Tag Archives: disinfection

#TDIWH—February 4, 1909: Second Use of Chlorine in the U.S.; 1877: Birth of C.E.A. Winslow

Little Falls Water Treatment Plant

Little Falls Water Treatment Plant

February 4, 1909: Dr. John L. Leal testified at the second Jersey City trial about the first use of chlorine for continuous disinfection of a U.S. water supply at Boonton Reservoir, which was the water supply for Jersey City, New Jersey. The transcript from February 5, 1909, revealed that Leal had also installed a chloride of lime feed system at the filtration plant at Little Falls, New Jersey. He stated that he had experimented with chloride of lime addition some months before and that he was now using it daily. Thus, the trial transcript provides the first written evidence of the second continuous use of chlorine to disinfect a drinking water supply. This was also the first time chlorine was used in conjunction with mechanical filtration.

Reference: McGuire, Michael J. 2013. The Chlorine Revolution: Water Disinfection and the Fight to Save Lives. Denver, CO:American Water Works Association.

0108 CEA WinslowFebruary 4, 1877: Charles-Edward A. Winslow is born. “Charles-Edward Amory Winslow (4 February 1877 – 8 January 1957) was an American bacteriologist and public health expert who was, according to the Encyclopedia of Public Health, “a seminal figure in public health, not only in his own country, the United States, but in the wider Western world.”

Winslow was born in Boston, Massachusetts and attended Massachusetts Institute of Technology (M.I.T.), obtaining a B.S. in 1898 and an M.S. in 1910.

He began his career as a bacteriologist. He met Anne Fuller Rogers when they were students in William T. Sedgwick’s laboratory at M.I.T., and married her in 1907. He taught at the Massachusetts Institute of Technology while heading the sewage experiment station from 1908 to 1910, then taught at the College of the City of New York from 1910 to 1914.

He was the youngest charter member of the Society of American Bacteriologists when that organization was founded in 1899. With Samuel Cate Prescott he published the first American textbook on the elements of water bacteriology.

In 1915 he founded the Yale Department of Public Health within the Yale Medical School, and he was professor and chairman of the Department until he retired in 1945. (The Department became the Yale School of Public Health after accreditation was introduced in 1947.) During a time dominated by discoveries in bacteriology, he emphasized a broader perspective on causation, adopting a more holistic perspective. The department under his direction was a catalyst for health reform in Connecticut. He was the first director of Yale’s J.B. Pierce Laboratory, serving from 1932 to 1957. Winslow was also instrumental in founding the Yale School of Nursing.

He was the first Editor-in-Chief of the Journal of Bacteriology, serving in that position from 1916 to 1944. He was also editor of the American Journal of Public Health from 1944 to 1954. He was curator of public health at the American Museum of Natural History from 1910 to 1922. In 1926 he became president of the American Public Health Association, and in the 1950s was a consultant to the World Health Organization.”

#TDIWH—January 15, 2009: PFOA Provisional Health Advisory; 1917: Death of William J. Magie

Perfluorooctanoic acid (PFOA)

Perfluorooctanoic acid (PFOA)

January 15, 2009: On January 15, 2009, the USEPA set a provisional health advisory level for PFOA of 0.4 parts per billion in drinking water. “Perfluorooctanoic acid (PFOA), also known as C8 and perfluorooctanoate, is a synthetic, stable perfluorinated carboxylic acid and fluorosurfactant. One industrial application is as a surfactant in the emulsion polymerization of fluoropolymers. It has been used in the manufacture of such prominent consumer goods as Teflon and Gore-Tex. PFOA has been manufactured since the 1940s in industrial quantities. It is also formed by the degradation of precursors such as some fluorotelomers.

