SlideShare a Scribd company logo
1 of 19
Effekten af pH på dannelsen af biprodukter - Måler vi de relevante biprodukter? Kamilla Hansen og Henrik R. Andersen
Klorering ,[object Object],HOCl    OCl -  + H + pKa = 7.54 @ 25°C pH i svømmebade skal være mellem 7 og 8 HOCl bedst til at disinficere
Biprodukter Klor + Snavs Biprodukter Trihalometan(THM) Haloeddikesyre(HAA) Trikloramin(NCl 3 ) Haloacetonitril(HAN)
Lavkloreringsforsøg Gladsaxe ,[object Object],[object Object],[object Object]
Lavkloreringsforsøg Gladsaxe ,[object Object],pH Frit klor Normal 7.3 1.5 mg/L Forsøgsdrift 6.7 0.4 mg/L
Lavkloreringsforsøg Gladsaxe ,[object Object],[object Object],[object Object]
Konklusioner fra Gladsaxe forsøget ,[object Object],[object Object],[object Object],Kristensen et al., Forsøgsdrift af varmtvandsbassin I Gladsaxe svømmehal ved lavt indhold af frit klor og reduceret. DHI Danmark, Juni 2007
Pas på – hvis vi sænker pH så… ,[object Object],[object Object],[object Object]
Hvilke biprodukter? Biprodukter Trihalometan Haloeddikesyre Trikloramin Klor + Snavs Haloacetonitril pH klor dosis
Svømmebad ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Kropsvæske analog ,[object Object],Ammonium chloride NH 4 Cl Urea NH 2 CONH 2 Creatinin C 4 H 7 N 3 O Histidin C 6 H 9 N 3 O 2 Hippursyre C 9 H 9 NO 3 Urinsyre C 5 H 4 N 4 O 3 Citronsyre C 6 H 8 O 7
Partikler fra tromlefilter >10µm
Forsøgsdesign ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Kropsvæske / Partikler Klor Buffer
Forsøgsdesign ,[object Object],[object Object],[object Object]
Effekt på dannelsen af biprodukter ved sænkning fra pH 7.5 til pH 6.5 * Ikke dannet, men kun analyseret ved pH 6  Dvs. trikloramin dannes tilsyneladende ikke på filtrene Kropsvæske Partikel Trihalometan   Haloeddikesyre –  Haloacetonitril   NCl 3  *
Toksicitet ,[object Object],[object Object],[object Object],[object Object],Plewa et al., Comparative Mammalian Cell Toxicity of N-DBPs and C-DBPs. In  Disinfection By-Products in Drinking Water: Occurrence, Formation, Helth Effects, and Control , American Chemical Society: Washington, DC, 2008.
Beregnet toksicitet ,[object Object],[object Object],[object Object]
Konklusion ,[object Object],[object Object],[object Object],[object Object]
Tak for opmærksomheden  ,[object Object],[object Object]

More Related Content

Featured

2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by HubspotMarius Sescu
 
Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTEverything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTExpeed Software
 
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsProduct Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsPixeldarts
 
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthHow Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthThinkNow
 
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfmarketingartwork
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024Neil Kimberley
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)contently
 
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024Albert Qian
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsKurio // The Social Media Age(ncy)
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Search Engine Journal
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summarySpeakerHub
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next Tessa Mero
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentLily Ray
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best PracticesVit Horky
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project managementMindGenius
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...RachelPearson36
 

Featured (20)

2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot2024 State of Marketing Report – by Hubspot
2024 State of Marketing Report – by Hubspot
 
Everything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPTEverything You Need To Know About ChatGPT
Everything You Need To Know About ChatGPT
 
Product Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage EngineeringsProduct Design Trends in 2024 | Teenage Engineerings
Product Design Trends in 2024 | Teenage Engineerings
 
How Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental HealthHow Race, Age and Gender Shape Attitudes Towards Mental Health
How Race, Age and Gender Shape Attitudes Towards Mental Health
 
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdfAI Trends in Creative Operations 2024 by Artwork Flow.pdf
AI Trends in Creative Operations 2024 by Artwork Flow.pdf
 
Skeleton Culture Code
Skeleton Culture CodeSkeleton Culture Code
Skeleton Culture Code
 
PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024PEPSICO Presentation to CAGNY Conference Feb 2024
PEPSICO Presentation to CAGNY Conference Feb 2024
 
Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)Content Methodology: A Best Practices Report (Webinar)
Content Methodology: A Best Practices Report (Webinar)
 
How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024How to Prepare For a Successful Job Search for 2024
How to Prepare For a Successful Job Search for 2024
 
Social Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie InsightsSocial Media Marketing Trends 2024 // The Global Indie Insights
Social Media Marketing Trends 2024 // The Global Indie Insights
 
Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024Trends In Paid Search: Navigating The Digital Landscape In 2024
Trends In Paid Search: Navigating The Digital Landscape In 2024
 
5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary5 Public speaking tips from TED - Visualized summary
5 Public speaking tips from TED - Visualized summary
 
ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd ChatGPT and the Future of Work - Clark Boyd
ChatGPT and the Future of Work - Clark Boyd
 
Getting into the tech field. what next
Getting into the tech field. what next Getting into the tech field. what next
Getting into the tech field. what next
 
Google's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search IntentGoogle's Just Not That Into You: Understanding Core Updates & Search Intent
Google's Just Not That Into You: Understanding Core Updates & Search Intent
 
How to have difficult conversations
How to have difficult conversations How to have difficult conversations
How to have difficult conversations
 
Introduction to Data Science
Introduction to Data ScienceIntroduction to Data Science
Introduction to Data Science
 
Time Management & Productivity - Best Practices
Time Management & Productivity -  Best PracticesTime Management & Productivity -  Best Practices
Time Management & Productivity - Best Practices
 
The six step guide to practical project management
The six step guide to practical project managementThe six step guide to practical project management
The six step guide to practical project management
 
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
Beginners Guide to TikTok for Search - Rachel Pearson - We are Tilt __ Bright...
 

Effekten af pH på dannelsen af biprodukter

  • 1. Effekten af pH på dannelsen af biprodukter - Måler vi de relevante biprodukter? Kamilla Hansen og Henrik R. Andersen
  • 2.
  • 3. Biprodukter Klor + Snavs Biprodukter Trihalometan(THM) Haloeddikesyre(HAA) Trikloramin(NCl 3 ) Haloacetonitril(HAN)
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9. Hvilke biprodukter? Biprodukter Trihalometan Haloeddikesyre Trikloramin Klor + Snavs Haloacetonitril pH klor dosis
  • 10.
  • 11.
  • 13.
  • 14.
  • 15. Effekt på dannelsen af biprodukter ved sænkning fra pH 7.5 til pH 6.5 * Ikke dannet, men kun analyseret ved pH 6 Dvs. trikloramin dannes tilsyneladende ikke på filtrene Kropsvæske Partikel Trihalometan   Haloeddikesyre –  Haloacetonitril   NCl 3  *
  • 16.
  • 17.
  • 18.
  • 19.

Editor's Notes

  1. Den kører ikke så godt
  2. Skal uddybes – Tilføjse mere !!