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URBAN STREAM URBAN STREAM REHABILITATIONREHABILITATION
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CASE STUDIESCASE STUDIES
AESTHETICSAESTHETICS
SELECTION OF OBJECTIVES SELECTION OF OBJECTIVES FOR REHABILITATION SCHEMES FOR REHABILITATION SCHEMES
TECHNIQUES OF TECHNIQUES OF REHABILITATIONREHABILITATION
SOCIAL APPRAISALSOCIAL APPRAISAL
TOOLS FOR ASSESSING POTENTIALTOOLS FOR ASSESSING POTENTIAL
INDICATORS OF SUCCESSINDICATORS OF SUCCESS
UURRBBAANN
SSTTRREEAAMM
RREEHHBBIILLIITTAATTIIOONN
BENEFITS / IMPACTSBENEFITS / IMPACTS
INTRODUCTION, OBJECTIVES & INTRODUCTION, OBJECTIVES & IMPACTSIMPACTS
OPTIONS FOR REHABILITATIONOPTIONS FOR REHABILITATION
SITE SITE MONITORINGMONITORING
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INTRODUCTION, INTRODUCTION, OBJECTIVES AND OBJECTIVES AND
IMPACTSIMPACTS
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Cropland, Cropland, AnimalsAnimals
Rural Rural homeshomes
Suburban Suburban developmedevelopmentnt
Industrial Industrial developmendevelopmentt
UrbanUrban
1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Development of the urban areasDevelopment of the urban areas
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Early Civilisation - Living in Nature – River banks free Early Civilisation - Living in Nature – River banks free to moveto move
and water may floodand water may flood
Phases in Unsustainable Urban DevelopmentPhases in Unsustainable Urban Development
Living Living in in
cavescaves
Danger in Danger in naturenature
1. Introduction, objectives & impacts1. Introduction, objectives & impacts
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Early Civilisation - Living in Nature - Low Level of Early Civilisation - Living in Nature - Low Level of PollutionPollution
Phases in Unsustainable Urban DevelopmentPhases in Unsustainable Urban Development
Living Living in in
cavescavesDefecatioDefecatio
n in n in naturenature
1. Introduction, objectives & impacts1. Introduction, objectives & impacts
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Moving to Streams - Beginning of Moving to Streams - Beginning of ConflictsConflicts
Phases in Unsustainable Urban DevelopmentPhases in Unsustainable Urban Development
Dangers Dangers in naturein nature
1. Introduction, objectives & impacts1. Introduction, objectives & impacts
FloodFlood
ErosionErosion
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Moving to Streams - Beginnings of Moving to Streams - Beginnings of PollutionPollution
Phases in Unsustainable Urban DevelopmentPhases in Unsustainable Urban Development
DefecatioDefecation in n in
naturenature
GarbageGarbage
1. Introduction, objectives & impacts1. Introduction, objectives & impacts
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Uncontrolled Urbanisation (Occupation) of Flood Plain Uncontrolled Urbanisation (Occupation) of Flood Plain Streams as Recipients of Solid & Liquid Wastes Streams as Recipients of Solid & Liquid Wastes Problems with flooding and banks fixingProblems with flooding and banks fixing
Phases in Unsustainable Urban DevelopmentPhases in Unsustainable Urban Development
Liquid & Liquid & Solid Solid wastewaste
DefecatioDefecation in n in
naturenature
1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Bank Bank protectionprotection
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Liquid & Liquid & Solid Solid wastewaste
Channelisation of Urban Streams Channelisation of Urban Streams Recipients of Solid & Liquid Wastes - Wastes & Stormwater Recipients of Solid & Liquid Wastes - Wastes & Stormwater Problems with Flooding & Clogging Problems with Flooding & Clogging
Phases in Unsustainable Urban DevelopmentPhases in Unsustainable Urban Development
1. Introduction, objectives & impacts1. Introduction, objectives & impacts
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Sewers Connected to Channelised Streams
Phases in Unsustainable Urban DevelopmentPhases in Unsustainable Urban Development
1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Houses in Flood Prone Area
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Uncontrolled Urbanisation in the Upper Parts of a Stream Building of Separate Sewers - Problem of Inlet
Clogging
Phases in Unsustainable Urban DevelopmentPhases in Unsustainable Urban Development
1. Introduction, objectives & impacts1. Introduction, objectives & impacts
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Renaturalisation of Urban Streams
Back to Nature
Phases in Unsustainable Urban DevelopmentPhases in Unsustainable Urban Development
1. Introduction, objectives & impacts1. Introduction, objectives & impacts
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Renaturalisation Renaturalisation of Urban Streamsof Urban Streams
Back to Nature…
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Natural conditions
BALANCEBALANCE
Freedom coping water and sediment flowFreedom coping water and sediment flow
NO BALANCENO BALANCE
or
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Natural conditions
Freedom coping water and sediment flowFreedom coping water and sediment flow
Action to correctAction to correct
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Freedom coping water and sediment flowFreedom coping water and sediment flow
IMIMBALANCE !BALANCE !
