Rainwater Harvesting Products, Residential and Commercial Applications OverviewMorris Group International
Rainwater harvesting systems are simple to install, operate, and maintain. It is convenient in the sense that it provides water at the point of consumption and operating costs are negligible. Water collected from the roof catchment is available for use in potable (per local approval) and non-potable applications.
For more information, please visit www.jrsmith.com
This work aims to design a sustainable greywater system in household Kano state, Nigeria in order to minimize the amount of fresh water consumed for portable purposes and use the greywater for non-portable applications such as toilet flushing, landscape watering, etc.
Filtration of Greywater by Natural ProcessRohan Gajbhiye
This is my Under-graduation final year project presentation based on "Filtration of Grey water by Natural Process using Canna India Plant". My goal to to recycle Grey water for various day to day purpose of our life, so that, we can use and reuse the water for day to day needs such as Gardening, Farming, Car Washing and can prevent scarcity of water which also helps us to re-energize and replace the dry land with veggies and greneery .
Hope it helps. It's not just a presentation but it's a social message to all to help themselves by taking little steps everyday to save water and save life.
Stay healthy Stay fit.
World Water Day is an annual international commemoration day held on March 22nd to highlight the importance of freshwater. The United Nations announced the first World Water Day in 1993. Many countries around the world commemorate this day to address and address all water-related issues by conserving and preserving it for future use.
Water is a one-of-a-kind, non-replaceable resource. It has many principles and benefits as the cornerstone of life, cultures, and economies. However, unlike most other useful commodities, determining its true "value" has proved exceedingly difficult.
The “Valuing Water” portion of the 2021 World Water Growth Study assesses the current state of and obstacles to water valuation in different contexts.
Design for Harvesting and Treatment of Rainwater in Naval, Biliranijtsrd
The study takes advantage of rainwater, a naturally processed water. Developing a design for an affordable, less chemically oriented method that would help many people gain access to the water they need easily. The design used materials that were cheap and can be easily accessed on the local market. The process starts from a stage where large particles of contaminants were removed through straining. The next was iltering the water through a sequence of sponge, charcoal, coarse and fine sand. And lastly was chlorination, which treated the rainwater from the bacteria's which were previously not removed from the filter. The study came up with the design that were easily availed on the local markets of Naval, Biliran. The components were easy to install and were effective in harvesting rainwater. The treatment results were not what the researchers envisioned it to be, but still they were able to produce safe drinking water. Sure enough, it could be an alternative for other uses aside from drinking. The design was incomplete, especially on the part of the treatment device thus, further studies are recommended for its improvement. Nevertheless, the study proved that simple customized rainwater harvester and treatment device is achievable with the materials that can easily be found on the local market. Ramon L. Pitao, Jr. | Dahlia D. Fernandez | Ric Cyrell Rosialda ""Design for Harvesting and Treatment of Rainwater in Naval, Biliran"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23897.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23897/design-for-harvesting-and-treatment-of-rainwater-in-naval-biliran/ramon-l-pitao-jr
Rainwater Harvesting Products, Residential and Commercial Applications OverviewMorris Group International
Rainwater harvesting systems are simple to install, operate, and maintain. It is convenient in the sense that it provides water at the point of consumption and operating costs are negligible. Water collected from the roof catchment is available for use in potable (per local approval) and non-potable applications.
For more information, please visit www.jrsmith.com
This work aims to design a sustainable greywater system in household Kano state, Nigeria in order to minimize the amount of fresh water consumed for portable purposes and use the greywater for non-portable applications such as toilet flushing, landscape watering, etc.
Filtration of Greywater by Natural ProcessRohan Gajbhiye
This is my Under-graduation final year project presentation based on "Filtration of Grey water by Natural Process using Canna India Plant". My goal to to recycle Grey water for various day to day purpose of our life, so that, we can use and reuse the water for day to day needs such as Gardening, Farming, Car Washing and can prevent scarcity of water which also helps us to re-energize and replace the dry land with veggies and greneery .
Hope it helps. It's not just a presentation but it's a social message to all to help themselves by taking little steps everyday to save water and save life.
Stay healthy Stay fit.