PFOA persists indefinitely in the environment. It is a toxicant and carcinogen in animals. PFOA has been detected in the blood of more than 98% of the general US population in the low and sub-parts per billion range, and levels are higher in chemical plant employees and surrounding subpopulations. Exposure has been associated with increased cholesterol and uric acid levels, and recently higher serum levels of PFOA were found to be associated with increased risk of chronic kidney disease in the general United States population, consistent with earlier animal studies. ‘This association was independent of confounders such as age, sex, race/ethnicity, body mass index, diabetes, hypertension, and serum cholesterol level.’”

0115 Boonton Hypochlorite houseJanuary 15, 1917: Death of William J. Magie. In 1899, Jersey City, New Jersey contracted for the construction of a new water supply on the Rockaway River, which was 23 miles west of the City. The water supply included a dam, reservoir and 23-mile pipeline and was completed on May 4, 1904. As was common during this time period, no treatment (except for detention and sedimentation fostered by Boonton Reservoir) was provided to the water supply. City officials were not pleased with the project as delivered by the private water company and filed a lawsuit in the Chancery Court of New Jersey. Among the many complaints by Jersey City officials was the contention that the water served to the City was not “pure and wholesome” as required by the contract. William J. Magie was selected by Vice Chancellor Frederic W. Stevens to hear the second part of the case in which the use of chlorine for disinfection was a contentious issue. One might assume that someone relatively junior might be appointed as the Special Master to hear the highly technical and excruciatingly long arguments from both sides of the case. Not so. William Jay Magie was one of the most revered judges of this time period. He took the role of Special Master in 1908 after completing 8 years as Chancellor of the Court of Chancery. Prior to that, he was a member of the New Jersey Senate (1876-1878), Associate Justice of the New Jersey Supreme Court (1880-1897) and Chief Justice of the same court from 1897 to 1900. (Marquis 1913)

“As a trial judge his cases were handled with notable success, as he had ample experience in trying causes before juries and a just appreciation of the worth of human testimony…” (Keasbey 1912) Judge Magie would need all of his powers of appreciation of human testimony in the second trial, which boiled down to which of the expert witnesses could be believed when both sides marshaled some of the most eminent doctors, scientists and engineers in the land.

Judge Magie was born on December 9, 1832 in Elizabeth, New Jersey and lived his life in that town. He graduated from Princeton College in 1852 and studied law under an attorney in Elizabeth. He was admitted to the bar of New Jersey in 1856. At the time of the second trial in 1909 he was 77 years old and near the end of his distinguished career.

On May 9, 1910, William J. Magie submitted his Special Master Report. One of Magie’s findings was of critical importance to the defendants because he laid to rest the concern that chlorine was a poison that would harm members of the public who consumed the water.

“Upon the proofs before me, I also find that the solution described leaves no deleterious substance in the water. It does produce a slight increase of hardness, but the increase is so slight as in my judgment to be negligible.” (Magie, In Chancery of New Jersey, 1910)

The Special Master Report then delivered the finding that defendants had been waiting for:

“I do therefore find and report that this device is capable of rendering the water delivered to Jersey City, pure and wholesome, for the purposes for which it is intended, and is effective in removing from the water those dangerous germs which were deemed by the decree to possibly exist therein at certain times.” (emphasis added) (Magie, In Chancery of New Jersey, 1910)

Magie’s finding summarized in this one sentence approved the use of chlorine for drinking water. After this ruling, the use of chlorine for drinking water disinfection exploded across the U.S. (McGuire 2013)

In a filing after Magie’s final decree, compensation for Judge Magie was noted as $18,000 for the entire second trial with its 38 days of testimony over 14 months, dozens of briefs and hundreds of exhibits. It must have been the hardest $18,000 he ever earned.

