Wastewater Management In Developing Countries - WIPO

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Wastewater Management inDeveloping CountriesDr. Mushtaq Ahmed Memon(mushtaq.memon@unep.or.jp)Programme Officer , UNEP IETC

Overview Paradigm shift and technology needs Assessment of demand Challenges and opportunities UNEP IETC work

Paradigm Shift and Technology Needs20th CENTURY21st w do we get rid of our wastewaterefficiently with minimum damage topublic health and the environment?”“How do we handle wastewaterincluding rainwater to augmentwater supply?”

Water and Sanitation in AsiaSource: .pdf

Water and Sanitation CoverageSource: World Bank 1997

Water Availability and Water Pollution

Reuse, recycle & disposal ESTsquality and treatment issuesevery drop counts1.Domestic rainwater use2.On-site treatment of grey water3.Constructed wetlands4.On-site and near-site treatment of black water and mixedsewage5.Separating rainwater from sewer systems6.Environmentally sound centralized sewage treatment indeveloping countries3. ESTs Reuse

Municipal Wastewater ReuseLow - Cost Wastewater TreatmentIrrigation / naerobicSludgeSludgeBlanketBedMaturation Ponds(in series)Facultative mentReservoirsTreatment athogensremovalremovalIrrigation / ReuseConventional Wastewater TreatmentPreliminaryPrimarySecondaryTertiary / AdvancedIrrigation / ReuseIrrigation / ReuseIrrigation / sActivatedSludgeActivated ProcessingProcessingDisposal / ovalRemovalNitrificationNitrification movalRemovalCarbonAdsorptionCarbon rseOsmosisReverse istillationIonIonExchangeExchange

Wastewater TreatmentWW treatment processesAeratorChlorine TankEqualizationUnitPrimarysedimentation tankTrash screeningAeration tankSecondarySedimentation tankChlorine ifugalThickenerMFiltration TankReuse water treatmentprocessesMReuse watertankFiltrate TankSludge TankTo aeration tankAdding PolymerMMSludge DigestionTankTo centrifugalThickenerPolymer tankSludge ThickernerOdorRemoval UnitSludge Treatment processesFertilizerWater Circulating tankPrimary Composting AreaSecondary CompostingArea

INTERNATIONAL ENVIRONMENTAL TECHNOLOGY CENTRE国際環境技術センター The InternationalEnvironmental TechnologyCentre (IETC) is a branch ofthe Division of Technology,Industry, and Economics(DTIE) and is leading thewaste management portfoliowithin UNEP. UNEP IETC focuses onidentifying and showcasingenvironmentally soundtechnologies (ESTs) andmanagement practices,primarily in relation to waste.UNEP IETC is located inOsaka, Japan.

Wastewater Reuse

Wastewater Reuse Publication 1. Introduction2. Wastewater Reuse as Environmentally Sound Technologies (ESTs)3. Requirements for Wastewater Reuse3-1. Basic Principles of Wastewater Treatment3-2. Public Health Risk Minimization4. Wastewater Reuse Applications4-1. Wastewater Reuse for Agriculture4-2. Wastewater Reuse for Industry4-3. Urban Applications4-4. Wastewater Reuse for Environmental Water Enhancement4-5. Groundwater Recharge5. Key Factors for Establishing Initiatives6. Building Capacity for Water and Wastewater Reuse6-1. Capacity Building: Human Resource Development6-2. Capacity Building: Policy and Legal Framework Development6-3. Capacity Building: Institutional Development and Organizational Management6-4. Capacity Building: Financing6-5. Capacity Building: Raising Public Awareness and Participation7. Moving Forward12

Wise-water & Every Drop Counts

Phyto-technologies

Sustainability Assessment of ionResources/Publications/tabid/56265/Default.aspx

Resource AugmentationDemonstration Project in VietnamCommunityIndustryWater & Energy DemandRainwater HarvestingWasteBiomassCompostWastewater ReuseAgriculture

Project Activities Background Studies & Selection of the IndustrySeptember October 2005 Awareness Raising / Information DisseminationNovember 2005 January 2006 Data collectionJanuary 2006 – March 2006 Identification of ESTs for rainwater harvesting, wastewaterreuse, and compostingJanuary 2006 – April 2006 Designing ESTs for local conditionsJanuary 2006 – June 2006 Implementing project components based on ESTsApril 2006 – February 2007 Collection and disseminations of lessons learned17

International EnvironmentalTechnology Centre2-110 Ryokuchi KoenTsurumi-ku, Osaka 538-0036 JapanTel : 81 (0) 6 6915 4581Fax : 81 (0) 6 6915 0304E-mail : ietc@unep.orgWeb: http://www.unep.org/ietcPartnership,Partnership andPartnershipThank You

Wastewater Reuse Applications 4-1. Wastewater Reuse for Agriculture 4-2. Wastewater Reuse for Industry 4-3. Urban Applications 4-4. Wastewater Reuse for Environmental Water Enhancement 4-5. Groundwater Recharge 5. Key Factors for Establishing Initiatives 6. Building Capacity for Water and Wastewater Reuse 6-1 .

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