FOG Pretreatment

About Grease Separator Testing Methods:  North American and European Standards

Did you know the North American and European testing standards for certifying grease separators have nothing in common literally?

One is predominately a performance standard, a batch flow test simulating kitchen sink discharge. The other is mostly a design standard, a continuous flow test simulating floor drains receiving oily water flows. 

Both tests become more difficult to pass with higher flow rates. As a manufacturer, we respect the local codes and standards.  It is why we test our products to all applicable standards.

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A Two-Pronged Approach to Pretreatment Saved Lawrence & Memorial Hospital Thousands

Lawrence & Memorial HospitalHospitals and other health care facilities often operate extensive commercial kitchens. But unlike restaurants, hotels and other foodservice establishments, hospitals face additional cost-control, sanitation and operational challenges.

They have one or more commercial kitchens that may feed effluent into plumbing systems that run for hundreds or thousands of feet before exiting the building. 

Hospitals also operate on a 24/7 basis, requiring them to keep downtime to a minimum. They don’t close for holidays, and their kitchens must keep operating matter what.

These factors mean that hospitals face unique pretreatment challenges. Facility managers and engineers must carefully consider their pretreatment technology, or risk high-cost repairs and even breakdowns that could threaten the health of patients and workers.

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The Curious Case of the Smelly Blob

I’m not fond of unsolved mysteries. When a service contractor stumped us with a problem in the late 1990s, the issue nagged at me.

The contractor told us about gelatinous masses building up in a handful of grease separators. The masses smelled terrible, he said, and the separators had surprisingly low water input flows.

We tried figuring out what the gel was. We ran tests in our lab. We looked online. We consulted wastewater treatment professionals and scientists. We couldn’t come up with anything.

Whenever I thought about the gel, I kept picturing the monster from the 1958 cinematic classic, The Blob.

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The Science That Saved Septic Fields

Each state has its own unique environmental challenges and aims. You learn a lot by attending state conferences.

 

I recall a trip to the Florida Department of Health Conference in 1986 or 1987 when the buzz was about a growing set of research on extending lifespans of septic fields for rural food service establishments (restaurants, schools, other premises with commercial kitchens). This work remains vital to rural communities to this day.

 

Damann L. Anderson and his team at the University of Wisconsin in Madison were leaders in this area. In the ‘70s and ‘80s, they focused on the nutrient loading effect on septic field lifespans. Septic field failure occurs when a septic field no longer properly absorbs effluent. Instead, the water ponds at the surface, a public health hazard.

 

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Hydrogen Sulfide: The Bad Smell That’s So Much Worse For Your Business

As if running a business isn’t challenging enough in the current economic climate, an invisible fallout from the pandemic may be lurking in the pipes beneath hotels and restaurants. And it really stinks. 

That offensive rotten-egg smell signals the presence of hydrogen sulfide creeping up from the grease interceptor into your business. During the pandemic, we’ve had calls from clients asking about the smell, and their stories offer a helpful heads-up for all of us. 

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New drawings place Trapzilla in vehicle traffic areas

Delivery truckWhat is your plan when a city official, contractor, or engineer says a 1,000-gallon grease interceptor must be installed in your drive-through, parking lot, or another area where vehicles will be driving over it every day? 

Trying to comply with local codes and regulations shouldn’t be difficult. You shouldn’t have to use all your resources to engineer, install, and maintain a grease trap. It should be easier and more affordable. 

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How commercial kitchens can manage grease from rotisserie ovens

rotisserie chickens in ovenRotisserie chicken ovens have been steadily gaining popularity in commercial kitchens since 1985, when Boston Market first introduced them to the restaurant industry. Today, more than 750 million rotisserie chickens are sold every year in grocery stores, club stores and food-service outlets.

While the slow-cooked birds are a smart choice for retailers, the grease they generate can present a challenge for commercial kitchen owners and for municipal water treatment systems.

What options do kitchen operators have to ensure they still comply with municipal pretreatment and plumbing codes?

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How grease interceptors can reduce greenhouse gases


earth from outer spaceCommercial kitchen operators already know the benefits of using grease interceptors to capture used oil and grease -- cleaner sewage systems, reduced costs for wastewater treatment plants and fewer fines from municipalities.

Plus, you can protect your facility's interior plumbing and make a little extra money selling used cooking oil to recyclers.

But did you know that by capturing all that grease you're also helping cut greenhouse gas emissions?

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How a simple kitchen device protects waterways and sewer systems

Food in sinkWhen it comes to disposing of food waste, which works best for commercial kitchens and our waterways – garbage disposals or strainers?

At first glance, a garbage disposal might seem like the easiest choice – just flip a switch and the food is gone. No scraps to throw away. What could be simpler? Plus, you keep waste out of the landfill.

However, food scraps that enter the wastewater treatment system can cause problems with our municipal sewer systems. 

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