Odor Control

 
 
   

Biological Products:

 

 

Bioaugmentation products for Wastewater applications in Papermills, Refineries, Chemical, Tanneries, Municipalities, Textiles, Steel, Agriculture, Animal feedlot,  Gun Powder plant, Food and Beverage- Dairy Products, Orange Juice factory, Wineries, Cookie factory, Vegetable processing plant, Meat packing, Barbecue Restaurant, Aquaculture, Ornamental Ponds for algae control, CAFO, Nursing homes, Military, Campgrounds, Universities, Regulatory agencies

 

 

Lab Services:

 

 

Filamentous Identification Lab Service. One reason to identify filaments is to determine the filaments characteristics and then determine the type present.  If the type is found out, a root cause can usually be associated with a particular filament.  If the cause is known, then a correction can be made to alleviate problems. Chlorination is only a quick fix.  Without process changes, filaments will grow back after chlorination.

Wastewater Biomass Analyses and Cooling Tower Analyses also available

 

Training Materials:

 

 

Training is an integral part of any job. Not everyone is at the same level of training. Many people want beginning concepts and basics. Some need technical information or troubleshooting. Some want equipment, technology or process information.

We have developed a full set of Basic training, Advanced training, Filamentous Identification the Easy Way as well as custom training CD's Manuals. We also provide hands-on training classes and soon will have an Online "E-University".

 

Audits and Consulting:

 

At Environmental Leverage® Inc., we have a team of experienced individuals who come into your plant with a fresh pair of eyes.  The system is checked from influent to effluent.  System optimization, equipment efficiency and operational excellence are key components explored. Key Benefits Equipment efficiency Total Cost of Operation reductions Reliability and safety

An onsite audit is conducted to examine system parameters, process controls, and current monitor and control procedures. A physical walk-through is conducted, process flow diagrams are examined, previous design criteria are examined and current standard operating procedures are evaluated along with data logs.

 

 


 

Odor Control

Latest News!

What's New!

We have just added "Virtual Audits" to our capabilities. Check out our new Services.  We are in the process of developing new courses for our ""Online E-University" in order to meet the needs of our global customers that cannot travel to our public classes.Visit our new website www.WastewaterElearning.com/Elearning

 

odor control 

Odor control is a big problem for many plants in the summer. Due to the increase in biological activity, more oxygen is required. Many times there are dead spots in a system or plant, such as corners, primary clarifiers, sludge holding tanks, scum pits, lift stations, etc. The increase in biological activity can deplete any oxygen available. Anoxic or anaerobic activity will then start to increase causing malodors to increase with the gasses generated.

 

Making sure that your system does not have dead spots, changing flow patterns, wasting more often, or increasing mixing can help. Sometimes additions of chemicals such as sodium nitrate are used where mechanical mixing is not possible. This will chemically prevent the formation of some sulfur compounds and biologically give the bacteria an alternate oxygen source, thus alleviating some of the odor causing problems. Remember bacteria will first go for free oxygen, then nitrates, then sulfates. If there is no oxygen, addition of nitrate is a safe alternative that can help avoid some odor problems.

 

What is an odor?

Odor is defined as a sensation resulting in the stimulation of the human olfactory organs. For an odor to be qualified it requires a source, carrier and receiver. Any substance with a vapor pressure can emit odors. The air currents carry the odor vapors or gases to a receiver - the human nose.

 

The degree to which the olfactory organs pick up an odor is dependent on the concentration of the substance, location from the source, air current strength and of course the condition of the receiver. In fact, this "odor" can be pleasant or malodorous depending on an individual’s sensitivity.

 

Personal preferences and exposure are also an issue. What is an offensive odor to one person may be normal and ignored by another. If you live on a farm, the odors generated from animal manure is a normal everyday smell, if you live in the city and are not exposed to those odors, they may seem offensive to you.

 

odor controlWhy is odor control a growing issue?

The cause for our heightened awareness of mal-odors can be attributed to population growth and expansion. Industries that were formally isolated are now closer to homes, parks and public areas. Odors have been proven to increase heart rate, respiration, and blood pressure. Long term exposure to odors can cause atrophy of the olfactory apparatus and may cause the loss of ones ability to smell. As a result, odor nuisance complaints from local citizens and environmental groups have increased. This has resulted in new laws enforcing resolution of odors emissions.

 

Where are these odors generated?

