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ASSOCIATIONINSIGHT Portable Sanitation Association International News BIWEEKLY EDITION JULY 8, 2020 Page 17 Continued on page 18 Deodorizers: What You Need to Know Deodorizers are an essential part of most portable sanitation operations. The following information is intended to provide basic information about the options available to portable restroom operators. For detailed analysis of what deodorizer solutions are the best fit for your needs, check with representatives of the companies that manufacture and sell these products. Tip #1: Ask Questions and Understand How Deodorizers Work. No matter what type of deodorizer your company chooses to use, virtually all will include these elements: • Odor control to neutralize or remove the unpleasant scents that are natural when organic matter is breaking down • Fragrances to offer an alternative scent to the natural ones being neutralized or removed • Dyes to color the water in the tank and promote the perception of cleanliness • Surfactants to lower the surface tension so waste is more easily covered by the water in the tank and dispersed Tip #2: Match the Type of Deodorizer and the Delivery Method to Your Business Needs. Deodorizer products generally fall into three broad categories and two delivery methods. There are several considerations in choosing from among them: What is allowed in your area, cost, and convenience are probably the most important ones. Deodorizer Type Features/Benefits Considerations Formaldehyde—a biocide that masks odors and reduces the production of odors. • It's the oldest deodorizer, at one time was the most common, and it still is perceived as a very powerful solution, especially in hot climates. • Tends to be less expensive than other product classes • The substance is highly regulated in some states and municipalities • The US Toxicology Program lists formaldehyde as a "known carcinogen," while the World Health Organization suggests it is a "possible carcinogen" Formaldehyde-free biocides—work by preventing the growth of bacteria and subsequent odors in the tank, paired with one of many pleasant scents to mask odor. • These products actually break down the source of odors in a tank; they are still constantly being updated and improved. • Break down solids and paper to reduce mounding Depending upon the components in the biocide, these products may be scrutinized at waste treatment facilities; regulations vary worldwide. Your supplier can provide you supporting documentation to assist you at the disposal facility. Biological "green" deodorizers—work by masking and/or breaking down odor molecules to odorless ones, using odor capture technology, or natural odor neutralizers. Note: There is no standard definition of the term "green" products. Be sure to ask how the manufacturer defines the term. • These are the most "environmentally friendly" products • The products are beneficial to the treatment plant, so loads containing only green products are relatively easy to dispose • Experts agree trends are moving toward using products that are good for treatment plants and the environment. • Companies that use these products can promote their eco-friendly approach. • In general, green deodorizers are perceived as less effective than other options. They take the most time to activate in the tank and are some say it doesn't last as long as other products. • Temperatures greatly affect how these products perform. In cold climates, they are particularly ineffective.