World Water Day is an annual international commemoration day held on March 22nd to highlight the importance of freshwater. The United Nations announced the first World Water Day in 1993. Many countries around the world commemorate this day to address and address all water-related issues by conserving and preserving it for future use.
Water is a one-of-a-kind, non-replaceable resource. It has many principles and benefits as the cornerstone of life, cultures, and economies. However, unlike most other useful commodities, determining its true "value" has proved exceedingly difficult.
The “Valuing Water” portion of the 2021 World Water Growth Study assesses the current state of and obstacles to water valuation in different contexts.
Design for Harvesting and Treatment of Rainwater in Naval, Biliranijtsrd
The study takes advantage of rainwater, a naturally processed water. Developing a design for an affordable, less chemically oriented method that would help many people gain access to the water they need easily. The design used materials that were cheap and can be easily accessed on the local market. The process starts from a stage where large particles of contaminants were removed through straining. The next was iltering the water through a sequence of sponge, charcoal, coarse and fine sand. And lastly was chlorination, which treated the rainwater from the bacteria's which were previously not removed from the filter. The study came up with the design that were easily availed on the local markets of Naval, Biliran. The components were easy to install and were effective in harvesting rainwater. The treatment results were not what the researchers envisioned it to be, but still they were able to produce safe drinking water. Sure enough, it could be an alternative for other uses aside from drinking. The design was incomplete, especially on the part of the treatment device thus, further studies are recommended for its improvement. Nevertheless, the study proved that simple customized rainwater harvester and treatment device is achievable with the materials that can easily be found on the local market. Ramon L. Pitao, Jr. | Dahlia D. Fernandez | Ric Cyrell Rosialda ""Design for Harvesting and Treatment of Rainwater in Naval, Biliran"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23897.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/23897/design-for-harvesting-and-treatment-of-rainwater-in-naval-biliran/ramon-l-pitao-jr
Grey water treatment is removal of unwanted suspended material from the greywater collected and disinfecting the same to make it useful for toilet flushing or irrigation or discharging to sewer lines according to the local laws applicable.
Grey water systems presentation 6 18-2015 finalTony Green
The recent drought has prompted Governor Brown to enact
mandatory water restrictions for the first time in the history of the state of California. With no end to the drought in sight and the level of the state’s reservoirs being at their lowest levels in decades everyone will need to take steps to conserve this precious resource. Grey Water systems have recently been proposed as a method where home owners can help conserve water by using reclaimed
water produced by laundry, sinks and bathtubs in non-potable applications such as irrigation or flushing toilets.
Borewells metering and tariffs in group housing communitiesbiometrust
This presentation gives an overview of the role of borewell metering and the importance of communities to introduce separate water tariffs in the absence of utility supplies. This helps manage the water
Smart Water Solution Using Internet of Things (IoT)Vinay Gor
Smart Water Solutions using Internet of Things(IoT)
Project Overview
•The purpose of this project is to have a smarter way of water management in order to conserve water resources and energy.
•Water utilization requirement can be met by conserving and storing the Rain Water. Rainwater harvesting is a process or technique of collecting, storing and using rainwater for domestic and various other purposes. Harvesting rainwater allows us to better utilize an energy resource and reduces water bills.
•Proper maintenance of water outlets, their proper scheduling of repairing is must in order to reduce the water losses to leakages and breakages.
•Optimized the energy consumption requirement for pumping water. This can be achieved by ensuring a right combination of pumping configuration.
•Predictive analytics techniques can be used for getting the right amount of water at the right destination for the right duration.
•This project was implemented in Java with the help and Ecosystem model and object-oriented database model : Db4o.
•This project answers various Business Intelligence questions with the use of Graphs, Pie Charts and PDF reports using JFreeChart API.
90% RECYCLING OF LAUNDRY WASTEWATER THROUGH MEMBRANESMelvin Eldin
It is the process by which the wastewater from the laundry washers is carefully treated until satisfactory levels of purification for reusing either in the laundry process or other processes as a supplement to the fresh water line supply. The applied technology is Ceramic + Specialised RO membranes which recycles 90% of the Wastewater back to the Laundry for reuse. The ROI varies from case to case ranging from 1 to 2 years.
