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| Content Provider | Springer Nature Link |
|---|---|
| Author | Al Zoubi, Habis S. Al Thyabat, Salah S. |
| Copyright Year | 2012 |
| Abstract | Approximately 10,000 m³/day of untreated wastewater is produced during phosphate beneficiation at Eshydia phosphate mine in southern Jordan. The effluent contains 21 wt% phosphates (P$_{2}$O$_{5}$) and 12–14 wt% solids. Dissolved air flotation (DAF) and subsequent nanofiltration (NF) were investigated as potential treatment methods. DAF combined with the use of a commercial flocculant effectively removed the suspended solids and decreased total dissolved solids (TDS) by 50 %; NF effectively treated the DAF effluent and produced water with only 860 ppm TDS. The treated water can be recycled for use by Eshydia phosphate mine or for irrigation.Bei der Phosphataufbereitung im Eshydia Phosphatbergwerk im Süden Jordaniens fallen täglich ca. 10.000 m³ unbehandeltes Abwasser an. Die Abwässer enthalten jeweils einen Massenanteil von 21 % Phosphat (P$_{2}$O$_{5}$) und 12–14 % Feststoffe. Flotation und anschließende Nanofiltration wurden als mögliche Aufbereitungsmethoden untersucht. Dabei wurden Schwebstoffe mittels Flotation in Verbindung mit einem Flockungsmittel wirksam entfernt und die Summe der gelösten Feststoffe um 50 % reduziert. Nach der anschließenden Behandlung mit Nanofiltration verblieben im Wasser nur 860 mg/L Gesamtlösungsinhalt. Das aufbereitete Wasser kann im Eshydia Phosphatbergwerk wieder genutzt oder zur Bewässerung verwendet werden.Aproximadamente 10.000 m³/día de aguas residuales no tratadas son producidas durante el beneficio de fosfatos en la mina de fosfatos Eshydia en el sur de Jordania. El efluente contiene 21 % en peso de fosfatos (P$_{2}$O$_{5}$) y 12-14 % en peso de sólidos. Flotación con aire disuelto (DAF) y posterior nanofiltración (NF) fueron estudiados como potenciales métodos de tratamiento. La combinación de DAF con el uso de floculantes comerciales removió eficazmente los sólidos suspendidos y disminuyó el total de sólidos disueltos (TDS) en 50%; NF permitió tratar eficazmente el efluente DAF y produjo agua con solo 860 ppm TDS. El agua tratada puede ser reciclada para el uso en la mina de fosfato Eshydia o para irrigación.约旦南部Eshydia磷酸盐矿的选矿过程每日要产生大约10000m³未经处理污水。这些污水含有质量百分比21%磷酸盐和12-14%不溶固体。溶气浮选(DAF)及后续配套纳米过滤(NF)是适于该污水的可能处理方法。DAF与某种商用凝聚剂结合使用,能够有效去除污水中悬浮物,并使污水总溶解固体(TDS)减少50%。NF可以有效处理DAF流出液,使其总溶解固体(TDS)降至860ppm。污水经处理可被Eshydia磷酸盐矿循环利用或用于农田灌溉。 |
| Starting Page | 214 |
| Ending Page | 224 |
| Page Count | 11 |
| File Format | |
| ISSN | 10259112 |
| Journal | Mine Water and the Environment |
| Volume Number | 31 |
| Issue Number | 3 |
| e-ISSN | 16161068 |
| Language | Chinese |
| Publisher | Springer-Verlag |
| Publisher Date | 2012-07-05 |
| Publisher Institution | International Mine Water Association (IMWA) |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Eshydia mine Phosphate beneficiation Flocculant Membrane technology Jordan Energy Economics Hydrogeology Sedimentology Ecotoxicology Geology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Water Science and Technology Geotechnical Engineering and Engineering Geology |
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