At Schreiber, our focus is simple: We improve wastewater. How we do it is pure ingenuity. With installations at more than 2,000 water treatment facilities worldwide, Schreiber has provided unique design (over 25 patents, from screw pumps to tertiary filtration), outstanding fit and finish, on-site expertise and responsive service since 1979. Technological innovations—such as the compressible Fuzzy Filter media system and the Continuously Sequencing Reactor (CSReactor)—have greatly improved cost effectiveness and energy efficiency in wastewater treatment and continue to identify Schreiber as a leader in the industry.


FlexControl FlexControl

Behind all of Schreiber’s patented methods for biological wastewater treatment, our process controls provide users with the ability to run their operations. FlexControl monitors and controls the chemistry used by your biological reactor throughout all three phases of wastewater treatment: oxic, anoxic and anaerobic. Its flexible design allows you to adapt quickly to changing conditions like seasonal capacity demands, increases in municipal population, permit modifications and much more—without the expense of reprogramming your system or purchasing new equipment.

Fuzzy Filter Fuzzy Filter

Schreiber’s Fuzzy Filter is a unique compressible media filter that very effectively replaces conventional media filtration and can be applied to a wide range of filtration applications in the industrial, municipal as well as commercial markets.

Screw Pumps Screw Pumps

Schreiber incorporates the Archimedean Screw Pump concept in both the Tube Mounted Screw Pump and the Open Flight Screw Pump. This concept provides variable capacity at a constant speed up to its design maximum.

Fine Screens Fine Screens

Schreiber’s MC Fine Screen is a traveling band, deep channel screen with depths up to 50 feet and widths up to 14 feet including slot spacing to 1mm. The screen requires very little maintenance and is easy to work on without dewatering due to the block design and no underwater moving parts.

Grit & Grease Removal System Grit & Grease Removal System

Schreiber’s Grit & Grease Removal System consists of a rectangular concrete channel with two parallel chambers. The rectangular design provides efficient removal over a wide range of flows.

Washer/Compactor Washer/Compactor

The Schreiber Washer/Compactor washes out organics and dewaters screenings in a batch sequence. Screenings enter the top of the unit and are agitated by a rotating shaftless screw in a trough being supplied with wash-water. As the screw rotates in a forward and reverse motion providing agitation, entrained organic material is released from the screenings. The organics now in suspension are drained back to the process stream for treatment by the process equipment. The washed screenings are transferred over a barrier at one end of the wash trough into the compactor section below. The screenings are subsequently dewatered by the action of a compactor screw, gravity and conical discharge, and then conveyed through a larger diameter discharge pipe to a screenings container. The washed and compacted screenings material is significantly reduced in both volume and organics, resulting in disposal cost savings, and will pass the Paint Filter Test.

Clean Screens Clean Screens

The Schreiber Bar Screen performs a complete job of removing screenings from the wastewater and placing them into a container for disposal. Using a rugged screen to remove large, potentially hazardous materials, the Bar Screen is the right tool for shallow-depth coarse screening.

Peripheral Drive Clarifiers Peripheral Drive Clarifiers

Schreiber’s Peripheral Drive Clarifiers are favored because of their ability to accomplish rapid sludge removal and continuous collection and removal of floatables. Instead of the typical center-drive high torque arrangement, Schreiber Clarifiers utilize the mechanical leverage and mechanical simplicity of a peripherally driven system. A low horsepower single drive unit is all that is needed to rotate both the scraper and the skimming assemblies. The assemblies are suspended from a rotating access bridge or, in the case of smaller units, a lightweight rotating beam arm. The rotating skimming equipment removes floatables regardless of wind direction, and the helical scrapers convey settled solids to the center of the basin for removal in one revolution or less.



100 Schreiber Drive

Trussville, AL 35173-1876


Phone: 205-655-7466

Fax: 205-655-7669

Contact: Sales


  • Getting Down To The Nitty Gritty
    Getting Down To The Nitty Gritty

    It has been said that the unseen and untreated can break down any system — this phrase could not be more accurate than in the world of wastewater treatment when considering the infiltration of grit into a system. Infiltration happens in the collection system, whether it’s from living on the coast, aging infrastructure or just plain old build up over time.

  • Wastewater Reuse And Recycling Today
    Wastewater Reuse And Recycling Today

    Over the last several years the wastewater reuse segment of the water industry has experienced both rapid growth and tremendous change. Global demand for increased water supplies fuels the development of alternative water sources, including reclaimed wastewater.

  • Potable Water Fuzzy Filter Improves Plant’s Overall Efficiency
    Potable Water Fuzzy Filter Improves Plant’s Overall Efficiency

    Municipal Potable Water applications for the Fuzzy Filter have grown the past few years thanks to a strong relationship established with a consulting engineering firm active in the industry. Read the full article to learn more about current installations of the Fuzzy Filter and how it can improve a plant’s overall efficiency.

  • Higher Flux Rate Operation With The Fuzzy Filter
    Higher Flux Rate Operation With The Fuzzy Filter

    As greater restrictions and increased capacities are being placed on industrial & municipal plants, filtration systems are being pushed to greater operating levels. The Fuzzy Filter has enjoyed a distinct advantage over conventional media and disc type filters by virtue of its ability to operate at over 5 times conventional flux rates while maintaining effluent quality better than these technologies.

  • The Often Overlooked Benefits And Versatility Of GRO And GR Systems For Existing Plants
    The Often Overlooked Benefits And Versatility Of GRO And GR Systems For Existing Plants

    Schreiber has designed and installed several dual GR plants in which one unit serves as the aeration/clarification unit and other unit serves as the digester/thickener/clarification unit. At the Mirasol, MO plant, the GR digester was sized to allow digestion/clarification in the initial phase, thus satisfying the clarifier duality required in many states, and will be converted to a digester/thickener in a future plant expansion.

  • Fuzzy Filter: Video
    Fuzzy Filter: Video

    Innovative and cost effective, Fuzzy Filter uses compressible media for variable porosity, with high solids storage and no filtered water needed for washing.

  • Grit & Grease: Video
    Grit & Grease: Video

    Schreiber’s grit and grease removal system removes both grit and grease in a common structure. Two parallel rectangular concrete channels combine to separate and collect grit and grease: one to settle grit particles for removal, and the other to collect grease using Schreiber’s patented air-skimming technology. The system meets the specific flow requirements of each facility and handles large fluctuations in flow. The typical detention time at the design peak flow is five minutes.

  • Continuously Sequencing Reactor: Video
    Continuously Sequencing Reactor: Video

    The Schreiber Continuously Sequencing Reactor, or CSR, is a Biological Nutrient Removal (BNR) system contained in a single basin. It produces the three process phases required for BNR — oxic, anoxic and anaerobic — in one basin, performed sequentially and repetitively over time. Watch the video to learn more.