Rainwater  harvesting
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Rainwater harvesting

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very use full water resorurce management for civil engineer

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

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    Rainwater  harvesting Rainwater harvesting Presentation Transcript

    • RAINWATERRAINWATER HARVESTINGHARVESTING ANDAND ARTIFICIALARTIFICIAL RECHARGE TORECHARGE TO GROUND WATERGROUND WATER PRESENTED BY CHINTHU P WILSON S7,CIVIL ENGG Roll Number:20 GUIDED BY LECT. MANJU.P.M DEPARTMENT OF CIVIL ENGINEERING
    • WHAT IS RWH?WHAT IS RWH? RWH refers to collection andRWH refers to collection and storage of rainwater and also otherstorage of rainwater and also other activity such as harvesting surfaceactivity such as harvesting surface water extracting ground water ,water extracting ground water , prevention of loss throughprevention of loss through evaporation and seepageevaporation and seepage
    • PURPOSES OFPURPOSES OF RWHRWH Stored for ready use in containersStored for ready use in containers ground or below groundground or below ground Charged into the ground for withdrawalCharged into the ground for withdrawal laterlater
    • BENEFITS OF RWHBENEFITS OF RWH Rainwater harvesting prevents flooding ofRainwater harvesting prevents flooding of lowlying areaslowlying areas Rain water harvesting replenishes the groundRain water harvesting replenishes the ground water table and enables our dug wells and borewater 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 byIt helps in the availability of clean water by reducing the salinity and the presence of ironreducing the salinity and the presence of iron saltssalts
    • RHHRHH TECHNIQUESTECHNIQUES STORAGE OF RAINWATER ON SURFACESTORAGE OF RAINWATER ON SURFACE FOR FUTURE USEFOR FUTURE USE RECHARGE TO GROUND WATERRECHARGE TO GROUND WATER
    • STORAGE OF RAINWATERSTORAGE OF RAINWATER ON SURFACE FOR FUTUREON SURFACE FOR FUTURE USEUSE CHECK DAMSCHECK DAMS RAINWATER HARVESTING FROM ROOFTOPRAINWATER HARVESTING FROM ROOFTOP CATCHMENTSCATCHMENTS SUBSURFACE DAMSSUBSURFACE DAMS FARM PONDSFARM PONDS
    • SUBSURFACE DAMSSUBSURFACE DAMS
    • CHECK DAMSCHECK DAMS
    • RAINWATERRAINWATER HARVESTING FROMHARVESTING FROM ROOFTOP CATCHMENTSROOFTOP CATCHMENTS
    • FARM PONDSFARM PONDS
    • RECHARGE TO GROUNDRECHARGE TO GROUND WATERWATER RECHARGE BORE PITRECHARGE BORE PIT RECHARGE WELLRECHARGE WELL RECHARGE WELL CUM BORE PITRECHARGE WELL CUM BORE PIT SPREADING BASINSSPREADING BASINS DITCHESDITCHES HAND PUMPSHAND PUMPS
    • RECHARGE BORE PITRECHARGE BORE PIT
    • RECHARGE WELLRECHARGE WELL
    • RECHARGE WELL CUM BORERECHARGE WELL CUM BORE PITPIT
    • DITCHESDITCHES
    • HAND PUMPSHAND PUMPS
    • SPREADING BASINSSPREADING BASINS
    • ADVANTAGES OF RWHADVANTAGES OF RWH PROVIDES 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 BERAINWATER HARVESTING SYSTEMS ARE SIMPLE WHICH CAN BE ADOPTED BY INDIVIDUALSADOPTED BY INDIVIDUALS PROVIDE HIGH QUALITY WATER THROUGH DILUTION WHENPROVIDE HIGH QUALITY WATER THROUGH DILUTION WHEN RECHARGE TO GROUND WATERRECHARGE TO GROUND WATER IT CAN IMPROVE THE ENGINEERING BUILDING FOUNATION WHENIT CAN IMPROVE THE ENGINEERING BUILDING FOUNATION WHEN CISTERNS ARE BUILD ASCISTERNS ARE BUILD AS PART OF THE SUBSTRUCTURE OF THE BUILDINGS, AS IN THE CASEPART OF THE SUBSTRUCTURE OF THE BUILDINGS, AS IN THE CASE OF MANDATORY CISTERNS
