Water Availability And Water Reuse: A New Approach For .

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Water Availability and Water Reuse:A new approach for Water ResourcesManagement

1Introduction of Water Reuse Systems impactsWater Resources Management23Case – Study in BrazilWater Availability

1Introduction of Water Reuse Systems impactsWater Resources Management23Case – Study in BrazilWater Availability

1Introduction of Water Reuse Systems impactsWater Resources Management23Case Study in BrazilWater Availability

Current Water Resources ManagementDesigned to attend the human demand

Current Water Resources ManagementWTP - Water Treatment/Purification Plant

Current Water Resources ManagementWTP - Water Treatment PlantAmong differentusers

Current Water Resources ManagementWWTPWastewaterTreatment PlantWTP - Water Treatment PlantWWTP - Wastewater Treatment Plant

Current Water Resources ManagementWWTPWater BodiesWTP - Water Treatment PlantWWTP - Wastewater Treatment Plant

Current Water Resources ManagementLinear EconomyWTP - Water Treatment PlantWWTP - Wastewater Treatment Plant

Water Resources Management withWater ReuseDiversity of “water pathways”Treated household wastewaterreuse by Factories or AgricultureCircular EconomyWTP - Water Treatment PlantWRT - Water Reuse Treatment

Water Resources Management withWater ReuseImpactsWater Availability on Rivers Decrease of water withdrawal - Quantity Decrease of treated wastewater discharge into rivers - Water QualityWater Users Increase of water availability to other users - Quantity and Quality

Water AvailabilityWater Flow / VolumeConcentrations(organic matter, phosphorus,heavy metals, nitrogen)Water Users Demand

Case Study: Iguazu River - Brazil

Water Resources in BrazilHas the largest freshwater supply in the world, with12 percent of the entire planet’s total volumeFaced a water crisis between 2012 and 2016 - SãoPauloAquapolo – Water Reuse System in São Paulo increased water demand, poor water quality of local rivers shortage of rainfall Lack of directives concerning water reuse andintegrated Water Resources Management São Paulo has a Water Reuse System in theindustrial poleTreated household wastewater is reused bythe industrial pole. 1000 L/s

Iguazu River Currently there is an Atypical Drought Periodin South Brazil due to rainfall shortage Poor Water Quality - measured BODconcentration ranging from 25 to 65 mg/L inCuritiba region Industrial pole is expanding and the waterdemand will also increase

Iguazu River Currently there is an Atypical Drought Periodin South Brazil due to rainfall shortage Poor Water Quality - measured BODconcentration ranging from 25 to 65 mg/L inCuritiba region Industrial pole is expanding and the waterdemand will also increase

Iguazu River Currently there is an Atypical Drought Periodin South Brazil due to rainfall shortage Poor Water Quality - measured BODconcentration ranging from 25 to 65 mg/L inCuritiba region Industrial pole is expanding and the waterdemand will also increase

Iguazu River Currently there is an Atypical Drought Periodin South Brazil due to rainfall shortage Poor Water Quality - measured BODconcentration ranging from 25 to 65 mg/L inCuritiba region Industrial pole is expanding and the waterdemand will also increase

Other users along the river affect rivers WaterAvailability Water Withdrawn Wastewater DischargeIndirect Water ReuseIn Iguazu River there is already an indirectwater reuse process in which concentrations oforganic matter from released effluentsupstream have not been fully assimilated untilthe next user

River SeasonalWater Availability Rain Seasons Water Quality Variability Less water, Less dilution

Solutions for the development regionwhere demand for water is increasing Abstracted Water Rate, Water Reuse from WWTP and from FactoriesReduce the load released into riverWater reuse system from treated wastewater and theFactories internal water recycling might reduce the loadof 567 tons/year of organic matter into Iguazu RiverThis also allows the other downstream users to have abetter water quality

Final RecommendationsReduce FirstReducing should always be the first option. Water lossesin: Water distribution Factory processesWater availability analysis is fundamental for transforming water resources management into anintegrated and circular economy model.There are several pathways that water may follow amongusers with water reuse systems.The determination of the best economic andenvironmental efficiency should be made based on theanalysis of water availability that includes the quantity,quality and purpose of water.

Elisa Stefan,MSc. Water Resources Engineering at University Federal do Paranaelisasstefan@gmail.com

Water Availability and Water Reuse: A new approach for Water Resources Management. . Water reuse system from treated wastewater and the Factories internal water recycling might reduce the load . PowerPoint Presentation Author: Elisa Stefan Created Date:

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