Technical Writing

Process Paragraph

It needs several stages of process to extract methane gas from household waste. First, waste is put into the warming bed. The liquid contained in the waste will gradually evaporate, leaving solid material that can be used as fertilizer. The vapor goes to the dirt trap and gets filtered, so it is separated from dirt. The dirt can be removed later by opening the release cap. Next, the vapor goes to the gas indicator. There, the vapor is turned back to liquid form for further process, which is to separate methane gas from other chemical by forming it into bubbles and then sending the bubbles to the pressure tank. The gas is distillated in the tank and become pure methane. Using pressure created by weighting a stack of inner tubes that connected to the system, the methane gas is sent to the gas holder. Now the methane inside of the holder is ready to use.

Sewage Disposal

How does sewage get processed by disposal unit? First, sewage from the main sewer flows to the settling tank and stays there for a period of time. As the time goes, the sewage is separated into solids and polluted water. The solids precipitate and form undecayed material, which has to be removed or burnt later. The water is pumped to the sprinkler beds using the power of a pump house. In the beds, the polluted water is jetted to the filter of stones and microorganisms using rotating arms, in order to clean it from corrupting chemicals. After the whole process, the water is finally purified, safe to enter river.

posted by Mohammad Satrio @ 2:03 PM