Cost-Effective Odor Control Strategies in the Collection System – The Traditional and the New

Traditional and new strategies for odor control can be cost effective when used in the correct situation and the life cycle cost is considered for the effected infrastructure. This report provides a brief explanation of the consequences uncontrolled odor can have on public relations and infrastructure integrity. Tradition odor control methods involve chemical feed. Calcium nitrate (Bioxide®) seeks to eliminate the conditions under which odor causing bacteria thrive. Magnesium hydroxide (Thioguard®) raises the pH level to interfere with sulfide production. Iron salts essentially react with sulfur to precipitate it out of solution. New odor control strategies generate gasses or vapor. OHxyPhogg™ controls odor by spraying an atomized solution of hydroxyl radical fog into the hydrogen sulfide-rich atmosphere. The DO2E system mixes the wastewater while also aerating it to control odor. FORSe 5 uses ambient air to generate ozone and pure oxygen to quickly oxidize the wastewater to eliminate odor. ECO2 dissolves pure oxygen into the wastewater to create aerobic conditions and prevent the formation of hydrogen sulfide in the first place. Whether a traditional or new method of odor control is used, it is important to evaluate which strategy will be the best, most cost-effective for each given situation.