Rainwater
Throughout the year there are rain showers. It is possible to re-use the rainwater of rain showers. A part of the rainwater is discharged to surface water and unpaved area. The other part of rainwater falls on paved ground. This part of rainwater can be re-used, for example, drinking water. Rainwater as a fresh source of water to produce drinking water is currently debated in the Netherlands. Adequate regulations that deal with this issue are lacking. Hence, ambiguity remains.[vc_row css_animation=”” row_type=”row” use_row_as_full_screen_section=”no” type=”full_width” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern” z_index=””][vc_column][vc_empty_space height=”150px”][/vc_column][/vc_row][vc_row css_animation=”” row_type=”row” use_row_as_full_screen_section=”no” type=”full_width” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern” z_index=”” css=”.vc_custom_1576077524096{border-top-width: 30px !important;border-right-width: 30px !important;border-bottom-width: 30px !important;border-left-width: 30px !important;padding-top: 50px !important;padding-right: 50px !important;padding-bottom: 50px !important;padding-left: 50px !important;background-color: #ffffff !important;}”][vc_column][vc_row_inner row_type=”row” type=”full_width” text_align=”left” css_animation=”” css=”.vc_custom_1576077210611{border-top-width: 30px !important;border-right-width: 30px !important;border-bottom-width: 30px !important;border-left-width: 30px !important;padding-top: 50px !important;padding-right: 50px !important;padding-bottom: 50px !important;padding-left: 50px !important;background-color: #ffffff !important;}”][vc_column_inner width=”5/12″][vc_column_text]
Quality
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In SUPERLOCAL-monitoring will take place to understand the dynamics of rainwater quality and quantity. Furthermore, a robust modular purification plant will be built. At least a year of testing will be done before the locally made drinking water will be provided to the households. This experiment should provide insights on whether a local system has potential for such situations.
The quality of rainwater is monitored by different quality meters. There are nine different quality meters in the rainwater system. One of the meters is the environment meter.
The environment meter measures the precipitation, solar radiation, wind speed and direction, relative air humidity and temperature. Every quality meter has its units of measurement. The debit-flow measurements are the amount of water that enters the pre-filter from the roof and paved surface.
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Total plugged-in paved surface
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The surface that is plugged-in the rainwater sewer consists of the roof surface of 35 ground-bound houses and the apartment building, parking lots, roads, and walkways. The total plugged-in surface is about 6450 square meters. It is possible to expand the plugged-in surface. The expanded options are the roof of t’ Patronaat (1291 m2) and/or 25 additional free-sector houses (1209 m2).
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Buffer
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The rainwater from the roofs and impermeable areas will be transported as surface runoff (without the use of pipes) to a buffer with a capacity of 250 m3. The intention is to make the drain of rainwater visible for residents and visitors. First of all the rainwater will be filtered to avoid problems. The filter is a gravel holder that lies along the entire length of the rainwater buffer. This should ensure that no leaves flow into the buffer and that there is no accumulation.
The buffer stores rainwater underground and is capable of storing most of the rainfall and at the same time providing water for drinking water production.
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Water square
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The project area has a water square with a dual function. The first function of the water square is that the square is a recreational area in dry weather.
The second function of the water square is that it can be used as an extra buffer zone with precipitation surpluses. In the case of extreme rainfall, the excess water from the rainwater buffer is transferred to the water square. After the rain showers, and if necessary during rain showers, the water is infiltrated into (infiltration) ponds. The groundwater level is replenished, while in the current situation water is lost at a nearby creek.
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