The Garden Sewage Treatment Works

Sewage over pumping works as part of maintenance works.

WJ Saudi undertook sewage over pumping works as part of maintenance works at The Gardens Sewage Treatment Works in Dubai.

WJ were contracted by Hydrojet to divert incoming mains sewage from the works inlet to the neighbouring aeration tanks whilst they carried out maintenance works at the pumping station for Nakheel.

WJ installed a high performance overpumping system using two of its high capacity 400 l/s diesel suction pumps and HDPE suction and discharge lines that took sewage from the inlet chamber and distributed flows evenly between 4 no. aeration tanks. The pumps used were brand new, ultra-efficient BBA BA300k sewage pumps. They are specifically designed to handle sewage with a semi-open impeller design capable of handling solids up to 100mm. A key selling point to Hydrojet was that the pumps used nearly half the fuel consumption of those offered by other dewatering contractors which helped to reduce their costs. Further details of the pumps used can be found on technical specifications download page. Due to the sensitive nature of pumping sewage we provided 100% spare pumping capacity to ensure continuous operation, along with electromagnetic flow meters and full time supervision to monitor system performance.

The project was a great success and WJ was impressed by the professionalism of Hydrojet and look forward to working with them again on future projects.

WJ Saudi has an extensive range of pumps and pipework and continues to expand its fleet or high capacity diesel and electric pumps. Contact us today to find out how WJ can assist you with your overpumping and diversion works.

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Engineered Solutions for Minimal Disruption

WJ offers engineered solutions that allow for the installation, operation, and shutdown of dewatering systems with minimal settlement and disruption to surrounding services and structures.

When groundwater problems arise, WJ is the company to call for innovative, practical, and reliable solutions. Partner with us for a world-class experience in dewatering and pumping.

Local and International Resources

Equipped with a large number of staff, cutting-edge equipment, and high-quality materials, WJ offers robust solutions backed by local and international resources. We adapt to the unique requirements of each project, ensuring success on a global scale.

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At our core, we are dedicated to providing exceptional service tailored to meet the diverse needs of our clients, ranging from straightforward residential dewatering solutions to the intricate demands of expansive national projects.

When it comes to large-scale national projects, we leverage our extensive experience and industry expertise to tackle intricate challenges head-on. Collaborating closely with clients, we develop strategic and customized solutions that not only meet but exceed expectations.

When designing dewatering systems, think backwards

An often overlooked aspect in dewatering system design is the safe shutdown and sealing at the end of a project. WJ adopts a unique approach, considering the project’s end before the beginning. Ultimately, the success of a basement project hinges on its dryness, aligning with its intended use, making the thoughtful conclusion of the dewatering system a pivotal factor in our methodology.

The level of allowed dampness varies based on the designated use of a space – a pump room may tolerate some, a car park less, while residential living or a library requires absolute dryness. When planning your dewatering, shoring, and waterproofing system, prioritise the client’s desired outcome. WJ frequently collaborates with consultants, shoring, and waterproofing contractors to ensure a viable and tailored solution that aligns precisely with the client’s expectations.

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Design Expertise

As co-authors of CIRIA C750 Groundwater Control: Design and Practice, we take pride in our extensive design capabilities. Our proficiency extends to 2D and 3D computer modeling, ensuring precision and effectiveness in crafting dewatering solutions tailored to your project's unique requirements.

Pumping Tests

Conducting thorough pumping tests allows us to intimately understand site conditions, providing valuable data for cost-effective installations and optimised program timelines. This not only reduces operating costs but also validates the original design, instilling extra confidence in both budgets and project timelines. Our commitment to comprehensive site understanding sets us apart in delivering efficient and reliable solutions.

Our Expert Optimisation Techniques

In the pursuit of optimal dewatering solutions, we implement a spectrum of sophisticated techniques. Empirical optimisation, grounded in extensive experience and industry-established 'rules of thumb,' enables the fine-tuning of dewatering systems. Observational optimisation relies on on-site observations, particularly monitoring drawdown versus flow, providing invaluable insights for troubleshooting when ground conditions deviate from expectations.

Analytical optimisation employs precise analytical equations to estimate essential parameters for system design. Furthermore, numerical optimisation harnesses available data to populate intricate 2D and 3D models, facilitating a comprehensive analysis through a series of refined and simplified techniques. This comprehensive and strategic approach ensures the customisation of solutions tailored to the distinct requirements of each project, reflecting our commitment to professionalism and excellence..

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Get in touch with WJ for expert pump rental services and professional dewatering solutions.