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Natural conditions
BALANCEBALANCE
Self-sustaining coping capacitySelf-sustaining coping capacity
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Point sourcePoint source PollutionPollution
SELF-PURIFICATIONSELF-PURIFICATION
Self-sustaining coping capacitySelf-sustaining coping capacity
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
BALANCEBALANCE
Self-sustaining coping capacitySelf-sustaining coping capacity
Point sourcePoint source PollutionPollution
Self purifying Self purifying (coping capacity (coping capacity potential)potential)
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Point sourcePoint source PollutionPollution
Self-sustaining coping capacitySelf-sustaining coping capacity
Self purifying Self purifying (coping capacity (coping capacity potential)potential)
WASTE WATER WASTE WATER TREATMENTTREATMENT
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Self-sustaining coping capacitySelf-sustaining coping capacity
Point sourcePoint source PollutionPollution
Self purifying Self purifying (coping capacity (coping capacity potential)potential)
Waste water Waste water treatmenttreatment
BALANCEBALANCE
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Self-sustaining coping capacitySelf-sustaining coping capacityPoint sourcePoint source PollutionPollution
Self purifying Self purifying (coping capacity (coping capacity potential)potential)
Waste water Waste water treatmenttreatment
Diffuse sourceDiffuse source PollutionPollution
SELF-PURIFICATIONSELF-PURIFICATION
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
BALANCEBALANCE
Self-sustaining coping capacitySelf-sustaining coping capacityPoint sourcePoint source PollutionPollution
Self purifying Self purifying (coping capacity (coping capacity potential)potential)
Waste water Waste water treatmenttreatment
Diffuse sourceDiffuse source PollutionPollution
Self purifying Self purifying (coping capacity (coping capacity potential)potential)
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Self-sustaining coping capacitySelf-sustaining coping capacityPoint sourcePoint source PollutionPollution
Self purifying Self purifying (coping capacity (coping capacity potential)potential)
Waste water Waste water treatmenttreatment
Diffuse sourceDiffuse source PollutionPollution
Self purifying Self purifying (coping capacity (coping capacity potential)potential)
??
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Self-sustaining coping capacitySelf-sustaining coping capacityPoint sourcePoint source PollutionPollution
Self purifying Self purifying (coping capacity (coping capacity potential)potential)
Waste water Waste water treatmenttreatment
Diffuse sourceDiffuse source PollutionPollution
Self purifying Self purifying (coping capacity (coping capacity potential)potential)
IMIMBALANCE !BALANCE !
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
IMIMBALANCE !BALANCE !
Degradation of Degradation of aquatic environmentaquatic environment
Degradation of ecologyDegradation of ecology
Self-sustaining coping capacitySelf-sustaining coping capacity
Freedom coping water and sediment flowFreedom coping water and sediment flow
Flood Flood risksrisks
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Rehabilitation objectivesRehabilitation objectives
REHABILITATIONREHABILITATION
Improvement of the river stateImprovement of the river state in:in:
Physical characteristicsPhysical characteristics
Chemical qualityChemical quality
Ecological diversityEcological diversity
Aesthetical Aesthetical appearanceappearance
??Flood riskFlood risk
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
REHABILITATIONREHABILITATION
Improvement of the river stateImprovement of the river state in:in:
Creation of habitats for bio-Creation of habitats for bio-diversitydiversity
Aesthetics Aesthetics (Amenities)(Amenities)
Social Social improvementimprovement
Maintenance Maintenance costcost
Rehabilitation objectivesRehabilitation objectives
??
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
Rehabilitation impactsRehabilitation impacts
REHABILITATIONREHABILITATION
The main benefits are:The main benefits are:
Social benefitsSocial benefits
Aesthetic benefitsAesthetic benefits
NatureNature
SafetySafety
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1. Introduction, objectives & impacts1. Introduction, objectives & impacts
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