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Construction of secondary pollution of water


Waterproof bit, this method can not only ensure that the fire water, nor Lack of air into the slow, easy to produce cavitation. Siphon method suggested to improve the method so that siphon the water level above the fire 0.1-0.2m, shown in dotted lines pipes,christian louboutin pas cher, wall holes lZl open position in the fire water lines, fire water when the water level drops, the tube wall hole lZl intake, eliminating cavitation, and the water level just above the point, does not affect the life of the pump to start at low levels. 2) pool (box) inside the overflow wall (plate) as shown in Figure 2, the overflow wall is located in the storage pool, live (production) by the fire water storage part of the water flow out. That is controlled by the overflow water level of the wall, this is a good way to ensure the fire water, pool water can always flow,franklin marshall pas cher, but the bottom of the overflow wall there . 3) partition method as shown in Figure 3, this method increases the pool water flows over a wall with a bottom outlet, outflow from the bottom outlet wall, into the fire pump suction wells, then the overflow wall into the life of the pump suction well, to ensure the fire wall by the overflow water level at the same time there are no stagnant water storage tank at the bottom. 4) Turn on the suction tube in the trachea of ​​this method combined pool of water pipe that is connected through a small endotracheal tube stretch fire water, air and inhaled by the destruction of a small vacuum tube, to ensure that fire water; the other hand, from the bottom of the water , so that water is circulating. Table 4 reflects the overall characteristics of a variety of design methods for the selection reference: Table 4, several design features - living water fire water r. , Ll; Il: I Si 1 siphon mites Wei River water bit. . Unitary / AIDS Law glistening wall 2 overflow pipe 44 connected living water pump snapped Maoming College in 2004 to reflect the current actual situation, due to the construction of life and fire in building the pool, the pool volume is too large, and life generally less than the total water reserves 20% of reserves, resulting in domestic water storage for too long, sometimes up to 2 to 3 days. Studies show that summer temperature is high, the water in the storage tank 12 hours after the chlorine that is zero,abercrombie fitch paris, the bacteria multiply easily and rapidly. [4] Therefore, the current 2003 reduce the extent of bacterial contamination of domestic water. In addition, the total volume of the pool construction sub-base has not increased, the cost will not increase too much, and can optimize the basement design, effective use of the basement area. Therefore, new buildings should be separated from life and set the fire pool. 3 Conclusion Figure 3 are properly connected lives across the Po to the pump suction pipe construction to solve the current problems in the water, to prevent secondary pollution of drinking water, it is necessary in the water supply system design, construction, or maintenance which should be scientific and rational use of technology methods to meet regulatory requirements, the only way to achieve [References] [1] Wang growth. Building Water Supply and Drainage. Beijing: China Building Industry Press, 2002. [2] GBS0015-2003 (building water supply and drainage design specification 85-87 [4] Fang Ruqing. high tank water supply system for water quality. Water Supply and Drainage .1997, (9) :47-49. MeasurestoProtecttheQualityofBuildingWaterSupplyLI Xia (MaomingCollege, Maoming, 525000, china) Abstract: Thesecondarypollutionofthebuildingwatersupplyinthe courseofdesign, constructionandmanagementisdiscussedinthispaper.Me ~ umswereproposedtopreventsecondarypollutionfromthep ipelinesandstoragetank.Threedesignstoassurethequal ityofdomestic-waterarerecommended.KeyWords: storagetank; secondarypollution; preventingme ~ ums; waterquality
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