Wastewater Treatment & Collection Structure Projects 

Xypex products play a key role in the prevention and treatment of problems common to the sanitary sewer collection system and the wastewater treatment plant.

Project Listing
  • Prague Sewer Rehabilitation

    Prague, Czech Republic

    The use of Xypex in the grout extends the life of the grout while reducing the potential for leakage into and out of the tunnels through any cracks that could develop in the grout behind the brick liner. To date, more than 8,000 tons of Injektostop grout containing Xypex Admix C-1000 NF has been used to repair and extend the life of Prague’s brick sewer lines (fig 11). In 2013, Prague was again flooded, although not to the same extent as the devastating 2002 flood when the flow rate on the Vltava River reached more than 5,000 m3/s.
  • Blacklick Creek Sanitary Interceptor Sewer

    Columbus, Ohio, USA

    “The addition of Xypex Admix to protect precast concrete structures such as tunnel segments is a great example of how projects can offsite certain construction steps and save time and labor,” says Bradford-Dice. “Xypex Admix not only replaces other types of waterproofing such as membranes and coatings, but also provides protection against microbial induced corrosion so common and potentially damaging in sewer structures.”
  • Prague Sewer Protection

    Ďáblice, Prague, Czech Republic

    “These structures are designed to last 100 years,” Mandelik notes. “Xypex Crystalline Technology has been in use for more than 50 years on projects like this around the world. Engineers, contractors, architects and applicators specify Xypex because it can enhance the longevity of almost any project involving concrete structures.”
  • Largo Wastewater Treatment Plant

    Florida, USA

    The concrete structures found in most wastewater treatment plants are subject to some of the harshest environments imaginable, including abrasion erosion, chemical attack, chloride ion-induced corrosion, freeze-thaw conditions, and microbiologically induced corrosion (MIC). Large cracks were power-chiseled to create a space to accept a dry-pack of Megamix II with Bio-San, which was then covered with a top coat of Megamix II with Bio-San. The Xypex repair mortar can be applied via sprayer or trowel at a thickness of 3/8 to 2 inches. It must be applied to a surface in saturated surface dry (SSD) condition (fig 7). 
  • Meixinda Sewage Plant

    Huzhou City, Zhejiang Province, China

    Meixinda sewage tank is an internal sewage treatment tank independently equipped by Zhejiang Huzhou. After years of use, the tank body became damaged and corroded and the leaking internal pools could no longer meet sewage treatment requirements. Xypex Patch’n Plug was used to repair damaged areas and Xypex Concentrate provided waterproofing and corrosion protection of the entire pool body. The project is the first to meet zero-emission standards for printing and dyeing enterprises in Zhejiang Province.
  • Sanitation Wet Well Manholes Resurfacing

    Murphys, California, USA

    Xypex Bio-San C500 was specified for the waterproofing and microbial induced corrosion protection of two pump station wet wells. However, there were a number of precast units that were inadvertently dosed with Xypex Admix C-500 in place of the Bio-San C500. To ensure the protection from MIC, Xypex Megamix II with Bio-San was subsequently applied to the interior surface of these precast units at a 3/4” thickness. A total of 120 - 55 lbs bags of Megamix II with Bio-San were utilized. For those units that were dosed with Bio-San C500, a total of 150 lbs of the Bio-San C500 additive was incorporated into the concrete for the wet well lids, thus providing the requisite waterproofing and MIC protection. 

    Blackwater Engineers were satisfied with the concrete’s long-term protection that included a combination of Admix C-500, Megamix II + Bio-San and Bio-San C500.
  • Bunge Manholes

    Morristown, Indiana, USA

    Rinker Material made 5 manholes (48”) and one manhole (84”) with Xypex Bio-San C500 at a 1% percent dosage rate to provide protection from microbial induced corrosion. These manholes will be incorporated into a factory’s wastewater treatment system of a manufacturer of corn syrup, soybeans, oil and bio-diesel. The Megamix II with Bio-San was also utilized for filling mortar joints of the precast manhole segments. Bio-San C500 was dosed also in the concrete bench located at the bottom of the manhole.
  • Pinckney Force-Main & Pump Station Replacement

    Pinckney, Michigan, USA

    This project involves two separate structures; a precast force-main & a cast-in-place pump station / wet well. Wolverine Engineers & Surveyors Inc. specified Xypex Bio-San C500 to provide the required antimicrobial protection. The pipe section involved 30 yd3 (23 m3) of concrete; Northern Concrete Pipe dosed Bio-San C500 in the precast concrete at 7 lb. per yd3 (2.4 / m3). Superior Ready Mix dosed the Bio-San C500 for the 60 yd3 (46 m3) of concrete for the cast-in-place pump station, utilizing 420 lb (190 kg). Non-critical areas of the wet-well not exposed to MIC were treated with Xypex Admix C-1000. The fact that Bio-San C500 contains a “field detection colorant” in the concrete treated with Bio-San is a valued quality assurance measure.
  • Maurice Wastewater Sludge Holding Tank

    Maurice, Louisiana, USA

    The Maurice WWTP’s expansion project included the construction of an aerated sludge holding tank within the grit chamber. Xypex Bio-San C500 was incorporated into the concrete to provide waterproofing, chemical and antimicrobial induced corrosion protection. Over 1,300 lbs of Bio-San C500 was dosed at 1% of the cementitious content of the concrete totalling 250 yd3.
  • Largo Clarifier Rehabilitation

    Clearwater, Florida, USA

    The clarifiers showed significant concrete deterioration from MIC. This environment is subjected to high H2S conditions that contributed to the significant deterioration. Over 600 ft2 of the concrete in the clarifiers were repaired and resurfaced utilizing over 4,400 lbs of Megamix II with Bio-San. Concrete coverage was obtained in areas deteriorated more than 1”, thus providing needed concrete cover to protect the reinforcing steel. The application thickness ranged from ½” up to 2” in some areas. In addition, Megamix II with Bio-San provides waterproofing benefits along with the antimicrobial protection of the structures from MIC.
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