Authors: Legge, KR

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DOI https://doi.org/10.36487/ACG_rep/1910_0.02_Legge

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Legge, KR 2019, 'An economy and ecosystem symbiosis: barrier systems for water conservation and pollution control', in AJC Paterson, AB Fourie & D Reid (eds), Paste 2019: Proceedings of the 22nd International Conference on Paste, Thickened and Filtered Tailings, Australian Centre for Geomechanics, Perth, pp. 5-50, https://doi.org/10.36487/ACG_rep/1910_0.02_Legge

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Abstract:
An awareness of the rate at which water resource development took place in South Africa being supply driven, until relatively recent times, leads to an appreciation of the changing philosophy in respect of water conservation and pollution control, as well as essential amendment to principles and procedures. Reconciling water demand and supply in catchments requires concurrent consideration of available water quantity and quality. This stimulates the need for change in the way we view water uses and brings about business opportunities in the sector. The review of infrastructure designs in support of water use and mining applications for industrial and mining waste has developed and transformed along with improved technology and changes in legislation since 1994 in South Africa. A containment barrier system comprises of both filter protected drains and low permeability liners which are visible in the short term until covered. They are required to perform effectively after initial use and are often inaccessible for the operating period and subsequent service life of decades or even centuries. This paper presents a regulator’s perspective of commonly repeated deviation from accepted norms and standards in the engineering profession, as applied to pollution control facilities. Emphasis is placed on the standards of today with experience reflecting on the past five years of design reviews, leading to conclusions and recommendations for facility owners and practitioners. Examples of procedure, mechanisms, performance, specifications and socio-economic benefits are addressed. It is postulated that in the near future many mining and industrial developers will choose to improve containment standards of barrier systems as a component of reengineering water demands and for economic advantage while embracing contributions from ecosystem services.

Keywords: water conservation, pollution control, barrier systems, ecosystem services

