SUEZ Water - Water Technologies & Water

Wastewater Odor Control Chemicals

Meet odor emissions requirements and improve your public image

Whether you process water for public consumption, treat wastewater, or run industrial processes in which water purity is essential, control of objectionable odors is a challenge that impacts the environment, the community’s well-being, and the plant worker’s safety and productivity.

Facilities are now facing the challenge of meeting and maintaining compliance to ambient air standards driven by air pollution regulatory agencies and workplace health and safety enforcement organizations. 

Wastewater Odor Control Chemicals

Meet odor emissions requirements and improve your public image

Whether you process water for public consumption, treat wastewater, or run industrial processes in which water purity is essential, control of objectionable odors is a challenge that impacts the environment, the community’s well-being, and the plant worker’s safety and productivity.

Facilities are now facing the challenge of meeting and maintaining compliance to ambient air standards driven by air pollution regulatory agencies and workplace health and safety enforcement organizations. 

Featured Product

ProSweet* Odor Control  

SUEZ has introduced the most comprehensive line of odor control products in the marketplace. The ProSweet line of products includes hydrogen sulfide and mercaptan scavengers that are unique to SUEZ and have proven themselves in a wide range of situations where no other solution has proven cost-effective.

These products are non-toxic, non-corrosive and generate no sludge. Other products in the ProSweet line cost-effectively neutralize non-sulfide odors, such as amines and organic mixtures produced in food operations. These products can be added directly to the water phase or can be misted in water or air delivery systems.  

ProSweet Ddor Control Features & Benefits

SUEZ ProSweet odor control products, used together with an in0depth system audit and engineering application and operational recommendations, provides the following benefits:

  • Control of sulfide and nuisance odors
  • Improvement of ambient air compliance to H2S and nuisance odor criteria
  • Elimination of unpleasant and unsafe work environment associated with hydrogen sulfide
  • Improvement of environmental image and public relations with surrounding communities 
  • Maintenance of equipment integrity and prevention of corrosion related maintenance cost due to H2S influenced corrosion
  • Control of odors without creating additional sludge in systems being treated
  • Availability of technical and engineering support to provide operating and monitoring recommendations 

Odor Effects

Wastewater Treatment Plant Odor Effects

Odors emitted from manufacturing facilities can impact an operation in many ways:

  • Public complaints about odor can negatively affect an industry’s image in the marketplace and its ability to carry out an effective public relationship policy with the surrounding community.
  • Safety concerns can arise from people working in areas where odors can overcome them. 
  • Productivity impact can be seen in areas of a facility where objectionable odors exist due to employee avoidance or neglect.
  • Production can be affected through the presence of odors and odor producing conditions, which taint product quality.
  • Equipment integrity can be threatened by the presence of many odors, which are corrosive in nature.

It should be noted that not all manufacturing facilities produce odors or experience these problems, nor are all odors noxious or toxic in nature. However, one very large segment of the odor control market, which does fit this description and dictates immediate and complete attention, is the control of hydrogen sulfide (H2S) generation and evolution.
 

Odor Detection

Preliminary monitoring and sampling for odors

Normally, repeated odor complaints are the first indicators of potentially damaging sulfide generation within a system. In more extreme cases, the problems are manifested by deteriorated conditions in pipes and electrical equipment or by structural failures.

Evidence of sulfide generation warrants the implementation of a preliminary program to assess the overall potential for sulfide generation. Such a preliminary program should include a thorough investigation of odor complaints, and a systematic investigation of the wastewater collection and treatment system to identify major potential contributors.

The survey of odor generation should begin at the waste treatment plant and proceed upstream throughout the facility. The preliminary survey should consist of a simplified field analysis of sulfide levels in the water and air to determine the actual trouble areas. Hand held monitors can be used for air sampling. Test kits can be used for wastewater testing. Normally, odor problems will occur when dissolved sulfide levels are 1.0 to 1.5 ppm (mg/L) or greater. 

The following locations should be checked: 

  • Lift stations - sample wet-well influents, pump discharges, and ends of pressure mains to determine sulfide balance. 
  • Gravity sewers - turbulence may release H2S gas and cause corrosion of manhole chambers.
  • Sludge holding tanks - residual H2S and anaerobic activity will cause problems.
  • Areas of turbulence and long detention times - sample locations of turbulence where sulfide may be released. Measurement of total sulfides before and after the point of turbulence can give an indication of the quantity of H2S released to the atmosphere. 

Recycle streams from thickeners, digesters, and other sludge treatment processes should also be sampled, as these can contain high concentrations of H2S that can result in severe odor and/or corrosion problems at the point of side stream return. Air samples from enclosed spaces exposed to wastewater may also be tested to determine the severity of odors.

*A trademark of SUEZ. May be registered in one or more countries.