TANQIA, the UAE’s first privately owned wastewater assortment and remedy utility, doesn’t lack imaginative and prescient.

Government Chairman: Ibrahim Elwan

The state-of-the-art wastewater assortment and remedy system (WWCTS) in Fujairah strives to drive down prices, promote sustainability, and accommodate future demand with renewable power.

Water provide throughout the Gulf Area is dependent upon two sources: seawater, by way of desalination, and underground aquifers. Floor water declines and salinity is rising resulting from over-pumping and seawater ingress. The UAE’s provide depends predominately on desalination and the recharging of underground wells.

Latest UAE authorities coverage requires maximising recycled wastewater to substitute higher-value desalinated and underground water. TANQIA is a regulated utility, developed by the Elwan Group, with the mandate to design, finance, assemble, function, preserve, and develop the WWCTS to satisfy forecast demand.

The greenfield wastewater system was applied in two phases. Building commenced in 2005 industrial operation started in 2009. Phases I and II comprise two trains of 8,000 m3/day (2 x 8,000 m3/day) and 179 km of wastewater assortment community (WWCN) with 29 pumping stations.

Since TANQIA started operations in 2009 at a 16-hectare website south of Qidfaa, north of Fujairah’s capital, the utility has blazed a path because the Center East’s first privately held WWCT utility. It has set business benchmarks to drive down the price of wastewater companies and develop its remedy capacities.

Highest High quality, Lowest Price

Demand forecast for wastewater companies within the 92 sq. kilometre concession space guides the utility’s funding technique. Inhabitants progress projections predict common annual progress of 5.2 p.c at some stage in the concession interval. The precise fee of inhabitants progress has accelerated to about eight p.c. There was additionally a sustained rise in per-capita water consumption, from 174 litres in 2002 to 379 litres in 2021.

TANQIA’s technique is to regularly enhance tariffs to satisfy operational and upkeep prices. The utility is an environmentally acutely aware agency whose emphasis is to extract useful sources for “financial recycling” — an essential ingredient in value discount — with the smallest environmental footprint attainable.

Technique Targets Achieved

When GoF and TANQIA executed the concession space, the WWCN lined simply 179 km; the community has since expanded to 546 km. The service-coverage ratio had elevated to 87 p.c of the inhabitants within the concession space by 2021. The remaining 13 p.c stays unconnected due to authorities plans to make use of the realm for a industrial metropolis centre. Wastewater generated continues to be evacuated by Fujairah municipality for remedy. This technique was applied with the assist of the federal government and municipality of Fujairah, and the federal government of Abu Dhabi

TANQIA is increasing its companies to satisfy demand. The annual fee of inhabitants progress was forecast at 5 p.c. Precise progress was 9 p.c in the course of the execution of phases I and II, making the development of Growth I needed.

TANQIA intensified its upkeep, concentrating on preventative substitute of vital elements of wastewater remedy plant. As WWCN was to be financed by one-time, non-refundable connection expenses for property homeowners, TANQIA broadened protection to satisfy demand.

Revised Growth I

TANQIA relied on Revised Growth I investments to realize sustainability and better reliance on renewable power, in addition to the remedy of sludge for reuse. Phases I and II lowered the consumption of standard power. These measures lowered operation and upkeep prices. Sludge remedy generates revenues from surrounding industries.

The firefighting and fireplace alarm system of the WWTP and Revised Growth I will probably be upgraded to adjust to tips. Revised Growth I can even entail works and fittings for the administration constructing, and the pipeline community to produce effluent to the Etihad Water and Electrical energy (EWE) distribution community by way of the effluent-balancing tank close to the WWTP website. The steadiness will guarantee unrestricted irrigation, in compliance with World Well being Organisation requirements.

The electromechanical (E&M) works in Revised Growth I embody the availability and erection of kit for the 4 new trains, and the addition of two belt presses for sludge dewatering of the brand new Mohamed Bin Zaid (MBZ) metropolis concession space. It can additionally present a brand new pumping station for the balancing tank. Further work entails the availability and erection of the sharpening plant’s E&M to improve effluent high quality.