References:

  • Keasbey, E.Q. (1912). The Courts and Lawyers of New Jersey, 1661-1912. Vol. 3, New York:Lewis Historical Publishing Co.
  • Magie, William J. (1910). In Chancery of New Jersey: Between the Mayor and Aldermen of Jersey City, Complainant, and the Jersey City Water Supply Co., Defendant. Report for Hon. W.J. Magie, special master on cost of sewers, etc., and on efficiency of sterilization plant at Boonton, Press Chronicle Co., Jersey City, New Jersey, (Case Number 27/475-Z-45-314), 1-15.
  • Marquis, Albert N. (1913). Who’s Who in America. 7, Chicago:A.N. Marquis.
  • McGuire, Michael J. (2013). The Chlorine Revolution: Water Disinfection and the Fight to Save Lives. Denver, CO:American Water Works Association.

January 6, 1875: Birth of Harriette Chick

0106 Harriette ChickJanuary 6, 1875: Birth of Harriette Chick. “Dr. Dame Harriette Chick, DBE (6 January 1875 – 9 July 1977) was a notable British protein scientist and nutritionist. She developed the first relationship showing bacterial kill as a function of disinfectant concentration and contact time. Educated at Notting Hill & Ealing High School, She served as secretary of the League of Nations health section committee on the physiological bases of nutrition from 1934 to 1937. In 1941 she was a founding member of the Nutrition Society, of which she served as president from 1956 to 1959.

Chick and Charles James Martin discovered that the process of protein denaturation was distinct from protein coagulation (or flocculation), beginning the modern understanding of protein folding. She is known for having formulated Chick’s Law in 1908, giving the relationship between the kill efficiency of organisms and contact time with a disinfectant. Chick’s Law was later modified by Dr. H.E. Watson in 1908 to include the coefficient of specific lethality. The Chick-Watson Equation is still used today.

In 1915, she went to the Lister Institute in Elstree to test and bottle tetanus antitoxin for the army. Together with Dr. Elsie Dalyell, she led a team from the Lister Institute and the Medical Research Institute in 1922 to study the relation of nutrition to bone disease. They discovered the nutritional factor causing rickets, and proved that fat-soluble vitamins present in cod liver oil, or exposure to ultra violet light, could cure and prevent rickets in children. She worked at the Lister Institute for over fifty years, and isolated vitamin C in various other fruits and vegetables.”

Chick’s Law-Basis of Disinfectant validation and D value. “In 1908 a British scientist, Dr. Harriet Chick, described a method for estimating the destruction of microorganisms by chemical disinfectants (Chick 1908). She postulated that the microbial mortality would follow what in physical chemistry would be called ‘first-order kinetics’—that is, mortality vs time data plots as a straight line on a semi-logarithmic graph. In practice, her postulate was correct and the law works for all liquid disinfectants and for many sterilization processes (for example, Chick’s Law has evolved into what is now referred to as D-value in autoclave sterilization).

This simple ‘Law’ (actually an equation) was modified quickly to account for varying disinfectant concentrations, and the pH of the disinfectant solution and the modified equation is now commonly called the ‘Chick-Watson Law.’”

Reference: Chick, Harriette. (1908). “An Investigation of the Laws of Disinfection.” The Journal of Hygiene. 8:1 92-158.

December 22, 1877: Nascent Oxygen; 1998: Pollution Runs Through It

Nascent Oxygen Theory

Nascent Oxygen Theory

December 22, 1877: Publication date for “The Nascent State as Affecting Chemical Action.” (Davies 1877) Before we understood that oxidation-reduction reactions involved electron transfers, chemists theorized that oxygen existed in a “nascent state.” This state made it possible for oxidation reactions to take place. Such an outmoded chemistry concept is relevant to a discussion of the history of chlorination in the U.S.

The first continuous use of chlorine to disinfect a U.S. water supply occurred at Boonton Reservoir—the water supply for Jersey City, New Jersey. As recounted in a forthcoming book (The Chlorine Revolution), two trials defined the need for disinfection and documented how it happened. In the second Jersey City trial, Dr. John L. Leal claimed that chlorine was not responsible for killing bacteria. Instead, he put forth the long-standing theory that chlorine when added to water liberated something called nascent oxygen, and it was the nascent oxygen was responsible for disinfection. (McGuire 2013)

The concept of nascent oxygen originated with James Watt, who described the importance of liberated oxygen in the bleaching process. An equation suggested by Watt (Race 1918) showed chlorine producing oxygen when it was dissolved in water:

Cl2 + H2O = 2HCl + O

In which Cl2 = chlorine, H2O = water, HCl = hydrochloric acid, and O = nascent oxygen.

