Aeration

Whether surface and subsurface, aeration systems are intended to transfer oxygen from the gas phase (air above the water surface), into the wastewater either by creating interfacial surface area across which oxygen pass, or by directly injecting air bubbles into the water in an effort to increase the dissolved oxygen levels of the liquid. The purpose being to have a direct oxidative effect on contaminants, or more often to provide additional dissolved oxygen to a biological process that benefits from it. Aeration can have a very positive effect on many wastewater characteristics such as BOD levels, H₂S levels, TOC levels and more.

BOD/COD Removal

While prominent in industrial wastewaters like those found in Food & Beverage, Biological and Chemical Oxygen Demand (BOD & COD) can be a challenge anytime there are significant carbon sources. Treatment approaches are many, and selection depends on the form and quantity of the carbon source, the gal/day of wastewater to be treated, and the limits to which it needs to be reduced. This is an area of technology development that has grown and diversified rapidly in the past 10-15 years, and we have access to technologies you are probably familiar with and others we are sure you are not.

Clarification & Sedimentation

Sedimentation is technically a process whereby suspended solids are gravity settled in a (still/quiet) tank, whereas Clarification is understood to involve passive or active settling OR flotation. At their simplest, both are solid-liquid separation steps. Historically suspended solids whose density was greater than that of water were settled, whereas less dense solids were often floated. Today that’s a very general rule, as solid-liquid separation technologies now exist that offer excellent performance regardless of serious density consideration. We place solids contact clarifiers, DAFs, Disk Filters and UFs into clarification applications depending on the host of considerations unique to each project. Let us know what you need to accomplish and we’ll get you pointed in the best direction for you and your specific application.

Desalination

Desalination systems have become an essential technology in the fulfilling of freshwater supply requirements globally. As waster scarcity and climate change make freshwater availability more and more challenging, desalination systems are helping the world meet demand requirements. Desal systems utilize high-pressure pumps to force saltwater through RO membranes which allow the transfer of water through sub-micron pores while prevent salt impurities from passing, resulting in clean/salt-free water for use as drinking water or in manufacturing applications requiring high-purity water sources. Historically Desal systems had been unrealistically expensive to build and maintain for most companies and communities, though recent advances in system design, pumps and especially membrane materials/construction have made their consideration quite feasible. Let us know about your project and we will introduce you to one of our several Desal partners.

Disinfection

Disinfection can be accomplished by a number of chemical and non-chemical means including chlorination, ultraviolet treatment, peroxide treatment and ozonation to name the most common ones.

Heavy Metals

Metals and semimetals can be removed in so many different ways that it is truly a “devil is in the details” topic. Depending on flow, constituents of interest, required removal rate, reuse opportunities and a myriad of other considerations, we’ll help you select an ideal path forward. Whether chemical precipitation, ion exchange, bioaccumulation or another treatment approach, we’ll make sure all your project goals are considered en route to a situationally best practice for metals removal.

Hydrofluoric Acid Neutralization

Our partners have expertise in designing and manufacturing fluoride removal systems for the reduction of fluorine from wastewater sources including hydrofluoric acid, buffered oxide etches, ammonium bi-fluoride, fluorine scrubbers and more. While most systems for HF treatment tend to be small batch systems capable of handling a couple hundred GPD, we can also supply continuous-flow systems capable of handling 1 MGD or more.

Microplastics

Microplastics come in a wide variety of sizes and chemical compositions, and include fibers, flakes, foams and pellets; Mosaic has a variety of sub-5 µm filtration technologies capable of removing 95%+ of particulate microplastics.

Nutrients

Nitrogen and phosphorus from human waste and fertilizer runoff are the primary causes of eutrophication/algal blooms in surface and inland waters. Removal of TN and TP can take place via a number of treatment techniques depending on inleunt levent of each, wastewater flow and target effluent limits. As with most wastewater constituents, nutrient removal can be achieved through a number of biological, chemical and physical treatment techniques depending on the water characteristics and treatment requirements.

Pumps

We have pumps for almost every industrial application, from small-dose chem feed hose pumps to large volume vertical turbines. Call us for a quote and let us put our expertise to work for you.

• Chemical Feed
• Grinder
• High Pressure
• Peristaltic Hose
• Precision Metering
• Submersible
• Vertical Turbine

Recycle/Reuse

Decades of bad water management policies combined with manmade climate change stress have driven water supplies in the western US so low that more and more states are being forced to institute strict (radical?) water management policy. Whether driven by regulations or by enlightened corporate sustainability policies, the recycling and reusing of industrial wastewaters has become part of more than 70% of Mosaic treatment plant projects. Wastewaters can be treated to any level of cleanliness necessary, from irrigation-quality to ultra-pure, and Mosaic can provide support regardless of your starting water quality or final quality goals.

Reuse/recycle technologies:

• Evaporation/Distillation – some wastewaters are very challenging to treat and are sent to evaporators instead of a traditional chem/phys means of treatment. Even these waters can be sent to evaporators with distillation systems that can reclaim deionized water quality product.
• Media Filters – several filter types are available for tertiary filtration of treated wastewater, each capable of producing irrigation-quality waters as a result:
  • Cloth Disk Filters
  • Multimedia Filters
  • Sand Filters
• Membrane Treatment (MBR/MBBR/MF, UF, NF, RO)
  • MBR/MBBR – High BOD/COD waters can be treated biologically with membrane systems resulting in reuse-quality water.
  • Compared to Microfiltration (MF), Ultrafiltration (UF), Nanofiltration (NF), and Reverse Osmosis (RO) are all higher-pressure membrane separation processes that can provide very high-quality reuse waters (even potable).

Sulfate Removal

Sulfate concentrations in wastewaters have come under increasing scrutiny from regulatory authorities recently. In contrast to other contaminants of growing concern such as nutrients and heavy metals, sulfate has no primary drinking water standard. While many treatment technologies have been developed to remove sulfate from wastewaters, heavily impacted waters are typically faced with the production of large amounts of gypsum (calcium sulfate) after lime precipitation. Mosaic has novel treatment approaches for the removal of both higher and lower SO₄ concentrations.

Valves

Mosaic is proud to be partnered with Bray Valves. Bray is the industrial leader in Ball, Balancing, Butterfly, Check, Globe valves and Actuators. With over 30 years of continued success and global operations in over 40 countries, Bray is one of the premier manufacturers of flow control and automation products and accessories in the world. Their modular product line of valves, actuators and accessories offer the best compatibility, economy and quality performance in the flow control industry. Bray is the valve of choice in the most challenging industrial applications.