Water & Wastewater Treatment Magazine
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24 | JULY 2018 | WWT | www.wwtonline.co.uk The Works: catchment management THE FUTURE K elly Hewson-Fisher hopes to see catchment management growing in popularity going into AMP7 and says it is "certainly being talked about more as an alternative solution" at Anglian. The company has worked with partners across the continent on the EU- funded FAIRWAY project, which began in June last year, to learn how other countries interpret legislation and how they collaborate with the agricultural sector to ensure water quality meets drinking water standards. Anglian is making strides in exploring new ideas on the catchment management front, too. Working in conjunction with the University of Lincoln, the company is setting up a demonstration site, due to open later this year, that farmers can visit to examine a bioŠ lter, a biobed and a Heliosec Š rst-hand and gain expert advice. It will also try to tackle other sources by exploring ways to educate gardeners and allotment holders on how to properly use and dispose of pesticides. "It's not about banning pesticides," she says. "There is a place for them in farming and allotments – it's just about how we can work with the catchments to ensure safe and responsible use." Kelly Hewson-Fisher has led Anglian Water's catchment management work at Winterton In conjunction with the University of Lincoln, Anglian Water is setting up a demonstration site for farmers that give them the chance to see the following pesticide-prevention measures: • Heliosec: Developed by Syngenta in France, Heliosec is a roofed, galvanised and plastic-lined steel frame that collects the agrochemical residue from the spraying equipment during the cleaning process and then uses solar radiation and wind to remove the water through evaporation. The user can then dispose of the le over residue. The system involves a dewatering system, including a hermetic tank, and so ware to assess how it should operate according to its location. The Heliosec costs in the region of £4,000. • Biobed: Developed in Sweden in the early 1990s, biobeds are excavated pits fi lled with a mixture of straw (50 per cent), soil (25 per cent) and peat-free compost (25 per cent) and then turfed over. Research has shown they can cut pesticide levels in wastewater around 100,000 fold using enhanced microbial activity. Biobeds cost in the region of £3,500 to £7,000. • Biofi lter: Like biobeds, biofi lters use enhanced microbial activity through a mixture of straw, soil and peat-free compost, but they tend to be smaller, are built above ground and use robust containers – o en referred to as IBCs – which are stacked, with the fl uid passing through from top to bottom. Biofi lter costs are estimated to be around £1,000 to £2,500. FARM FIXES including a hermetic tank, and so ware to assess how it should operate according to its location. The Heliosec costs in the region of £4,000. • Biobed: Developed in Sweden in the early 1990s, biobeds are excavated pits fi lled with a mixture of straw (50 per cent), soil (25 per cent) and peat-free compost (25 per cent) and then turfed over. Research has shown they can cut pesticide levels in wastewater around 100,000 fold using enhanced microbial activity. Biobeds cost in the region of £3,500 to £7,000. • Biofi lter: Like biobeds, biofi lters use enhanced microbial activity through a mixture of straw, soil and peat-free compost, but they tend to be smaller, are built above ground and use robust containers – o en referred to as IBCs – which are stacked, with the fl uid passing through from top to bottom. Biofi lter costs are estimated to be around £1,000 to £2,500.