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TOXIC - EVK1-2001-00182. Barriers Against Cyanotoxins in Drinking Water. TOXIC. DVGW-Technology Center Water (TZW) Karlsruhe, Dresden branch. TOXIC - EVK1-2001-00182. Consortium of TOXIC. * member of EWRI (European Water Research Institutes). TOXIC - EVK1-2001-00182. Content. Introduction

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slide1

TOXIC - EVK1-2001-00182

Barriers Against Cyanotoxins in Drinking Water

TOXIC

DVGW-Technology Center Water (TZW) Karlsruhe, Dresden branch

slide2

TOXIC - EVK1-2001-00182

Consortium of TOXIC

* member of EWRI (European Water Research Institutes)

content

TOXIC - EVK1-2001-00182

Content
  • Introduction
  • Results of work packages
  • Published results
  • Case studies
guide lines for drinking water

TOXIC - EVK1-2001-00182

Guide lines for drinking water
  • WHO: 1.0 µg/L MCYST-LR
  • Australia: 1.3 µg/L MCYST-LR

Cylindrospermopsin (in discussion)

Anatoxin-a (in discussion)

Saxitoxin (in discussion)

  • Germany: 0.1 µg/L each single toxic compound
  • …..
slide5

TOXIC - EVK1-2001-00182

Figure 2.2: Strukture of Microcystins

slide6

TOXIC - EVK1-2001-00182

Figure 2.3: Strukture of Anatoxin-a, Saxitoxin and Cylindrospermopsin

slide7

TOXIC - EVK1-2001-00182

Structure of TOXIC

slide8

TOXIC - EVK1-2001-00182

Detailed Structure of TOXIC

work segments

TOXIC - EVK1-2001-00182

Work-segments
  • Production of standard materials
  • Design of evaluated analytical procedures
  • Lab scale experiments
  • Pilot scale experiments
  • Full scale monitoring
slide10

TOXIC - EVK1-2001-00182

WP 1 - Co-ordination and Project Management

Participants:TZW

  • Protocols
  • Reports
  • Public presentations
slide11

TOXIC - EVK1-2001-00182

WP 2 - Raw Water Quality

Participants:UDU, TZW, AAU, UAL, ULO

  • Data base of cyanobacteria and cyanotoxins in European waterbodies
  • Establishment of an Internet-Based Platform on cyanobacteria and-toxins in European waterbodies (cyanobacteria-platform.com)
  • List of suitable methods for early-warning of cyanobacterial bloom
slide12

TOXIC - EVK1-2001-00182

WP 3 - Analysis

Participants: AAU, UDU, ULO

  • Supply of pure cyanotoxin standards
  • Know-how transfer andinter-calibrationexercises
  • Provision of Standard OperationalPrecedures(SOPs) for cyanotoxin analysis (PPIA, ELISA, HPLC/UV, MS)
slide13

TOXIC - EVK1-2001-00182

WP 4 - Conventional Treatment

Participants:TZW, UDU, DHI, UEX, UAL, ULO

  • Test of different treatment trains
  • Cyanotoxin biodegradability and degradation kinetics (aerobic and anaerobic)
  • Risk assessment for treatment trains (intra- and extracellular toxins)
slide15

TOXIC - EVK1-2001-00182

WP 5 - Polishing Treatment: activated carbon

  • The application of activated carbon (PAC !!!) is one of the most efficient measure for dissolved toxin removal
slide16

The efficiency of activated carbon

dichloroethene

trichloroethene

atrazine

MCYST-LR

Activated carbon in mg/L

slide17

TOXIC - EVK1-2001-00182

WP 5+6 - Polishing and Final Treatment:

oxidation and disinfection

  • Kinetic data base for oxidation of cyanotoxins by oxidants (chlorine, chlor-amine, chlorine dioxide, permanganate, ozone)
  • Assessment of the influence of water qualityparameters (DOC, alkalinity, pH, temperature, ammonia) on toxin oxidation

Participants:EAWAG, UEX, WRc, UAL, ULO

slide18

TOXIC - EVK1-2001-00182

WP 5+6 Polishing and Final Treatment

slide19

TOXIC - EVK1-2001-00182

WP 7 - Alternative Techniques

Participants: Kiwa, UAL

  • Protocol of optimised membrane filtration procedures (ultrafiltration, nanofiltration, reversed osmosis)
slide20

TOXIC - EVK1-2001-00182

WP 7 - Alternative Techniques

Participants: Kiwa, UAL

Nanofiltration:

slide21

TOXIC - EVK1-2001-00182

Final project outcome – published results

Participants: all partners

  • Providing of an Analytical Manual (ISBN: 951-765-259-3)
  • Providing of a EuropeanBest Practice Guidance Manual for selection, design and operation of treatment plant, raw water monitoring and toxin analysis ([email protected])
  • Providing of a commercially available software package for treatment process simulation ([email protected])
in 2008 international guidance manual for the management of toxic cyanobacteria

TOXIC - EVK1-2001-00182

in 2008:International Guidance Manual for the Management of Toxic Cyanobacteria
  • Chapter 1 INTRODUCTION
  • Chapter 2 RISK ASSESSMENT IN SOURCE WATERS
  • Chapter 3 MANAGEMENT AND CONTROL OF CYANOBACTERIA IN SOURCE WATERS
  • Chapter 4 DEVELOPMENT AND IMPLEMENTATION OF A MONITORING PROGRAM
  • Chapter 5 INCIDENT MANAGEMENT PLANS
  • Chapter 6 TREATMENT OPTIONS
  • Chapter 7 CASE STUDIES

A paper of the Global Water Research Coalition

www.globalwaterresearchcoalition.net

conclusions

TOXIC - EVK1-2001-00182

Conclusions
  • Toxin removal (cell bound and dissolved) with high efficiency is possible !!!
  • The non calculable risk is the toxin release – an efficient additional barrier is the use of activated carbon.
many thanks

TOXIC - EVK1-2001-00182

Manythanks
  • Geoff Codd
  • Jussi Meriluoto
  • Tom Hall
  • Hanne Kaas
  • Urs von Gunten
  • Bas Heijman
  • Maria Rosa
  • Joanna Mankiewicz
  • Malgozata Taczynska †
  • Juan Acero
  • Jose Meneira
  • Gayle Newcomb
  • Bill Harding
  • Ingrid Chorus
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