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Particles finer than 0.1 μm (10 −7 m) in water remain continuously in motion due to electrostatic charge (often negative) which causes them to repel each other. [citation needed] Once their electrostatic charge is neutralized by the use of a coagulant chemical, the finer particles start to collide and agglomerate (collect together) under the influence of Van der Waals forces.
Finings’ actions may be broadly categorized as either electrostatic, adsorbent, ionic, or enzymatic.. The electrostatic types comprise the vast majority; including all but activated carbon, fining yeast, PVPP, copper sulfate, pectinase and pectolase.
The film won the Golden Lion at the 68th Venice International Film Festival. [4] Fairytale.Is: Сказка. Есть: Konstantin Statskiy, Elizaveta Solomina, Aleksandr Barshak: Elizaveta Boyarskaya Maksim Matveyev Mikhail Porechenkov Konstantin Khabensky: Fairytale Five Brides: Пять невест: Karen Oganesyan: Elizaveta Boyarskaya ...
A variety of salts may be added to adjust the pH and act as clarifying agents, depending on the water chemistry. These include sodium hydroxide , calcium hydroxide , aluminum sulfate , aluminum oxide , ferric sulfate , ferric chloride , sodium aluminate , with flocculant aids polyaluminum chloride , polyferric chloride . [ 17 ]
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They are thus often used as thickeners, emulsifiers, conditioners, clarifying agents, and even drag reducers. They are used in water treatment and for oil recovery. Many soaps, shampoos, and cosmetics incorporate polyelectrolytes. Furthermore, they are added to many foods and to concrete mixtures (superplasticizer).
Director/actor Feodor Bondarchuk at the set of The Inhabited Island, the most expensive Russian sci-fi film at the time. Bondarchuk also directed the highest-grossing Russian sci-fi film, Attraction. Production of science fiction and fantasy films in modern Russia dropped in comparison to Soviet cinema, due to high costs of visual effects.
Before the water enters the clarifier, coagulation and flocculation reagents, such as polyelectrolytes and ferric sulfate, [4] can be added. These reagents cause finely suspended particles to clump together and form larger and denser particles, called flocs, that settle more quickly and stably.