- filter alum
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filter alum,a salt used to remove suspended sediment from natural waer; aluminum sulfate. Filter alum is a common water-purifying agent.
Useful english dictionary. 2012.
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Useful english dictionary. 2012.
Aluminium sulfate — Chembox new Name = Aluminium sulfate ImageFile = Aluminium sulfate.jpg ImageName = Aluminium sulfate hexadecahydrate IUPACName = Aluminium sulfate hexadecahydrate OtherNames = Cake alum Filter alum Papermaker s alum alunogenite Aluminum sulfate… … Wikipedia
aluminum sulfate — noun : a salt Al2(SO4)3 colorless when pure that crystallizes with 18 molecules of water (as in alunogen) but is commonly desiccated to about 14 H2O, that is usually made by treating bauxite with sulfuric acid, and that is used chiefly in… … Useful english dictionary
papermaking — [pā′pər māk΄iŋ] n. the making of paper papermaker n. * * * pa·per·mak·ing (pāʹpər mā kĭng) n. The process or craft of making paper. paʹper·mak er n. * * * Introduction formation of a matted or felted sheet, usually of cellulose fibres,… … Universalium
environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations … Universalium
Water purification — This article is about large scale, municipal water purification. For portable/emergency water purification, see portable water purification. For industrial water purification, see deionized water. For distilled water, see distilled water. Water… … Wikipedia
Sewage treatment — The objective of sewage treatment is to produce a disposable effluent without causing harm to the surrounding environment, and also prevent pollution.[1] Sewage treatment, or domestic wastewater treatment, is the process of removing contaminants… … Wikipedia
Industrial wastewater treatment — covers the mechanisms and processes used to treat waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re use.Most industries produce some wet waste… … Wikipedia
Paper — For other uses, see Paper (disambiguation). A stack of copy paper Paper is a thin material mainly used for wr … Wikipedia
Arsenic contamination of groundwater — is a natural occurring high concentration of arsenic in deeper levels of groundwater, which became a high profile problem in recent years due to the use of deep tubewells for water supply in the Ganges Delta, causing serious arsenic poisoning to… … Wikipedia
Activated alumina — is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 square metres/g. The compound is used as a desiccant (to keep things dry… … Wikipedia