From: "China Water Supply and Drainage" Mo Hui, Liu Jianhua, Zhong Xinhua, Hu Weiqing At present, the conditions for the construction of the water system in the residential area are basically in place and are becoming more and more perfect. First of all, the residential area has a large displacement, large demand for miscellaneous water, and easy water balance, which is beneficial to the design and smooth operation of the water system. Secondly, with the scale of urban residential communities and the development of water treatment technology, the beginning of the water system Investment and operating expenses will be greatly reduced; once again, the privatization of housing, the rise and improvement of residential property management also laid the foundation for the return on investment of the water system. After adopting the water system, it is estimated that the water consumption in the residential area can be saved by 30% to 40%, and the displacement can be reduced by 35% to 50%, which will produce good social and environmental benefits. Due to the different water sources and treatment methods, the water system can take many forms, and the choice of which form is the key to the design. Taking a certain district as an example, three typical treatment methods are selected to analyze and compare the water balance, initial investment and operating costs. The whole plot is a 6-storey brick-and-concrete residential building with a total construction area of ​​10×10 4 m 2 and a plot ratio. At 1.2, the green area is 30%, with 1,100 households, 3,300 people, and 270 vehicles). 1 reused after secondary treatment
2 reused after three levels of processing 2.1 Features
3 Reuse after MBR processing 3.1 Features are characterized by:
4 Conclusion Through the comparison of the initial investment and operating costs of the three treatment methods, it can be seen that the traditional sewage treatment and reuse method (feces, sewage diversion) has lower equipment and processing costs, but the network cost of divertible drainage is increased. The initial investment is greatly improved, and the resulting high operating depreciation cost completely loses the advantage of low processing cost of the process, and thus is not suitable for use in water treatment in residential areas.  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Hospital Bed, also known as hospital bed, Hospital Equipment, Nursing Bed, etc., is a hospital bed used by patients when they are hospitalized in the hospital.
There are many classifications of medical beds, and the specific classification methods are as follows: According to the material, it can be divided into ABS medical beds, all stainless steel medical beds, semi-stainless steel medical beds, all steel sprayed medical beds, etc.
According to the function, it can be divided into electric medical beds and manual medical beds. Among them, electric medical beds can be divided into five-function electric medical beds and three-function electric medical beds. Manual medical beds can be divided into double-shake medical beds and single-shake medical beds. Medical beds, flat medical beds.
According to whether it can be moved, it can be divided into a wheeled medical bed and a right-angle medical bed. Among them, electric medical beds are generally movable with wheels.
In addition, there are other special function beds, such as: ultra-low three-function electric bed, Hospital Bed For Home, hospital bed with bedpan, scald rollover bed, rescue bed, mother-child bed, crib, child bed, ICU monitoring bed, examination bed, etc.
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