gas chlorinator Articles
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pH and ORP sensors as used for process control in bleaching operations at pulp mills - Case Study
Specially Engineering Dissolved Chlorine Gas Resistant Solid State Reference Flat, yet rugged break resistant glass minimize cleaning requirements Application specific engineered thermoplastics and conductive polymer materials of construction lead to optimized sensor lifetime and accuracy The Problem A pulp and paper producer wanted to improve their control and reduce their maintenance ...
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J555 gasless disinfection
Detailed design, works manufacture and site installation of Sodium Hypochlorite dosing systems for conversion of 6 sites from Chlorine gas to liquid Sodium Hypochlorite Client: MWH Area: Hertfordshire WES Ltd were involved from early on in the project design stage in developing new Sodium Hypochlorite and Sodium Bisulphite dosing systems for Three Valleys Water. There were health and safety ...
By WES Limited
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Chlorine Dioxide Gas Decontamination of Exhaust HEPA Filter Units
Abstract The Mini Chlorine Dioxide System (MCS) utilizing Chlorine Dioxide Gas (CD) is a more efficient and safer method of decontaminating Exhaust HEPA Filter Units. In the past, the Formaldehyde method was cumbersome , time consuming and frequently ineffective. With formaldehyde, a human suspect carcinogen, one would possibly have to build enclosures and/or use booster fans, as well as wait for ...
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Virginia Water Treatment Plant Remains in Compliance and Improves Safety After Foreign Supplier Abruptly Ends Service - Case Study
Plant Converts to EPA-Approved Sodium Chlorite solution to Generate Chlorine Dioxide for Treatment of 2 to 3 MGD Situation This Mid-Atlantic water plant’s treatment system used gaseous chlorine and dry sodium chlorite to form chlorine dioxide. Chlorine dioxide is fed to the raw water and used to reduce TOC, iron and manganese, TTHM and HHA5 at this facility. Due to the storage and ...
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Chlorine Dioxide gas detection: A comprehensive guide
Introduction Some years agoago, the bleaching process in the paper industry was changed from using Chlorine (Cl2) as bleaching agent to Chlorine dioxide (ClO2). This was a challenge forThis posed a major challenge to industrial hygienists, as there were no sensors or detectors available that were specific to Chlorine dioxide: There was no sensor technology for gas detectors available that would ...
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How to care for your water tank
Caring for your water tank not only makes it last longer, it keeps the water safe for you and your family. Follow our care tips and you will always be able to rely on your tank. Inspect the tank every 3 months Inspecting your tank helps you identify leaks and damage. Repairing these early goes a long way to keeping your water tank safe. Other things you should look for include: Guttering ...
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Chlorine Dioxide Gas Decontamination of Pall Filter Arrays from BSL-3/BSL-4 Containment Facility
Abstract An alternate method of decontaminating high-containment infectious disease laboratory vent line filter arrays for servicing purposes was evaluated. Current method of live steam decontamination requires constant pressure monitoring/adjustments, a double exposure, cool-down between steaming, and double disassembly/re-assembly of filter arrays in order to place and retrieve biological ...
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What are the actual differences of COVID Certified Disinfectants?
Hello Again. During my 15 plus years in the disinfection business, I have made detailed studies of the different ingredients of disinfection products. I researched their properties, claims, limitations, and effectiveness, to properly understand how a particular disinfectant kills germs, viruses, and pathogens. I could sell any disinfectant that I wanted to, it was a choice many times between ...
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Pennsylvania Water Utility Converts to Chlorine Dioxide - Case Study
Trial achieved reduced THMs, easier maintenance, and better water qualitySituation The central water treatment department saw a need to improve their trihalomethane (THM) levels, which are a byproduct of the disinfection process using chlorine. An engineering firm was hired to evaluate the use of chlorine dioxide, and International Dioxcide was chosen to execute a trial. The project approach was ...
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Top 6 Most Common Gas Sensors & Detectors
1) Semiconductor gas sensor It is made by using the principle that the electrical conductivity of some metal oxide semiconductor materials changes with the composition of the ambient gas at a certain temperature. Semiconductor gas sensor can be effectively used for: methane, ethane, propane, butane, alcohol, formaldehyde, carbon monoxide, carbon dioxide, ethylene, acetylene, vinyl chloride, ...
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Fluidized bed scrubber: operating principle and applications
There is an opinion that modern fluidized bed scrubbers replace venturi/packed scrubber systems because they allow solving fouling problems, increasing capacity, adding particulate removal capability, and controlling environmental conditions. The thing is that fluidized bed scrubber systems demonstrate efficient removal of PM10 and PM2.5 particulate resulting in high-efficiency gas absorption. ...
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Cleaning mold containing surfaces
Once a determination is made that a moldy surface can be cleaned instead of removed or demolished, what cleaning agents are effective in removing or killing the mold? Many factors influence the selection of a cleaning agent. 1). The type of surface to be cleaned: Is it porous? Hard such as cement or sheetrock? Soft, such as cloth, fabric or wallpaper? Absorbent and thick such as rugs, carpet, ...
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Mold Control Information Series – Article #5
Cleaning Mold-Containing Surfaces Once a determination is made that a moldy surface can be cleaned instead of removed or demolished, what cleaning agents are effective in removing or killing the mold? Many factors influence the selection of a cleaning agent, such as: 1) The type of surface to be cleaned. Is it hard such as cement or sheetrock? Soft, such as cloth, fabric or wallpaper? ...
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Persistent Drought Challenges Fracking
Feature Article CleantechIQ.com - Executive Commentary Freshwater has historically been the base fluid essential for fracking, sweeping, and oil sands recovery because it has been abundant and readily available, and because of its low cost. Unfortunately, all of that is now changing due to a longer than expected global drought, and the industry is examining new options and technologies to find ...
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Hospital Wastewater Treatment Process
1. The characteristics of hospital sewage Hospital waste water contains some special pollutants, such as drugs, disinfectants, diagnostic agents, detergents, and a large number of pathogenic microorganisms, parasite eggs and various viruses (such as roundworm eggs, hepatitis virus, tuberculosis and dysentery) . In addition, there are radioactive substances such as radium 226, phosphorus, gold ...
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The chemical aspect of NOx scrubbing, pollution engineering
With the passage of the 1990 Clean Air Act Amendments, many chemical and metal industries and utility producers will now be required to further limit the amount of NOx (Nitrogen Oxides) produced. NOx is a precursor to ozone in the atmosphere, and is believed to be a major contributor to acidic deposition (acid rain). Formation of ozone: NOx is produced in a variety of different processes, ...
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Taming taste and odor (T & O) problems in a water treatment plant
Taming Taste & Odor (T&O) Problems Some taste and odors are caused by mineral constituents in the water, e.g. excess chlorine and hydrogen sulfide. However the majority of taste and odor are the result of biologic activity. Spring turnover of lakes and algal blooms are responsible for Blue-green algae (Cyanobacterium), Green algae and diatoms that introduce filter clogging organisms that ...
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