Lawrence Experiment Station
Encyclopedia
The Lawrence Experiment Station, now known as the Senator William X. Wall Experiment Station, was the world's first trial station for drinking water purification
Water purification
Water purification is the process of removing undesirable chemicals, materials, and biological contaminants from contaminated water. The goal is to produce water fit for a specific purpose...

 and sewage treatment
Sewage treatment
Sewage treatment, or domestic wastewater treatment, is the process of removing contaminants from wastewater and household sewage, both runoff and domestic. It includes physical, chemical, and biological processes to remove physical, chemical and biological contaminants...

. It was constructed in 1887 at 37 Shattuck Street, Lawrence, Massachusetts
Lawrence, Massachusetts
Lawrence is a city in Essex County, Massachusetts, United States on the Merrimack River. According to the 2010 U.S. Census, the city had a total population of 76,377. Surrounding communities include Methuen to the north, Andover to the southwest, and North Andover to the southeast. It and Salem are...

, and is now on the List of historic civil engineering landmarks.

Lawrence Station was established by the Massachusetts State Board of Health, based on the earlier work of scientists William Thompson Sedgwick
William Thompson Sedgwick
William Thompson Sedgwick was a key figure in shaping public health in the United States.William T...

 and Theobald Smith
Theobald Smith
Theobald Smith ForMemRS was a pioneering epidemiologist and pathologist and is widely-considered to be America's first internationally-significant medical research scientist.- Education :...

 who understood the linkage of water-borne germs to specific diseases. In 1886 the Massachusetts legislature required its Board of Health to adopt water pollution standards, which led to creation of the station under the direction of Hiram Francis Mills, the "Father of American Sanitary Engineering". MIT professors William Ripley Nichols
William Ripley Nichols
William Ripley Nichols was a noted American chemist.-Early life:Nichols was born in Boston, Massachusetts, graduated from the Massachusetts Institute of Technology in 1869, and served there as instructor and assistant professor until 1872, when he was elected professor of general chemistry, which...

, Ellen Swallow Richards
Ellen Swallow Richards
Ellen Henrietta Swallow Richards was the foremost female industrial and environmental chemist in the United States in the 19th century, pioneering the field of home economics. Richards graduated from Westford Academy...

, and Thomas Messinger Drown
Thomas Messinger Drown
Thomas Messinger Drown was the fourth University President of Lehigh University in Bethlehem, Pennsylvania.-Background:...

 also played important early roles.

In those first days, the station's main mission was to develop practical methods for treating wastewater. Its first task as to determine the effect of filtration as compared to natural oxidation, which it decided by experiments in its chemistry laboratory. During this time, Sedgwick and students invented techniques for identifying and quantitatively analyzing the microorganisms in water and sewage. These studies helped set the standards in Massachusetts
Massachusetts
The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...

, other states, and other countries.

A bacteriological
Bacteriology
Bacteriology is the study of bacteria. This subdivision of microbiology involves the identification, classification, and characterization of bacterial species...

 laboratory was added two years later. In 1893 when a typhoid epidemic (Salmonella typhi) arose along the Merrimack River
Merrimack River
The Merrimack River is a river in the northeastern United States. It rises at the confluence of the Pemigewasset and Winnipesaukee rivers in Franklin, New Hampshire, flows southward into Massachusetts, and then flows northeast until it empties into the Atlantic Ocean at Newburyport...

, the City of Lawrence began filtration of river water using Mills' slow sand filters, thus becoming the first American city to filter its water for disease prevention. This filtering led to marked reductions in typhoid fever rate and overall death rate in the city.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK