News from Schwing Bioset

Feeling Green: Biosolids 101

Can you imagine living in a world where all of our raw sewage is dumped directly into rivers, lakes, or bays? What would that mean for your next fishing trip, your next family vacation to the ocean, or your next hot summer day spent splashing around in the local lake or creek?

Many of us don’t need to use much imagination to picture this scenario, because it wasn’t so very long ago that this careless sewage dumping happened in thousands of cities across America. According to the EPA, it was just thirty years ago that sewage made a one-way, non-stop trip to the water surrounding us.

My, how far we’ve come.

Today, thanks to vast improvements in wastewater treatment processes, American waterways are no longer the dumping grounds that they once were. Advanced wastewater treatment makes our waterways more hospitable to swimmers (both human and aquatic), and it also produces one very green side effect: biosolids.

As defined by the EPA, biosolids are “the nutrient-rich organic materials resulting from the treatment of sewage sludge.”

Sewage sludge isn’t very useful on its own, but once it is turned into biosolids, its potential is nothing short of extraordinary. Biosolids can be recycled and turned into super-powered fertilizer, which can be applied to land used for growing food. Today, roughly half of biosolids produced in the United States are being applied to land to beneficially improve soils. That’s a lot of recycled waste!

The EPA uses strict criteria and guidelines to ensure that biosolids are used safely. Thanks to these regulations and reliable, efficient biosolid processing systems like the Schwing Bioset process, raw sewage can be part of the ever-increasing green movement. Who knew poo could be as trendy as a canvas grocery bag?

canvas grocery bag

Tags: Biosolids, Wastewater Treatment, Schwing Bioset Process, Fertilizer, Recycled Waste

The Biosolid Journey

Somewhere, perhaps not far from where you are, biosolids are enriching soil and improving the land. Much of the biosolids produced in the United States are used to beneficially improve farmland, and biosolid application isn’t necessarily limited to agricultural use. Biosolids meeting the EPA’s criteria can be beneficially applied to forest land, reclamation sites, golf courses, public parks, roadsides, plant nurseries, and, in some cases, lawns and home gardens.

So biosolids can end up just about anywhere—but how do they get there? Biosolids result from the treatment and processing of sewage sludge. Biosolid processing can be a relatively simple process, especially when the right treatment system is put to work. Schwing Bioset has the treatment process down to a science, and many wastewater treatment plants prefer the Bioset process for its ease of operation, lack of dust and odor, minimal maintenance requirements, and low cost.

Systems like the Bioset process are able to turn sewage sludge into biosolids that meet the EPA’s criteria for ‘Class A’ biosolids. Class A biosolids are safe for land application—even land that is used to grow food. Once the biosolids have been treated and processed, they are ready to be put to use, enriching soil with necessary nutrients.

Sometimes biosolids are sprayed onto soil surfaces, and they can be tilled or injected into the land. In a liquid state, biosolids can be applied using tractors, tank wagons, irrigation systems, or special application vehicles. As a matter of fact, biosolid land application doesn’t differ too much from the application of limestone, animal manure or commercial fertilizers (but thanks to the treatment from systems like the Bioset process, biosolids don’t smell like animal manure!).

biosolid fertilizer

All across America, soil is being conditioned and fertilized by biosolids that began as sewage sludge.

What does your town do with its sewage?

Tags: Class 'A' Biosolids, Wastewater Treatment, Schwing Bioset Process, Fertilizer, Sewage Sludge

Biosolids Yield Happy Farmers & Happy Crops

In order to maintain your health, your doctor might recommend that you take a multivitamin.Biosolids act like a multivitamin for agricultural crops-and the result would make any nutritionist smile.

happy crops

Biosolids, like the ones processed using Schwing Bioset's advanced technology, can be applied as fertilizer to fields used for raising crops. According to the EPA, agricultural use of biosolids that meet strict quality criteria and application rates has been shown to produce significant improvements in crop growth and yield.

Why do biosolids make a difference for crops?

  • Biosolids are chock full of essential nutrients. Nutrients found in biosolids, such as nitrogen, phosphorus and potassium and trace elements such as calcium, copper, iron, magnesium, manganese, sulfur and zinc, are all necessary elements for crop production and growth.
  • Rejuvenation. The use of biosolids replenishes the organic matter that exists naturally in soil, but gets depleted over time with repetitive planting and harvesting cycles.
  • Moisture management. The organic matter improves soil structure by increasing the soil's ability to absorb and store moisture.
  • Defense. The organic nitrogen and phosphorous found in biosolids are used very efficiently by crops because these plant nutrients are released slowly throughout the growing season. This enables the crop to absorb these nutrients as the crop grows. This efficiency lessens the likelihood of groundwater pollution of nitrogen and phosphorous.
  • Environmental Friendliness. The application of biosolids reduces the need for chemical fertilizers.
  • The Bottom Line. Biosolids benefit farmers by reducing production costs.

Happy farmers, happy crops, happy-and-healthy-consumers. To learn more about how the Schwing Bioset process makes these valuable biosolids possible, contact Schwing Bioset.

Tags: Biosolids, Schwing Bioset Process, Fertilizer