Saturday 2 June 2007

Very-late task

Working Children

In many countries, especially developed countries, children engaged in child labor. The International Labor Organization (ILO) has estimated that 218 million children between the ages of five and seventeen work in developing countries. The vast majority,, over 80 percent, are working in agriculture and factory. Child agricultural and industrial workers frequently work for long hours in heat, haul heavy loads of produce, are exposed to toxic materials, and suffer high rates of injury from sharp knives and other dangerous tools. Their work is grueling and harsh, violating their rights to health, education, and protection from work that is hazardous or exploitative. People saw that healthy children had plenty of energy could do much to help their work. They thought that children learned new skills when they worked. In these ways, work can be good. But it is not good when it stops children from growing into strong, happy adults. Children need to play. They need to get enough sleep. They need to eat well. They need school.

In my opinion, children shouldn’t work and engaged as worker. They need their ‘time’ as children, play, school, and other ‘children’ things. Don’t push them into working ‘area’, because they do really need their time to grow.

Task

Sewage Disposal

Sewage disposal unit consists of three steps process. The process begins in settling tank, the polluted waters flows to it from the main sewer. There, the undecayed solids contained in the polluted water are left in the bottom of the tank and then removed and burned. After that, the water is distributed to the pump house. The pump house pumps the polluted water to the third step of the process which is the sprinkler bed. The sprinkler bed is a filter to stones and microorganisms which consists of brick and rotating arms. So this process can make water less polluted by removing organic material in the polluted water or we can call it purifying the water. Then, the purified water distribute back to the river through pipe.

Water Process

Distribution of the water in the house isn’t as complicated as we thought. Its an easy process. First, the water pump pumps cold water through the pipe from the underground. Cold water then distributed to cold water tank, while some of them is distributed directly to the house water outlets in the bathroom such as bath-tub, wash basin, toilet, and sink in the kitchen. The water in the cold water tank then transferred to hot water tank, to be heated. Then the heated water distributed through pipes to water outlets like bath-tub, sink, and wash basin.

Friday 1 June 2007

Water Process

Water Process in House

Cold water was supplied from main pipe in the basement of the house and pumped to several pipes connected to the water outlets. The water outlets are sink at the first floor, bath-tub, wash basin and toilet's flush in the bathroom at the second floor, and also the cold water tank at the rooftop. From the cold water tank, the water is transferred to the hot water tank to be heated. Then the hot water is distributed to sink at the first floor and also bath-tub and wash basin in the bathroom at the second floor.

Sewage Disposal Unit

Sewage Disposal Unit

Basically, Sewage Disposal Unit works simply. First, polluted water flows through main sewer to settling tank. In the settling tank, the undecayed solid is separated from the polluted water and stays on the bottom of the tank. Next, it will be removed and get burned outside. Meanwhile, the liquid or polluted water is flowing to the pump house. The pump house then pumps the polluted water to the sprinkler bed. In the sprinkler beds, the polluted water is cleaned by the brick work and rotating arms mechanism. Stones and micro-organisms are filtered in this process. Finally, the purified water is ready to be flown back to the river.