In a later, well-known publication, Albert D. Hooker stated the theory most clearly: “It should be well understood that chloride of lime, in its industrial application of bleaching, deodorizing, or disinfecting, does not act by its chlorine, but by its oxygen.” (Emphasis in original.) (Hooker 1913)

In 1918, Joseph Race described the controversy surrounding chlorine’s mode of action in water. Race stated that Fischer and Proskauer (1884) believed that chlorine was not directly toxic. Warouzoff, Winograoff, and Kolessnikoff (1886) found that chlorine gas killed airborne tetanus spores. Interestingly, Race quoted at length John L. Leal’s second-trial testimony supporting the theory of disinfection by nascent or potential oxygen. However, Race’s laboratory work in 1915–17 appeared to convince him that disinfection was caused by the direct toxic action of chlorine and not by nascent oxygen. (Race 1918)

Other publications reflected the confusion over chlorine’s mechanism of action. In his 1917 textbook, Ellms (who would testify in the second Jersey City trial) presented equations showing the formation of hypochlorous acid (HOCl) when chlorine was added to water. At this point in his discussion, he was correct. However, he then stated “The HOCL is decomposed into HCl and oxygen, which latter acts upon any oxidizable matter that may be present.” (Ellms 1917)

2HOCL à 2HCl + O2

In this case, HOCl = hypochlorous acid and O2 = oxygen.

“The energy liberated by the decomposition of the hypochlorous acid, as previously stated, explains the powerful oxidizing action of the evolved oxygen, and the destructive effect upon the microorganisms. Chlorine or the hypochlorites are therefore, merely agents for the production of oxygen under conditions which render it extremely active.” (Ellms 1917)

Abel Wolman and I.H. Enslow tried to put a stop to the nascent oxygen theory in 1919, but it persisted long after that. (Fair and Geyer 1954) We know now that HOCl exists in water in equilibrium with the dissociated hypochlorite ion and that the degree of dissociation is a function of the water’s pH.

HOCL ↔ OCl + H+

For this equation, OCl = hypochlorite ion and H+ = hydrogen ion.

In a textbook published in 1924, authors F.E. Turneaure and H.L. Russell tried to straddle the issue:

“The reaction of both hypochlorite and liquid chlorine in sterilization of water is substantially the same. The accepted theory is that the chlorine forms hypochlorous acid with the water setting free nascent oxygen which is considered the effective sterilization agent. Some authorities, however, contend that the chlorine itself has a toxic effect upon the bacteria.” (Turneaure and Russell 1924)

A 1935 rewrite of Sedgwick’s famous book on sanitary science favored the direct action of chlorine theory but did not totally discount the action by nascent oxygen.

“The mechanism by which chlorine brings about germicidal action is still undetermined. It is believed by some that the bacteria are destroyed because of the direct toxic effect of the chlorine. Others maintain that the introduction of chlorine into water results in the formation of hypochlorous acid—an unstable compound—which breaks up and liberates nascent oxygen and hydrochloric acid, the supposition being that the bacteria are destroyed by the nascent oxygen. . . . Since chlorine compounds can destroy bacteria even when oxygen is not liberated it would seem that those mechanisms that explain the germicidal action of chlorine without hypothesizing the formation of nascent oxygen have a more sound scientific basis.” (Prescott and Horwood 1935)

A 1944 publication by S.L. Chang appeared to put the controversy to rest: “The action of chlorine and chloramine compounds on cysts was attributed to the active chlorine which may oxidize or chlorinate the proteins in the protoplasm. The possibility of action by nascent oxygen liberated by HOCl was indirectly studied, and the evidence strongly indicated that this was unlikely to occur.” (Chang 1944) Since Chang’s publication, nascent oxygen has not been mentioned in professional publications except as a historical curiosity.