Graph 1: Total Annual Carbon Dioxide Savings [t/a]

Graph 1: Complete Annual Carbon Dioxide Financial savings [t/a]

Progress

Building of Revised Growth I is superior, and the contract for civil and electromechanical works is 50 p.c full. Completion of Stage I is predicted by the top of this 12 months. Stage II, including an additional 16,000 m3/day, is due for completion by July 31 subsequent 12 months. Revised Growth I’ll enhance ITC of WWTP from the 16,000 m3/d in place to 46,000 m3/d.

An Increasing Community

TANQIA’s greenfield WWTS comprised a wastewater remedy plant processing 16,000 m3/day, composed of two trains, 179 km of WWCN, and 29 pumping stations. This method offers companies to 4,725 properties. The variety of properties related elevated from 4,725 to eight,352 over the identical interval.

This represents 20,330 accounts related to the WWCN, whereas the inhabitants served by TANQIA’s wastewater companies elevated from 37,187 to 124,300, a mean annual enhance of eight p.c.

Peak wastewater technology for remedy reached 27,000 m3/d, even supposing the ITC had been at 16,000 m3/day since 2009 — and the deficit will persist till Revised Growth I is accomplished. Evaluation of water consumption information within the concession space reveals that peak quantity of wastewater technology elevated at a mean annual fee of 9.7 p.c for 2002–2021, at about 27,000 m3/day in December 2021.

The unprecedented progress in water consumption and technology of wastewater requires pressing funding to extend the ITC of the WWTP, coupled with systematic and gradual adjustment in water and wastewater tariffs to encourage conservation and the introduction of water-saving units.

TANQIA-SIYANA — an organization fully-owned by the Elwan Group — operates the WWCTS, and has managed to keep up the rise in influx of 27,000 m3/d by way of its intensive upkeep and substitute programme for the prevailing ITC of 16,000 m3/d. Scarcity of ITC reduces the possibilities of producing effluent on the requirements agreed upon underneath the concession settlement.

Integration and Circularity

The community connection will probably be created to supply wastewater companies to Stage I of the brand new MBZ metropolis, including one other 46.5km to accomplished inner WWCN. Building of the pipeline community and MBZ pump station was accomplished in December 2018. The hydraulic, cost-effective technique for connecting town to TANQIA’s community required two pipelines, every 400mm in diameter and 11.25km in size.

TANQIA will present 1.3 billion gallons of high-quality effluent for EWE, as soon as the distribution community is accomplished. TANQIA makes a major environmental contribution, substituting high-quality effluent for desalinated and underground water. Revised Growth I of the WWCT System will produce tertiary handled effluent, appropriate for restricted irrigation and industrial makes use of. For unrestricted irrigation and particular industrial makes use of, the effluent should be additional handled.

EWE’s effluent steadiness tank will embody a distribution community to ship water to MBZ metropolis and farms within the northern space of the emirate. TANQIA insisted on having a sharpening plant to make the effluent appropriate for unrestricted irrigation. This choice was made by TANQIA following the suggestions and requirements of the WHO, and supportive information on the expertise of California concerning unrestricted irrigation.

Table 1

Desk 1

TANQIA Inexperienced Vitality Tasks

TANQIA explored a number of energy-efficient and inexperienced power tasks together with Revised Growth I to spice up sustainability and supply energy- and cost-saving alternatives.

TANQIA believes that utility-led innovation is vital to enabling an period of sustainable wastewater. To foster a tradition of innovation, TANQIA is articulating new values, investing in new processes, and searching for broad stakeholder engagement. The photo voltaic power venture about to be applied in Fujairah is an instance of its motion in the direction of sustainability.

