Storm Water and Water Scarcity Poster PDF

Preview

Summary

Assessment 4 poster for env118.
Stormwater as a solution for water scarcity ...

Description

Natasha Tovo, Macquarie University 1.

Water Scarcity. Why is it a problem?

Australia's water cycle has been influenced by climate change leading to more extreme droughts and floods. Hotter conditions leads to declines in soil moisture, drying in agricultural heartlands and put pressure on urban water supplies. According to a report by Water Aid, almost 60% of the world's population live in places of high water stress. The 32 months from Jan 2017 to Aug 2019 has been the driest on record averaged over the Murray-Darling Basin causing severe consequences for dependent regions.

3. How can storm water treatment be implemented? Local Hyd Hydrrody odyna na namic mic separ separaator orss are structures designed to remove suspended sediments, oils, and floatable debris by physical processes. They are an underground structure that is used predominantly in zones with large paved areas, making it suitable for the urban city. It relies on sedimentation and flotation to remove and retain pollutants, and often includes proprietary flow controls

Regional NSW can be using substantial volumes of local stormwater instead of importing surface water from irrigation districts to assist in periods of draught as evident in the levels of storm water in Ballarat.. Sand filte filterrs can be constructed in a concrete structure or designed into a small detention area. Capable of excellent pollutant removal but also susceptible to clogging and can be costly to maintain (Stormwater treatment)

Global

2. What's the potential solution and why is this a viable solution? Storm water treatment is a viable solution to water scarcity as it is the catchment of water flowing over ground surfaces as a direct result of rainfall. Australia's urban areas produce around 3000 gigalitres of average annual run off which without treatment can carry pollutants such as litter, soil, organic matter, pesticides, oil and metals. Australia is currently only using approximately 3% of storm water and rainwater. There are multiple variations of storm water treatment that can be used for different contexts.

The use of gr green een roof oofss has become consistently more popular over the world. They collect heavy rainfall, filter through the soil and allow catchment of storm water as well as reducing risk of flood. They absorb rainwater and reduce radiant surfaces which allows buildings to cool and reduce the need for air-conditioning which in turn helps limit energy consumption. .

4. What are the potential risks and impacts on sustainability and the human/environment relationships? Risks • Faecal contamination contains high viral risks that are not easily removed by sedimentation or sieving. • Ground water and surface water pollution by run off if not collected appropriately

Sustainability •Increase sustainability by supporting the greening of cities by reducing the volume of storm water that enters waterways. •‘Productive vegetation and increased carbon sequestration’; •Improvements in 'air quality through deposition’ •Provide more water that can support draught prone areas •Decrease our reliance on river systems Human/Environment Relationships Increased greening of cities through the use of stormwater could result in: •improved human thermal comfort', leading to reduced heat-related stress and • mortality •improved landscape amenity

Bibliography •

•

•

• •

•

•

•

• •

•

• • • •

‘Stormwater Treatment: A look at various methods, hydrodynamic separators’ 2002, Water & Wastes Digest, lased accessed 12 October 2019, https://www.wwdmag.com/filters-sandgravel/stormwater-treatment-look-various-methods-hydrodynamic-separators Berghage, R, Beattie D, Jarrett, A, Thuring, C, Razaei, F, O’Connor, T 2009 Green Roofs for Stormwater Runoff Control, viewed 8 October 2019 http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.176.7646. Birch, G 2010, ‘Contaminated soil and sediments in a highly developed catchment-estuary system (Sydney estuary, Australia): an innovated stormwater remediation strategy, Journal of Soils and Sediments, vol 11, pp 194-208. Department of Environment and Conservation NSW 2006, Managing Urban Stormwater – Harvesting and Reuse, viewed 10 October 2019, Dongfang, Z 2017, ‘Germany’s green roofs offer lesson climate change adaptation’, China Dialogue, viewed 8 October 2019, https://www.chinadialogue.net/article/show/single/en/9979-Germany-s-green-roofs-offerlesson-on-climate-change-adaptation. Gulliver, J, Erickson, A, Weiss, P 2010, ‘Stormwater Treatment Process’, Stormwater Treatment: Assessment and Maintenance, University of Minnesota, St. Anthony Falls Laboratory. Minneapolis https://www.environment.nsw.gov.au/-/media/OEH/CorporateSite/Documents/Water/Water-quality/managing-urban-stormwater-harvestingreuse-060137.pdf. Marasalek, J & Schreir, H 2009, ‘Innovation in Stormwater Management in Canada: The Way Forward, Water Quality Research Journal, 44(1), viewed 1 October 2019, https://iwaponline.com/wqrj/article/44/1/v/39658/Innovation-in-Stormwater-Managementin-Canada-The Mitchell, V, O’Connor, J, Petterson, S, Kaucner C, Roser, D, Davies C, Ashbolt, N 2006, Quantifying Stormwater Recycling Risks and Benefits : Summary Report, prepared by Monash University. Parliament of Australia 2015, Stormwater management in Australia, Environment and Communications, Environment and Communications References Committee, Canberra. Steffan,, W, Vertessy, R, Dean, A, Hughes, L, Bambrick, H, Gergis, J, Rice, M 2018, Deluge and Drought: Australia's Water Security in a Changing Climate, Climate Council, viewed 29 September 2019, https://www.climatecouncil.org.au/wp-content/uploads/2018/11/ClimateCouncil-Water-Security-Report.pdf Svinos, I 2018, The Last Drop: Protecting Australia’s Water Supply, viewed 29 September 2019 http://www.internationalaffairs.org.au/resource/the-last-drop-protecting-australiaswater-supply/ Stamp, Elizabeth, '16 Spectacular Green Roofs Around the World', viewed 3 October 2019,

Neptune COatings, 'Green Roofs', viewed 4 October 2019 ,...