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Water and Cost Savings Success at Large Asian Resort & Casino Complex

GoalReduce freshwater consumption and operating costs by safely reusing treated wastewater as cooling tower makeup water.

Reduced freshwater consumption by reusing 500 m³/day of treated wastewater.

Maintained reliable cooling system performance through effective biofouling control.

Lowered operating costs with projected annual savings of $330,000.

GoalReduce freshwater consumption and operating costs by safely reusing treated wastewater as cooling tower makeup water.

<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\u003eResort Hotel and Casino Facility\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\u003eEvaporative cooling water system (500 m\u003csup\u003e3\u003c/sup\u003e/day makeup)\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\u003eHigh freshwater usage and costs. On-site treated wastewater available to use as cooling tower makeup water, but with significantly increased risk for biofouling and associated problems.\u003c/li\u003e\r\n\u003c/ul\u003e\r\n\u0026nbsp;","_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’s Get Clean, Keep Clean program was implemented which involved filtration, improved chemical feed and monitoring with aquaDART\u003csup\u003e®\u003c/sup\u003e Automation Control and a bioDART\u003csup\u003e®\u003c/sup\u003e Biofouling Monitor, and patented bioeXile\u003csup\u003e®\u003c/sup\u003e biofilm removal technology.\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\u003e180,000 m\u003csup\u003e3\u003c/sup\u003e/yr reduced freshwater usage resulted in $330,000 /yr cost savings.\u003c/li\u003e\r\n\u003c/ul\u003e","_text_list_4_text_item":"field_662a1bf77d245","text_list":5,"_text_list":"field_662a1bb97d244"},"mode":"edit"} /--><!-- wp:heading {"level":5} --></p> <h5 class="wp-block-heading">Customer Challenge</h5> <p><!-- /wp:heading --><!-- wp:paragraph --></p> <p>Due to the hot climate, a large volume of water was required to operate the cooling tower system at a resort hotel and casino in Asia. No additional water savings were available from increasing the cycles of concentration. An alternative was needed to reduce freshwater usage and overall operating costs.</p> <p><!-- /wp:paragraph --><!-- wp:heading {"level":5} --></p> <h5 class="wp-block-heading">Recommended Solution</h5> <p><!-- /wp:heading --><!-- wp:paragraph --></p> <p>The facility generates a large volume of wastewater daily which was processed in a biological treatment plant before discharge. Compared to freshwater, the treated wastewater presented many challenges for use as cooling tower makeup water:</p> <p><!-- /wp:paragraph --><!-- wp:list --></p> <ul class="wp-block-list"><!-- wp:list-item --> <li>14x Total Suspended Solids (TSS)</li> <!-- /wp:list-item --><!-- wp:list-item --> <li>6x Turbidity</li> <!-- /wp:list-item --><!-- wp:list-item --> <li>5x Bacteria count</li> <!-- /wp:list-item --><!-- wp:list-item --> <li>2.5x Conductivity</li> <!-- /wp:list-item --></ul> <p><!-- /wp:list --><!-- wp:paragraph --></p> <p>To address the significantly increased risk of biofouling, Chem-Aqua developed a comprehensive, multi-step Get Clean, Keep Clean<sup>TM</sup> program for enhanced treatment, monitoring, and program management. Key elements include:</p> <p><!-- /wp:paragraph --><!-- wp:list --></p> <ul class="wp-block-list"><!-- wp:list-item --> <li>aquaDART Automation Control System</li> <!-- /wp:list-item --><!-- wp:list-item --> <li>bioDART Biofouling Monitor</li> <!-- /wp:list-item --><!-- wp:list-item --> <li>bioeXile biofilm removal chemistry</li> <!-- /wp:list-item --><!-- wp:list-item --> <li>Multi-stage filtration</li> <!-- /wp:list-item --><!-- wp:list-item --> <li>Structured sampling, monitoring, and chemical program</li> <!-- /wp:list-item --><!-- wp:list-item --> <li>Expert chemical treatment program management</li> <!-- /wp:list-item --></ul> <p><!-- /wp:list --></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/link/5c3083794be94f0b99ce1ad8fef4a164.aspx" alt="" width="446" height="269" /></p> <p><!-- wp:image {"id":7044,"width":"433px","height":"auto","sizeSlug":"full","linkDestination":"none","align":"center"} --><!-- /wp:image --><!-- wp:heading {"level":5} --></p> <h5 class="wp-block-heading">Results Achieved</h5> <p><!-- /wp:heading --><!-- wp:paragraph --></p> <p>The Get Clean, Keep Clean approach successfully allowed the use of the recycled water for multiple years:</p> <p><!-- /wp:paragraph --><!-- wp:list --></p> <ul class="wp-block-list"><!-- wp:list-item --> <li>bioDART showed consistent biofilm and biofouling control</li> <!-- /wp:list-item --><!-- wp:list-item --> <li>Chiller approach temperatures maintained at 34.7 - 35.6&deg;F (1.5 - 2.0&deg;C)</li> <!-- /wp:list-item --><!-- wp:list-item --> <li>Sustainability increased by reusing 500 m<sup>3</sup>/day of wastewater Projected savings of $330,000 annually</li> <!-- /wp:list-item --></ul> <p><!-- /wp:list --><!-- wp:paragraph --></p> <p><em>CS2-007</em></p> <p><!-- /wp:paragraph --><!-- 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/CS2-007.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>

Reduced freshwater consumption by reusing 500 m³/day of treated wastewater.

Maintained reliable cooling system performance through effective biofouling control.

Lowered operating costs with projected annual savings of $330,000.