Wastewater disinfection is critical for protecting public health and the environment. However, traditional disinfection control strategies—like flow-pacing—struggle to account for dynamic variability in wastewater conditions.
Factors that can influence how much disinfectant is actually needed at any given time include:
A large dairy production company faced persistent sulfide-related odor issues in their wastewater treatment plant outfall at two separate facilities. In addition, one facility struggled to maintain target dissolved oxygen (DO) levels in its Bio Tower, impacting biological treatment performance. The company needed a rapid, effective solution to...
Read More
A large pork processing plant was facing mounting pressure from rising chemical costs, increasing municipal surcharges, and evolving safety standards around hydrogen sulfide (H2S) management in its wastewater operations. The core issues they wanted to address included:
The Challenge
A large protein processing facility in the southeastern US struggled to maintain target DO levels, creating a critical process bottleneck and threatening compliance.
Their difficulty maintaining DO levels stemmed from:
A large poultry processing facility was experiencing high levels of hydrogen sulfide (H2S) and liquid sulfides downstream of its anaerobic digesters. These conditions created:
The facility needed a...
Read More
For over 12 years, the NW Langley wastewater treatment plant (Vancouver, BC) has been using USP Technologies peracetic acid (PAA) application program for disinfection of their final effluent to successfully meet and exceed strict discharge permit conditions including fecal coliform concentrations, total residual chlorine (TRC), and toxicity threshold...
Read More
Faced with increased chemical prices, a large facility in Tennessee wanted to trial Sulfelox® as a potential alternative to their Bioxide program. USP Technologies was brought in to prove that SulFeLox® could replace nitrate at a 3:1 volume ratio which in a long-term program opens the door for cost...
Read More
Faced with increasing costs for controlling hydrogen sulfide in its wastewater collection system, the City of Bakersfield, California commissioned an evaluation of its program in 2019. The existing program using calcium nitrate dosing stations was becoming cost-prohibitive, particularly in sensitive areas where chemical demands and community sensitivities were highest. A...
Read More
In 2017, JEA was presented with two methods to control struvite formation at several points in their biosolids handling system at the wastewater treatment plant. One method utilized ferric iron (as FeCl3) to complex with phosphorous to interrupt the struvite potential, and the other utilized ferrous iron (as FeCl2)...
Read More
Ferrous and ferric salts are critical chemicals for numerous drinking water and wastewater applications. There are four main types: ferrous salts, ferric chloride, ferrous sulfate, and ferric sulfate. Within anaerobic digesters, iron chloride salts are the main tool for H2S and struvite control. They are produced by the steel...
Read More
5640 Cox Rd.
Glen Allen, VA 23060
Toll-free (800) 851-8527
Phone (804) 404-7696
3020 Gore Road
London, Ontario N5V 4T7
Toll-free (800) 851-8527
Phone (804) 404-7696
"*" indicates required fields