Application of membrane distillation and solvent extraction for water and acid recovery from acidic mining waste and process solutions

Kesieme, Uchenna; Aral, Hal

doi:10.1016/j.jece.2015.07.008

Cited by 48 publications

(54 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Membranes have widely been implemented as a valuable means of filtering and cleaning in the production of processed water from groundwater, surface water or wastewater. Some studies have demonstrated that separation processes through membranes could be effective in treating mine water (Kesieme & Aral 2015;Mullett et al 2014). As reported by Kesieme and Aral (2015), sulphate and metal separation efficiency was > 99.99% and the overall water recovery exceeded 80%.…”

Section: Introductionmentioning

confidence: 86%

“…Some studies have demonstrated that separation processes through membranes could be effective in treating mine water (Kesieme & Aral 2015;Mullett et al 2014). As reported by Kesieme and Aral (2015), sulphate and metal separation efficiency was > 99.99% and the overall water recovery exceeded 80%. On the other hand, rejection above 95% for all multivalent cations was achieved by NF 270 membrane in Mullet et al (2014) research work.…”

Section: Introductionmentioning

confidence: 86%

See 1 more Smart Citation

Potential of Membrane Technology for Treatment and Reuse of Water from Old Mining Lakes

Teow¹,

Mohammad²,

Ramli

et al. 2018

JSM

View full text Add to dashboard Cite

The El-Nino phenomenon in early 2014 contributed to the lack of water supply in most Southeast Asian countries. Suggestions have since been made to ensure the continuity of water supply, one of which involves membrane technology to treat mine water so that it is compatible for citizens' use. Accordingly, the objective of this research was to study the efficiency of membrane technology in treating mine water. Our elucidation of all the parameters has showed that the best attainable classification is at Class IV. Although it was still regarded as polluted, the treated mine water can be used as water supply reservoir. For the membranes tested such as ultrafiltration 10 kDa, 5 kDa and reverse osmosis, the percentage of rejection for chemical oxygen demand is 21-72%, 40-96% for total suspended solids and 21-72% for ammonia nitrogen. The pH also gradually shifted to almost neutral after the filtration.

show abstract

Section: Introductionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 86%

Potential of Membrane Technology for Treatment and Reuse of Water from Old Mining Lakes

Teow¹,

Mohammad²,

Ramli

et al. 2018

JSM

View full text Add to dashboard Cite

show abstract

“…Li et al (2014) and Lee et al (2015) successfully desalinated brine streams with a hybrid vacuum-enhanced direct contact membrane distillation (VEDCMD) and forward osmosis (FO) system. Kesieme and Aral (2015) propose the use of DCMD for water and acid recovery from acidic mine waste. Most of the research found in the literature provides concepts on MD applications and potential hybrid solutions for brine treatment (Xie et al 2013;Chafidz et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Computational and experimental study for the desalination of petrochemical industrial effluents using direct contact membrane distillation

2019

View full text Add to dashboard Cite

The petrochemical, mining and power industries have reacted to the recent South African water crisis by focussing on improved brine treatment for water and salt recovery with the aim of achieving zero liquid effluent discharge. The purpose of this novel study was to compare experimentally obtained results from the treatment of synthetic NaCl solutions and petrochemical industrial brines such as spent ion exchange regenerant brines and reverse osmosis (RO) brines to the classical well-known Knudsen diffusion, molecular diffusion and transition predictive models. The predictive models were numerically solved using a developed mathematical algorithm that was coded using MATLAB ® software. The impact of experimentally varying the inlet feed temperature on process performance of the system is presented here and compared to simulated results. It was found that there was good agreement between the experimentally obtained results, for both the synthetic NaCl solution and the industrial brines. The mean average percentage error (MAPE) was found to be 7.9% for the synthetic NaCl solutions when compared to the Knudsen model. The Knudsen/molecular diffusion transition theoretical model best predicted the performance of the membrane for the industrial spent ion exchange regenerant brine with a mean absolute percentage error (MAPE) of 13.3%. The Knudsen model best predicted the performance of the membrane (MAPE of 10.5%) for the industrial RO brine. Overall, the models were able to successfully predict the water flux and can be used as potential process design tools.

show abstract

“…Mineral acids such as H 2 SO 4 , HNO 3 , HCl and H 3 PO 4 are widely used in hydrometallurgical processes in various operations such as leaching, etching, electrowinning and electro‐refining . As a result, large amounts of acidic waste solutions are generated, causing environmental problems.…”

Section: Introductionmentioning

confidence: 99%

“…These acidic waste streams sometimes contain heavy metals such as Ni, Co, Cu, Zn, Cd, Pb, etc. making them difficult to dispose of . Other acidic waste solution also considered is acid mine drainage (AMD), which is today the biggest environmental threat from mining activities .…”

Section: Introductionmentioning

confidence: 99%

A review of acid recovery from acidic mining waste solutions using solvent extraction

Kesieme

Chrysanthou

Catulli

et al. 2018

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

The minerals industry is increasingly being forced by regulatory and cost pressures to reduce the amount of liquid acidic waste they produce. This requires a strong focus on waste reduction by recycling, regeneration and reuse. Four mineral acids were examined for recovery from waste acidic solutions including H 2 SO 4 , HNO 3 , HCl, and H 3 PO 4 . The selection of the optimal extractant for acid recovery was based on extraction, stripping and scrubbing efficiencies. The extractants suitable for the recovery of H 2 SO 4 and HCl are in the order of TEHA > Cyanex 923 > TBP > Alamine 336. TEHA has the highest degree of acid extraction and stripping compared with Cyanex 923 and almost 99% of the acid can be stripped. Alamine 336 can extract higher acid (for H 2 SO 4 and HCl systems) than Cyanex 923 and TBP. However loaded acid for Alamine 336 system cannot be stripped using water at 60 ∘ C. For the recovery of nitric and phosphoric acids from acidic waste effluents, TBP was the best option. This work clearly demonstrates that extractant suitable for acid extraction may not be suitable for its recovery. However such extractant may be applied for the removal of acid from any waste acidic solution sacrificing the back extraction of the loaded acid. The effective implementation of options for acid recovery was examined to improve sustainability in the mineral industry. or FeS 2 (s) + 7∕2 O 2 (g) + H 2 O (l) → Fe 2+ (aq) + 2SO 2-4 (aq) + 2H + (aq) + energy J Chem Technol Biotechnol 2018; 93: 3374-3385

show abstract

Application of membrane distillation and solvent extraction for water and acid recovery from acidic mining waste and process solutions

Cited by 48 publications

References 18 publications

Potential of Membrane Technology for Treatment and Reuse of Water from Old Mining Lakes

Potential of Membrane Technology for Treatment and Reuse of Water from Old Mining Lakes

Computational and experimental study for the desalination of petrochemical industrial effluents using direct contact membrane distillation

A review of acid recovery from acidic mining waste solutions using solvent extraction

Contact Info

Product

Resources

About