In their classic 1954 textbook on water and wastewater engineering, Gordon M. Fair and John C. Geyer addressed the historically curious concept and stated categorically that oxygen did not accomplish disinfection. It was chlorine in its various forms in water that was toxic to bacteria. (Fair and Geyer 1954) Like many a scientific theory that conveniently explained a troubling public relations problem, it took a lot of time to kill the nascent oxygen idea.

References:

  • Chang, S.L. 1944. “Destruction of Micro-Organisms.” Journal AWWA. 36:11 1192-1207.
  • Davies, Edward. 1878. “The Nascent State as Affecting Chemical Action.” The Pharmaceutical Journal and Transactions. 8: 485-6.
  • Ellms, Joseph W. 1917. Water Purification. New York City, N.Y.: McGraw-Hill.
  • Fair, Gordon M., and John C. Geyer. 1954. Water Supply and Waste-water Disposal. New York City, N.Y.: John Wiley & Sons, Inc.
  • Hooker, Albert D. 1913. Chloride of Lime in Sanitation. New York City, N.Y.: John Wiley & Sons.
  • McGuire, Michael J. The Chlorine Revolution: Water Disinfection and the Fight to Save Lives. Denver:American Water Works Association, 2013.
  • Prescott, Samuel C. and Murray P. Horwood. 1935. Sedgwick’s Principles of Sanitary Science and the Public Health: Rewritten and Enlarged. New York:McMillan.
  • Race, Joseph. 1918. Chlorination of Water. New York City, N.Y.: John Wiley & Sons.
  • Turneaure, F.E., and H.L. Russell. 1924. Public Water-Supplies: Requirements, Resources, and the Construction of Works. 3rd Edition. New York City, N.Y.: John Wiley & Sons, Inc.
Polluted South Platte River

Polluted South Platte River

December 22, 1998: New York Times headline—Observatory: Pollution Runs Through It. “A river is like a highway, flowing through the landscape. Unfortunately, according to a new study, it is also like a car, polluting the air as it rolls along.

 

Scientists from the United States Geological Survey, in a study of the South Platte River in Nebraska and Colorado, determined that the river gives off large amounts of nitrous oxide, a gas that acts as a catalyst in the destruction of ozone in the atmosphere.

 

Like many rivers, the South Platte is rich in nitrates and ammonium, from agricultural runoff and the discharges from sewage treatment plants.

 

Microbes turn these nitrogen sources into nitrous oxide. The researchers, whose work was published in the Internet edition of Environmental Science and Technology, found that the river in many places was supersaturated in nitrous oxide, with the result that much of it entered the atmosphere.

 

The scientists estimated that the amount of the gas emitted along a 450-mile stretch of the river each year was equivalent to that produced by all the worst sewage treatment plants in the United States.

 

And although they said more studies were needed, they added that if the South Platte is typical, as seems likely, rivers are a major source of man-made nitrous oxide pollution.”

December 21, 1868: Birth of George Warren Fuller

George Warren Fuller, 1903, 35 years old

George Warren Fuller, 1903, 35 years old

December 21, 1868: Birth of George Warren Fuller in Franklin, Massachusetts. George Warren Fuller was, quite simply, the greatest sanitary engineer of his time, and his time was long—lasting from 1895 to 1934.  In truth, we have not seen his like since.  How did he reach the pinnacle of his field?  What early influences led him on his path? There is a biography of Fuller on Wikipedia that I wrote which summarizes his life from a “neutral point of view.” The material below is taken in part from Chapter 7 of The Chlorine Revolution:  Water Disinfection and the Fight To Save Lives. By design, it gives more of a personal flavor to his life.