Experimental study on grey water recycling using biosand filters for non pota...Dr Priy Brat Dwivedi
In this study, biosand filters were fabricated and used for treatment of bathroom and kitchen wastewater. Final aim was to treat water and make it suitable for irrigation and other non potable usages.
Grey water treatment is removal of unwanted suspended material from the greywater collected and disinfecting the same to make it useful for toilet flushing or irrigation or discharging to sewer lines according to the local laws applicable.
Grey water systems presentation 6 18-2015 finalTony Green
The recent drought has prompted Governor Brown to enact
mandatory water restrictions for the first time in the history of the state of California. With no end to the drought in sight and the level of the state’s reservoirs being at their lowest levels in decades everyone will need to take steps to conserve this precious resource. Grey Water systems have recently been proposed as a method where home owners can help conserve water by using reclaimed
water produced by laundry, sinks and bathtubs in non-potable applications such as irrigation or flushing toilets.
Borewells metering and tariffs in group housing communitiesbiometrust
This presentation gives an overview of the role of borewell metering and the importance of communities to introduce separate water tariffs in the absence of utility supplies. This helps manage the water
Smart Water Solution Using Internet of Things (IoT)Vinay Gor
Smart Water Solutions using Internet of Things(IoT)
Project Overview
•The purpose of this project is to have a smarter way of water management in order to conserve water resources and energy.
•Water utilization requirement can be met by conserving and storing the Rain Water. Rainwater harvesting is a process or technique of collecting, storing and using rainwater for domestic and various other purposes. Harvesting rainwater allows us to better utilize an energy resource and reduces water bills.
•Proper maintenance of water outlets, their proper scheduling of repairing is must in order to reduce the water losses to leakages and breakages.
•Optimized the energy consumption requirement for pumping water. This can be achieved by ensuring a right combination of pumping configuration.
•Predictive analytics techniques can be used for getting the right amount of water at the right destination for the right duration.
•This project was implemented in Java with the help and Ecosystem model and object-oriented database model : Db4o.
•This project answers various Business Intelligence questions with the use of Graphs, Pie Charts and PDF reports using JFreeChart API.
90% RECYCLING OF LAUNDRY WASTEWATER THROUGH MEMBRANESMelvin Eldin
It is the process by which the wastewater from the laundry washers is carefully treated until satisfactory levels of purification for reusing either in the laundry process or other processes as a supplement to the fresh water line supply. The applied technology is Ceramic + Specialised RO membranes which recycles 90% of the Wastewater back to the Laundry for reuse. The ROI varies from case to case ranging from 1 to 2 years.
Experimental study on grey water recycling using biosand filters for non pota...Dr Priy Brat Dwivedi
In this study, biosand filters were fabricated and used for treatment of bathroom and kitchen wastewater. Final aim was to treat water and make it suitable for irrigation and other non potable usages.
Well this is my first presentation in the slide share. In this presentation i have mentioned about the concept of water quality and guidelines for it in with the perspective to human health and its management in Nepal.
Suggestion and feedbacks are really welcome.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Welocme to ViralQR, your best QR code generator.ViralQR
Welcome to ViralQR, your best QR code generator available on the market!
At ViralQR, we design static and dynamic QR codes. Our mission is to make business operations easier and customer engagement more powerful through the use of QR technology. Be it a small-scale business or a huge enterprise, our easy-to-use platform provides multiple choices that can be tailored according to your company's branding and marketing strategies.
Our Vision
We are here to make the process of creating QR codes easy and smooth, thus enhancing customer interaction and making business more fluid. We very strongly believe in the ability of QR codes to change the world for businesses in their interaction with customers and are set on making that technology accessible and usable far and wide.
Our Achievements
Ever since its inception, we have successfully served many clients by offering QR codes in their marketing, service delivery, and collection of feedback across various industries. Our platform has been recognized for its ease of use and amazing features, which helped a business to make QR codes.
Our Services
At ViralQR, here is a comprehensive suite of services that caters to your very needs:
Static QR Codes: Create free static QR codes. These QR codes are able to store significant information such as URLs, vCards, plain text, emails and SMS, Wi-Fi credentials, and Bitcoin addresses.
