For over 30 years, THIOGUARD has led the industry in production and sales of magnesia specialty products. As the leader, THIOGUARD remains on the forefront of research and development of magnesia applications. Zinkans's Bio-Active manufacturing processes produce a superior, biologically receptive, mineral, nutrient and alkalinity source that makes it the product of choice for a diverse array of applications. Among these applications, Thioguard® has evolved to take wastewater treatment to new levels.


Thioguard® impacts all areas of a wastewater treatment system. The results are dramatic improvements in the way budget dollars are spent and aesthetic value of the treatment system as a whole.


FOG (Fat, Oil, Grease)
Air Relief

1. Increases wastewater  pH

2. Buffers long-range

3. Absorbs and complexes odor compounds

4. Facilitates chemical and biological breakdown of FOG

5. Minimizes gas evolution

6. Neutralizes acid/prevents corrosion

7. Reduces collection system gas binding

1. Reduced odors

2. Increased Surface pH

3. Reduced FOG accumulations

4. Decreased Pump Station runtimes

1. Odalogs

2. Surface pH paper

3. Visual Inspection

4. Pump out frequency

5. Air Relief Valve Discharge Volume and Frequency

1. 95% reduction

in odors

2. Surface pH >4

3. Minimal/No FOG

4. Reduced PS

Energy Costs

1. Customers can “dial in” the desired level of treatment

2. Best acid neutralization prevents premature infrastructure corrosion & replacement, adds numerous

3. Thioguard can reduce FOG related SSOs.

4. Thioguard can reduce pumping costs


BOD (Biological Oxygen Demand)

TSS (Total Suspended Solids)

NH3 (Ammonia)



1. Increases wastewater pH

2. Sustainable non-carbonate alkalinity

3. Provides nutrient enhancement for biological efficiency

4. Improves nitrification efficiency

1. Increased Bioreactor Aeration Basin pH

2. Increased Bioreactor Alkalinity

3. Lower SVI (Sludge Volume Index)

1. Basin pH profile

2. Soluble Alkalinity

3. Higher F/M (Food/Mass) Ratio

4. Lower Mixed Liquor

Suspended Solids

5. Blower Run Times

1. Increased Oxygen Uptake Rate

2. Lower Aeration Energy Costs

3. Lower SVI

4. Lower Solids Production

Thioguard is the only liquid phase treatment used in the collection system that can enhance the treatment process at the Wastewater Treatment Plant.



CH4 Methane Production

Enhanced Dewatering

1. Increases pH and buffering alkalinity

2. Stabilizes and enhances volatile acid and methane generation

1. Increased digester pH and alkalinity

2. Higher Alkalinity/Volatile Acid ratio

1. pH Meter

2. Alkalinity Titration

3. Volatile Acid Analysis

4. pH profile across process basins

1. Higher Digester Gas quantity and quality

2. Increased Digester Load Capacity

3. Lower Solids Disposal Costs

Thioguard added to the collection system or sludge digestion process can also help the digestion and dewatering processes at the Wastewater Treatment Plant





1. Increases pH and buffering alkalinity

2. Nutrient enhancement of Phosphorus uptake

1. Increased Biological Nutrient Removal pH and Alkalinity

2. Reduced Total Phosphorus and Nitrogen

1. pH Meter

2. Alkalinity Titration

3. Phosphorus and Nitrogen Balance

Improved Phosphorus uptake and condition for Phosphorus wasting OR recovery through side-stream treatments

Thioguard added at the plant or collection system is the only odor control strategy that can have positive influence on a BNR process.

 NOTE: Thioguard® is a Registered Trademark of Premeir Magnesia, LLC.

The use of Thioguard addresses a myriad of issues facing municipal wastewater systems today. Among these issues are system-wide H2S gas odors and corrosion, skyrocketing O&M, plant upsets and process inefficiency. Thioguard uses unique methods for manufacturing its raw magnesia to create a product that has superior biological reactivity as a divalent cation, nutrient and alkalinity source. Available in Thioguard, this technology enables Zinkan to address the many areas of wastewater listed above.

Municipalities spend millions of dollars annually for wastewater piping and infrastructure on new construction, replacements and rehabilitation. Thioguard has been created to insure the engineered longevity of new concrete piping and infrastructure and to salvage and lengthen remaining life on existing piping and infrastructure. Thioguard accomplishes this life extension by attacking the primary culprit of sewer system degradation and premature failure, i.e., H2S gas corrosion. The result is money saved on the cost of replacing and repairing failed infrastructure by extension of depreciable life.

Thioguard further has the capability to improve the condition of the collection system; reducing H2S gas odors, SSO-causing grease build-up and emergency failure. Thioguard accomplishes this primarily by buffering pH at a prescribed range to optimally reduce grease build-up and H2S gas, both chemically and biologically. But Thioguard also uses ad/absorption mechanisms to further aid in sulfide reduction.

Because of the bioavailability of Mg+2 and OH-1 alkalinity, Thioguard is able to contribute substantially to the operational efficiency of wastewater treatment plants. Improvements to the monovalent/divalent (M/D) cation ratio lead ultimately to better solids removal and handling. The beneficial addition of Thioguard is reflected in improved clarification, BOD removal, DO demand, nitrification, disinfection, digestion, biosolids quality and more.

When investigated in its entirety, many of the problems experienced by wastewater managers can be linked to deficiencies in mineral, nutrients and alkalinity. There are dozens, if not hundreds, of products designed to treat many of these problems on an individual basis. Often, the implementation of one product to address a particular problem requires the implementation of additional products to address undesired results. Correcting all of these problems may be as simple as correcting the deficiencies addressed by Thioguard. Once the proper mineral, nutrient and alkalinity balance is obtained, supplemental additives can often be eliminated or at least minimized.