George Warren Fuller was born in Franklin, Massachusetts on December 21, 1868—ten years after the death of Dr. John Snow and ten years after the birth of Dr. John L. Leal.  He was the son of George Newell Fuller and Harriet Martha Craig. There is not much known about his father who was simply described as a farmer.  His father was born on the Fuller family property in Franklin, Massachusetts on November 22, 1819.

Harriet Martha Craig was born on February 2, 1841, grew up near Leicester, Massachusetts, and attended Mount Holyoke College, but she did not graduate.  Her final year at the institution was 1865.  They were married on November 15, 1866 when he was 46 and she was only 25.  They settled down in the Franklin-Medway area of rural Massachusetts for a quiet life of farming on the ancestral Fuller family property.  They had two children, George W. and Mabel B. who was born in 1876.  We know that George kept in touch with his younger sister in later years.  She married Carl W. DeVoe and moved to Jerome, Idaho. George owned a ranch in Idaho and must have visited her there.

Place names in Massachusetts have changed over the past several hundred years as the land area covering certain towns changed due to the expansion and contraction of town boundaries or as a result of new towns being carved off from old ones.  Towns that figured prominently in Fuller’s history, Dedham, Franklin and West Medway, all describe the same general area, which is about 10-25 miles southwest of Boston.

We know only a little about his early education.  One report observed:

“George Warren Fuller was at the head of his class when he attended the Dedham schools. His scholarship was, of course, a source of great satisfaction to his mother. At sixteen he passed the examination for entrance at MIT but, his father having died a few weeks before, it was thought best for him to have a fourth year in high school….”

After his father’s death on May 3, 1885, his mother moved 2,500 miles away to Claremont, California where she lived until she died in 1915.  George must have felt that he had lost both parents at the same time.  We do not know if he was looking for a stable family life to replace the one he had lost, but we do know that he married when he was only two years out of high school, in 1888.  His first wife, Lucy Hunter was born in October 1869 and died far too young on March 18, 1895. Lucy came from a family who immigrated to America from New Brunswick and Prince Edward Island.  Her father was born about 1830 and listed his occupation as farmer.  Her mother, Sarah, was born about 1845.  The farming family had seven children, three boys and four girls.  They must have moved to Boston from New Brunswick sometime between 1877 and 1880.  The youngest boy, Harry, was born in New Brunswick about 1877. I recently heard from a descendant of Lucy Fuller who was researching her family. According to her second cousin, three times removed, the family was sailing from Northern Ireland to Philadelphia in 1767 when their ship was wrecked off of Nova Scotia. Lucy’s family eventually made it to Boston while many of the other Hunters moved on to Ontario, Canada.

In 1880, the U.S. census showed that her family lived in Boston at 218 Bennington Street, which is now near Boston Logan International Airport and was located near cultivated land in the late 1800s.  The address is about three miles from the MIT campus, as the crow flies.

Lucy was 18 years old and Fuller was 20 years old when they were married.  Fuller was only in his second year at university (1886-1890).  They had one son, Myron E. Fuller who was born in Boston on June 4, 1889. We do not know much about the marriage, but we do know that George W. Fuller was issued a passport on May 2, 1890 for his trip to Germany and his continued studies. There is no record that Lucy or Myron applied for a passport or accompanied Fuller to Germany.  Massachusetts death records listed her cause of death as “enteritis” which was a general term used for diseases caused by the ingestion of pathogens from food or water.  The death records listed her as “married” which meant that her marriage to Fuller was not dissolved prior to her death. There is no evidence that George W. Fuller lived with her and their son after 1889.

From a 1910 census report, it is clear that Myron lived with his father in Summit, New Jersey.  One recorded connection we know of between Myron and his father was mentioned in the preface of Fuller’s 1912 book, Sewage Disposal. Fuller acknowledged Myron (who was 22 years old at the time) for creating the index to the book.  One source showed that Fuller and McClintock employed Myron from 1911 to 1916 and again from 1919 until at least 1922. In 1918, Myron registered for the draft and listed his occupation as civil engineer. The same reference showed Myron working for the City of Philadelphia in the Bureau of Surveys—the same occupation as his great-great-great-great grandfather, Ensign Thomas Fuller.  He lived in Philadelphia with his wife and one child.

