Chlorine can be generated through the electrolysis of salt (sodium chloride) in an electrolytic cell. During electrolysis, an electric current causes salt to break down into sodium hydroxide, chlorine gas, and hydrogen gas. The chlorine gas then forms hypochlorous acid, the active sanitizer, while the other byproducts are either beneficial or reformed through subsequent reactions. Saltwater pools use an electrolytic cell to continuously produce hypochlorous acid from salt to sanitize the water, making salt pools effectively chlorine pools. Regular maintenance and pH adjustment are required for the salt cell to function properly.
Manufacturing nitric acid by ostwald processrita martin
Nitric acid is a colourless liquid most commonly manufactured by Ostwald process which converts ammonia to nitric acid, nitric acid used for fertilizers, dye intermediates, explosives
Manufacturing nitric acid by ostwald processrita martin
Nitric acid is a colourless liquid most commonly manufactured by Ostwald process which converts ammonia to nitric acid, nitric acid used for fertilizers, dye intermediates, explosives
Chlorination is the process of adding the element chlorine to water as a method of water purification to make it fit for human consumption as drinking water.
Nitric acid Preparation & Uses
CHILE SALTPETRE METHOD (By NaNO3/KNO3)
BRIKLAND EYDE’S METHOD BY USING AIR
Raw material:
Basis: Nitric acid (95% yields), Sodium Nitrate, Sulfuric acid
Process
The decomposition of sodium nitrate (Chili saltpetre) still remains one of the most important processes for the manufacture of nitric acid. The complete reaction shown by the equation 2NaNO3 + H2SO4 = Na2SO4 + 2HNO3at a relatively low temperature (200° C.), The plant consists of
a retort,
condenser,
receiver, and
absorbing system for the oxides of nitrogen.
OSTWALD ’S METHOD BY AMMONIA SOLVEY PROCESS
OXIDATION [PHARMACEUTICAL PROCESS CHEMISTRY]Shikha Popali
INTRODUCTION TO OXIDATION , WHICH IS PROCESS OF ADDITION OF OXYGEN TO THE COMPOUND IN RPOCESS CHEMISTRY AND LIQUID PHASE OXIDATION AND OTHER OXIDISING AGENTS ARE DISCUSSED.
02 Characterization and Primary Treatment of Sewageakashpadole
The presentation has prepared as per the syllabus of Mumbai University.
Go through the presentation, if you like it then share it with your friends and classmates.
Thank you :)
disinfection, method of disinfection, form in which chlorine can be applied, requirement of good disinfectant , chlorine chemistry, effect of ph , temperature , contact time in chlorination, germicidal efficiency of chlorine, by products during chlorination.
Chlorination is the process of adding the element chlorine to water as a method of water purification to make it fit for human consumption as drinking water.
Nitric acid Preparation & Uses
CHILE SALTPETRE METHOD (By NaNO3/KNO3)
BRIKLAND EYDE’S METHOD BY USING AIR
Raw material:
Basis: Nitric acid (95% yields), Sodium Nitrate, Sulfuric acid
Process
The decomposition of sodium nitrate (Chili saltpetre) still remains one of the most important processes for the manufacture of nitric acid. The complete reaction shown by the equation 2NaNO3 + H2SO4 = Na2SO4 + 2HNO3at a relatively low temperature (200° C.), The plant consists of
a retort,
condenser,
receiver, and
absorbing system for the oxides of nitrogen.
OSTWALD ’S METHOD BY AMMONIA SOLVEY PROCESS
OXIDATION [PHARMACEUTICAL PROCESS CHEMISTRY]Shikha Popali
INTRODUCTION TO OXIDATION , WHICH IS PROCESS OF ADDITION OF OXYGEN TO THE COMPOUND IN RPOCESS CHEMISTRY AND LIQUID PHASE OXIDATION AND OTHER OXIDISING AGENTS ARE DISCUSSED.
