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Looking At Progress From A Wide-Angle

All The Way To Al Madinah Al Munawarah


Building a culture with sustainable practices at its heart is the key for future success. Faced with massive sludge accumulation, unpleasant odors, and the inefficiency of existing sludge treatment system, Water General Directorate at Al-Madinah Al-Munawarah has entrusted K&A to develop a viable action plan that puts Al-Madinah Al-Munawara on the green track of sustainability.

To put an end to the long lasting problems generated by the current sludge treatment system, K&A launched a strategic green design for a Sludge Solar Drying System at Al-Madinah Al-Munawarah Sewage Treatment Plant. This is the first step in Al-Madinah Al-Munawarah becoming an eco-friendly green city capable of sustaining its water, solid and liquid wastes, and energy resources for future demand.

“Cities across the globe are now faced with the challenge of changing their operational practices to become more sustainable. It is time to think of sludge as a resource to be valued rather than waste to be disposed off” says Dr.Kahil, Project’s Manager. The negative impacts revealed while examining Al-Madinah Al-Munawarah existing sludge drying system such as improper environmental planning of lagoons, high volume of sludge accumulation sites, and the socio economic problems imposed around the area has inspired K&A to prepare a sustainable, automated, and reliable system that will span into the future at its core. This includes managing the accumulated sludge in lagoons as the well as the discharges of the under construction and future extension of the existing Sewage Treatment Plant.

A full system has been conceived and developed by K&A that features clean and renewable energy by turning current sludge into bio-solids which will be bagged and used in industrial and agricultural fields.

“It is time to think of sludge as a resource to be valued rather than waste to be disposed off” Dr. Maher Kahil – Senior Manager – Water Treatment

The system is based on the principles of exchanging heat and energy in green house transparent buildings until sludge is stabilized and had become fully compatible with EPA environmental provisions and laws. This is achieved through a long process including raising solid contents using gravity thickeners and sludge centrifuges dewatering machines, rotating scrappers to turn and ensure uniform drying of sludge, and finally monitoring the interior and exterior air environments using recycling fans to reach maximum operating conditions. The result? No more unpleasant odor, less maintenance, higher loading efficiency in terms of sludge quantity, “Class B” quality, and most importantly a green clean view. This is all highly environmentally and economically significant as the system will be able to treat an impressive 100,000 ton/year of sludge.
Finally the dream of having a greener Madinah is becoming a reality.

The proposed sludge solar treatment system will cost $40 million and will reach completion at the beginning of 2017. When it is finished, Al-Madinah Al-Munawarah is set to inspire KSA’s next big green change.