Please see attachments for assignment. Grading Rubic along with Article Critique also attached.

30 Pollution Engineering AUGUST2012

By Norman Wei PRACTICALMANAGEMENT

W hen two industry leaders join forces to combine bio and dry odor

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tem on the market! Purafil’s new BIOLOGICAL AIR TREATER

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Exclusive scientific odor control partnership removes the following typical pollutants:

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Advanced Biological Odor Control System Advertorial

T here has been much talk over the past few years about sustainability. There are hundreds of defi- nitions yet no one seems to understand what it

really means. So-called experts are coming up with metrics and indices as new ways to measure sustain- ability and none has universal acceptance.

Sustainability is the environmental buzzword of this decade.

According to EPA, sustainability is based on a simple principle: “Sustainability creates and maintains the conditions under which humans and nature can exist in productive harmony, that permit fulfilling the

social, economic and other requirements of present and future generations.”

According to this definition, as products are made, every effort should be made that there is as little net negative impact on the environment as possible. A good example is a savings account. With $1,000 in a savings account that pays three percent interest a year, the sustainable way to manage the account would be to spend no more than $30 a year. If more than $30 is taken out in a year, the account would deplete over time. Eventually, there will be nothing left for heirs; it would not be a sustainable account.

Think of nature as one gigantic bank account. As resources are used, it must not be at a rate faster than they can be found and mined or recycled. For example, if too many pollutants are discharged into a river, the river may not be able to assimilate the pollutants in time and the net result would be a depletion of dis-

Demystifying Environmental Sustainability With differing opinions, the concept of sustainability can be a challenge to understand; learn how to practically address it.

””“ “ In fact, the entire premise behind permitting is sustainability.

By Norman Wei PRACTICALMANAGEMENT

AUGUST2012 www.pollutionengineering.com 31

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solved oxygen in the water and dead fish. The river in this example is not being sustained and the practice of discharging pollutants into this river is not sustainable.

This concept of sustainability is not new at all. Regulatory agencies’ permitting programs have been taking sustainability into account for years. In fact, the entire premise behind permitting is sustainability. The amount of pollutant allowed to discharge into a stream under a permit is entirely dependent on the assimilative capacity of that stream.

On the air side, to build a new power plant in a non- attainment area (i.e. where the National Ambient Air Quality Standards are not being met at the time), the agency requires an offset establishing lower emissions under the Clean Air Act’s New Source Review Program. For example, if to emit 1,000 tons of new soot into the atmosphere in Los Angeles, one needs to either pur- chase an existing plant that is currently emitting 1,500 tons of soot and shut it down or purchase emission credit in the open market.

The above examples also illustrate the two main approaches to environmental sustainability, namely,

“waste minimization” and “pollution prevention.” These concepts have been around for years as well! Every manager knows that if he can find a way to make his products by generating less wastes and causing less pollution, he will save money in the long run.

Years ago, the canning industry converted from mak- ing three-piece cans with lead soldered side seams to making two-piece cans with water-based sealing com- pound for the same sustainability reasons. The water- based sealing compounds generate no hazardous wastes and the whole process causes a lot less pollution. PE

Norman Wei Norman Wei is an environmental con- sultant based in Florida who conducts environmental compliance seminars throughout the country. Over 2,000 en- vironmental professionals have attended his seminars. His website is www.proac- tenv.com and his blog is http://norman- swei.wordpress.com. His Twitter account is www.twitter.com/epaseminar and his

LinkedIn account is www.linkedin.com/in/normanwei. He can be reached by email at [email protected].

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