Industrial wastewater treatment

textile, rubber, paper, plastic, and cosmetic. There are many of dyes exist in industries and one of them is methyl red and through nano zerovalent iron removal of dyes from waste water. Dye industry effluents constitute one of the most problematic wastewaters to be treated not only for their high chemical and biological oxygen demands (BOD) and suspended solid and content in the toxic compounds but also for their aesthetic impact. Methyl red, if accumulates into the body by inhalation,…

There are many people who made differences in Agena, which was a small village in Ethiopia; however, Jemal Hussen, who was born in 1917 and died in 1984 made big differences than the others. He changed for his community in several ways. Jemal was the richest person in the village, so he built toilets and water lines. First, he built the first free public toilets in 1973. In Agena, Ethiopia, using toilet cost 0.50 Ethiopian cents, which was 0.10 American cents. Some people who could not pay used…

Hi, I'm Doug the water droplet I know what you're thinking you think i just sit in a puddle all day but no I go thrusting through the water cycle every day. The water cycle is when it's about to rain but not yet so you should go look up an article because I'm not going to tell you nah just kidding I'm going to go through it with you today so let's go. So first the evaporation that's when I get levitated into the sky the first thing I saw was a tree it was a small tree but it was still a tree…

Every person deserves the right to have access to clean water, and South Africa is no different, or anywhere else in the world for that matter. In developing countries, it is very devastating to see many citizens unable to have access to clean water. Yet, they still drink the water that they can get. Dirty water can make people contract diseases such as cholera, typhoid and dysentery. Then when they get the disease, they are unable to be treated. This is why it causes so many death for children.…

Have you ever heard of the Iron Giraffe? The Iron Giraffe plays a big role in giving Sudan clean drinking water. It is a wonderful gift for Sudan and especially southern Sudan. The Iron Giraffe is one of the greatest things that Sudan could ask for because it provides them with clean drinking water, and hundreds of American schools support Sudan by giving them the clean drinking water they have. Do you know what the Iron Giraffe Challenge is? It is a friendly competition between schools in…

The ancient Roman society secured fresh water from local sources like springs and wells. Besides, the society sourced water from private and public owned wells. Ancient Romans also harvested rain water from rooftops that was subsequently diverted into cisterns and jars (Mays, 2010). The traditional water sources did not satisfy the growing needs of the society, particularly the growing urban population. Later on, ancient Roman engineers developed the aqueduct technology that diverted fresh water…

The Flint water crisis is a drinking water contamination issue in Flint, Michigan that started in April, 2014. These past 3 years have been an extremely hard time for Flint residents since they have had no proper drinking or bathing water in 2 years, so residents have been taking a stand against the government by carrying around jugs full of dirty, unsafe drinking water coming from their faucets at home to protest against the inaction of the government. The residents have a lot of courage to be…

The Flint, Michigan Water Crisis In Flint, Michigan there was a water contamination problem. Flint is a majority black city where 40 percent of people live in poverty. The water crisis started in April 2014, after Flint changed its water source from treated Detroit Water and Sewerage Department water to the Flint River. After that, people started complaining about the quality of the water. City and state officials failed to see that there was a serious problem for months. (http://www.npr.org/s…

Imagine a world in which the water was undrinkable, the land was unfertile and the air was suffocating. This is the world consumed by fracking. Fracking is harmful to the environment but seems to be making its way still around the world. Understanding the risk and the benefit ration and becoming educated about the ramifications should be a requirement to the decision makers determining whether an area will allow fracking or not. “The process of this hydraulic fracturing is a well stimulation…

In the United States, a devastating water crisis is occurring. Water in the town of Flint, Michigan has been contaminated with toxic substances, resulting in residents getting sick. The problem originated from a water rehabilitation project when officials decided to build a pipeline in order to draw water from Lake Huron. However, the pipeline became too expensive and was never finished. Instead officials elected to draw municipal water from the Flint River instead. Sadly, the Flint River…