Week 3

-
What is Water Supply?
Water supply from where the service pipe enters the building through one of the following system depending on the pressure of the water and timings of the supply which include fittings and appliances connected thereafter.

Source of Water
1.  Surface Water


2. Undergrond Water



3.Frozen water


 Water Treatment Process

Water Intake
Community water system users always received their water from a surface water source. Surface water is water that collects on the ground or in lakes, streams, river, reservoir or ocean. Surface water is constantly lost through evaporation, replenished through precipitation and seepage into ground water supplies. Ground water which is obtained from shallow wells and deep wells also one of the sources to supply community water system and drinking water.


Mixing Chamber
The raw water then enters an aerator which the pH is adjusted and water is rapidly mixed with liquid aluminium sulphate at ambient temperature. Pre-lime and a primary coagulant, poly aluminium chloride are added to help the impurities stick together to form particles called floc.

Flocculation
During this stage, the water flows into flocculation basins where the flow of water is slowed, so the floc has time to form a larger and heavier particle which are easier to remove by settling or filtration.

Filtration
Water flows through large filters made of sand, gravel and anthracite. The filtration process removes any remaining microscopic particles and microorganisms. The filters are routinely cleaned by backwashing.

Disinfection
The water is disinfected to protect it against bacteria before the water progress to the distribution system. Chlorine is used since it is very effective disinfectant. Besides, fluoride is also added to support good dental health.

Distribution
The clean water is the pumped into pipes that deliver it to housing area and industrial.
System of supply


Water supply is the provision of water by public utilities commercial organisations, community or by individuals usually via a system of pumps and pipes. Water supply have two type which is direct supply system and indirect supply system.

1. Direct Supply System
The direct supply system means send the main pressured drinking standard water to every cold tap in house including the bath, bathroom basin and kitchen sink.
2. Indirect Supply System
The indirect supply system means the water will going to overhead tank and then redistributed to fixtures by gravity.

Our Case Building


The building that we choose is Dewan Sultan Iskandar. The hall is one of the examples of building with indirect water supply system. The connection with the street main is carried directly to a tank is to handle low-flow wells or a limited water-supply.



Main pipe

Water tank

Comments

Post a Comment

Popular posts from this blog

Week 11

-
Image
LIGHTNING PROTECTION SYSTEM (LPS) What are LPS? ·          A lightning protection system provides a safe pathway for energy from a lightning strike to find its way to earth, encouraging the bolt to bypass building components that might otherwise to damaged. Example of A Lightning Protection System (LPS) Why using LPS? Lightning protection is essential for the protection of humans, structures, contents within structures, transmission lines, and electrical equipment by controlling a variety of risks resulting from thermal, mechanical, and electrical hazards of the lightning flash current. These risks can be categorized as follows: Risk to persons (and animals), Risk to structures & internal equipment 1.       Risk to persons (and animals) Direct flash, Step potential, Touch potential, Side flash, 2.    Risk to structures & internal equipment Fire and/or explosio...
Read more

Week 12

-
Image
THE SOLAR ENERGY SYSTEM  Solar energy is one of the important renewable energy that often used nowadays in line with current technology that rapidly increase within the time. Solar power systems are often used as alternative to the gas that widely used for electrical energy, is replaced with a solar energy system which is capable of converting light energy to electrical energy.  Solar energy is one of the renewable energy source that can be found on the earth. Another type of renewable energy in the earth is:  Solar energy Geothermal energy Bio energy Hybrid  Wind energy  Ocean energy  As we know, this renewable energy have many advantages than the non-renewable energy resources.   Clean   Unlimited resources Environmentally safe More cheap as the time and technologies progress.  Solar Collectors Solar collector is a device that collects and/or concentrates solar radiation from the sun. Solar ...
Read more

Week 6

-
Image
Refuse Disposal System What is Refuse Disposal System? Is a technique for the collection, treatment, and disposal of the solid wastes of a community. The development and operation of these systems is often called solid-waste management. Solid waste disposal, disposal of normally solid or semisolid materials, resulting from human and animal activities, that are useless, unwanted, or hazardous. Sources of waste There are many type of waste defined by modern system of waste management, notably including 1.       Domestic waste Domestic waste is waste that is generated because of the ordinary day-to-day use of a domestic premise and either it taken from the premises by or on behalf of the person who generated the waste or collected by or on behalf of a local government as part of a waste collection and disposal system. For example, ashes, food, paper, bottles, tins, rags, hairs, cardboard, rubber. 2.       Commercia...
Read more