Photo voltaic Vitality

TANQIA’s photo voltaic initiative is comprised of two phases. Stage 1 is a 422kWp rooftop photo voltaic PV system that’s anticipated to cowl greater than 56 p.c of annual constructing power necessities. Stage 2 is a 6.17 MWp photo voltaic farm that’s anticipated to cowl 107 p.c of common annual power necessities of WWTP in its entirety. In different phrases, it covers 30 p.c of WWTP’s power necessities in the course of the sunshine interval, and permits for the technology of revenues by exchanging low cost energy from the remaining 70 p.c to different industries throughout off-peak intervals.

Work on Stage 1 is predicted to begin by This fall this 12 months, and work on Stage 2 by Q2 2023. As soon as accomplished, the brand new additions are anticipated to ship good points by decreasing operational value. TANQIA’s inexperienced power venture will cut back the carbon footprint by about 6,061 tonnes of CO2 every year. Such a discount in greenhouse gases is equal to that of 1,543 vehicles pushed for a full 12 months, or these generated yearly by the electrical energy consumption of 1,209 properties. This can be a discount in carbon footprint of 224,791 tonnes of carbon dioxide over 32 years — till 2052, the top of the concession interval.

TANQIA’s dedication to the surroundings continues with the set up of the PV photo voltaic farm with a producing capability of 24.7 MW. Electrical energy demand escalates in tandem with wastewater technology. The utility maintains its dedication to being environmentally pleasant in all its operations, serving to to fulfil the UAE’s obligations underneath the Paris Accord.

Therapy of Digested Sludge

The federal government of Fujairah agreed to eliminate sludge generated by the remedy course of at designated landfill websites. Just lately, nonetheless, an initiative by the UAE Minister of Infrastructure and Petroleum, his excellency Sohail Bin Mohamed Al Mazroui, known as for sludge to be reused as fertilizer or as an alternative to fossil fuels in combustion processes.

Each disposal paths require additional sludge remedy, involving a remaining drying course of. Obtainable applied sciences are being reviewed when it comes to cost-benefit.

An extra possibility could be sludge incineration, which might addresses the difficulty of hint substances of rising concern (TSECs) — micropollutants comparable to heavy metals, microplastics, prescribed drugs, and hormones. Dried sludge might be offered to cement and metal factories as a supply of power, substituting for fossil gas sources.

UAE’s Dedication to the Paris Accord

TANQIA recognized measures to scale back its environmental and carbon footprint properly earlier than ratification of the Paris Accord. Graph I offers an summary of the carbon dioxide financial savings already applied, or scheduled for implementation.

13 measures have been recognized for the discount of CO2 emissions, a few of them efficiently applied previous to ratification of the Paris Settlement. Others have been applied after ratification, and contribute to emission reductions.

By the top of 2020, a complete of 52,879 tonnes of carbon dioxide had been saved. Measures recognized as having an important impression on TANQIA’s local weather safety efforts are a part of Revised Growth I. By the top of 2052, 1.56 million tonnes of CO2 can have been saved.

TANQIA: A Polished Strategy

TANQIA explores and pursues tasks past the UAE’s borders. The situations that TANQIA has insisted on is testomony to the agency’s continued emphasis on high quality, effectivity, and sustainability. This revolves round safety of the surroundings by way of pursual of least-cost as a precedence, together with efforts on plenty of sustainability initiatives.

In tasks throughout the Center East and the Mediterranean nations of the EU, TANQIA has insisted that no effluent could be discharged into deserts, rivers, lakes and seas until it had been handled as much as the tertiary stage, and that it could be polished.

The sharpening course of targets viruses, micro organism, and parasites, and includes the removing of suspended solids, organic oxygen demand and different traces of pollution which may be left after secondary remedy.

TANQIA’s principled strategy offers alternatives for reuse of the polished effluent for financial functions. The foremost obstacle to Gulf Area nations attaining this objective is the value of water and wastewater companies. Wastewater tariffs, as set by most Center Jap governments, are subsidised. There’s scope for the financial reuse of polished tertiary handled effluent that complies with essentially the most stringent requirements.

TANQIA has been engaged on an answer that reduces the price of sharpening effluent, and the price of remedy. This can require extra information assortment, inspecting the standard of output and power use per gallon of water, to find out the industrial potential.


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