Dynamic QR codes: These also have all the advanced features but are subscription-based. They can directly link to PDF files, images, micro-landing pages, social accounts, review forms, business pages, and applications. In addition, they can be branded with CTAs, frames, patterns, colors, and logos to enhance your branding.
Pricing and Packages
Additionally, there is a 14-day free offer to ViralQR, which is an exceptional opportunity for new users to take a feel of this platform. One can easily subscribe from there and experience the full dynamic of using QR codes. The subscription plans are not only meant for business; they are priced very flexibly so that literally every business could afford to benefit from our service.
Why choose us?
ViralQR will provide services for marketing, advertising, catering, retail, and the like. The QR codes can be posted on fliers, packaging, merchandise, and banners, as well as to substitute for cash and cards in a restaurant or coffee shop. With QR codes integrated into your business, improve customer engagement and streamline operations.
Comprehensive Analytics
Subscribers of ViralQR receive detailed analytics and tracking tools in light of having a view of the core values of QR code performance. Our analytics dashboard shows aggregate views and unique views, as well as detailed information about each impression, including time, device, browser, and estimated location by city and country.
So, thank you for choosing ViralQR; we have an offer of nothing but the best in terms of QR code services to meet business diversity!
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
FIDO Alliance Osaka Seminar: Passkeys and the Road Ahead.pdf
Sri Lanka; Quality of Collected Rainwater from Sri Lanka
1. Paper Submitted for 26th WEDC Conference in Dhaka, Bangladesh, 2001
Quality of Collected Rainwater from Sri Lanka
Tanuja Ariyananda, Lanka Rain Water Harvesting Forum
No.247, Wije Kumaranatunge Mawatha, Kirulapone, Colombo 5, Sri Lanka
E mail: tanuja@sri.lanka.net
Introduction
Rainwater harvesting has gained popularity in rural areas of Sri Lanka during the last few
years. Number of water supply projects some with foreign funding has included rainwater
harvesting as a technical option in their planning. The technology ha been disseminated
by Lanka Rain Water Harvesting Forum and has been successfully taken on by the
government sector as well as the non-government sector throughout the country. The
greater attraction of the rainwater harvesting system is the low cost, simple design and
construction technology, independence of central system, accessible and easily
maintained at household. However, for drinking and cooking people still prefer to use
known groundwater to unknown rainwater. Reluctance to drink rainwater collected from
the rooftop thought to be a perception of water quality. Quality of rainwater collected
depends on when it is collected (after the first rain), how it is stored as well as method of
use.
Rainwater users
Since 1995 Community Water Supply and Sanitation project implement by Ministry of
National Housing and Urban Development with World Bank assistance build more than
6000 rain water harvesting systems in Badulla and Matara district (Ariyananda. 1999).
Since then the technology developed under this project has been introduced to other
districts (dry zone) by various other government organisations as well as NGO’s. Today
estimated 6350 systems are in operation through out the country.
While the concept and technology has become popular there s still reluctance for the
people to use rainwater as a drinking source. Studies has reveled (Ariyabandu 1999) that
only 10% of these householder use the collected rainwater for drinking purposes.
However other householders use it for every other purposes including cooking.
Peoples perception of Rainwater
Taste plays a major role in drinking water. As rainwater do not contain any minerals and
does not carry any taste it is not well accepted widely in rural Sri Lanka as means of
drinking water. However, in some part of the country where the ground water is
mineralized or saline rainwater is used for drinking. These households collect water
directly from the sky or use collected rainwater for drinking just after the rain. This is
because debris and organic matter from badly managed roof get collected in the tank and
2. Paper Submitted for 26th WEDC Conference in Dhaka, Bangladesh, 2001
creates a bad smell in the collected rain water due to anaerobic action or open tank breed
mosquitoes after few days making the water unacceptable for drinking.
Consumption of rainwater is related to perception of quality. Most of the rain water tanks
are generally not tested for water quality, therefore householders has no knowledge of
true water quality only perception of water quality. General quality of rain water is
measured at household level by
1. presence of leaves and other material
2. presence of mosquito larvae and other insects, rodents and frogs.
