Lecture 5 Filtration
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Web Programming in Python with Django!
sipb.mit.eduApp Layer: Outputs HTML (controls how data is displayed to the user) MVC Layer 1. Model: Models contains classes definitions for holding data 2. View: The View controls the access and filtration of data in order to be passed onto the app layer for display. 3. Controller: The Controller receives and manages inputs to update the Model layer. Additionally, it also updates the …
6. Water treatment - World Health Organization
www.who.intfollowed by filtration and settlement. Fluoride High concentrations of fluoride (above 1.5 mg/l, the WHO guideline value) can dam-age bones and teeth. Low-cost treatment methods include the Nalgonda system (which uses lime to soften the water), and using alum as a coagulant. With either treatment, the
Wastewater treatment and disposal - domestic systems
www.water.wa.gov.aubiological film filtration, followed by irrigation or subsoil disposal (Figure 2). For more detailed online information, see the Department of Health’s information sheet Aerobic treatment units (reference 4b ) • Split treatment systems involve composting toilets (non-flush) and greywater management systems.
AP-42, CH 8.11: Chlor-Alkali - United States Environmental ...
www3.epa.govprecipitation and filtration to remove impurities. Heat is applied and more salt is added. Then the nearly saturated, purified brine is heated again before direct electric current is applied. The anode is separated from the cathode by a permeable asbestos-based diaphragm to prevent the caustic soda from reacting with the chlorine.