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Scottish Water Solutions installs Zickert™ Technology from HydroA Wastewater Case StudyProject Profile

ObjectiveTo increase primary sludge extraction and lower operating costs as part of a sensitive WWTW retrofit.

SolutionZickert™ sludge-scraping technology provides more effective and energy-efficient sludge removal within existing tank structure.

The first Scottish installation of innovative Zickert™ sludge treatment technology promises to increase primary sludge extraction and lower operating costs at a Lanarkshire waste water treatment works (WWTW).

Scottish Water Solutions (Solutions) is undertaking a major upgrade of the Hamilton WWTW, south of Glasgow, which serves a population of around 75,000. Following a rigorous procurement process, Zickert™ top and bottom sludge scraping equipment from Hydro was selected for a sensitive retrofit project to achieve more efficient removal of primary sludge.

The work included removal of the existing travelling bridge scrapers on four primary sludge settlement tanks which took screened raw sewage and discharged the effluent to secondary and tertiary treatment.

“We required a lightweight, energy efficient alternative to the existing equipment, and which could fit within the existing tanks,” commented Solutions Construction Manager Paul Sharp. “The tanks are around 40 years old, so we did not want to overstress them with heavy travelling bridges.

“Additionally, whole life costs are important and we need better sludge extraction and cleaner effluent than alternatives, such as bridge refurbishment, would be able to deliver. We chose the Zickert™ equipment after a rigorous procurement process as it meets all our requirements.”

The Zickert™ sludge scraping equipment is designed to extract up to 2,220,000 litres of 1.5-3% dry solids thickened sludge a day for additional treatment and dewatering. High extraction rates enable downstream effluent treatment to be more efficient and to discharge a higher quality final product.

Product Profile

• Lower operating and infrastructure costs• Higher yield of sludge• For odour control the low profile reduces the volume of air to

be treated, reducing energy costs• Higher throughput reduces the amount of secondary treatment

required

Find out more at: www.hydro-int.com

“Additionally, whole life costs are important and we need better sludge extraction and cleaner effluent than

alternatives, such as bridge refurbishment, would be able to deliver. We chose the Zickert™ equipment after a rigorous

procurement process as it meets all our requirements.”

Paul Sharp - Construction ManagerSolutions

Turning Water Around...®

Wastewater SolutionsHydro International. Prickwillow Road, Ely Cambridgeshire, CB7 4TXTel: 01353 645700 Fax: 01353 645702Email: enquiries@hydro-int.com Web: www.hydro-int.comZickert Case Study - Hamilton WWTW A1012

HX is Hydro Experience, it is the essence of Hydro; a stamp of quality and a mark of our commitment.For further information call us on: 01353 645700or visit www.hydro-int.com

Zickert™ Bottom Sludge Scraper

The Zickert™ sludge scraper has a low-profile design specially designed for continuous transportation of sludge with a gentle action which yields higher volumes of sludge than conventional systems at the primary treatment stage.

The lightweight, energy efficient Zickert™ units can help to deliver lower through-life costs. The very small footprint is suitable for space constrained installations.

In addition to the supply of new equipment, Hydro’s expert service teams provide plant condition assessment and planned maintenance programmes for our wide range of water and wastewater treatment equipment through tailored Service Agreements to meet the needs of each site.

Hydro maintains a comprehensive and well-managed store of spares for all its equipment. Hydro’s customers can be assured of speedy delivery of plant, helping to reduce the time our customers need to spend sourcing replacement parts.

To enable wastewater and water treatment operators to avoid interruption to their processes during planned downtime, Hydro offers a full equipment hire service for a wide range of primary, secondary and tertiary treatment plant, which can be operated on a stand-alone basis or integrated with existing equipment.