Tenders Are Invited For Technical Analysis Or Consultancy Services – Chlorine Electrolysis Systems For Swimming Pools

Technical Analysis Or Consultancy Services – Chlorine Electrolysis Systems For Swimming Pools. The Sports And Swimming Pools In The City Of Essen Have Made The Fundamental Decision To Refrain From Dosing With Chlorine Granules In All Swimming Pools In The Future. For Reasons Of Occupational Safety And The Protection Of Bathers, The Use Of Chlorine Gas In Bottles Has Been Fundamentally Rejected. Since The Staff Rotates Between The Different Pools Of The Sports And Swimming Pools, A Uniform System For Disinfecting The Pool Water Is Sought. This Tender Includes All Sports And Swimming Pools That Are Not Already Undergoing Renovation Work. No Interventions In The Building Structure Are Planned For The Bathrooms In This Tender. Against This Background, Salting The Pool Water And, As A Result, The Swimming Pool Atmosphere Is Not Advisable, As The Structures Of The Existing Pools Are Not Designed For This. The Process Of Tube Cell Electrolysis Leads To Salting In The Pool Water And As A Result The Swimming Pool Atmosphere Also Becomes Slightly Salty. Therefore, The Use Of Tubular Cell Electrolysis Would Lead To Damage To The Building Structure In The Medium Term And Should Therefore Not Be Used. One Process For Obtaining Sodium Hypochlorite As A Disinfectant Is Membrane Cell Chlorine Electrolysis. In This Process, The Accumulation Of Salt In The Bathing Water Is Avoided Using Membrane Technology. But Safety Aspects Must Also Be Taken Into Account With This Procedure. For Reasons Of Operational Safety, No Return Of Liquids From The Electrolysis Circuit Back Into The Salt Dissolving Tank Is Permitted. This Would Result In A Dilute Chlorine Solution In The Brine Tank. To Protect The Employees Who Refill The Salt Into The Salt Dissolving Container, This Additional Risk Must Be Avoided. The System Produces A Sodium Hypochlorite Solution With Approx. 25 G/L Chlorine From Saturated Brine, Made From Tablet Salt According To Din En 16370 Quality 1, Water And Direct Current. Discarding Or Temporarily Storing Caustic Soda From The Process Must Be Ruled Out. What Happens To The Caustic Soda In The Production Process Of The Product Offered? ... To Prove The Functionality Of The Product Offered, References From At Least 3 Objects Of Comparable Size And Which Have At Least 3 Years Of Operation Must Be Provided For The Electrolysis Systems Offered. The Offer Must Be Accompanied By Meaningful Data Sheets For The Chlorine Electrolysis Systems Offered. The Equivalence To The Specifications From The Tender Must Be Evident From The Data Sheets. Offers Without This Evidence Will Not Be Accepted. Important: Please Note The Short Text From The Gaeb File For The Cost Calculation. Start Of Work: Immediately After The Order Was Placed In October, Conversion To Membrane Cell Chlorine Electrolysis Of 2 Indoor Swimming Pools In 2026. Conversion Of The Remaining Pools By The End Of The 2027 Summer Holidays (August 31, 2027). All Details Are This