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Aqueducts and Sewage Systems. Rainwater Recycling: Case Study of a Health Facility

Aqueducts and sewage systems. Rainwater recycling: case study of a health facility

The author of the essay intends to prove that water must be considered in the future as a primary resource available to all and not – as the present trend indicates - as a privately managed commodity.

The distribution of this essential resource are examined, its scarcity in several areas of the Planet discussed and proposals to mitigate the deriving problems are offered.

The study starts with a detailed analysis of the bad habits adopted by the so-called civilized community in the use of water, and ends with a series of useful rules of behaviour and technical systems to recycle and conserve it.

Emphasis is put on rainwater collection and harvesting policies and methods, which the author adopts as one of the answers to this ever-growing problem. The issue is supported by detailed hydrological records, schemes and calculations.

The core section of the research is in fact based upon the description of a rainwater harvesting system to be implemented on a health facility located in Southern Italy.

The system is thoroughly described and its costs/benefits analyzed in full detail.

1 Rainwater collection/harvesting Raccolta acqua piovana
2 Recycling Riciclaggio/riutilizzo
3 Drainage Scarico/drenaggio
4 Stormwater Acque meteoriche/bianche
5 Sewage Acque nere
6 Roof gutter Grondaia
7 Down-pipe Discendente pluviale
8 Watershed Falda acquifera
9 Collection tank Serbatoio di stoccaggio
10 Filtering system Sistema di filtraggio
11 Catchment area Area di captazione
12 Conveyance loss Perdite della rete distributiva
13 Water distribution network Rete idrica
14 Outflow mouth Bocca di efflusso
15 Delivery Portata
16 Rainfall likelihood curve Curva possibilità pluviometrica
17 Mainpipe Collettore
18 Flushing device Dispositivo di scarico
19 Kinematic model Modello cinematico
20 Capacity Capacità

Mostra/Nascondi contenuto.
1. INTRODUCTION Water is a very topical subject in times when the attention of the world is focused on the planet’s environment and ecology in an increasingly critical and uncertain age. Drought, desertification, scarcity of drinking water and all the problems which, until a few decades ago, seemed to concern only limited areas of the Earth suffering a particularly adverse climate, are now perceived with anxiety by the whole world. There are many causes for water shortage and they can be summarized in the following points: . 9 a rise of the average temperatures and climate conditions turmoil; . 9 a rise of demand; . 9 an incorrect use of resources ( due to the limited importance often attributed to it) 9 a general inefficiency in transportation and distribution systems. Consequently every summer we are assailed by the usual media lecture on the scarcity of water and every news program casts drought alerts with the enclosed standard images of dry rivers and parched crops. Fig. 1.1 In spite of this, Italians keep flushing their toilets with drinking water. The main concept to be understood is that, even though water is a renewable resource, it exists in a quantity that cannot be increased but annually renews itself through a cycle. According to these considerations it’s easy to understand that the total availability tends to become smaller. There is a remedy to this, and it’s available to (almost) everybody. What water we consume daily for drinking and household use accounts for only the least part of our consumptions. For washing clothes, flushing toilets, keeping homes clean, washing the car and watering the lawn we could use “less valuable” water. Notably rainwater is the ideal solution for these kinds necessities. The result 5


Traduttore: Julian Albert Vertefeuille Contatta »

Composta da 125 pagine.


Questa tesi ha raggiunto 297 click dal 03/12/2008.


Consultata integralmente 2 volte.

Disponibile in PDF, la consultazione è esclusivamente in formato digitale.



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