Chlorine Dioxide Reduces Costs in Thermal Storage Systems

GoalEstablish cost-effective microbiological control to eliminate slime, reduce biocide use, and lower operating costs.

<p><!-- wp:acf/two-cols-text {"name":"acf/two-cols-text","data":{"option_change_padding_block":"1","_option_change_padding_block":"field_6629e1de35327","padding_options":"py-to-60","_padding_options":"field_6629e0d2860af","background_colour":"blue","_background_colour":"field_6629e20935328","block_options_clone":"","_block_options_clone":"field_662a1b96b768f","block_title":"Overview","_block_title":"field_6629f36ac5d6b","block_content_clone":"","_block_content_clone":"field_662a1b96b76fb","text_list_0_text_item":"\u003cul class=\u0022list-check-mark\u0022\u003e\r\n \t\u003cli\u003e\u003cb\u003eIndustry: \u003c/b\u003eGovernment\u003c/li\u003e\r\n\u003c/ul\u003e","_text_list_0_text_item":"field_662a1bf77d245","text_list_1_text_item":"\u003cul class=\u0022list-check-mark\u0022\u003e\r\n \t\u003cli\u003e\u003cb\u003eApplication: \u003c/b\u003eThermal Storage\u003c/li\u003e\r\n\u003c/ul\u003e","_text_list_1_text_item":"field_662a1bf77d245","text_list_2_text_item":"\u003cul class=\u0022list-check-mark\u0022\u003e\r\n \t\u003cli\u003e\u003cb\u003eProblem: \u003c/b\u003eSystem known to have slime layer in the storage tank. A cost effective microbiological control program was needed\u003c/li\u003e\r\n\u003c/ul\u003e","_text_list_2_text_item":"field_662a1bf77d245","text_list_3_text_item":"\u003cul class=\u0022list-check-mark\u0022\u003e\r\n \t\u003cli\u003e\u003cb\u003eSolution\u003c/b\u003e: Chem-Aqua supplied the Chlorine Dioxide (ClO\u003csub\u003e2\u003c/sub\u003e) generator, the chemistry, and the knowledge to bring a cost effective solution\u003c/li\u003e\r\n\u003c/ul\u003e","_text_list_3_text_item":"field_662a1bf77d245","text_list_4_text_item":"\u003cul class=\u0022list-check-mark\u0022\u003e\r\n \t\u003cli\u003e\u003cb\u003eResult\u003c/b\u003e\u003cb\u003e: \u003c/b\u003eA residual was achieved in the system, indicating that the associated chlorine dioxide demand from bacteria and other contaminants had been overcome\u003c/li\u003e\r\n\u003c/ul\u003e","_text_list_4_text_item":"field_662a1bf77d245","text_list":5,"_text_list":"field_662a1bb97d244"},"mode":"edit"} /--></p> <p><!-- wp:heading {"level":5} --></p> <h5 class="wp-block-heading">Customer Challenge</h5> <p><!-- /wp:heading --></p> <p><!-- wp:paragraph --></p> <p>A government installation with a 2.6 million gallon thermal storage system of loop water was in need of a cost effective microbiological control program. The system was known to have a slime layer in the storage tank. Actual biocide treatment history was unknown and undocumented.</p> <p><!-- /wp:paragraph --></p> <p><!-- wp:heading {"level":5} --></p> <p><!-- /wp:heading --></p> <p><!-- wp:paragraph --></p> <p>A cost effective microbiological control program can be a challenge in these systems. Further compounding the problem, degradation byproducts from traditional biocides leave organic residues that can ultimately provide a nutrient source for the bacterial population. Chlorine dioxide (ClO₂) is not like traditional biocides. ClO₂ is a dissolved gas in solution and is normally generated onsite from precursors. The resulting solution is fed to achieve a residual between 0.5 to 1.0 ppm as ClO₂ and leaves no byproducts useful in biological assimilation.</p> <p><!-- /wp:paragraph --></p> <p><!-- wp:heading {"level":5} --></p> <h5 class="wp-block-heading">Recommended Solution</h5> <p><!-- /wp:heading --></p> <p><!-- wp:paragraph --></p> <p>Solenis supplied the chlorine dioxide generator, the chemistry, and the knowledge to bring a cost effective solution. The system is 3-precursor generator product engineered to use the system water as the motive water and directly injecting the product into the system. A quarterly treatment scheme was initiated. After the third application, a residual was achieved in the system, indicating that the associated chlorine dioxide demand from bacteria and other contaminants had been overcome. It has been more than a year since the last treatment, and ongoing microbiological tests do not indicate a need for additional treatment.</p> <p><!-- /wp:paragraph --></p> <p><!-- wp:heading {"level":5} --></p> <h5 class="wp-block-heading">Results Achieved</h5> <p><!-- /wp:heading --></p> <p><!-- wp:paragraph --></p> <p>Solenis' recommendations helped resolve the microbiological issue and provide an immediate savings of over $85,000 as compared to traditional biocides. Additional savings of over $156,000 are available as a result of not having to treat the system quarterly with a traditional non-oxidizing biocide.</p> <p><!-- /wp:paragraph --></p> <p><!-- wp:image {"id":7166,"sizeSlug":"full","linkDestination":"none"} --></p> <figure class="wp-block-image size-full"><img class="wp-image-7166" src="https://www.chemaqua.com/en-us/wp-content/uploads/sites/6/2024/07/CS3-002_Charts.png" alt="Biocide vs. chlorine doxide chart" /></figure> <p><!-- /wp:image --></p> <p><!-- wp:paragraph --></p> <p><!-- /wp:paragraph --></p> <p><!-- wp:acf/two-cols-text-ctas {"name":"acf/two-cols-text-ctas","data":{"option_change_padding_block":"1","_option_change_padding_block":"field_6629e1de35327","padding_options":"py-to-60","_padding_options":"field_6629e0d2860af","background_colour":"white","_background_colour":"field_6629e20935328","block_options_clone":"","_block_options_clone":"field_662a2539a7d03","block_text_list_0_block_title":"","_block_text_list_0_block_title":"field_662a2573bc047_field_6629f36ac5d6b","block_text_list_0_block_excerpt":"","_block_text_list_0_block_excerpt":"field_662a2573bc047_field_6629f37dc5d6c","block_text_list_0_show_cta_button":"1","_block_text_list_0_show_cta_button":"field_662a2573bc047_field_662b4b6278ee7_field_6629f386c5d6d","block_text_list_0_block_cta_button":{"title":"Download PDF","url":"https://www.chemaqua.com/en-us/wp-content/uploads/sites/6/2024/07/CS3-002.pdf","target":""},"_block_text_list_0_block_cta_button":"field_662a2573bc047_field_662b4b6278ee7_field_6629f39cc5d6e","block_text_list_0_use_special_button":"0","_block_text_list_0_use_special_button":"field_662a2573bc047_field_663af6cb5a467","block_text_list":1,"_block_text_list":"field_662a2550bc046"},"mode":"edit"} /--></p>