3. color
4. taste
Absolute quality of Rain water
Studies reveled rainwater collected and stored with adequate care meets the
microbiological standard set by the WHO for drinking water ( Heijnen, & Mansur, 1998).
A survey conducted in five rain water collection locations reveal that, in general quality
of rain water collected depends on the storage and management of the system.
Table 1 shows results of the survey conducted. Results shows that rain water collected
meet the WHO standard for chemical quality except in few new tanks (Siyabaladuwa and
Puttlam) the pH is little high due to cement dissolving. Conductivity, Turbidity and
Hardness in all locations meet the required WHO standards.
Table 1: Survey of quality of collected water from 5 locations ins Sri Lanka
LOCATION pH Conductivity Turbidity Hardness F.Coliform/ 100ml
µ C/cm NTU CaCO3 mg/l
MATARA 8.2 (6-9.8) 60 (10-160) 5 0-20 28 (0-2000)
BANDARAWELLA 7.8 (7.1-11.5) 70 (30-170) 5 0-20 11 (0-400)
WELIMADA 8.4 (10.7-7) 100 (60-160) 5 0-20 75 (1-600)
SIYABALADUWA 10.7 (6.5-11.5) 220 (110-770) 5 0-20 0 (0-10)
PUTTLAM 9.3-9.8 10-360 5 20 5
WHO Standard 6.5-8.5 500 <5 250 0
However bacteriological quality (Fecal Coliform) of rain water does not meet the WHO
standard except at Siyabaladuwa where all the tanks are fitted with filters. In other
places better bacterial quality water was recorded from systems fitted with filters than
without filters (Figure 2).
Survey also reveled that at the start of the rainy season (November) Figure 2, F.Coliform
count in the tank is high due to roof washout. This contradicts the popular concept that
rain water collected during the beginning of the rainy season is better quality than the
stored water. However, bacterial quality in both groups improved later during the rainy
season due to roof being washed out.
3. Paper Submitted for 26th WEDC Conference in Dhaka, Bangladesh, 2001
Fig:2 Coliform per 100ml of rainwater recorded over 5 months from
Badulla district
FC/100ml/Monthly Rain fall
300
200
mm
100
0
Sept Oct Nov Dec Jan
Group B with Filters Group A No filters Rainfall
A comparison of Rainwater with other conventional water sources
Bacterial quality of rainwater collected in tanks has always been better than the
conventional shallow wells in all districts sampled. In some dry zone district (Puttlam and
Tangalle) hardness and conductivity in the shallow wells is higher than the recommended
WHO standard. In these district people prefer to drink rainwater than the well water. In
the wet zone (Bandarawella and Welimada) often in the conventional water sources water
is acidic. This could be due to high agricultural activities and use of fertilizers and other
chemicals in these areas.
Conclusion
Good quality rainwater can be collected and stored if the rainwater harvesting system is
managed and operated efficiently. That is, if the roof is kept clean, first flush device and
filters are used and the tank is kept closed to prevent sunlight and mosquitoes breeding.
People perception of quality of water rainwater need to change through education and
awareness raising. User education on hygiene and good rain water system operation is
also needed. A simple, low cost water quality testing systems should be designed for the
householders to monitor their own water quality.
Reference
Ariyabandu R.de S (1999) Development of Rainwater Harvesting for Domestic Water
Use in Rural Sri Lanka. Asia-Pacific Journal of Rural Development, Vol. 9, July, Number
1.
4. Paper Submitted for 26th WEDC Conference in Dhaka, Bangladesh, 2001
Ariyananda T.N. (1999) Rainwater Harvesting for Domestic Use In Sri Lanka. 25th
WEDC Conference, Addis Ababa, Ethiopia. p 369-372.
Heijnen, H and Mansur U. (1998) Rainwater Harvesting in the Community Water Supply
and Sanitation Project. Proceeding of the Symposium on Rain Water Harvesting for
Water Security. Feb. 1998, OUR Engineering technology Open University, Colombo, Sri
Lanka.Vol.2