Sludge Silos
APRO Industrie’s sludge silos provide a reliable and efficient solution for storing sludge generated during municipal and industrial wastewater treatment processes. We offer sludge silo capacities ranging from 5 m³ to 10,000 m³, suitable for a wide range of sludge types, including liquid sludge, dewatered sludge and sewage sludge, produced by wastewater treatment plants.
- Fast and easy installation
- Exceptional service life of up to 50 years
- Modular structure that can be dismantled and extended
- Optional cover for odour control
- Resistant to alkaline environments generated during lime stabilisation processes
What Is a Sludge Silo?
A sludge silo is an industrial storage structure designed to hold organic or mineral sludge, including sewage sludge and dewatered sludge, prior to treatment, disposal or reuse. Sludge silos are used across wastewater treatment plants (WWTP) and industrial facilities, and can be equipped with dedicated handling and discharge systems depending on the type of sludge and its intended application, such as screw conveyors, silo discharge systems, or sliding frame mechanisms.
Specific Features of Organic and Mineral Sludge Storage Tanks
The selection of a sludge storage tank depends primarily on the physical and chemical characteristics of the sludge. For wastewater treatment plant (WWTP) applications, specialised sludge silos are required due to biological activity, fermentation processes and the presence of hydrogen sulphide (H₂S). Stainless steel tanks or silos are often preferred in these applications for their corrosion resistance. Sludge silos for mineral sludge have different characteristics and require a distinct approach, notably regarding silo discharge methods and compatibility with screw conveyors.
Equipment and Accessories for Sludge Silos
Each sludge storage tank can be equipped with a range of accessories, such as agitators, pumps, screw conveyors, guide bars, sliding frame discharge systems, strainers, and covers for odour control if necessary. These features ensure efficient sludge storage management and facilitate sludge handling, transfer and disposal operations while improving operational efficiency.
Do you have a project?
Are you working on a project that requires the installation of a sludge silo? Contact our team for personalised advice!
FAQs - Sludge Storage Tanks
Here’s an overview of key points regarding sludge tanks to address frequently asked questions.
What storage capacities are available for sludge tanks?
APRO Industrie sludge storage tanks are available in capacities ranging from 5 m³ to 10,000 m³, meeting requirements for both small installations and large industrial sites.
How does a sludge storage tank operate?
A storage tank operates as an integrated system, comprising a main structure, specialised coatings, and auxiliary equipment (agitators, pumps, odor treatment systems) to ensure optimal management of the stored sludge.
What maintenance is required for a sludge storage tank?
Regular maintenance includes inspecting coatings, checking joints, monitoring agitation and pumping equipment, and servicing any odour control systems. Maintenance is recommended every 2 to 3 years.
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