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Laser granulometer as an useful tool for selection of appropriate membranes used in the MIEX®DOC-UF/MF hybrid process
PublikacjaIn the study, particle size distribution of the MIEX® resin was presented. Such analyses enable to determinate whether presence of fine resin fraction may be the reason for unfavorable membrane blocking during water purification by the hybrid MIEX®DOC-microfiltration/ultrafiltration systems. Granulometric analysis of resin grains using the laser diffraction particle size analyzer (laser granulometer) was carried out as well as...
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Sizes of iron hydroxide particles formed during ferric coagulation processes
PublikacjaThe aim of the study was to apply laser granulometer for measuring sizes of particles formed in iron-based coagulation process in water, which did not contain significant amounts of organic compounds. The research was conducted using tap water, obtained from underground sources. Iron sulfate in doses of 2.0–10.0 mgFe L–1 was added to water. During initial stage of flocculation, iron hydroxide particles reached dimensions between...
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Investigation of MIEX® resin sedimentation in the aspect of particle sizes remaining in the supernatant
PublikacjaThe aim of the study was to evaluate the effectiveness of the MIEX® resin sedimentation process, both new and repeatedly used in hybrid water treatment MIEX®DOC + microfiltration (MF) or ultrafiltration (UF) processes (repeatedly regenerated). The tests consisted of performing 1 h sedimentation of the suspension resin in nonflow conditions and analysis of supernatant water at different process durations. The suspension weight analysis...
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Wielkość cząstek wodorotlenku żelaza powstającego w procesie koagulacji koagulantami żelazowymi
PublikacjaCelem pracy było wykorzystanie granulometru laserowego do pomiaru wielkości cząstek powstających w procesie koagulacji z zastosowaniem koagulantów żelazowych w wodzie niezawierającej znacznych ilości substancji organicznych. Badania przeprowadzono z wykorzystaniem wody wodociągowej pochodzącej z ujęć podziemnych. Do wody dozowano koagulant żelazowy PIX112 (siarczan żelaza(III) – Fe2(SO4)3) w dawkach o 2,0 do 10 mg Fe/dm3. Już w...