Many processes generate or release malodorous compounds. Biological wastewater plants are sources of hydrogen sulfide, organic acids, ammonia and methane, as well as mercaptans, amines, indoles and skatoles. Other manufacturing locations such as pulp and paper mills, oil refineries, rendering plants and food processing plants often generate and release significant levels of malodors including amines, mercaptans and aldehydes.

 

Malodorous substances can be generated in any location in a wastewater collection or treatment system where anaerobic bacteria produceodor control hydrogen sulfide, ammonia, organic acids and other decomposition products. Stagnant or non-aerated vessels are breeding areas for anaerobic bacteria. Sludge collection and holding tanks and poorly mixed digesters can be sources of hydrogen sulfide odors. Deposits of scum or sludge do not permit a sufficient inward diffusion of oxygen for them to stay aerobic and thus, odor free. Decomposing solids inland fills are sources of malodors, as are the process areas in pulp and paper mills, food processing plants and rendering facilities.

 

Can something be done to resolve malodor compounds?

The answer is yes! Read on...
There are many different approaches to odor control. There can be mechanical covers, scrubbers, natural barriers like trees or bark filters, there can be odor control chemistries applied on the surface area, in the water or in the air. The choices made must reflect the severity of the odors, the surrounding neighborhood, the work environment and obviously the cost to control the odors.

grease in lift stationSee our odor control sheet. Different products and programs are available for various applications and situations. Not all areas need the same method of correction.

 

Summary of Odor Control Chemistries and Application Areas

 

There are several categories of odor control compounds. There are basically products from Four different families to provide you with a variety of options to solve your odor problems. The table below gives a brief summary of the technologies and products available in the product line.odor control

 

 

 

Technology/Mechanism Type of Product
Precipitation (Zinc Chloride plus fragrances)

Ferric Sulfate

Odor neutralization Odor Neutralizer

Odor Neutralizer

Biological hydrogen sulfide prevention Nitrate/Bacteria blend
Biological reduction of sulfur compounds Bacteria blend with Thiobacillus

Bacteria blend with Purple Sulfur bacteria

H2S Scavengers

Chemical reduction of sulfur compounds

 

H2S scavenger that is non-water based.

 

Each of these products has advantages and disadvantages.
Make sure that when you are trying to solve an odor control problem, you use the best type of solution for your specific application. For more information on this and to see the advantages and disadvantages, check out our odor control section on our website

 

Summary of Odor Control Chemistries and Application Areas

 

Application Area Metal Precipitants Oxidizers Neutralizer (Atomized Neutralizer (To Liquid) Biological Prevention
Sludge Tanks

Yes

No

Yes

Yes

Maybe

Lagoons

No

No

Maybe

No

Yes

Press Building

Maybe

No

Yes

Yes

No

Digesters

No

No

Yes

No

Yes

Landfill

No

No

Yes

No

No

Drying Bed

No

No

Yes

No

No

Lift Stations

Maybe

Maybe

Yes

Maybe

Maybe

Aeration Basins

No

No

Maybe

No

Yes

Scrubbers

No

Yes

Yes

No

No

 

Odor Control Programs

Introducing a new and easier way for you to control odor. . . . .

Below is a brief summary of new odor control formulation.

 

The Chemicals- Mist Technology

Mist technology products are very versatile and can be used successfully in a variety of Industries and applications: Currently they have been used in:

  • Municipal Wastewater Plants
  • Industrial Wastewater Plants
  • Sludge Drying Beds o Landfills
  • Paper and Pulp Mills
  • Steel Mills
  • Metal Casting Plants
  • Refineries
  • Chemical Manufactures
  • Asphalt Plants
  • Food Processors
  • Poultry Farms
  • Hog Farms
  • Rendering Plants
  • Soil Remediation Sites
  • Fiberglass Fabricators

Other application areas where odor control can be used:

odor control

  • Waste Transfer Stations
  • Composting Sites
  • Boat Manufacturers
  • Packaging Plants
  • Restaurants
  • Hospitals
  • Hotels
  • Veterinary Hospitals/Clinics
  • Mortuaries
  • Airlines
  • Health Clubs
  • Day Care Centers

Application Technology High Pressure Spray Systems Large or Small Outdoor or Indoor Areas Low Pressure Air Atomization Stacks Explosion Proof Areas


odor controlMore on odor controlmist technology
Odor Control Case History
Odor Control Mist Technologies
Odor Control
What is an odor?

 

Wastewater Training Classes

Wastewater Training CD's