While Fuller was in Louisville working on the filtration investigations, he met Caroline L. Goodloe who came from a fine, old Louisville family.  In November 1899, Fuller married her in Louisville. They were both 31 years old when they were married.  In May of 1900, husband and wife went on a trip to Europe—a somewhat delayed honeymoon. Their son, Kemp Goodloe Fuller, was born on March 10, 1901. On November 11, 1903, while living in New York City, their second son, Asa W. Fuller was born.

We know from records published in the annual report of the APHA and other sources that Fuller had his offices in New York City at 220 Broadway for many years beginning in 1899, which was the same address given by Allen Hazen for his offices for a short period of time.

Tragically, Caroline Goodloe Fuller died in June 21, 1907, while George W. Fuller was most heavily engaged in numerous water and sewage disposal projects all over the U.S.  At her death, George W. Fuller was living at 309 West 84th Street in New York City with his wife and their sons.  She was 38 years old.

The 1910 Census form showed that Fuller was living at 160 Boulevard, Summit, New Jersey with Alice C. Goodlow (sic) who was identified as his sister-in-law, Mary L. Goodlow (sic) identified as his mother-in-law and his three sons Myron, Kemp G. and Asa.  George’s in-laws had come up from Louisville to help him raise the boys.  Also listed at the same residence was an interesting guest, Grace F. Thomson, 43, born in China of English ancestry and claiming a trade of metal working.  In addition, there were three servants (two Irish and one Greek) making it a full and busy household.  The census form showed him as widowed, so by 1910 he had not remarried.

We know from several accounts, that George Warren Fuller was, in many ways, a big man.  Physically, he was tall.  An account by a colleague said that he was over six feet tall, but passport application forms that Fuller filled out showed that his height was 5 feet 10 inches. Pictures of him from 1903 until at least 1928 showed that he was, to use a descriptor from the time, stout. One description had him at 285 pounds with a size 18 collar.

His hair was dark brown and, in the style of the day, slicked down and parted in the middle.  As time marched on, he began to gray at the temples and then the gray seemed to take over his thinning head of hair.  He was clean-shaven except for his days in Louisville during the filtration studies, when he sported a bushy mustache.  He had blue eyes that could bore into someone who did not please him and twinkle when he was trying to charm a lady.  The round spectacles that he always wore did not detract from the intensity of his blue eyes.

Commentary: George Warren Fuller Comes to California…in 2012

On April 3 2012, I gave a talk at the California Nevada Section Conference of the American Water Works Association. I teamed up with John Marchand who gave a talk on Dr. John Snow of Broad Street Pump fame. We made a pact to give our talks in costume, which incredibly we both followed through on. Below are links to my talk broken up into three parts (YouTube restrictions). It describes Fuller’s life and the first use of chlorine on the Jersey City water supply in 1908.

Part 1:  http://youtu.be/37WZkp5148w

Part 2:  http://youtu.be/rsicrBvVMc4

Part 3:  http://youtu.be/n6PuOvjjQMI

July 12, 1868: Birth of Frank S. Wesbrook

0712 Frank F WesbrookJuly 12, 1868: Birth of Frank S. Wesbrook. In 1909, Frank F. Wesbrook was Professor of Pathology and Bacteriology at the University of Minnesota and Director of the State Board of Health Laboratories of Minnesota. He obtained a bachelors degree at the University of Manitoba in 1887 and several advanced degrees from the same institution in 1890 including that of doctor of medicine. In the 1890s, he spent several years at Cambridge University in England and at an academic institution in Marburg, Germany researching bacteriology topics especially those related to cholera. Along with George W. Fuller, he was an early member of the APHA committee developing standardized bacteriological methods in the early 1900s. He was recruited for the second trial of the Jersey City lawsuit by John L. Leal in Winnipeg in August 1908 at the APHA meeting. Of particular note, Dr. Wesbrook (often misspelled in various documents as Westbrook) was President of the APHA in 1905, the year preceding the presidency of Franklin C. Robinson. In years past, he had conducted studies on the quality of water supplies for many cities in Minnesota and Canada.

