잉글랜드 남부 수도시설이 미래의 식수 저장을 위해 워딩(Worthing)에 지하수 대수층 저장·충전(ASR) 프로젝트를 계획하고 있다고 밝혔다.

미국에서는 널리 사용되고 있고 중동에서도 프로젝트를 진행하고 있는 상태이며, Thames Water나 Yorkshire Water 같은 다른 시설들도 절차를 평가 중에 있다.

워딩을 기점으로 한 남부 해안에서 겨울 동안 강물을 취수하고 처리해 대수층에 수송할 계획이며, 수송된 물은 필요할 때까지 그곳에 저장된다.

 

 

 

Utility Southern Water is planning an aquifer storage and recovery (ASR) project in the town of Worthing to help store drinking water for future use.

 

Although widely used in the US and with projects underway in the Middle East (see WWi article), other utilities such as Thames Water and Yorkshire Water are also evaluating the process.

 

For South Coast based Worthing, the ASR plan would involve taking river water during the winter, treating it and then transferring it to an aquifer to be stored until needed, for example in the summer months.

 

Southern Water’s pilot scheme would take place on the former Charmandean Quarry, near Lyons Farm retail park. It would involve drilling a new borehole on a working site of around 20m x 30m and laying a temporary water main and sewer.

 

A planning application is expected to be submitted to Worthing Borough Council and if successful, work on the ASR project would begin in early 2015.

 

The pilot borehole would take about four months to build, after which there would be a period of testing to help establish how much water a permanent scheme could supply, how sustainable it would be and the cost of building and running it.

 

The ASR project is part of the utility’s wider 25-year Water Resources Management Plan and was voted the most popular option for providing water, ahead of desalination by 1000 customers surveyed.

Meanwhile, in its Water Resources Programme, Thames Water said that ASR is “considered an important contingency option” and that there are a number of “sites in the Thames catchment were ASR could be viable”.

 

[출처 = Water World / 2014년 11월 12일]