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Statements

Subject Item
n2:RIV%2F60461373%3A22320%2F13%3A43895359%21RIV14-MSM-22320___
rdf:type
skos:Concept n12:Vysledek
dcterms:description
Use of reverse osmosis for treatment of water with high scaling potential was investigated in this study. Treated water comes from a disposal site of ash and desulfurization products and its saturation index of calcium sulfate dihydrate (gypsum) 0.94. Among other components of the leachate are other dissolved solids (800 mg/L) with significant content of iron ions (2.7 mg/L). A series of experiments were performed to study the gypsum bulk crystallization in the presence of antiscalant and iron ions followed by pilot plant testing at the locality with raw leachate and leachate pretreated by coagulation/flocculation to investigate membrane scaling. The results showed that the presence of iron ions significantly reduced the induction time of gypsum crystallization, thereby reducing antiscalant effectiveness for its crystallization suppression. Severe membrane scaling confirmed by permeate flux measurement and pressure drop measurement was found, when raw leachate was treated. Removal of most of iron by pretreatment caused that no undesirable precipitation of solution components and an abrupt decrease in permeate flux was detected during separation process. Average rejection of total dissolved solids was 99.5% in this case. Produced permeate could be reuse as source water for the power plant, thus 80% of wastewater could be recycled by means of reverse osmosis. Use of reverse osmosis for treatment of water with high scaling potential was investigated in this study. Treated water comes from a disposal site of ash and desulfurization products and its saturation index of calcium sulfate dihydrate (gypsum) 0.94. Among other components of the leachate are other dissolved solids (800 mg/L) with significant content of iron ions (2.7 mg/L). A series of experiments were performed to study the gypsum bulk crystallization in the presence of antiscalant and iron ions followed by pilot plant testing at the locality with raw leachate and leachate pretreated by coagulation/flocculation to investigate membrane scaling. The results showed that the presence of iron ions significantly reduced the induction time of gypsum crystallization, thereby reducing antiscalant effectiveness for its crystallization suppression. Severe membrane scaling confirmed by permeate flux measurement and pressure drop measurement was found, when raw leachate was treated. Removal of most of iron by pretreatment caused that no undesirable precipitation of solution components and an abrupt decrease in permeate flux was detected during separation process. Average rejection of total dissolved solids was 99.5% in this case. Produced permeate could be reuse as source water for the power plant, thus 80% of wastewater could be recycled by means of reverse osmosis.
dcterms:title
Using reverse osmosis technology for recycling wastewater from a coal-fired power plant Using reverse osmosis technology for recycling wastewater from a coal-fired power plant
skos:prefLabel
Using reverse osmosis technology for recycling wastewater from a coal-fired power plant Using reverse osmosis technology for recycling wastewater from a coal-fired power plant
skos:notation
RIV/60461373:22320/13:43895359!RIV14-MSM-22320___
n12:predkladatel
n19:orjk%3A22320
n3:aktivita
n14:Z
n3:aktivity
Z(MSM6046137308)
n3:cisloPeriodika
51
n3:dodaniDat
n10:2014
n3:domaciTvurceVysledku
n8:6674186 n8:3830004 n8:6179223 n8:9411259 n8:2632748 n8:4337239 n8:9111832 n8:8036098 n8:5545250
n3:druhVysledku
n4:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
113164
n3:idVysledku
RIV/60461373:22320/13:43895359
n3:jazykVysledku
n9:eng
n3:klicovaSlova
Antiscalant; Induction time; Calcium sulfate; Reverse osmosis
n3:klicoveSlovo
n5:Reverse%20osmosis n5:Induction%20time n5:Antiscalant n5:Calcium%20sulfate
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[DAF5590BFA10]
n3:nazevZdroje
Desalination and Water Treatment
n3:obor
n20:DJ
n3:pocetDomacichTvurcuVysledku
9
n3:pocetTvurcuVysledku
9
n3:rokUplatneniVysledku
n10:2013
n3:svazekPeriodika
2013
n3:tvurceVysledku
Šír, Marek Bystrianský, Martin Kuraš, Mečislav Kubal, Martin Honzajková, Zuzana Vurm, Radek Podhola, Martin Patočka, Tomáš Kocurek, Pavel
n3:zamer
n15:MSM6046137308
s:issn
1944-3994
s:numberOfPages
5
n16:doi
10.1080/19443994.2012.714858
n18:organizacniJednotka
22320