Reference: McGuire, Michael J. 2013. The Chlorine Revolution: Water Disinfection and the Fight to Save Lives. Denver, CO:American Water Works Association.

Born in Oakland, Ontario, Wesbrook received a Bachelor’s and Master’s degree from the University of Manitoba in 1887 and 1888. He received his M.D. and C.M. degrees from the University of Manitoba and McGill College. From 1891 to 1893, he was a Professor of Pathology at the University of Manitoba. From 1893 to 1895, he studied pathology at Cambridge University.

In 1895, he was appointed director of the Department of Pathology, Bacteriology and Hygiene at the University of Minnesota. His chief work was in Bacteriology relating to public health. He helped in diphtheria research and was in favor of chlorine sterilization of water. He was also a Director of the Minnesota Board of Health Laboratories and was a member of the Minnesota State Board of Health.

In 1906, he was appointed Dean of the University of Minnesota Medical School. In 1913, he was appointed the first president of the University of British Columbia. He served until his death in 1918.”

water, drinking water, public health, water history, Frank F. Wesbrook, The Chlorine Revolution, disinfection

July 9, 1977: Death of Harriette Chick

0106 Harriette ChickJuly 9, 1977: Death of Harriette Chick. “Dr. Dame Harriette Chick, DBE (6 January 1875 – 9 July 1977) was a notable British protein scientist and nutritionist. She developed the first relationship showing bacterial kill as a function of disinfectant concentration and contact time. Educated at Notting Hill & Ealing High School, She served as secretary of the League of Nations health section committee on the physiological bases of nutrition from 1934 to 1937. In 1941 she was a founding member of the Nutrition Society, of which she served as president from 1956 to 1959.

Chick and Charles James Martin discovered that the process of protein denaturation was distinct from protein coagulation (or flocculation), beginning the modern understanding of protein folding. She is known for having formulated Chick’s Law in 1908, giving the relationship between the kill efficiency of organisms and contact time with a disinfectant. Chick’s Law was later modified by Dr. H.E. Watson in 1908 to include the coefficient of specific lethality. The Chick-Watson Equation is still used today.

In 1915, she went to the Lister Institute in Elstree to test and bottle tetanus antitoxin for the army. Together with Dr. Elsie Dalyell, she led a team from the Lister Institute and the Medical Research Institute in 1922 to study the relation of nutrition to bone disease. They discovered the nutritional factor causing rickets, and proved that fat-soluble vitamins present in cod liver oil, or exposure to ultra violet light, could cure and prevent rickets in children. She worked at the Lister Institute for over fifty years, and isolated vitamin C in various other fruits and vegetables.”

Chick’s Law-Basis of Disinfectant validation and D value. “In 1908 a British scientist, Dr. Harriet Chick, described a method for estimating the destruction of microorganisms by chemical disinfectants (Chick 1908). She postulated that the microbial mortality would follow what in physical chemistry would be called ‘first-order kinetics’—that is, mortality vs time data plots as a straight line on a semi-logarithmic graph. In practice, her postulate was correct and the law works for all liquid disinfectants and for many sterilization processes (for example, Chick’s Law has evolved into what is now referred to as D-value in autoclave sterilization).

This simple ‘Law’ (actually an equation) was modified quickly to account for varying disinfectant concentrations, and the pH of the disinfectant solution and the modified equation is now commonly called the ‘Chick-Watson Law.’”

Reference: Chick, Harriette. (1908). “An Investigation of the Laws of Disinfection.” The Journal of Hygiene. 8:1 92-158.