System Components and Design Considerations

فهرست عناوین اصلی در این پاورپوینت

فهرست عناوین اصلی در این پاورپوینت

● About Saroj Sharma
● Introduction into rainwater harvesting
● Uses, advantages & limitations
● System Components and Design Considerations
● Quality Aspects of RWH

نوع زبان: انگلیسی حجم: 9.39 مگا بایت
نوع فایل: اسلاید پاورپوینت تعداد اسلایدها: 118 صفحه
سطح مطلب: نامشخص پسوند فایل: pptx
گروه موضوعی: زمان استخراج مطلب: 2019/06/07 11:05:48

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عبارات مهم استفاده شده در این مطلب

عبارات مهم استفاده شده در این مطلب

., system, water, rainwater, area, rwh, urban, supply, catchment, source, treatment, harvest,

توجه: این مطلب در تاریخ 2019/06/07 11:05:48 به صورت خودکار از فضای وب آشکار توسط موتور جستجوی پاورپوینت جمع آوری شده است و در صورت اعلام عدم رضایت تهیه کننده ی آن، طبق قوانین سایت از روی وب گاه حذف خواهد شد. این مطلب از وب سایت زیر استخراج شده است و مسئولیت انتشار آن با منبع اصلی است.

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عبارات پرتکرار و مهم در این اسلاید عبارتند از: ., system, water, rainwater, area, rwh, urban, supply, catchment, source, treatment, harvest,

مشاهده محتوای متنیِ این اسلاید ppt

مشاهده محتوای متنیِ این اسلاید ppt

rainwater harvesting course ۶ ۱ teacher saroj sharma s.sharma@unesco ۲ about saroj sharma saroj kumar sharma graduated in civil engineering with distinction in ۱۹۸۸ college university of rajasthan india completed his msc in sanitary engineering with distinction in ۱۹۹۷ ihe delft the netherlands and phd in groundwater treatment in ۲ ۱ wageningen university and ihe delft the netherlands . he is specialized in water supply engineering water quality treatment and distribution. he has ۲۲ years of professional and academic experience in planning design implementation and operation and maintenance of urban semi urban and community based rural water supply projects. he has worked with several government agencies international consultants and donors unicef who adb wb in various water supply projects in different parts of the world. his teaching and research interests are in the field of physicochemical treatment processes filtration and adsorption based processes natural treatment systems bank filtration and soil aquifer treatment water transport and distribution water loss management urban water demand management corrosion of water pipes and decentralized water supply systems for small towns and urban poor areas. http www.unesco iu staffmember roj ۲ ۳ this course is built up from ۵ parts introduction uses advantages and limitations of rwh system system components and design considerations for roof rwh system quality aspects of rwh system examples of rwh systems contents introduction into rainwater harvesting part ۱ ۴ ۵ rainwater harvesting rwh technology used for collecting and storing rainwater for human use from rooftops land surfaces or rock catchments. one of the world’s most important ancient water supply techniques practiced for more than ۴ years is beginning to enjoy a resurgence in popularity. rainwater is an important water source in many areas with significant rainfall but lacking any kind of conventional centralised supply system. introduction ۱ ۵ ۶ sigiriya sri lanka. ۷ sigiriya sri lanka. this reservoir cut into the rock was used centuries ago to hold harvested rainwater. http html technical enquiries docs rainwater harvesting.pdf ۸ cistern of the maya people called chultun capacity ۴۵ litres diameter ۵ m catchment area ۱۵ m² source http ۹ rainwater is also a good option in areas where good quality fresh surface water or groundwater is lacking. it could be used as a supplement to piped water supply e.g. for toilet flushing washing and garden spraying rwh is a decentralised environmentally sound solution which can avoid many environmental problems often caused in centralised conventional large scale water supply projects. introduction ۲ ۹ ۱ roof catchments simple roofwater collection system for households larger systems for educational institutions stadiums airports and other facilities roofwater collection systems for high rise buildings in urbanised areas ground catchments man made rock catchments natural impervious outcrops collection of storm water in urbanized catchments for recharge types of rainwater harvesting systems ۱ ۱۱ typical domestic rainwater harvesting system source http dtu rainwaterharvesting index.html ۱۲ ground catchment system source ensic ۱۹۹۱ ۱۳ ground catchment system ۱۴ rock catchment system source ensic ۱۹۹۱ uses advantages limitations part ۲ ۱۵ ۱۶ use of harvested rainwater  non potable purposes mainly in urban areas gardening flushing washing clothes cars  potable purpose after ensuring quality mainly in rural and peri urban areas ۱۷ small scale rainwater harvesting systems and uses ۱۸ in view of increasing migration to urban area and the emergence of mega cities in the next millennium it is imperative that water supply systems should be evolved to cater for such a development. in areas with relatively high rainfall spread throughout the year where other water resources are scarce rwh is an important option for example parts of sri lanka philippines indonesia nepal and uganda. installation rwh system is mandatory for the construction of buildings in some towns in india and on the virgin islands usa. many government agencies and municipalities worldwide provide grants subsidies and technical know how to promote rwh system. rwh in urban areas ۱۹ in case of roof catchment systems there is sufficient flexibility to utilize systems that will be adaptable to suit all socio economic levels of population including the urban poor. examples of typical options in urban area rainwater use in households as a supplement public institutions high rise building in high density urban areas collection of rainwater in industrial areas use of runoff in airports collection of rainfall from public open spaces for recharging rwh in urban areas ۲ ۲ rwh systems provide water at or near the point where water is needed or used. rainwater is relatively clean and the quality is usually acceptable for many purposes with little or even no treatment. system is independent and therefore suitable for scattered settlements. local materials and craftsmanship can be used in construction of rainwater system. ease in maintenance by the owner user provides a water supply buffer for use in times of emergency or breakdown of the public water supply systems advantages of rwh ۲۱  flood control by greatly reducing urban runoff  stormwater drainage by reducing the size and scale of infrastructure requirements  firefighting and disaster relief by providing independent household reservoirs  water conservation as less water is required from other sources  reduced groundwater exploitation and subsidence as less groundwater is required  financial savings – where rainwater can be used in place of water purchased from water vendors. advantages of rwh in urban areas ۲۲ the initial cost mainly of storage tank may prevent a family from installing a rwh system. the water availability is limited by the rainfall intensity and available roof area. mineral free rainwater has a flat taste which may not be liked by many. the poorer segment of the population may not have a roof suitable for rainwater harvesting. domestic rwh will always remain a supplement and not a complete replacement for city level piped supply or supply from more ‘reliable’ sources. limitations of …

کلمات کلیدی پرکاربرد در این اسلاید پاورپوینت: ., system, water, rainwater, area, rwh, urban, supply, catchment, source, treatment, harvest,

این فایل پاورپوینت شامل 118 اسلاید و به زبان انگلیسی و حجم آن 9.39 مگا بایت است. نوع قالب فایل pptx بوده که با این لینک قابل دانلود است. این مطلب برگرفته از سایت زیر است و مسئولیت انتشار آن با منبع اصلی می باشد که در تاریخ 2019/06/07 11:05:48 استخراج شده است.

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