martes, 15 de noviembre de 2016

Advanced Technologies for Guaranteed Performance
Industrial and municipal wastewater treatment generates odors that can be strong, persistent, and a
nuisance to employees, residents, businesses, and industries located near the
wastewater treatment plant.


SPECIAL BLEND MISTER CT‐417 AND MISTING ASSEMBLY TM‐0010 OFFER A GREAT SOLUTION
Example: An atomized “dome” of Odor Neutralizing products that can be used to control odors rising
from a primary equalization tank at a municipal
wastewater facility.
Odors are generated in varying degrees throughout the wastewater treatment
process with the main odor‐generating areas being pump stations, head works, clarifiers, digesters,
aeration basins, lagoons and sludge handling areas, sludge drying beds, manholes areas amongst
others.

Odors that are generally associated with this process include hydrogen sulfide, ammonia, sulfur
dioxide, aromatic hydrocarbons, mercaptans, amines and indoles.

Hydrogen sulfide is a serious problem in wastewater treatment plants. Fogging systems installed at
the bar screens and digesters, can solve the problem. In some cases the odor control products can
also be diluted with plant water for a combined action, synergistic operation.

Septage haulers need to take their loads somewhere and that is usually the local wastewater plant.
Raw septage is especially odorous and can present odor problems to plants that otherwise have their
industrial emissions under control. Simple fan or nozzle atomization systems positioned near the
unloading point and vented or open downstream locations will provide simple and effective temporary
odor control as needed.
CHEMTRON
3901 S.W. 47TH AVE. #400, DAVIE, FLORIDA 33314
Phone: (954)584-4530, Fax: (954)584-4531
email: sales@ChemTron.com
www.chemtron.com

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GREEN CHEMICALS

The Green Seal certification is granted by the organization with that name and has a great number of members contributing with the requirements to pass a raw material or a chemical product as "green". Generally for a material to be green, has to comply with a series of characteristics like: near neutral pH, low volatility, non combustible, non toxic to aquatic life, be biodegradable as measured by oxygen demand in accordance with the OECD definition.
Also the materials have to meet with toxicity and health requirements regarding inhalation, dermal and eye contact. There is also a specific list of materials that are prohibited or restricted from formulations, like ozone-depleting compounds and alkylphenol ethoxylates amongst others. Please go to http://www.greenseal.com/ for complete information on their requirements.
For information on current issues regarding green chemicals, see the blog from the Journalist Doris De Guzman, in the ICIS at: http://www.icis.com/blogs/green-chemicals/.
Certification is an important — and confusing — aspect of green cleaning. Third-party certification is available for products that meet standards set by Green Seal, EcoLogo, Energy Star, the Carpet & Rug Institute and others.
Manufacturers can also hire independent labs to determine whether a product is environmentally preferable and then place the manufacturer’s own eco-logo on the product; this is called self-certification. Finally, some manufacturers label a product with words like “sustainable,” “green,” or “earth friendly” without any third-party verification.
“The fact that there is not a single authoritative standard to go by adds to the confusion,” says Steven L. Mack M.Ed., director of buildings and grounds service for Ohio University, Athens, Ohio.
In www.happi.com of June 2008 edition, there is a report of Natural formulating markets that also emphasises the fact that registration of "green formulas" is very confused at present, due to lack of direction and unification of criteria and that some governmental instittion (in my opinion the EPA) should take part in this very important issue.