Nutsch (tank) filters — typical usage:\nA Nutsch (tank) filter is best described as which of the following in industrial filtration practice?

Introduction / Context:
Nutsch (tank) filters are widely used in fine chemicals and pharmaceuticals where contained, batch solid–liquid separation is required. They consist of a perforated plate supporting a filter medium inside a tank, with options for vacuum or pressure assist and features like heel removal and cake washing.

Given Data / Assumptions:

• Focus is on operational mode (batch vs continuous) and typical scale of use.
• Generic Nutsch configuration (not agitated Nutsch dryer) is intended.

Concept / Approach:
Classic Nutsch filters operate in batch mode: charge slurry, drain/pressurise or apply vacuum, optionally wash the cake, then discharge. They are chosen for contained handling, product purity, and flexibility at small to moderate batch sizes—not for continuous, high-throughput service. Leaf filters and rotary drums/discs serve continuous duties, while high-pressure plate-and-frame or candle filters are different classes altogether.

Step-by-Step Solution:

Verification / Alternative check:
Equipment brochures describe Nutsch filters as batch vessels with options for pressure or vacuum, CIP, and GMP finishes—ideal for campaign production.

Why Other Options Are Wrong:

• Continuous high-pressure/rotary vacuum: different equipment classes.
• Leaf filter: a separate manifold type.
• “Only for > 60% solids”: incorrect; workable over a range of slurry solids.

Common Pitfalls:
Assuming “tank filter” implies gravity only; many operate with vacuum/pressure assist.

Final Answer:
A batch filter commonly used for small to moderate scale work