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Rainwater Quality in Water Cellars and Pollution-prevention Measures

Water is the substance that cannot belacked or be replaced in human life and production. In China, the loess plateau of the Northwest, the arid areas of the north, coastal islands and severely-leaking karst areas are short of fresh water resources. Roofings, courtyards, fields and roads are often used to collect rainwater. Many rainwater-collection projects, e.g. water cellars, cisterns and waters tanks, have been constructed to supply human beings and domestic animals with drinking water, house-using water and supplementary irrigation water during dry seasons or at intervals of rainfall.

 

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Rainwater Utilization at Lighthouses in Taiwan

Rainwater utilization has gradually been forgotten due to the widespread convenience of municipal water supply. The use of courtyard rainwater catchment systems has been implemented in many countries for a long period of time. These include rainwater cisterns in Roman Empire (about 4,000 years ago), underground water cellars in rural China, and farm ponds in Taiwan. Although rainfall is not evenly distributed in time and space in Taiwan, rainwater remains the best alternate water source.

 

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Residential Subdivision; Close- To- Source Stormwater Management Application

A South Auckland residential subdivision, for a private developer, has adopted a close- to -source approach to the stormwater management. This paper will describe the background to the project, which includes a summary of the catchment characteristics and the previously proposed and consented catchment management plan (CMP). It was necessary to develop options that were an alternative to those suggested in the catchment management plan to provide a workable solution and a subsequent variation to the consented CMP was required.

 

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Saving Water using Monitoring, Auditing and Modelling

Water supply resources in Australia are coming under growing pressure from an increasing demand, coupled with the likely effects of climate change resulting in more variable rainfall in catchment areas. To extend the available supply to meet our needs, the available supply must be used more carefully and wastage eliminated. The Water Savings Section of the NSW Government Architects Office has conducted water audits of government, industrial and commercial buildings across NSW and Australia including part of Sydney Water’s Every Drop Counts business program.

 

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Strategic Legislation OnRainwater Harvesting

In many parts of the World, the resurgent practice of collection and utilization of Rainwater has been promoted more by concerned individuals and Organizations , rather than by Central Governments. This has resulted in a number of ‘thumb rules’ and ‘guide books’ on the subject, depending mostly on the Geography of the area. Thailand successfully promoted the concept from the mid ’80 s, with little Government assistance and China has become a key player after 2000, with Central Government assistance. One thing in common with almost all, are the benefits accrued from an additional source of water to tide over periods of water shortages and the reduction of bills paid for piped water.

 

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Surface and Groundwater Dynamics of Rainwater Harvesting in Rajasthan, India: A GIS and Tracer Approach

As the largest and driest state in India, Rajasthan is faced with a daunting task of meeting many different water demands every year. In light of this water scarcity, rainwater harvesting (RWH) has been widely promoted in Rajasthan as a means to increase surface water supplies, as well as to recharge local groundwater. In the midst of widespread adoption, a knowledge gap exists in the understanding of the hydrologic impacts. In order to close this gap, a rainwater harvesting study was carried out from May-July 2006 in the Wakal River Basin, Rajasthan, India.

 

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Strategic Planning for Stormwater Water Quality Infrastructure A Practical Theory to Long Range Conceptual Planning for Local Governments

Commitment to long term investment in stormwater water quality requires a strategic plan for the provision of its associated infrastructure. To generate a strategic water quality infrastructure plan the region under consideration first needs to be divided into manageable planning units. Once established, each planning units can be prioritised on the basis of its pollutant generating potential. This potential is assumed to be a function of the land use within each planning unit and can be further refined to reflect sensitive receiving environments or other factors such as topography.

 

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Synthesis Of A Theoretical Framework For Understanding Factors That Catalyse And Influence Household Adoption Of Rainwater Harvesting

This paper examines the experiences of South EastQueensland (SEQ) households concerning rainwater harvesting (RH). Although the adoption of household RH is currently booming after extended stagnation at around 8% in SEQ, what actually motivates this adoption is not well understood. This paper reports on the pilot study for my doctoral thesis, which has the three aims of (a) characterising household RH adoptions in the SEQ community, (b) evaluating an original synthesis of Ecological Modernisation’s systemic perspective and Diffusion of Innovation’s actor-centred perspective as a framework to understand household RH adoption to (c) determine a valid, reliable and robust way of describing or predicting the household adoption of RH technologies.

 

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Rooftop Rainwater Harvesting For Tackling Fluoride Contaminated Ground Water

According to the Medium term fiscal plan document of the Rural Development and Panchayati Raj department of the Govt. of Karnataka nearly 5839 rural habitations in Karnataka have fluoride in excess of permissible limits in their groundwater, the only source of drinking water. Various strategies are being worked out for fluoride mitigation including identifying surface sources and drawing water from them, providing de-fluoridation units at habitation levels as well as household level, de-silting tanks and recharging ground water to dilute fluoride levels in the aquifer.

 

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The Effectiveness Of Local Stormwater Treatment Devices – A South East Queensland Case Study

The impact of urbanisation on stormwater runoff has included increased amounts of pollutants entering the waterways, which causes problems ranging from being aesthetically unpleasing to causing immeasurable damage, such as destroying the sea grass beds in South East Queensland’s Moreton Bay. This paper summaries the outcomes of a recent research project that investigated the effectiveness of installing local catchment stormwater quality treatment devices on the regional ‘whole of catchment’ water quality. This effectiveness was examined specifically for South-East Queensland conditions by using water quality data and modelling for the Carrara Catchment on the Gold Coast.

 

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