Category Archives: News

The purchase price of a filter press is paid once, but the wash cycle is paid for on every batch. This post explains why two-sided cake geometry limits filter press washing efficiency, what that costs in wash water, cycle time, and labor, and how to measure it before it shapes your next equipment decision.

Filter press, vacuum belt filter, and rotary pressure filter get compared constantly, and searches for “belt filter press” often blur two different technologies. This post defines each one clearly, compares them on the factors that drive a specification decision, and shows where BHS's testing lab fits into making that call.

Cycle time and wash consumption only tell part of the story. This post breaks down the labor, unplanned downtime, and yield loss that build up around a batch filter press, why those costs rarely appear in a capital equipment comparison, and how testing puts a real number on them.

Specifying a filtration system for a new process line starts long before anyone chooses a technology. This post walks through the process characterization, testing, and validation steps that produce a spec engineers can defend in a capital project review, including what a good test report contains and when pilot testing earns its cost.

Running a pilot test is a significant investment of time, feed material, and personnel, and the value of the data it produces depends entirely on how well the test was planned. This post walks through the objectives, planning, safety, and data collection steps that separate a pilot test that supports a confident scale-up decision from one that raises more questions than it answers.

Selecting filtration equipment without process-specific test data is one of the most reliable ways to introduce scale-up risk into a capital project. This post explains what bench-scale filtration testing covers, how written test reports support equipment selection and process design, and how BHS Filtration's Charlotte-based lab supports process development from bench to full-scale plant.

Chemical and pharmaceutical plants running batch filtration at high throughput often discover the process creates more problems than it solves. This post walks through the operational signals that indicate a conversion to continuous solid-liquid separation is warranted, what to evaluate before committing, and how BHS supports the transition.

Filter presses have been a fixture in industrial solid-liquid separation for decades. They remain a legitimate choice for many applications. But understanding where filter press filtration performs well, and where it does not, is what allows process engineers to make the right equipment decision the first time.

Filtration performance isn’t defined at commissioning; it’s proven over decades of changing feedstocks, tighter purity targets, capacity increases, and unexpected process upsets. The right equipment matters, but the right partner matters more.

Benchtop and pilot testing are essential steps in industrial filtration projects, but only when they’re designed with full-scale operation in mind. This article outlines the most common pitfalls in lab- and pilot-scale solid-liquid filtration testing and the practical best practices that help ensure your data is reliable, repeatable, and truly scalable.