WASTEWATER DISINFECTION RESOURCES

  • One important consequence of climate change for wastewater treatment plants is that they now need to cope with sudden increases in the effluent volume with the receiving waterbodies equally carrying more water and being in flood conditions. This is especially true for the final treatment step — disinfection prior to discharge.

  • In an era where waterborne pathogens are evolving and regulatory standards are tightening, the role of supplementary disinfection in water treatment for municipal operators and industrial facility engineers has never been more crucial.
  • In this case study, read about a successful pilot test in Long Island, New York, removing 1,4 dioxane from water. The technology used offers improved efficiency, reduced maintenance, and ongoing monitoring for reliable water treatment.

  • Atlantium Technologies installed a HOD UV system at a North American baseload generation facility to replace GAC filters and provide efficient and effective water treatment. The system ensures low chlorine concentration and reduces bacterial growth.

  • In this case study, learn how a cottonseed processing facility in Texas successfully prevented biofouling in their RO membrane filtration system by installing the HOD UV technology from Atlantium.

  • In this case study, learn why Formosa Plastics Group in Taiwan used Atlantium Technologies' HOD UV system to protect RO membranes from biofouling, resulting in cost savings and plans for further installations.

  • Many people encounter chlorine in their daily lives, whether it's as an ingredient in household bleach or an additive that sanitizes water in swimming pools. Chlorine is also used as an antiseptic, a bleaching agent in the production of paper and cloth, and to kill microorganisms in drinking water. But this familiar chemical is also extremely toxic. And because it's ubiquitous in many industries across the U.S., it often is released in chemical accidents and spills.

  • In this case study, read about an underdrain system that continues to operate as expected after 16 years of operation and appears to be in perfect condition. 

  • During World Water Week, participants from every corner of the world are meeting to discuss solutions to the planet's greatest water challenges, such as poverty, the climate crisis, and biodiversity loss. This year's focus is on innovation at a time of unprecedented challenges.
  • Read about a wastewater treatment plant whose UV system was unable to reliably meet mandated disinfection requirements, and why it opted to switch to a chemical treatment solution. 

WASTEWATER DISINFECTION SOLUTIONS

  • Floor Washer System

    The patent pending Floor Washer System is the Foambuster nozzle/deflector, but with the deflector rotated from below the nozzle to above the nozzle. The inverted splashplate spreads nozzle flow out across a floor in a fairly wide path to wash settled grit, sand or debris into a sump where it can be pumped out by a dewatering chopper pump. The Floor Washer System is particularly useful for attacking deposition problems in Combined Sewer Overflow (CSO) tanks, storm collection tanks, equalization tanks, lift stations, and influent channels.

  • GDT Mixing & Contacting Systems

    The GDT Process starts with the creation of ozone from an Ozone Generator. The ozone is then drawn into a Mazzei®Venturi Injector which provides dynamic mixing (a Back Pressure Control Valve adjusts injector outlet pressure optimizing ozone mass transfer in the system). Then mixing and contacting is enhanced in a Flash Reactor.

  • CHEM-FEED® CFWS-1 – The Wall Mount Skid For Limited Floor Space Installations

    CHEM-FEED Wall Mount Skid Systems were designed and engineered using solid modeling tools for superior piping installation and easy component maintenance. Every skid is completely assembled, tested, and shipped directly to you.

  • UniSystem® Package Wastewater Treatment Plant

    The standard UniSystem package plant is a rectangular tank consisting of an aeration chamber, hopper bottom clarifier, sludge holding tank, and chlorine disinfection chamber. Aeration Industries can supply painted carbon steel tankage or all of the internals and ancillary equipment for installation in concrete tanks. Treatment modules can be easily added to the design of the UniSystem depending on influent characteristics and effluent requirements. Treatment module options include a comminutor, flow equalization, denitrification equipment, filters, a membrane bioreactor, UV disinfection, post aeration, and phosphorus removal equipment.

  • Dual Diaphragm Chemical Feed For Precise Chem Dosing With No Vapor Lock

    While dosing challenging chemicals can be tricky for operators, there are a range of technologies that will help mitigate problems and ensure smooth, accurate, and dependable chemical dosing.

WASTEWATER DISINFECTION VIDEOS

Tune in to the latest episode of Water Talk as guests David Glovinsky and Andrew Daley from Trojan Technologies discuss Trojan's use of UV technology to treat and disinfect water.

ABOUT WASTEWATER DISINFECTION

 

Wastewater disinfection takes place after primary, secondary and sometimes tertiary wastewater treatment. It is typically a final step to remove organisms from the treated water before the effluent is released back into the water system. Disinfection prevents the spread of waterborne diseases by reducing microbes and bacterial numbers to a regulated level.

A variety of physical and chemical methods are used to disinfect wastewater prior to it being released into natural waterways. Historically, the chemical agent of choice for municipal wastewater treatment has been chlorine, due to its disinfecting properties and low cost. However, the rising cost of chlorine and concerns that low chlorine concentrations can still be toxic to fish and other wildlife, has given rise to more physical methods of wastewater disinfection being adopted such as ozonation or ultraviolet (UV) light.  

The use of ozone as a disinfection agent has the added benefit of increasing the dissolved oxygen content of the treated wastewater. However, because the ozone has to be generated, ozonation can require prohibitive up-front capital expenditure compared to traditional chlorination. UV disinfection has been growing in popularity as a wastewater disinfection method, in large part because of the life-cycle economics of the equipment and the fact that, like ozone, there is no toxic residual.