We make water analysis simpler.
Since our founding we have been committed to providing high-quality products that are simple to use and accurate. These are the values that Clifford and Kathryn "Kitty" Hach founded the company on in 1947, and we couldn't be more proud.
For more than 60 years, we've been at the crest of the industry - finding solutions that help you best manage your water. Our analytical instruments and reagents are used to test the quality of water in a variety of industries and markets - from around the corner, to around the globe.
Water analysis has to be right. You deserve complete solutions you can be fully confident in. Hach is your resource for expert answers, outstanding support, and reliable, easy-to-use products.
Source Water Monitoring
Source water can be vulnerable to accidental or intentional contaminants and weather related or seasonal changes. Monitoring the quality of your incoming source water enables you to anticipate changes to the treatment process that are needed to react to storms, algal blooms, industrial discharge, chemical spills, reservoir stratification/destratification, construction activity, sewage spills and other natural or man-made occurrences.
Disinfection Process Control
Regardless of the type of disinfectant used, analytical testing can help you comply with regulations, maximize disinfection efficiency, determine adequate CT credits, optimize chemical feed pump rates, reduce the risk of disinfection byproducts, and control taste and odor issues. A wide range of analytical methods and instrumentation is available to address the specific needs of each unique plant.
Coagulation, Flocculation, and Clarification
Coagulation, flocculation, and clarification are perhaps the most overlooked processes when installing instrumentation in a water treatment facility. This may be due to the fact that monitoring at these points is typically not a regulatory requirement. However, every step in the treatment process depends on preceding steps and those that follow to make the entire process function effectively. Measurement is critical at every step to optimize the process and control operational costs.
Disinfection Byproduct Reduction
Advanced analytical techniques are available to identify the specific disinfection byproducts formed in the treatment process and the distribution system. These techniques are beyond the technical and economic resources available at most facilities. Fortunately, alternate methods are available for screening for disinfection byproducts and for predicting disinfection byproduct formation that can be used routinely by most facilities with limited resources.
Monitoring turbidity of filter effluent is required for regulatory compliance in many countries and helps to assure that the final product is safe for public consumption. In addition to meeting regulatory requirements, monitoring turbidity is also beneficial for optimizing filter performance, establishing filter backwash cycles, and detecting filter breakthrough. Turbidity instrumentation is available to meet the unique needs of both conventional and membrane filtration facilities.
Monitoring specific parameters in the distribution system is commonly a regulatory requirement to assure delivery of safe drinking water to the community. Additional monitoring can also provide early indication of nitrification issues, water infiltration, line breaks, extended water age, or potential security violations.