    • 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 OFLEKAGE FROM CISTERNS CAN CAUSE THE DETERIORATION OF LOAD BEARNG SLOPESLOAD BEARNG SLOPES THE SUCCESS OF RAINFALL HARVESTING DEPENDS UPON THETHE SUCCESS OF RAINFALL HARVESTING DEPENDS UPON THE FREQUENCY AND AMOUNT OF RAINFALL THEREFORE IT IS NOT AFREQUENCY AND AMOUNT OF RAINFALL THEREFORE IT IS NOT A DEPENDABLE WATER SOURCES IN TIMES OF DRY WEATHER ORDEPENDABLE WATER SOURCES IN TIMES OF DRY WEATHER OR PRONGED DRAUGHTPRONGED DRAUGHT
    • CONCLUSIONCONCLUSION • IN DENSELY POPULATED COUNTRIES LIKE INDIA, THE DEMAND FOR WATER GOES ONIN DENSELY POPULATED COUNTRIES LIKE INDIA, THE DEMAND FOR WATER GOES ON INCREASING WITH INCREASE IN POPULATION. THIS PROVES TO BE MAJOUR PROBLEMINCREASING WITH INCREASE IN POPULATION. THIS PROVES TO BE MAJOUR PROBLEM IN OUR EXPLORING NEW SOURCE OF WATER , RAINWATER NATURALLY AND FREELYIN OUR EXPLORING NEW SOURCE OF WATER , RAINWATER NATURALLY AND FREELY AVAILABLE SOURCE CAN BE PROPERLY UTILIZED BY MEANS OF WATER HARVESTINGAVAILABLE SOURCE CAN BE PROPERLY UTILIZED BY MEANS OF WATER HARVESTING AND RECHARGINGAND RECHARGING • RAINWATER HARVESTING IS A VIABLE TECHNOLOGY FOR ENCHANCING PRODUCTIONRAINWATER HARVESTING IS A VIABLE TECHNOLOGY FOR ENCHANCING PRODUCTION FROM THE RAINFED LANDSFROM THE RAINFED LANDS • GROUNDWATER RECHARGING BY ARTIFICIAL METHODS SHOULD BE TAKEN UPGROUNDWATER RECHARGING BY ARTIFICIAL METHODS SHOULD BE TAKEN UP PRIORITY BASIS, FIRST IN DISTRICT WHERE RAINFALL IS LESS AND RARE FARMERSPRIORITY BASIS, FIRST IN DISTRICT WHERE RAINFALL IS LESS AND RARE FARMERS HAVE TO DEPEND ON RAINWATERHAVE TO DEPEND ON RAINWATER • A STRATEGY TO IMPLEMENT THE GROUND WATER RECHARGE. IN A MAJOUR WAYA STRATEGY TO IMPLEMENT THE GROUND WATER RECHARGE. IN A MAJOUR WAY NEEDS TO LAUNCHED WITH CONCERTED EFFORTS BY VARIOUS GOVERNMENTAL ANDNEEDS TO LAUNCHED WITH CONCERTED EFFORTS BY VARIOUS GOVERNMENTAL AND NONGOVERNMENTAL AGENCIES AND THE PUBLIC AT LARGE, TO INCREASE THENONGOVERNMENTAL AGENCIES AND THE PUBLIC AT LARGE, TO INCREASE THE WATER TABLE AND MAKE THE GROUND WATER RESOURCES, A RELIABLE ANDWATER TABLE AND MAKE THE GROUND WATER RESOURCES, A RELIABLE AND SUSTAINABLE SOURCE FOR SUPPLEMENTING WATER SUPPLY NEEDS.SUSTAINABLE SOURCE FOR SUPPLEMENTING WATER SUPPLY NEEDS.
    • REFERENCESREFERENCES • Chu,S.C and Liaw,C.H 1995-1997 study of industrial rainwater catchment systems(I)-(III). FinalChu,S.C and Liaw,C.H 1995-1997 study of industrial rainwater catchment systems(I)-(III). Final Report of Indus. Tech.Res.InstReport of Indus. Tech.Res.Inst • Liaw,S.C and Tsai,Y.L.2002. Application of rainwater retardation and retention for a healthy waterLiaw,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 managementenvirnoment 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 catchmentLiaw,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 symposium:131-144,systems in taiwan,proc. East Asia 2000 Rainwater utilization symposium:131-144, oct.1,2000,Taipei,Taiwanoct.1,2000,Taipei,Taiwan
    • THANK YOUTHANK YOU