02 Characterization and Primary Treatment of Sewageakashpadole
The presentation has prepared as per the syllabus of Mumbai University.
Go through the presentation, if you like it then share it with your friends and classmates.
Thank you :)
disinfection, method of disinfection, form in which chlorine can be applied, requirement of good disinfectant , chlorine chemistry, effect of ph , temperature , contact time in chlorination, germicidal efficiency of chlorine, by products during chlorination.
07 Treatment of water- Disinfection and Advanced and Miscellaneous treatmentsakashpadole
The presentation has prepared as per the syllabus of Mumbai University.
Go through the presentation, if you like it then share it with your friends and classmates.
Thank you :)
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Wastewater Treatment for Sugar Industry Hülya Pala
I decided to share my another presentation about wastewater treatment which is especially about sugar industry to be beneficial for you.( The link for slide 5: https://www.youtube.com/watch?v=EP_fgp7zYKk)
Astral Pool chlorinator is also known as salt water chlorinator. The chlorination of swimming pools and hot tubs using dissolved salt (1000–36,000 ppm or 1–36 g/L) is known as salt water chlorination. The chlorine generator (also known as a salt cell, salt generator, salt chlorinator, or SWG) produces chlorine gas or its dissolved forms, hypochlorous acid and sodium hypochlorite, which are already frequently used as pool sanitizers, using electrolysis in the presence of dissolved salt. As a byproduct, hydrogen is also created.
STERILIZATION OF WATER USING BLEACHING POWDER PPTX..pptxDivyamMittal11
hey everyone ! here is new pptx of "sterilization of water using bleaching powder". CERTIFICATE OF AUTHENTICITY This is to certify that Anshul Kumar Pandey, a student of class XII has successfully completed the research project on the topic "Sterilization of Water by using Bleaching Powder" under the guidance of Mrs. Mohini Belani (Subject Teacher). This project is absolutely genuine and does not indulge in plagiarism of any kind. The references taken in making this project have been declared at the end of this report. Signature ( Subject Teacher) Signature ( Examiner) ACKNOWLEDGEMENT I feel proud to present my Investigatory project in Chemistry on the topic "Sterilization of Water using Bleaching powder" which aims at using Bleaching powder as a disinfectant and purifier to make water fit for drinking. This project wouldn't have been feasible without the proper and rigorous guidance of my Chemistry teacher Mrs. Mohini Belani who guided me throughout this project in every possible way. An investigatory project involves various difficult lab experiments which have to be carried out by the student to obtain the observations and conclude the report on a meaningful note. These experiments are very critical and in the case of failure, may result in disastrous consequences. Thereby, I would like to thank both Mrs.Belani and Lab Asst.Mr.Rajkumar for guiding me on a step by step basis and ensuring that I completed all my experiments with ease. Rigorous hard work has been put in this project to ensure that it proves to be the best. I hope that this project will prove to be a breeding ground for the next generation of students and will guide them in every possible way. Need of water Water is an important and essential ingredient in our quest for survival on this planet. It is very essential for carrying out various metabolic processes in our body and also to carry out Hemoglobin throughout the body. A daily average of 1 gallon per man is sufficient for drinking and cooking purposes. A horse, bullock, or mule drinks about 11 gallons at a time. standing up, an average allowance of 5 gallons should be given for a man, and 10 gallons for a horse or a camel. An elephant drinks 25 gallons, each mule or ox drinks 6 to 8 gallons, each sheep or pig 6 to 8 pints. These are minimum quantities. One cubic foot of water = 6 gallons (a gallon = 10 lbs.). In order to fulfill such a huge demand of water, it needs to be purified and supplied in a orderly and systematic way. But with the increasing world population, the demand for drinking water has also increased dramatically and therefore it is very essential to identify resources of water from which we can use water for drinking purposes. Many available resources of water do not have it in drinkable form. Either the water contains excess of Calcium or Magnesium salts or any other organic impurity or it simply contains foreign paruen
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
2. REVIEW
➤ Chlorine is effective as both a sanitizer and an oxidizer. However, these two functions
are distinct.
