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Ozonia
Ozonia is a multinational water treatment equipment manufacturer headquartered in Zürich, Switzerland. It operates under the company, Degrémont, which is a subsidiary of Suez Environnement, a French-based utility company which operates largely in the water treatment and waste management sectors. Ozonia specializes in manufacturing systems that deliver ozone, Ultraviolet, ultraviolet (UV) and Advanced oxidation process, advanced oxidation process (AOP) technologies in the municipal, industrial and leisure markets. History 1990 Degrémont and Air Liquide acquired ABB's (formerly BBC's) ozone department. This was the genesis of Ozonia. 1991 The Ozonia brand was officially launched at the International Ozone Association (IOA) Congress in Monaco. As a partnership between Degrémont and Air Liquide, Ozonia offices are opened in Zürich and in Paris. Also, Ozonia's first big installation (360 kg O3/h), a pulp and paper bleaching application, was installed for Union Camp Corporat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degrémont
Degrémont is a company specializing in the production of drinking water, and in the treatment of sewage and sludge. After starting as a family business in France in 1939, it has since become a subsidiary of Suez Environment, employing 4,600 people in 70 countries, and generating annual revenues of €1.520 billion (2010 figures). History Founded by Gilbert Degrémont in 1939 on the outskirts of Paris, as a follow-up of his father Emille Degrémont's water treatment company established 1904 at Le Cateau-Cambrésis, the Degrémont company soon entered the international market, with contracts in countries such as Egypt, Iran, Indonesia and Peru. In 1972, the company merged with SGEA to become Lyonnaise des Eaux, which later became part of the Suez Group. Today, it is a subsidiary of Suez Environment and has operations worldwide. Gilbert Degrémont’s grandfather, Adalbert, had already set up a mechanical engineering plant in the North of France in 1870, which was converted by his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Water Association
The International Water Association (IWA) is a self-governing nonprofit organization and knowledge hub for the water sector, connecting water professionals and company, companies to find solutions to the world's water challenges. It has Employment, permanent staff housed in its headquarters and global Secretariat (administrative office), secretariat in central London, the United Kingdom, to support the activities, and has a regional office in Chennai, India. The aim of the IWA is to function as an international network for water experts and promote standards and optimal approaches in sustainability, sustainable water management. Its membership is a global mosaic comprising 313 Technology company, technology companies, water and wastewater utilities, 54 university, universities, and wider stakeholders in the fields of water services, infrastructure engineering and consulting as well as 7,791 individuals including scientists and researchers, with 53 governing members (2021). IWA is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultrapure Water
Ultrapure water (UPW), high-purity water or highly purified water (HPW) is water that has been purified to uncommonly stringent specifications. Ultrapure water is a term commonly used in manufacturing to emphasize the fact that the water is treated to the highest levels of purity for all contaminant types, including organic and inorganic compounds, dissolved and particulate matter, and dissolved gases, as well as volatile and non-volatile compounds, reactive and inert compounds, and hydrophilic and hydrophobic compounds. UPW and the commonly used term deionized (DI) water are not the same. In addition to the fact that UPW has organic particles and dissolved gases removed, a typical UPW system has three stages: a pretreatment stage to produce purified water, a primary stage to further purify the water, and a polishing stage, the most expensive part of the treatment process.The polishing stage is a set of treatment steps and is usually a recirculation and distribution system, cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyanide
In chemistry, cyanide () is an inorganic chemical compound that contains a functional group. This group, known as the cyano group, consists of a carbon atom triple-bonded to a nitrogen atom. Ionic cyanides contain the cyanide anion . This anion is extremely poisonous. Soluble cyanide salts such as sodium cyanide (NaCN), potassium cyanide (KCN) and tetraethylammonium cyanide () are highly toxic. Covalent cyanides contain the group, and are usually called nitriles if the group is linked by a single covalent bond to carbon atom. For example, in acetonitrile , the cyanide group is bonded to methyl . In tetracyanomethane , four cyano groups are bonded to carbon. Although nitriles generally do not release cyanide ions, the cyanohydrins do and are thus toxic. The cyano group may be covalently bonded to atoms different than carbon, e.g., in cyanogen azide , phosphorus tricyanide and trimethylsilyl cyanide . Hydrogen cyanide, or , is a highly volatile toxic liquid tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cooling Towers
A cooling tower is a device that rejects waste heat to the atmosphere through the cooling of a coolant stream, usually a water stream, to a lower temperature. Cooling towers may either use the evaporation of water to remove heat and cool the working fluid to near the wet-bulb air temperature or, in the case of ''dry cooling towers'', rely solely on air to cool the working fluid to near the dry-bulb air temperature using radiators. Common applications include cooling the circulating water used in oil refineries, petrochemical and other chemical plants, thermal power stations, nuclear power stations and HVAC systems for cooling buildings. The classification is based on the type of air induction into the tower: the main types of cooling towers are natural draft and induced draft cooling towers. Cooling towers vary in size from small roof-top units to very large hyperboloid structures that can be up to tall and in diameter, or rectangular structures that can be o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballast Water
