A Brief Introduction to Vacuum Filtration
Introduction of vacuum filtration
Filtration is a technique used to separate a solid from a liquid and is used in many experiments. Though filtration can be done simply with gravity, more often vacuum filtration is employed because it is much faster. HAWACH is home to two different kinds of vacuum filtration: a vacuum device (including glass and stainless steel) and a vacuum pump(Standard Diaphragm Vacuum Pump, Anti-Corrosion Vacuum Pump)
Vacuum filtration is one of the most widely used filtration methods in theory and practice. It is a method for dehydrating wastewater sludge by utilizing the pressure difference between the atmosphere and the vacuum.
As with other filter cake filtration methods, vacuum filtration techniques also use a porous filter media to support the filter cake. The difference is that vacuum filtration uses less propulsion and is, therefore, suitable for some special applications.
Working process of Vacuum filtration
Vacuum filtration is a continuous filtration operation for sludge dewatering, typically done in a cylindrical drum filter. The filter medium covered on the drum may be a natural fabric, a synthetic fiber product, or a wire mesh.
The drum is placed horizontally above the sludge tank and partially immersed in the tank. When the drum rotates slowly, a part of the circumference of the drum receives an internal vacuum, and the sludge is sucked onto the filter medium, the moisture in the sludge is sucked out during the rotation, and the dewatered cake is scraped off.
Usually, in order to achieve a good processing capacity of the vacuum filter, the wet sludge needs to be conditioned.
HAWACH and its core principles
HAWACH’s focus to become the BEST they can revolve around its 4 CORE PRINCIPLES. They are TRUST, ANTICIPATE, KNOWLEDGE, and CUSTOMER FIRST. Trust means an unwavering commitment to our customers and colleagues to provide the best value for products and services in the industry.
Anticipate: we keep customers’ needs in mind and make their complete satisfaction.
Knowledge: its commitment to acquiring knowledge of its products through training, continuing education, and best practice sharing.
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