➤ Sanitation is defined as the process by which organisms are destroyed. In pools, this
generally refers to killing bacteria and other microorganisms.
➤ Oxidation is defined as the process by which contaminants are chemically changed (broken
down) and removed from the system.
➤ All pools require continuous sanitation and routine oxidation. Regardless of
sanitizer choice, there must always be sanitizer present to prevent the spread of
waterborne illnesses. Oxidation should be performed on a regular and as-needed basis
to reduce contaminant load in the system.
➤ Only products registered with the EPA are appropriate for use as sanitizers and
oxidizers. BioGuard® products are EPA-registered for use in swimming pools and
spas.
➤ Remember that the primary sanitizer/oxidizer for chlorine is hypochlorous acid
(HOCl).
3. CHLORINE GENERATION
➤ Hypochlorous acid can be produced through the electrolysis of salt (sodium chloride
or NaCl). Electrolysis is a technique used to drive chemical reactions through the
application of an electric current.
2H20 + 2NACL(AQ) CL2- (G) + H2(G) +2NAOH
➤ In the above reaction, sodium chloride is dissolved into water. When a current is applied,
the aqueous sodium chloride reacts with water to produce chlorine gas, hydrogen gas, and
sodium hydroxide (NaOH). The chlorine gas will immediately react with water to
produce hypochlorous acid and hydrochloric acid, the latter of which will react with
sodium hydroxide to form salt (NaCl) and water.
CL2- (G) + H2O HOCL(AQ) + HCL(AQ)
HCL + NAOH NACL(AQ) + H2O
4. CHLORINE GENERATION
➤ The final byproducts of chlorine generation:
➤ Hypochlorous acid (the desired byproduct)
➤ Hydrogen gas (will gas off with proper ventilation)
➤ Sodium hydroxide (will raise pH of water)
➤ While not technically a “byproduct,” salt is eventually
“reintroduced” through chemical reactions; it is not consumed
during the process of electrolysis.
➤ While some of the sodium hydroxide will react with
hydrochloric acid to produce salt and water, there will still be
excess sodium hydroxide in the water, causing the pH to drift
up over time.
5. SALT IS CHLORINE!
➤ As shown through the
balanced equations, the
eventual desired byproduct of
electrolysis of salt in pools is
hypochlorous acid, i.e.
chlorine. Therefore, salt pools
are chlorine pools.
➤ What sets saltwater pools
apart is the way they acquire
chlorine: the system produces
its own chlorine with the
electrolytic cell.
6. ELECTROLYTIC CELL
➤ The electrolytic cell (salt cell) is a piece of pool equipment
composed of many plates—usually made of coated titanium—
through which a direct current is passed. As water flows
through the cell, the chemical reactions detailed previously
will occur.
➤ The environment inside of the cell is high-chlorine, high-pH.
Scale formation is very likely to occur inside of the salt cell,
reducing its efficiency. Cleanings should be performed
annually with an approved cell cleaning solution.
➤ Due to the high chlorine content produced inside the cell, the
salt cell should always be the last installed piece of
equipment and several feet away from any installed heater(s).
7. ELECTROLYTIC CELL
➤ Salt cells are generally programmed to operate for a specific
amount of time in a 24-day period, oftentimes expressed as a
percentage. A cell set to 60%, for example, will run for
approximately 14 hours.
➤ Cell operation times will vary based on gallonage, pool usage, and
the amount of stress placed on the swimming pool environment
by microorganisms and contaminants.
➤ Frequent testing and adjustment of pH are necessary to offset the
increase in pH as a result of the electrolytic process inside the cell.
➤ Because the chlorine produced by the salt cell is unstabilized, the
use of a stabilizer in outdoor pools is recommended to prevent the
breakdown of chlorine due to sunlight.