• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Garratt-Callahan

Water Treatment Products

  • About
    • G-C Overview
    • History & Heritage
    • President’s
      Message
    • G-C Advantage
    • Credentials & Certifications
      • ASSE Water Safety Certified
    • Customer Survey
    • Case Studies
  • Services
    • Services Overview
    • Water Safety
      • Water Safety Programs
    • Boiler Water Treatment
    • Wastewater Treatment Solutions
    • Cooling Water Treatment
    • Reverse Osmosis
    • Analytical Laboratory
    • Water Treatment Education Program
  • Problems Solved
    • Solutions Overview
    • Building Water Safety
    • Legionella & Waterborne Pathogens
      • Legionella Fast Facts
    • Green Chemistry
    • Safer Chemical Cleaning
    • Secondary Disinfection
    • Bioaugmentation for Water Treatment
    • Treatment Value
    • Cost Savings & Sustainability
    • PFAS & PFOS Removal
  • G-C Technologies
    • G-C Technologies Overview
    • G-C LumiTrac
    • G-C SolidTrac
    • G-C Controlled Release
      • G-C Controlled Release Photos
    • G-C ChemFeed
    • ClO2 Generators
    • Digital Water Management System
  • Industries
    • Industries Overview
    • Commercial Properties
    • Data Centers
    • Food & Beverage
    • Government
    • Healthcare
    • Hospitality
    • Manufacturing
    • Case Studies
  • Resources
    • Articles
    • Training Programs
    • Safety First
    • Request Safety Data Sheets
    • Water Treatment Glossary
  • Contact
    • Contact
    • In Case Of Emergency
    • COVID-19 Building Water Safety
    • Customer Survey
    • Safety Data Sheets
    • Billing Inquiry Request Form
  • Show Search
Hide Search
Home / Water Treatment Services / Wastewater Treatment Solutions

Wastewater Treatment Solutions

Aerial view of Wastewater treatment Plant

Water is a precious resource. If you’re managing your business’ water usage with an on-site sanitation system (OCS), you need wastewater treatment solutions that are cost-effective, comply with regulatory standards, and ensure worker safety. When you partner with Garratt-Callahan, you access a wide range of specialty of coagulants and flocculants that efficiently treat biological, chemical, and physical pollutants.

Industrial Wastewater Expertise

Water treatment is our passion. Whether you need to clarify, reduce chemical oxygen demand (COD), reduce biochemical oxygen demand (BOD),  dewater solids, increase throughput, or reduce sludge volume, Garratt-Callahan’s specialty coagulants and flocculants have been used to treat wastewater for over 100 years. We’re a company of experienced professionals — from field engineers to service departments — focused on complete customer satisfaction. As an industry leader, we ensure our customers have the most highly-trained experts solving their water treatment problems.

Wastewaster Solutions infographic

Increase Throughput With Specialty Coagulants & Flocculants

At Garratt-Callahan, we’ll work with you to optimize your wastewater treatment process. Trained territory managers help you determine which products and at which feed points will increase throughput and improve water clarification, allowing for more production while delivering cleaner water. The G-C product line has options for all wastewater treatment processes and conditions; together, we’ll determine the right balance and dosage to assure compliance and efficiency.

Contact Us

Concentrated Chemicals for Efficiency & Control

With our concentrated products, you maximize efficiency while minimizing costs. With the help of a G-C expert, you’ll determine the right chemical mix to apply to optimal feed points. As a result, you ensure effective wastewater treatment that’s safe for your onsite workers and meets regulatory compliance.

Compared with alum and other conventional coagulants, our liquid coagulants deliver both better clarification rates and lower sludge volumes during the solid-liquid separation process. Effective at low dosages because of their high active content, Garratt-Callahan coagulants also work at a wider range of pH levels and reduce the need for acid or caustic treatment applications. Available in a full range of charge values and molecular weights, our emulsion, liquid, and dry flocculants increase production rates and lower dewatering costs. As a result, you have greater control over the treatment process.

At Garratt-Callahan, we’ll work with you to optimize:

  • Municipal wastewater treatment 
  • Wastewater treatment plant process
  • Industrial wastewater
  • Water treatment processes
  • Wastewater purification

Trained territory managers help you determine which products and at which feed points will increase throughput and improve water clarification, allowing for more production while delivering cleaner water. The G-C product line has options for all wastewater treatment processes and conditions; together we’ll determine the right balance and dosage to assure compliance and efficiency.

Wastewater Testing for SARS-COV2

The SARS-COV2 virus — the virus responsible for COVID-19 — is present in wastewater. It can be detected by using Real-Time, quantitative Polymerase Chain Reaction (RT-qPCR). G-C can help you use wastewater as a marker to:

  • Measure the prevalence of COVID-19 in communities
  • Anticipate outbreaks for risk mitigation
  • Warn of future outbreaks

No-Cost Onsite Treatment Simulations

With over 100 years of industrial water treatment expertise, we know that finding the right mix of chemicals to treat your production’s wastewater is serious business. With regional offices across the U.S., G-C experts provide onsite simulations and water tests to demonstrate our chemicals’ efficiencies. These onsite demonstrations are complementary; we’ll work with you to find the most cost-efficient way to improve your production’s throughput.

Certified Laboratory & Expert Support

As your wastewater treatment partner, you have access to all our products and services. Our Analytical Laboratory is certified and follows State and Federal EPA standards. Using the most advanced instrumentation, we provide precise analyses of your water chemistry and equipment condition.

Schedule Onsite Consultation

Ready for a customized wastewater treatment solution? To connect you with the right expert, we’ll need some information about you — your contact information, building location, and your wastewater treatment needs. A Garratt-Callahan representative will contact you directly.

Industrial Water Treatment Expertise

Garratt-Callahan’s industrial water treatment experience started with servicing the boilers that powered the steam locomotives of the industrial revolution. Our tradition of service continues today in facilities that use high-thermal efficient boilers to power the data-centers of the information age. Our water treatment expertise, chemical applications, equipment maintenance, and customer service are more than just 100+ years of deep field experience, it is building trusted partnerships and long-lasting relationships.

"*" indicates required fields

Get the Water Treatment You Need

Name*
Privacy*

Primary Sidebar

"*" indicates required fields

Consult with a Water Treatment Expert
Name*
Privacy*

Services

  • Services Overview
  • Water Safety
  • Boiler Water Treatment
  • Wastewater Treatment Solutions
  • Cooling Water Treatment
  • Reverse Osmosis
  • Analytical Laboratory
  • Water Treatment Education Program

Industries Served

  • Industries Overview
  • Commercial Properties
  • Data Centers
  • Food & Beverage
  • Government
  • Healthcare
  • Hospitality
  • Manufacturing
  • Case Studies

Worried about Legionella in your system? Get Help

50 Ingold Road
Burlingame, CA 94010
[email protected]

Copyright © 2025 Garratt-Callahan.
All Rights Reserved.

  • Privacy & Terms
  • Sitemap
  • Careers
  • Contact