Ballast is weight placed low in ships to lower their centre of gravity, which increases stability (more technically, to provide a righting moment (physics), moment to resist any Heeling (sailing), heeling moment on the Hull (watercraft), hull). Insufficiently ballasted boats tend to tip or heel excessively in high winds. Too much heel may result in the vessel filling with water and/or Capsize, capsizing. If a sailing vessel needs to voyage without cargo, then ballast of little or no value will be loaded to keep the vessel upright. Some or all of this ballast will then be discarded when the cargo is loaded. If a cargo vessel (such as a tanker, bulk carrier or container ship) wishes to travel empty or partially empty to collect cargo, it must travel "in ballast". This keeps the vessel in trim and keeps the propeller and rudder submerged. Typically, being "in ballast" will mean flooding ballast tanks with sea water. Ballast water discharge and the environment, Serious problems m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Disinfection
Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water. The goal is to produce water that is fit for specific purposes. Most water is purified and disinfected for human consumption (drinking water), but water purification may also be carried out for a variety of other purposes, including medical, pharmacological, chemical, and industrial applications. The history of water purification includes a wide variety of methods. The methods used include physical processes such as filtration, sedimentation, and distillation; biological processes such as slow sand filters or biologically active carbon; chemical processes such as flocculation and chlorination; and the use of electromagnetic radiation such as ultraviolet light. Water purification can reduce the concentration of particulate matter including suspended particles, parasites, bacteria, algae, viruses, and fungi as well as reduce the concentration o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drinking Water
Drinking water or potable water is water that is safe for ingestion, either when drunk directly in liquid form or consumed indirectly through food preparation. It is often (but not always) supplied through taps, in which case it is also called tap water. The amount of drinking water required to maintain good health varies, and depends on physical activity level, age, health-related issues, and environmental conditions. This 2004 article focuses on the USA context and uses data collected from the US military. For those who work in a hot climate, up to a day may be required. About 1 to 2 billion people lack safe drinking water. Water can carry vectors of disease and is a major cause of death and illness worldwide. Developing countries are most affected by unsafe drinking water. Sources Potable water is available in almost all populated areas of the world, although it may be expensive, and the supply may not always be sustainable. Sources where drinking water is commo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wuqing District
Wuqing District () is a district of Tianjin, bordering Hebei province to the north and west, Beijing Municipality to the northwest, Baodi District to the northeast, and Beichen District and Xiqing District to the southeast/south. Administrative divisions There are 6 subdistricts, 19 towns A town is a type of a human settlement, generally larger than a village but smaller than a city. The criteria for distinguishing a town vary globally, often depending on factors such as population size, economic character, administrative stat ..., and 5 townships in the district: Climate References Districts of Tianjin {{Tianjin-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tianjin
Tianjin is a direct-administered municipality in North China, northern China on the shore of the Bohai Sea. It is one of the National Central City, nine national central cities, with a total population of 13,866,009 inhabitants at the time of the 2020 Chinese census. Its metropolitan area, which is made up of 12 central districts (other than Baodi District, Baodi, Jizhou District, Tianjin, Jizhou, Jinghai District, Jinghai and Ninghe District, Ninghe), was home to 11,165,706 inhabitants and is also the world's 29th-largest agglomeration (between Chengdu and Rio de Janeiro) and 11th-List of cities proper by population, most populous city proper. Tianjin is governed as one of the four municipalities (alongside Beijing, Shanghai, and Chongqing) under the direct-administered municipalities of China, direct administration of the State Council of the People's Republic of China, State Council of Government of China, China. The city borders Hebei Province and Beijing Municipality, bounded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micropollutant
Micropollutants are substances that even at very low concentrations have adverse effects on different environmental matrices. They are an inhomogeneous group of atroprogenic chemical compounds that is discharged by human to the environment. Commonly known micropollutants that might pose possible threats to ecological environments are, to name just a few: * environmental persistent pharmaceutical pollutants and personal care products, * pesticides, * stimulants, * persistent organic pollutants, * and artificial sweeteners To date, most of the scientists have identified wastewater treatment plants as the main source of micropollutants to aquatic ecosystems and/or adversely affect the extraction of potable water from raw water. Due to in many places Bank filtration, drinking water is also extracted from surface waters, or the substances also reach the groundwater via the water, they are also found in raw water and must be laboriously removed by drinking water treatment. In addition, som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
