Piper Environmental Group, Inc.

Ozone Systems for Municipal Drinking Water, Waste Water, Water Reuse and Aquifer Recharge - Water and Wastewater

Piper Environmental Group, Inc. has partnered with Primozone Production AB in Löddeköpinge, Sweden for our municipal, groundwater, and wastewater applications. Our successful installations since 2015 have made our choice an obvious one. Primozone’s applications are in 30 countries worldwide, with documented OPEX (Operating Expense) savings that are key for companies and utilities who truly believe in a low carbon footprint, sustainability, and reducing their operating costs in maintenance, electricity and oxygen consumption.

Primozone ozone generators are NEW TECHNOLOGY. Cold plasma ozone generation with ozone cells made of stainless steel and aluminum mean no maintenance and definitely no glass dielectric cleaning, breakage, fuses, and spacer removal and replacement. Our favorite features are:

  • Variable high concentration, (although we commonly run at 17% concentration by weight) and the modular design. Utilizing the high concentration not only improves results, it also reduces the oxygen consumption. Therefore when using LOX, cost savings can be significant or if using air compressors and oxygen generators, they are downsized. Both options greatly reduce the OPEX (operating expenses).
  • Modular design ensures that only generators that are required are utilized, saving both electricity and oxygen. In the past, oxygen continued to run at specific design flowrates, regardless of the percent output. Primozone allows generators to cycle on as needed in the process.
  • Variable output is controlled differently with Primozone ozone generators. If operating at 50% output, not only does the electrical consumption decrease linearly, but the oxygen feed gas also decreases linearly so there is a direct correlation.

As our surface water supply becomes increasingly polluted and difficult to treat, the use of groundwater will continue to increase. Unfortunately, even aquifers are polluted. <<>> Every day, 80 billion gallons of water is withdrawn from aquifers for a variety of uses, including human consumption. Ninety (90) percent of the fresh water supply is underground, yet only 20 percent of the water used is from groundwater, with the majority from surface water.

Small community water treatment operators, limited in resources and finances necessary to meet the EPA’s stringent and ever changing Surface Water Treatment Rule, are leading the way towards increased use of ground water.

Groundwater is renewable and reliable when used appropriately. Deep-drilled wells can recharge themselves, providing a steady supply of water that will not fluctuate with atmospheric changes.  As ground water moves downward to aquifers, it dissolves minerals it contacts. Those dissolved minerals give groundwater its chemical character and quality.

Some undesirable qualities such as dissolved organics, tannins, iron, manganese, or sulfides, can cause aesthetic problems such as staining, color, or odor. Other compounds like arsenic, cyanide, or nitrites can have serious health implications and may require additional available methodologies to assist removal with ozone.

In small community water treatment systems, ozone is increasingly being used as a chemical oxidant in the early stages of water treatment to oxidize organic and inorganic contaminants. Ozone works faster than any other oxidant currently used in water treatment and results in the formation of fewer undesirable byproducts.

Many organics will be completely oxidized, while in-organics readily precipitate for simple filtration. The oxidation of organic compounds can lead to many benefits including color removal, taste, odor, and algae control. If membrane filtration is used as the primary treatment option, partial oxidation of organics can result in micro flocculation aiding filtration of compounds that can lead to THM formation.

Pre-treatment with ozone will enhance feed water quality to your filtration membranes, allowing for longer filter life and superior product water. Even with increased awareness of ozone as a viable groundwater treatment alternative, few manufacturers are capable of offering expert sizing assistance, engineering, and technical support necessary to design and size the proper ozone system to fit your needs.

Many plant operators have been unable to keep up with the myriad of changes brought about by industry growth. Piper Environmental Group, Inc., has utilized ozone since 1993 with demonstrated success in providing service and application expertise to a wide range of industries

Ozone Advantages

  • Micro Pollutants
  • Moves easily through soil
  • 12 times more soluble than oxygen in water
  • Rapid oxidation
  • Decomposition leads to oxygenation and biostimulation (for aerobically degradable compounds)
  • Ozone is produced on site from just air and electricity, eliminating the need for hazardous chemical transportation and storage

Effective Treatment for:

  • Micro Pollutants
  • Saturated Hydrocarbons:
    • Chlorinated alkenes
    • Tetrachloroethelyene (PCE)
    • Trichloroethylene (TCE)
    • Cis-1,2 Dichloroethylene (cis-DCE)
    • Vinyl chloride (VC)
    • Chlorinated alkanes
    • Mineral oil
    • Trichloroethane
    • Dichloroethane
    • Tetrachloroethane
    • Ethers and alcohols: MTBE, ETBE, TAME, TBA
    • Unsaturated hydrocarbons
    • Cyanide
  • Monocyclic Aromatic Hydrocarbons:
    • BTEX
    • (chloro)phenols (PCP)
    • Chlorobenzenes
    • TNT, RDX and derivatives, nitro-amines
    • Polycyclic Aromatic Hydrocarbons (PAH)
    • Polychlorinated biphenyls (PCBs) and pesticides (DDT, DDE, DDD)
    • Insecticides
  • Gasoline and Diesel Fuel (TPHg TPHd)
  • VOCs