References:
Acikel, AS, Gates, WP, Singh, RM, Bouazza, A & Rowe, RK, 2018, ‘Insufficient initial hydration of GCLs from some subgrades: factors and causes’, Geotextiles and Geomembranes, vol. 46(2018), pp. 770–781.
Alphabet Inc. 2019, Google Earth image,
Basson, MS, Combrinck, A, Schroder, JH & Rossouw, JD 2010, Assessment of the Ultimate Potential and Future Marginal Cost of Water Resources in South Africa, DWA Report no. P RSA 000/00/12610, Department Water Affairs, Republic of South Africa, PSP Report no. J01330-12, September 2010, 178 p.
Ball, JM 2002, ‘Milestones towards minimum requirements’, Proceedings of the International Waste Management Biennial Congress & Exhibition, Institute of Waste Management of Southern Africa, Roodepoort.
BAM 2015, Guidelines for the Certification of Protection Layers for Geomembranes in Landfill Sealing Systems, 5th edn, issued by Division 4.3 ‘Contaminant Transfer and Environmental Technologies’.
Beck, A 2015, ‘Available technologies to approach zero leaks’, Proceedings of the Geosynthetics 2015 Conference, Industrial Fabrics Association International, Roseville.
Benson, CH 2017, ‘Characteristics of gas and leachate at an elevated temperature landfill’, Proceedings of GeoFrontiers 2017, pp. 313–322.
Brink, D, Shamrock, J, Nortje, R, Johns, J & Msiza, J 2009, ‘Some pitfalls in the design of lining and capping systems for landfills’, Landfill Interest Group Conference, Western Cape, South Africa.
Cedergren, HR 1968, Seepage, Drainage, and Flow Nets, 3rd edn, Wiley-Interscience Publications, Hoboken.
Chen, J, Benson, CH, Likos, WJ & Edil, TB 2017, ‘Interface shear strength of a bentonite-polymer geosynthetic clay liner and a textured geomembrane’, Proceedings GeoFrontiers, pp. 219–226.
Chou, YC, Rowe, RK & Brachman, WI 2018, ‘Erosion of silty sand tailings through a geomembrane defect under filter incompatible conditions’, Canadian Geotechnical Journal, November, vol. 55, pp. 1564–1575.
Constitutional Court of South Africa 2015, Case CCT 216/14: Shoprite Checkers (Pty) Limited v Member of the Executive Council for Economic Development, Environmental Affairs and Tourism: Eastern Cape and Others [2015], ZACC 23, 30 June 2015, South Africa.
Department of Water Affairs and Forestry (DWAF) 1998, Minimum Requirements for Waste Disposal by Landfill, 2nd edn, Waste Management Series, ISBN 0620-22993-4.
Department of Water Affairs (DWA) 2009, Welbedacht Report, Welbedacht Dam Capacity Determination, Report number D200-01 By Directorate: Spatial and Land Management.
Department of Water Affairs (DWA) 2010, Integrated Water Resource Planning for South Africa, A Synopsis of the Situation for Key Systems, October 2010.
Dolez, P, Beaumier, D, Taghizadeh, A & Blond, E 2017, ‘Effect of white and black colors on heat generation in polyethylene geomembranes exposed to solar radiation’, Proceedings of GeoFrontiers 2017, pp. 259–266.
Dolez, P & Blond, E 2017, ‘Evaluation of geotextile performance for the filtration of fine-grained tailings’, Proceedings of GeoFrontiers 2017, pp. 269–277.
Doll, P 1997, ‘Desiccation of mineral liners below landfills with heat generation’, Journal of Geotechnical and Geoenvironmental Engineering, November 1997.
Dzikiti, S, Schachtschneider, K, Naiken, V, Gush, M, Moses, G & Le Maitre, DC 2013, ‘Water relations and the effects of clearing invasive Prosopis trees on groundwater in an arid environment in the Northern Cape, South Africa’, Journal of Arid Environments, vol. 90, pp. 103–113.
Eldesouky, HMG & Brachman, RWI 2018, ‘Calculating local geomembrane strains 724 from a single gravel particle with thin plate theory’, Geotextiles and Geomembranes, 725 vol. 46, no. 1, pp. 101–110.
Elges, HFWK 1985, ‘Problem soils in South Africa – state of the art, The Civil Engineer in South Africa, vol. 27, issue 7, pp. 341–345.
Engineering Council of South Africa 2017, Code of Conduct for Registered Persons: Engineering Profession Act 2000 (Act No. 46 of 2000), Board Notice 41, Government Gazette, No. 40691, pp. 142–147.
Ewais, AMR, Rowe, RK & Scheirs, J 2014, ‘Degradation of 2.4mm HDPE geomembrane with high residual HP-OIT’, Proceedings of the 10th International Conference on Geosynthetics, International Geosynthetics Society, Jupiter.
Foose, GJ, Benson, CH & Edil, TB 2001, ‘Analytical equations for predicting concentration and mass flux from composite liners’, Geosynthetics International, vol. 8, no. 6, pp. 551–575.
Fourie, F, Khumbalani, M, Verster, H & van Dyk, G, 2002, ‘The effect of vegetation (Prosopis Sp.) on groundwater levels in Rugseer River, Kenhardt, South Africa’, technical report, Department of Water Affairs South Africa.
Froneman, J, Moseneke, DCJ & Madlanga, J 2015, Shoprite Checkers (Pty) Limited v Member of the Executive Council for Economic Development, Environmental Affairs and Tourism, Eastern Cape and Others (CCT 216/14) [2015] ZACC 23; 2015 (6) SA 125 (CC, 2015 (9) BCLR 1052 (CC) (30 June 2015).
GIGSA Newsletter 1999, ‘Fairness associated with specifications’, November 1999.
Giroud, JP, Badu-Tweneboah, K & Soderman, KL 1994, ‘Evaluation of landfill liners’, Proceedings of the Fifth International Conference on Geotextiles, Geomembranes and Related Products, International Geotextile Society, Singapore, vol. 3, pp. 981–986.
Hao, Z, Sun, M, Ducoste, J & Barlaz, M 2017, ‘A model to describe heat generation and accumulation at municipal solid waste landfills’, Proceedings of GeoFrontiers 2017, pp. 281–288.
Hornsey, WP 2013, ‘Performance of cushion geotextiles for liner protection applications’, presentation at GeoAfrica 2013 Conference, Ghana.
ICOLD 1986, ‘Geotextiles as filters and transitions in fill dams’, ICOLD Bulletin 55, CIGB Publications.
ICOLD 1994a, ‘Embankment dams granular filters and drains: review and recommendations’, Bulletin 95, CIGB Publications.
ICOLD 1994b, ‘Tailings dams design of drainage: review and recommendations’, Bulletin 97, CIGB Publications.
ICOLD 1995, ‘Dam failures statistical analysis’, Bulletin 99, CIGB Publications.
ICOLD 2013, ‘Historical review on ancient dams’, Bulletin 143, CIGB Publications.
ICOLD 2017, ‘Internal erosion of existing dams, levees and dikes and their foundations’, Bulletin 164, CIGB Publications.
Juta, H 1907, Water Rights Under the Common Law and the Irrigation Act No. 32 of 1906, viewed 25 March 2019,
Khilnani, K, Stark, TD & Bahadori, TM 2017, ‘Comparison of single and multi-layer interface strengths for geosynthetic/ geosynthetic and soil/geosynthetic interfaces’, Proceedings of GeoFrontiers 2017, pp. 42–51.
Koerner, RM & Koerner, JM 2007, GRI’s Second Worldwide Survey of Solid Waste Landfill Liner and Cover Systems, GRI Report No. 34.
Koerner, GR & Koerner, RM 2017, ‘The durability of exposed geomembrane covers’, Proceedings of GeoFrontiers 2017, pp. 139–145.
Koerner, RM & Wong, W 2011, Analysis and Critique of Twenty Large Solid Waste Landfill Failures, GRI Report No. 41, 17th October 2011.
Koerner, RM 2017, Utilizing PVDs to Provide Shear Strength to Saturated Fine-Grained Foundation Soils, GRI Report 46, 28 July 2017.
Legge, KR 1990, ‘A new approach to geotextile selection’, Proceedings of the 4th International Conference on Geotextiles Geomembranes and Related Products, vol. 3, A.A. Balkema, pp. 1040–1041.
Legge, KR, Legg, PA & Meyer, PJ 2007, ‘Coupled solution to heat induced degradation of containment barriers’, Proceedings of the 11th International Waste Management and Landfill Symposium, Environmental Sanitary Engineering Centre, Cagliari.
Legge, KR, Fricker, C, Mnisi, K, Nemusibi, K & Seake, B 2014, ‘Service life considerations of pollution control barrier systems’, SAICE Civil Engineering Magazine, vol. 22, no. 7.
Legge, KR, Fricker, C & Mnisi, K 2015, ‘Pollution prevention awareness for municipal managers in South Africa, SAICE Civil Engineering Magazine, vol. 23, no. 9.
Le Maitre, DC, Forsyth, G, Dzikiti, S & Gush, MB 2016, ‘Estimates of the impacts of invasive alien plants on water flows in South Africa’, Water SA, vol. 42, no. 4.
Liefferink, M, 2012, Environmental Risks and Hazards Pertaining to AMD and Radioactivity within the Witwatersrand Goldfields, Powerpoint presentation made to the Endangered Wildlife Trust, