rainwater harvesting

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RAINWATER RAINWATER HARVESTING HARVESTING AND AND ARTIFICIAL RECHARGE ARTIFICIAL RECHARGE TO GROUND WATER TO GROUND WATER PRESENTED BY CHINTHU P WILSON S7,CIVIL ENGG Roll Number:20 GUIDED BY LECT. MANJU.P.M DEPARTMENT OF CIVIL ENGINEERING

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very use full water resorurce management for civil engineer rain water harvesting method

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Page 1: Rainwater  harvesting

RAINWATER RAINWATER HARVESTING HARVESTING

AND AND ARTIFICIAL ARTIFICIAL

RECHARGE TO RECHARGE TO GROUND WATERGROUND WATER

PRESENTED BY

CHINTHU P WILSONS7,CIVIL ENGGRoll Number:20

GUIDED BY LECT. MANJU.P.MDEPARTMENT OF CIVIL ENGINEERING

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WHAT IS WHAT IS RWH?RWH?

RWH refers to collection and RWH refers to collection and storage of rainwater and also storage of rainwater and also other activity such as other activity such as harvesting surface water harvesting surface water extracting ground water , extracting ground water , prevention of loss through prevention of loss through evaporation and seepageevaporation and seepage

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PURPOSES OF PURPOSES OF RWHRWHStored for ready use in containersStored for ready use in containers ground or below ground ground or below ground

Charged into the ground for Charged into the ground for withdrawal laterwithdrawal later

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BENEFITS OF RWHBENEFITS OF RWHRainwater harvesting prevents flooding of lowlying Rainwater harvesting prevents flooding of lowlying areasareas

Rain water harvesting replenishes the ground Rain water harvesting replenishes the ground water table and enables our dug wells and bore water table and enables our dug wells and bore wells to yield in a sustained mannerwells to yield in a sustained manner

It helps in the availability of clean water by It helps in the availability of clean water by reducing the salinity and the presence of iron saltsreducing the salinity and the presence of iron salts

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RHH RHH TECHNIQUESTECHNIQUES

STORAGE OF RAINWATER ON SURFACE STORAGE OF RAINWATER ON SURFACE FOR FUTURE USEFOR FUTURE USE

RECHARGE TO GROUND WATERRECHARGE TO GROUND WATER

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STORAGE OF RAINWATER STORAGE OF RAINWATER ON SURFACE FOR FUTURE ON SURFACE FOR FUTURE USEUSE

CHECK DAMSCHECK DAMS

RAINWATER HARVESTING FROM ROOFTOP CATCHMENTSRAINWATER HARVESTING FROM ROOFTOP CATCHMENTS

SUBSURFACE DAMSSUBSURFACE DAMS

FARM PONDSFARM PONDS

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SUBSURFACE DAMSSUBSURFACE DAMS

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CHECK DAMSCHECK DAMS

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RAINWATER RAINWATER HARVESTING FROM HARVESTING FROM ROOFTOP CATCHMENTSROOFTOP CATCHMENTS

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FARM PONDSFARM PONDS

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RECHARGE TO GROUND RECHARGE TO GROUND WATER WATER

RECHARGE BORE PITRECHARGE BORE PIT

RECHARGE WELLRECHARGE WELL

RECHARGE WELL CUM BORE PITRECHARGE WELL CUM BORE PIT

SPREADING BASINSSPREADING BASINS

DITCHESDITCHES

HAND PUMPSHAND PUMPS

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RECHARGE BORE PITRECHARGE BORE PIT

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RECHARGE WELLRECHARGE WELL

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RECHARGE WELL CUM BORE RECHARGE WELL CUM BORE PITPIT

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DITCHESDITCHES

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HAND PUMPSHAND PUMPS

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SPREADING BASINSSPREADING BASINS

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ADVANTAGES OF RWHADVANTAGES OF RWHPROVIDES SELF- SUFFICIENCY TO YOUR WATER SUPPLYPROVIDES SELF- SUFFICIENCY TO YOUR WATER SUPPLY

REDUCE THE COST FOR PUMPING GROUND WATERREDUCE THE COST FOR PUMPING GROUND WATER

REDUCE SELF EROSION IN URBAN AREASREDUCE SELF EROSION IN URBAN AREAS

RAINWATER HARVESTING SYSTEMS ARE SIMPLE WHICH CAN BE ADOPTED BY RAINWATER HARVESTING SYSTEMS ARE SIMPLE WHICH CAN BE ADOPTED BY INDIVIDUALSINDIVIDUALS

PROVIDE HIGH QUALITY WATER THROUGH DILUTION WHEN RECHARGE TO PROVIDE HIGH QUALITY WATER THROUGH DILUTION WHEN RECHARGE TO GROUND WATERGROUND WATER

IT CAN IMPROVE THE ENGINEERING BUILDING FOUNATION WHEN CISTERNS ARE IT CAN IMPROVE THE ENGINEERING BUILDING FOUNATION WHEN CISTERNS ARE BUILD AS BUILD AS PART OF THE SUBSTRUCTURE OF THE BUILDINGS, AS IN THE CASE OF PART OF THE SUBSTRUCTURE OF THE BUILDINGS, AS IN THE CASE OF MANDATORY CISTERNSMANDATORY CISTERNS

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DISADVANTAGES OF RWHDISADVANTAGES OF RWH

TAKE CONSIDERABLE AMOUNT OF TIME TO PAY FOR ITSELFTAKE CONSIDERABLE AMOUNT OF TIME TO PAY FOR ITSELF

LEKAGE FROM CISTERNS CAN CAUSE THE DETERIORATION OF LEKAGE FROM CISTERNS CAN CAUSE THE DETERIORATION OF LOAD BEARNG SLOPESLOAD BEARNG SLOPES

THE SUCCESS OF RAINFALL HARVESTING DEPENDS UPON THE THE SUCCESS OF RAINFALL HARVESTING DEPENDS UPON THE FREQUENCY AND AMOUNT OF RAINFALL THEREFORE IT IS NOT A FREQUENCY AND AMOUNT OF RAINFALL THEREFORE IT IS NOT A DEPENDABLE WATER SOURCES IN TIMES OF DRY WEATHER OR DEPENDABLE WATER SOURCES IN TIMES OF DRY WEATHER OR PRONGED DRAUGHTPRONGED DRAUGHT

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CONCLUSIONCONCLUSION

• IN DENSELY POPULATED COUNTRIES LIKE INDIA, THE DEMAND FOR WATER GOES ON INCREASING WITH INCREASE IN POPULATION. THIS PROVES TO BE MAJOUR IN DENSELY POPULATED COUNTRIES LIKE INDIA, THE DEMAND FOR WATER GOES ON INCREASING WITH INCREASE IN POPULATION. THIS PROVES TO BE MAJOUR PROBLEM IN OUR EXPLORING NEW SOURCE OF WATER , RAINWATER NATURALLY AND FREELY AVAILABLE SOURCE CAN BE PROPERLY UTILIZED BY MEANS OF WATER PROBLEM IN OUR EXPLORING NEW SOURCE OF WATER , RAINWATER NATURALLY AND FREELY AVAILABLE SOURCE CAN BE PROPERLY UTILIZED BY MEANS OF WATER HARVESTING AND RECHARGINGHARVESTING AND RECHARGING

• RAINWATER HARVESTING IS A VIABLE TECHNOLOGY FOR ENCHANCING PRODUCTION FROM THE RAINFED LANDSRAINWATER HARVESTING IS A VIABLE TECHNOLOGY FOR ENCHANCING PRODUCTION FROM THE RAINFED LANDS

• GROUNDWATER RECHARGING BY ARTIFICIAL METHODS SHOULD BE TAKEN UP PRIORITY BASIS, FIRST IN DISTRICT WHERE RAINFALL IS LESS AND RARE FARMERS HAVE GROUNDWATER RECHARGING BY ARTIFICIAL METHODS SHOULD BE TAKEN UP PRIORITY BASIS, FIRST IN DISTRICT WHERE RAINFALL IS LESS AND RARE FARMERS HAVE TO DEPEND ON RAINWATERTO DEPEND ON RAINWATER

• A STRATEGY TO IMPLEMENT THE GROUND WATER RECHARGE. IN A MAJOUR WAY NEEDS TO LAUNCHED WITH CONCERTED EFFORTS BY VARIOUS GOVERNMENTAL AND A STRATEGY TO IMPLEMENT THE GROUND WATER RECHARGE. IN A MAJOUR WAY NEEDS TO LAUNCHED WITH CONCERTED EFFORTS BY VARIOUS GOVERNMENTAL AND NONGOVERNMENTAL AGENCIES AND THE PUBLIC AT LARGE, TO INCREASE THE WATER TABLE AND MAKE THE GROUND WATER RESOURCES, A RELIABLE AND NONGOVERNMENTAL AGENCIES AND THE PUBLIC AT LARGE, TO INCREASE THE WATER TABLE AND MAKE THE GROUND WATER RESOURCES, A RELIABLE AND SUSTAINABLE SOURCE FOR SUPPLEMENTING WATER SUPPLY NEEDS.SUSTAINABLE SOURCE FOR SUPPLEMENTING WATER SUPPLY NEEDS.

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REFERENCESREFERENCES

• Chu,S.C and Liaw,C.H 1995-1997 study of industrial rainwater catchment systems(I)-Chu,S.C and Liaw,C.H 1995-1997 study of industrial rainwater catchment systems(I)-(III). Final Report of Indus. Tech.Res.Inst(III). Final Report of Indus. Tech.Res.Inst

• Liaw,S.C and Tsai,Y.L.2002. Application of rainwater retardation and retention for a Liaw,S.C and Tsai,Y.L.2002. Application of rainwater retardation and retention for a healthy water envirnoment in urban areas.Journal of water resources managementhealthy water envirnoment in urban areas.Journal of water resources management

• Liaw,C.H., Chen,H.K, Chang, K.c. and Tsai, Y.l. 2000. Feasibility analysis of rainwater Liaw,C.H., Chen,H.K, Chang, K.c. and Tsai, Y.l. 2000. Feasibility analysis of rainwater catchment systems in taiwan,proc. East Asia 2000 Rainwater utilization catchment systems in taiwan,proc. East Asia 2000 Rainwater utilization symposium:131-144, oct.1,2000,Taipei,Taiwansymposium:131-144, oct.1,2000,Taipei,Taiwan

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THANK YOUTHANK YOU