Acid rock drainage treatment by clinoptilolite with slurry bubble column: Sustainable zinc removal with regeneration of clinoptilolite
Source abstract
Abstract
Abstract Clinoptilolite is shown to be capable of removing zinc from ARD, while the zinc in loaded clinoptilolite is displaced by NaCl as regenerant. Repeated capture–regeneration cycles were tested, showing the evolution of uptake capacity over multiple cycles. Fresh and reused NaCl as regenerant were compared to explore a possible means of minimizing the waste volume. The results prove that uptake/removal cycles can be repeated several times while maintaining reasonable uptake and removal capacities. Three removal-only cycles after 10 full cycles continuously decreased the accumulated zinc in clinoptilolite, allowing the uptake capacity for further upcoming cycles to be recovered. When 10 full cycles were tested after the three removal stages, results were similar to those for the first 10 cycles. By reusing NaCl as regenerant, only one-quarter of the regenerant volume was required to achieve a similar total zinc uptake from ARD compared with fresh NaCl.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mine drainage and remediation techniques · Tailings Management and Properties · Minerals Flotation and Separation Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (48)
Show source-provided references
1. Removal of 137Cs from aqueous solutions using different cationic forms of a natural zeolite: clinoptilolite10.1016/S1383-5866(02)00042-4 ↗
2. Acid mine drainage (AMD): causes, treatment and case studies10.1016/j.jclepro.2004.09.006 ↗
3. Studies on natural clinoptilolites: homoionic clinoptilolites10.1016/0022-1902(81)80508-8 ↗
4. Influence of chemical conditioning on the ion exchange capacity and on kinetic of zinc uptake by clinoptilolite10.1016/j.watres.2005.01.024 ↗
5. Barrer · 1978 · 385
6. Removal of heavy metals from waters by means of natural zeolites10.1016/0043-1354(84)90124-6 ↗
7. Breck · 1974
8. Study of sorption equilibria in the systems: water solutions of inorganic ions — clinoptilolite10.1007/BF02164048 ↗
9. Clesceri · 1998
10. Exploration of remediation of acid rock drainage with clinoptilolite as sorbent in a slurry bubble column for both heavy metal capture and regeneration10.1016/j.watres.2006.07.028 ↗
11. Metal ion exchange by natural and modified zeolites10.1016/S0043-1354(96)00411-3 ↗
12. Uptake of Zn2+ ions by a fully iron-exchanged clinoptilolite. Case study of heavily contaminated drinking water samples10.1016/j.watres.2007.02.045 ↗
13. Removal of Mn2+ ions from drinking water by using clinoptilolite and a clinoptilolite–Fe oxide system10.1016/j.watres.2006.07.013 ↗
14. Synthesis of a clinoptilolite–Fe system with high Cu sorption capacity10.1016/j.chemosphere.2006.10.072 ↗
15. The effect of electrolyte anion on Cu adsorption–desorption by clinoptilolite10.1016/S1387-1811(02)00610-8 ↗
16. Copper adsorption and Si, Al, Ca, Mg, and Na release from clinoptilolite10.1006/jcis.2001.7961 ↗
17. A review of some physiological and toxicological responses of freshwater fish to acid stress10.1007/BF00000954 ↗
18. Sorption of trace quantities of cadmium by soils with different chemical and mineralogical composition10.1007/BF00280677 ↗
19. A review of passive systems for the treatment of acid mine drainage10.1016/0892-6875(95)00129-8 ↗
20. Acid mine drainage composition and the implications for its impact on lotic systems10.1016/S0043-1354(97)00449-1 ↗
21. Spatial and temporal patterns of acidity and heavy metals in predicting the potential for ecological impact on the Le An river polluted by acid mine drainage10.1016/S0048-9697(97)00217-9 ↗
22. The chemical, toxicological and ecological studies in assessing the heavy metal pollution in Le An River, China10.1016/S0043-1354(97)00229-7 ↗
23. Pretreatment of natural clinoptilolite in a laboratory-scale ion exchange packed bed10.1016/S0043-1354(00)00500-5 ↗
24. Equilibrium and kinetic ion exchange studies of Pb2+, Cr3+, Fe3+ and Cu2+ on natural clinoptilolite10.1016/S0043-1354(01)00504-8 ↗
25. Ion exchange studies on natural and modified zeolites and the concept of exchange site accessibility10.1016/j.jcis.2004.02.070 ↗
26. Acid mine drainage remediation options: a review10.1016/j.scitotenv.2004.09.002 ↗
27. Effects of conditioning and treatment of chabazite and clinoptilolite prior to lead and cadmium removal10.1021/es00043a009 ↗
28. The impact of acid mine drainage on the stream ecosystem
29. NH4+, Cu2+, Zn2+, Cd2+ and Pb2+ exchange for Na+ in a sedimentary clinoptilolite, North Sardinia, Italy10.1016/S1387-1811(99)00276-0 ↗
30. Treatment of acid rock drainage by clinoptilolite adsorptivity and structural stability for different pH environments10.1016/j.clay.2007.04.003 ↗
31. A new equilibration method for cation-exchange capacity measurement10.2136/sssaj1985.03615995004900030008x ↗
32. Adsorption of heavy metals from acid mine drainage by natural zeolite10.1016/j.minpro.2009.02.005 ↗
33. Kinetic studies of the removal of heavy metals from acid mine drainage by natural zeolite10.1016/j.minpro.2011.07.004 ↗
34. Factors affecting adsorption characteristics of Zn2+ on two natural zeolites10.1016/j.jhazmat.2005.09.027 ↗
35. Performance of natural zeolites for the treatment of mixed metal-contaminated effluents10.1177/0734242X9701500406 ↗
36. Ion exchange equilibria between clinoptilolite and aqueous solutions of Na+/Cu2+, Na+/Cd2+ and Na+/Pb2+10.1016/S1387-1811(03)00361-5 ↗
37. Heavy metal removal by clinoptilolite. An equilibrium study in multi-component systems10.1016/j.watres.2004.12.003 ↗
38. Cation exchange capacity
39. The influence of pretreatment on the capacity and selectivity of clinoptilolite for metal ions10.1016/0043-1354(88)90052-8 ↗
40. Use of natural clinoptilolite for the removal of lead, copper and zinc in fixed bed column10.1016/j.jhazmat.2006.09.096 ↗
41. A comparative study of ion exchange kinetics in zinc/lead modified zeolite-clinoptilolite systems10.1016/j.jhazmat.2006.01.032 ↗
42. Lead removal in fixed-bed columns by zeolite and sepiolite10.1016/j.chemosphere.2005.02.036 ↗
43. USEPA · 1987
44. Occurrence, properties and pollution potential of environmental minerals in acid mine drainage10.1016/j.scitotenv.2008.09.050 ↗
45. Adsorption of cadmium on acid-modified Transcarpathian clinoptilolite10.1016/S1387-1811(03)00376-7 ↗
46. Zinc removal from acid rock drainage by clinoptilolite in a slurry bubble column10.1016/j.clay.2010.07.005 ↗
47. Regeneration of natural Bear River clinoptilolite sorbents used to remove Zn from acid mine drainage in a slurry bubble column
48. Removal of heavy metals and other cations from wastewater using zeolites10.1080/01496399008050409 ↗