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1 Marco Bruni, seecon international gmbh Water PollutionMarco Bruni, seecon international gmbh
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3 ContentsIntroductionWhat is Water PollutionWastewater’s Impact on Water PollutionReducing Water Pollution through Wastewater Recycling and through efficient Wastewater ManagementFurther Causes of global Water PollutionResponses to Water PollutionReferences
4 Water – Essential for Life 1. IntroductionWater – Essential for LifeWater is essential for all aspects of life and the defining feature of our planet.Pollution from agricultural, industrial and domestic wastewater is making water resources, both surface water and groundwater, increasingly scarce and decreasingly poor in quality. (DOPP n.y.)In some regions of the world, rivers and seas have become polluted in a way that the ecosystems and the health of plants, animals, and humans are heavily threatened. The Global Water CrisisSource: [Accessed: ]
5 The Global Water Crisis 1. IntroductionThe Global Water CrisisDriversPopulation growthUrbanisationIndustrialisationIncreasing and expanding food production}Pressure on water resourcesIncrease of the unregulated or illegal discharge of contaminated water within and beyond national borders(CORCORAN et al. 2010)
6 Just because you can’t see it doesn’t mean it isn’t there 1. IntroductionJust because you can’t see it doesn’t mean it isn’t thereSource: [Accessed: ]
7 Definition and Sources 2. What is Water Pollution?Definition and SourcesWater pollution occurs when materials likeNutrients (Phosphorus, Nitrogen, etc.)Organic matter (Carbon)Acids, Toxics, OilPlasticsEtc.are released in to the natural environment, degrading the quality of the water for other users. Water pollution includes all of the waste materials that cannot be naturally broken down by water.Pollution can be caused by nature itself, such as when water flows through soils with high acidities. But much more often, human actions are responsible for the pollutants that enter the water.Main source of water pollution: Wastewater!
8 Facts about Wastewater and Wastewater Treatment 3. Wastewater’s Impact on Water PollutionFacts about Wastewater and Wastewater TreatmentEvery day, 2 million tons of sewage, industrial and agricultural waste are released into the world’s water system. (PACIFIC INSTITUTE 2010)Up to 90% of the world’s wastewater (domestic, industrial and agricultural) in coastal zones is released untreated (CORCORAN et al. 2010)Source: CORCORAN et al. (2010)
9 Consequences of Water Pollution due to Wastewater 3. Wastewater’s Impact on Water PollutionConsequences of Water Pollution due to WastewaterDecrease of biodiversity, natural resilience and the capacity of the planet to provide ecosystem services.Severe health issues for local populationThreat of access to safe drinking waterPollution of coastal ecosystems and hence diminishing yields of fisheries
10 3. Wastewater’s Impact on Water Pollution Further ImplicationsContaminated water due to inadequate wastewater managementis one of the main restrictions to development.increases poverty due to high resulting costs for health careSource: CORCORAN et al. (2010)
11 Through efficient Wastewater Management 4. Reducing Water PollutionThrough efficient Wastewater ManagementToday, most infrastructure regarding sanitation lacks of adequate maintenance and is, hence, in a poor condition.Instead of the construction of conventional wastewater treatment facilities, a smart and innovative wastewater management can improve the livelihood of people in developing countries substantially and in a sustainable way.Thinking in cycles rather than in linear processes ‘Cradle to Cradle’Source: [Accessed: ]
12 An Example of a Wastewater Management Intrument: Recycling 4. Reducing Water PollutionAn Example of a Wastewater Management Intrument: RecyclingFor many purposes, water can be reused rather than ‘disposed’Example: Wastewater reuse in agricultural productionThe use of contaminated water in agriculture for irrigation and fertilising purposes can be managed through the implementation of various barriers which reduce the risk to both crop viability and human health.Particularly in arid and semiarid regions and urban areas where unpolluted water is a scarce resource, irrigation using wastewater is rather common: 10% of the world’s population relies on food grown with contaminated waste water. (CORCORAN et al. 2010)Advantages:Alternative fertiliser for food production. Improvement of livelihood.Reduction of water pollution
13 Water Pollution is mainly but not only about Wastewater 5. Further Causes of global Water PollutionWater Pollution is mainly but not only about WastewaterBesides wastewater, many other factors contribute to the global water pollution:Industrial wasteMarine dumpingOil pollutionRadioactive wasteUnderground storage leakagesGlobal WarmingAtmospheric depositionEutrophication
14 5. Further Causes of global Water Pollution Industrial wasteMarine dumpingSource: [Accessed: ]Source: [Accessed: ]Oil spillEutrophicationSource: http://1.bp.blogspot.com/_Hj5-4y4gHVw/S9cRJ9Fsz3I/AAAAAAAAIjM/IHM42S3Bo_w/s1600/IXTOC_I_oil_well_blowout_2.jpg [Accessed: ]Source: http://sites.duke.edu/biology217_01_s2011_mkg14/files/2011/04/croaker_bloom1.jpg [Accessed: ]
15 6. Responses to Water Pollution StrategiesEffective wastewater management can include:Technical measures, Legal instruments, Economic instruments and Co-operation among stakeholders from different sectors and levelsParadigm shiftSingle sector approaches such as wastewater treatment or river basin management are limited in their actions. To save and recycle water, regain resources and to protect aquatic ecosystems, the whole water cycle needs to be taken into account in an integrated, holistic way.Successful and sustainable management of wastewater requires a cocktail of innovative approaches that engage the public and private sector at local, national and transboundary scales.Planning processes should provide an enabling environment for innovation, particularly at the community level.
16 Integrated, holistic Approach 6. Responses to Water PollutionIntegrated, holistic ApproachConsider wastewater as a resource!
17 7. ReferencesCORCORAN, E. (Editor); NELLEMANN, C. (Editor); BAKER, E. (Editor); BOS, R. (Editor); OSBORN, D. (Editor); SAVELLI, H. (Editor) (2010): Sick Water? The central role of wastewater management in sustainable development. A Rapid Response Assessment. United Nations Environment Programme (UNEP), UN-HABITAT, GRID-Arendal. [Accessed: ].DOPP (Editor) (n.y.): TED Analysis Cases. Sea Water Pollution - Cases Analysis. Washington: American University. [Accessed: ].PACIFIC INSTITUTE (Editor) (2010): World Water Quality Facts And Statistics. Oakland: Pacific Institute. [Accessed: ].
18 “Linking up Sustainable Sanitation, Water Management & Agriculture” SSWM is an initiative supported by:Created by: