Showing posts with label environment. Show all posts

Stay in Jambi - Part 1. Research



Hello, PARE friends. Today, I post my situation in Jambi, Sumatra Island.

In order to conduct my research, I left Bogor in west of Java Island. Now, I have stayed in Jambi for one month and I will stay there until the end of January. Jambi is south east province in Sumatra Island and especially the place I stay is located in coastal area. In November, there were worried by haze problem(thick smoke) due to peat fire during dry season but the rainy season has started and the haze disappeared. 

the place to wash clothes and body
young oil palm along the river
measuring oil palm fruits weight with scale


My research focuses on the greenhouse gas emission from the acid sulfate soil. I take gas and soil samples in order to measure gas emission and controlling factor of the emission in the agricultural field in Jambi. Because the place I stay is coastal area, there has a lot of acid sulfate soil affected sea water. Once the soil got drained, sulfide in the soil got oxidized and produce much amount of sulfate ion (SO42-) then decrease its pH. 

paddy field including oil palm

gas sampling in the paddy

Even though working in the hot agricultural field exhausts me and the live in this place has difference from city area, I will work hard and contribute to this place through suggesting less environmental damage agriculture. See you again.

See you again!

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Fly Ash

Hello everybody! I hope you still warm even in this cold weather :)


Now I will tell you about what I do in my laboratory. My laboratory is solid waste disposal engineering laboratory. This laboratory is located on Faculty of Engineering Building, Section A, 5th floor, room number A5-58. 


In this laboratory, I belong to incineration system research group. Specifically, I study about fly ash. What is fly ash? Fly ash is residue that generated from incineration (burning) process of waste along with the flue (exhaust) gases. The appearance of fly ash is just like ordinary dust. But be careful! This dust has various size from 5 to 300 µm and maybe it will cause health problem if you inhale the very small size particles. 

Fly ash (U.S. Concrete, 2011)

Considering this health risk, you will not see this dust (fly ash) is released from the chimney of the incineration plant in Japan. Fly ash cannot be released into the environment through the chimney because it will cause air pollution. So, the fly ash should be trapped in an equipment to be disposed later in the landfill. The fly ash is trapped in some kind of device called air pollution control.

My experiment is to investigate the characteristics of the fly ash. This week I investigate about physical characteristics of the fly ash. I analyze the density of the fly ash by weigh the weight of the fly ash and measure the volume of the fly ash. Moreover, I analyze about the compressibility of the fly ash.
Fly ash samples


Equipment for measuring density of fly ash

My Senpai teaches me how to analyze the compressibility of fly ash



This is all I can say to you this time. See you.

Regards,
ulfi


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