EVENTS

GARBAGE COLLECTION / DISPOSAL

GARBAGE DISPOSAL

GARBAGE REMOVAL

HAZARDOUS

HAZARDOUS WASTE REMOVAL

HAZARDOUS WASTE TRANSPORTATION & DISPOSAL

HIGH PRESSURE JETTING / SUPER SUCKER VACUUM TANKERS

HIGH PRESSURE JETTING MACHINES

HIGH PRESSURE VACUUM SUPER SUCKERS FOR TANK CLEANING

INDUSTRIAL & CONSTRUCTION WASTE & DISPOSE OFF IN THE MOST ENVIRONMENT FRIENDLY WAY AS PER THE RULES & REGULATIONS OF MUNICIPALITY

INDUSTRIAL WASTE MANAGEMENT

JETTING TANKER SERVICES

MAINTENANCE OF GREASE TRAP FILTERS

MANHOLE / SEPTIC TANK CLEANING

MANHOLE CLEANING & PIPELINE CLEANING

NETWORK CLEANING

O & M SERVICES

OFFICE TOWERS

OIL

REMOVAL & DISPOSAL OF ALL KINDS OF WASTE

REMOVAL OF SEWAGE

RESIDENTIAL WASTE COLLECTION & DISPOSAL FROM HIGH RISE BUILDINGS

ROAD SWEEPING SERVICES

SEWAGE REMOVAL FROM CAMPS / PROJECTS

SEWAGE TRANSPORTATION & MANAGEMENT / SEWAGE TREATMENT PLANT OPERATIONS & MAINTENANCE

SEWAGE TRANSPORTATION SERVICES

SEWER NETWORK CLEANING

SEWERAGE LINES / MANHOLES / TANK CLEANING

SKIP

SKIP HIRE

SLUDGE / SEWAGE WATER TRANSPORTATION

SUPPLY OF DRINKING WATER

TANKER / LOADER COMPACTOR VEHICLE SERVICES

TANKERS & TRAILERS FOR SEWAGE

TRANSPORTATION & DISPOSAL OF HAZARDOUS SOLID / LIQUID WASTE COLLECTION

VACUUM SWEEPERS

VILLAS & LABOUR ACCOMMODATION

WASTE FROM SPORT COMPLEXES

WE COLLECT GENERAL

WE DO COLLECTION & DISPOSAL OF COMMERCIAL WASTE FROM HOTELS

WE HAVE MORE THAN 30 TANKERS FOR SEWAGE WATER SERVICES & 10 SKIP LOADER FOR REMOVAL & DISPOSAL OF ALL KINDS OF WASTES

WORKSHOPS





Find below a list of the top Sewerage Turnkey Contractors in Doha, Qatar:



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SEWAGE REMOVAL SERVICES

Sewerage Turnkey Contractors in Doha Qatar


Find below a list of the top products suppliers of Sewage Removal Services in Doha, Qatar:

  • AL HASAN TRANSPORT & EQUIPMENT
    - Sewage Removal From Camps / Projects
  • AL SUWAYED TRADING
    - Skip, Dump, Garbage Removal
  • INCHCAPE
    -
  • ISOBAR WASTE MANAGEMENT & TRANSPORTATION WLL
    - Chemical Sewage Water Removal, Transportation & Disposal Of Hazardous Solid / Liquid Waste Collection, Hazardous Waste Removal, Removal & Disposal Of All Kinds Of Waste, Removal Of Sewage, Sewage Transportation Services
  • POWER WASTE MANAGEMENT & TRANSPORT CO WLL
    - O & M Services, Sewer Network Cleaning, Manhole / Septic Tank Cleaning, High Pressure Jetting / Super Sucker Vacuum Tankers, Vacuum Sweepers, Sludge / Sewage Water Transportation, Garbage Collection / Disposal, Supply Of Drinking Water, Industrial Waste Management, Hazardous Waste Transportation & Disposal, Road Sweeping Services, Sewerage Lines / Manholes / Tank Cleaning, Tanker / Loader Compactor Vehicle Services, Network Cleaning

    • WASTE MANAGEMENT POWER WASTE MANAGEMENT & TRANSPORT CO WLL SUPPLIERS IN DOHA QATAR
    • WASTE MANAGEMENT ISOBAR WASTE MANAGEMENT & TRANSPORTATION WLL SUPPLIERS IN DOHA QATAR
    • CLEANING SERVICES QATAR ENGINEERING HOUSE WLL SUPPLIERS IN DOHA QATAR

  • QATAR ENGINEERING HOUSE
    - Maintenance Of Grease Trap Filters, Cleaning & Suction Of Sewage, Garbage Disposal
  • SHALIMAR TRADING & TRANSPORT
    - We Have More Than 30 Tankers For Sewage Water Services & 10 Skip Loader For Removal & Disposal Of All Kinds Of Wastes, We Do Collection & Disposal Of Commercial Waste From Hotels, Office Towers, Workshops, Factories & Shopping Malls, Residential Waste Collection & Disposal From High Rise Buildings, Communities, Villas & Labour Accommodation, Waste From Sport Complexes, Educational Institutes, Exhibitions, Festivals & Special Events, Construction & Demolition Waste, We Collect General, Hazardous, Industrial & Construction Waste & Dispose Off In The Most Environment Friendly Way As Per The Rules & Regulations Of Municipality, Skip Hire, Jetting Tanker Services, High Pressure Jetting Machines, High Pressure Vacuum Super Suckers For Tank Cleaning, Manhole Cleaning & Pipeline Cleaning, Tankers & Trailers For Sewage, Oil, Chemical Waste & Rain Water
  • TANZIFCO
    -
  • TOP CLASS FACILITY MANAGEMENT
    -


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Author

Chantelle D'Mello

Chantelle D'mello is an avid writer with over four years of hard news experience as part of the award-winning Doha News team. She's previously worked at Al Jazeera and the Huffington Post, and hopes to bring her passion for writing to the Qatar Oil and Gas Directory.

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