coagulant


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coagulant

[kō′ag·yə·lənt]
(chemistry)
An agent that causes coagulation.
References in periodicals archive ?
The six venoms studied induced lethal, hemorrhagic, defibrinogenating and in vitro coagulant activities, as previously described (Segura et al.
The choice of coagulants and coagulant dosage depends on raw water quality, which varies from one reservoir to another, on the occurrence of rains or alga blooms.
Because Moringa seed extracts consist of large amounts of polar amino acids with positive and negative charges, the rupture caused by the effect of salt allows the existence in the molecule with a larger number of radical groups, which in turn promotes the formation of chemical bridges and the adsorption between the coagulant and colloidal substances, allowing brine solutions to be more effective in the coagulation process.
Considering problems related to the use of ferric chloride, using PAC as a coagulant to remove turbidity, total coliform and TOC, is a better option in comparison with ferric chloride in the process of coagulation (Shahmansouri and Neshat, 2011).
Use of tannin seeds were tested in water treatment in Valonia, Turkey as a coagulant and auxiliary coagulant.
AlCl3 was found best coagulant for TSS removal 278 to 6 mg/L , in blended form AlCl3+alum , show similar results but alum + FeCl3 showed excellent results.
The effect of coagulant dosage, contact time and temperature on colour removal was studied by coagulation of T.
Efficiency of process with no coagulant in primary settler and with addition of alum or natural coagulant from common bean seed will be evaluated.
Alternative methods for de-fatting the seeds by pressing the seeds mechanically to remove edible oil and using the residues (husks), which are rich in coagulant proteins for preparation of seed powder for water coagulation has been recommended by many researchers based on Moringa seeds as natural coagulant.
The chemical properties and the physical properties for alum and ferric chloride coagulants used for the coagulation process are tabulated in Table 2 and the physical properties of the polyacrylamide coagulant aid used in the flocculation process is also tabulated in Table 2.
For instance, pre-ozonated water is mixed with a coagulant in the flocculators to aid the production of large flocs, which are floated more easily in the subsequent CoCoDAFF process.