Analysis of Common Problems in Water Supply, Drainage and Heating Construction of Buildings

2021 ◽  
Keyword(s):  
Author(s):  
Miao Zhaojing ◽  
Xu Zhaolong

In recent years, the quality of people’s lifestyle has significantly increased when the speed of social and economic development is accelerating. Among them, the management of city water supply and drainage construction quality can provide the necessary guarantee for the improvement of people's quality of life, so the scientific of construction quality management will also become the focus of urban modernization. However, there are many problems in the management of water supply and drainage construction quality in cities after considering the real situation. If the problems are not solved as soon as possible, it will affect people’s daily life and works badly and also restrict the development of urbanization. Therefore, the implementation and practical of city water supply and drainage construction quality management is very important. Based on this, the main research content of this article is about the city water supply and drainage construction quality management and to elaborate the existed common problems and raises up some technical points and hopes that this article content can help in management of drainage construction quality.


Author(s):  
Javier Paredes-Arquiola ◽  
Javier Macián ◽  
María Pedro-Monzonís ◽  
Edgar Belda ◽  
Andrea Momblanch ◽  
...  

Abstract. Drought and water shortage effects are normally exacerbated due to collateral impacts on water quality, since low streamflow affects water quality in rivers and water uses depend on it. One of the most common problems during drought conditions is maintaining a good water quality while securing the water supply to demands. This research analyses the case of the Turia River Water Resource System located in Eastern Spain. Its main water demand comes as urban demand from Valencia City, which intake is located in the final stretch of the river, where streamflow may become very low during droughts. As a result, during drought conditions concentrations of pathogens and other contaminants increase, compromising the water supply to Valencia City. In order to define possible solutions for the above-mentioned problem, we have developed an integrated model for simulating water management and water quality in the Turia River Basin to propose solutions for water quality problems under water scarcity. For this purpose, the Decision Support System Shell AQUATOOL has been used. The results demonstrate the importance of applying environmental flows as a measure of reducing pollutant's concentration depending on the evolution of a drought event and the state of the water resources system.


Author(s):  
O. Mudroch ◽  
J. R. Kramer

Approximately 60,000 tons per day of waste from taconite mining, tailing, are added to the west arm of Lake Superior at Silver Bay. Tailings contain nearly the same amount of quartz and amphibole asbestos, cummingtonite and actinolite in fibrous form. Cummingtonite fibres from 0.01μm in length have been found in the water supply for Minnesota municipalities.The purpose of the research work was to develop a method for asbestos fibre counts and identification in water and apply it for the enumeration of fibres in water samples collected(a) at various stations in Lake Superior at two depth: lm and at the bottom.(b) from various rivers in Lake Superior Drainage Basin.


Author(s):  
B.D. Tall ◽  
K.S. George ◽  
R. T. Gray ◽  
H.N. Williams

Studies of bacterial behavior in many environments have shown that most organisms attach to surfaces, forming communities of microcolonies called biofilms. In contaminated medical devices, biofilms may serve both as reservoirs and as inocula for the initiation of infections. Recently, there has been much concern about the potential of dental units to transmit infections. Because the mechanisms of biofilm formation are ill-defined, we investigated the behavior and formation of a biofilm associated with tubing leading to the water syringe of a dental unit over a period of 1 month.


1981 ◽  
Vol 26 (7) ◽  
pp. 564-564
Author(s):  
Barclay Martin
Keyword(s):  

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