The

 

Knowledge

store

Treatment

Remote Sensing for Catchment Management Phase 2

Reference: 15/DW/14/12
ISBN: 1 84057 791 6
Published Date: 22/09/2015

The benefits of catchment management are widely recognised within the water industry. Understanding the delivery pathways of sediment, pesticides and nutrients, and the timing of diffuse pollution is a key challenge to achieving drinking water standards and improving the quality of watercourses.
 
The research has developed new approaches to catchment management, looking at land in a different way using a combination of remote sensing imagery and ground-based surveys. In circumstances where methods such as walkover surveys may not be appropriate, for example in upland and larger catchments, remote sensing tools offer an alternative way of identifying field scale solutions. The use of imagery is also very effective when engaging with landowners.
 
An approach has been developed which starts with readily available imagery from satellites and aerial platforms to identify potential risk in a catchment, and which then focuses in on sub-catchment and field scale solutions that require more detailed imagery.  

Price: £400  

Pesticide Risk Mapping and Catchment Interventions - Phase 1

Reference: 15/DW/14/11
ISBN: 1 84057 788 6
Published Date: 06/08/2015

Pesticides used in farming that are difficult to remove by existing potable water treatment processes can cause drinking water to fail EU water quality standards. This project developed a pesticide risk mapping methodology for mobile herbicides and metaldehyde, transparent to all stakeholders, for the identification of high risk sites where catchment intervention stands a good prospect of addressing potential risk and making significant improvements in raw water quality.  The risk mapping approach, which builds on existing risk mapping approaches, has been implemented at both a 1 km grid resolution covering the UK and field level scale for example catchments.  Accompanying assessments of interventions that might address losses of pesticide from high risk sites have been outlined along with their likely effectiveness, barriers to uptake and typical costs of implementation.  Use of these mapping resources will aid targeting of limited resources and catchment stakeholder engagement programmes.

Please click here to download a free report, produced to promote dissemination of the risk mapping approach within the stakeholder community. This downloadable report only covers the risk mapping tasks within the project.

Price: £600  

Finding Alternatives and Less Shortage Risk Chemicals in Water Treatment

Reference: 15/DW/14/10
ISBN: 1 84057 781 9
Published Date: 30/07/2015

Water treatment chemicals are critical to the provision of safe, wholesome drinking water; a shortage could present a substantial risk to water supply. This project identified chemical and non-chemical alternatives that could reduce dependence on a number of key water treatment chemicals, including phosphoric acid, polyelectrolytes and chlorine gas.

The effects of future chemical shortages could be mitigated by focused research and development on alternative chemicals and technologies, and appropriate forward planning by water companies.

Price: £300