Infolinka telefon Vodní zdroje +420 266 779 114
Česky English
Breadcrumb navigation

About us > Research and development > Techtool

TECHTOOL

PROJECT TITLE:

Integrative technology for assessment and enhancement of complete removal of chlorinated ethenes from groundwater (TECHTOOL)

FUNDED BY: Technology Agency of the Czech Republic
   
RECIPIENT: Institute of Microbiology of the CAS, v. v. i.
   
PARTNERS: AECOM CZ s.r.o.
  AQUATEST a.s.
  VODNÍ ZDROJE, a.s.
  École Polytechnique Fédérale de Lausanne - Switzerland
  EPS s.r.o.
  KHSanace s.r.o.
  Technical University of Liberec
   
PROJECT MANAGER: RNDr. Maria Brennerová, CSc.
for VODNÍ  ZDROJE a.s.: Mgr. Pavlína Hlaváčová
   
PROJECT DURATION: April 2012 – December 2015

PROJECT PLAN:

The project focuses on designing, testing and verification of a technology for assessment and enhancement of complete removal of chlorinated ethenes from groundwater. Other research outputs of potentially wide application include a new molecular biology method for the study of reductive dehalogenation of chlorinated ethenes during remediation as well as a multidisciplinary evaluation table listing the crucial parameters and their values, enabling to determine whether the required transformation of chlorinated ethenes is compromised by stagnation and accumulation of cis-DCE and VC. This table has the potential to become a simple practical tool not only for remediation companies bur also for supervisory and state administration bodies evaluating the remediation efficiency.

 Project activities performed in 2012:

  • Development of a unified methodology for the characterisation of sites contaminated with chlorinated ethens
  • Selection of hydrochemical and biological parameters to be long-term monitored for optimal evaluation of changes which take place at the site during remediation
  • Unified methodology for groundwater sampling for chemical, microbiological and molecular analyses; methodology of soil sampling and on-site measurement
  • For the sampling of biological materials from groundwater, a methodology for the use of stationary samplers with nanofiber carriers was developed in addition to classic sampling techniques
  • Start of groundwater sampling at selected sites using the methodology developed

For the TECHTOOL project, 7 sites contaminated with chlorinated ethens were selected: Karosa – gas storage facility, Karosa – Tomáškova cihelna, Velamos, Františkovy Lázně, Spolchemie, Jablůnkov, and the former OZ CHEMIE Horní Počernice – site remediated by VODNÍ ZDROJE.

Project activities performed in 2013:

  • Groundwater monitoring at selected sites – following the 2012 monitoring
  • Testing of the adaptability of biological materials during sampling and during the transport of nanocarrier samples from site to laboratory
  • Testing of the methodology for groundwater sampling to determine the Fe2+ a Mn2+ concentrations – problems with groundwater with high iron concentrations
  • Anaerobic cultivation of microbial communities from groundwater samples taken from the monitored hydrogeological environments
  • Statistical analysis of multivariable ecological parameters
  • Project team workshop focusing on the remediation criteria and methods for the monitoring end effective management of on-site reductive dehalogenation of chlorinated ethens

 

Lokalita OZ CHEMIE Horní Počernice – monitoring domovní studny On-site measurement of the parameters in a flow chamber
   
On-site measurement in a flow chamber Protection of samplers in the sampled water during monitoring

 

Project activities performed in 2014:

  • Ongoing groundwater monitoring at the Techtool project test sites including PCR analysis and anaerobic cultivation, completion of a unified database
  • Designing a technology for complete removal of chlorinated ethens based on the information provided by the comprehensive study
  • Selection of an appropriate CE site for pilot testing, proposal and launch of the pilot test of the technology
  • Organisation of a thematic workshop as part of the Czech-Swiss biotechnological conference BioTech 2014 - Workshop: „Biotechnology for controlled remediation of sites contaminated with chlorinated ethenes: Czech - Swiss teamwork joins research with practice“. The Techtool project was presented with posters and papers in English

 

Project activities performed in 2015:

  • Completion of the groundwater monitoring activities at the Techtool project test sites
  • Final evaluation of tests determining the Fe2+ concentrations in groundwater – monitoring of Fe concentrations is important for the evaluation of the remediation done by the ERD method. However, the determination itself is quite problematic. Therefore a suitable methodology was suggested.
  • Completion of the pilot testing activities of the technology for complete removal of chlorinated ethens on the test site Karosa – Degreasing facility
  • Final evaluation of the technological methods used in pilot testing, statistical evaluation of the results obtained
  • Creation of a multicriterial table of the key parameters of the geological environment for the monitoring of the process of reductive dehalogenation of chlorinated ethens
  • Development of the optimal technological process for the complete transformation of CE into final non-toxic products based on the results of the entire project (geological, hydrochemical, chemical, microbiological, molecular-genetic, and statistical analyses as well as the performed pilot testing); the technology was successfully tested on the test site Karosa – Degreasing facility

 

PROJECT RESULTS:

  • V001 – Thematic workshop as part of the conference „BioTech 2014“
  • V002 – Development of a new molecular biology method for the study of biological reductive dehalogenation during remediation
  • V003 – Active participation in the conference Aqua ConSoil 2015
  • V004 – Database of analytical information concerning the pilot sites
  • V005 – Fermentometer – utility model
  • V006 – Active participation in scientific conferences and publications in professional journals
  • V007 – Technology for assessment and enhancement of complete removal of chlorinated ethens from groundwater

 

The key result of the Techtool project is a verified technology for complete removal of CE from groundwater. The Techtool technology has identified critical points in the ERD process and gives detailed instructions for the proper conduct of on-site measurements and environmental sampling in order to obtain relevant information for achieving the optimal ERD process management. The technology recommends, to a reasonable extent, practical application of the methods of molecular biology and statistical analysis even to well-informed laypeople. The technology further includes a detailed narrative description of each step as well as a graphical representation in the form of a flow chart. In addition, it contains a multicriterial table comprehensible even for laypeople that can be used for a quick insight in evaluating the state of transformation of ethens at a given site. The quality of the result has been successfully confirmed at the verification site and demonstrated by achieving the remediation limits at each of the monitored wells.

 

Contact us

Your personal information will only be used to respond to you. For more information, see principles of processing personal data.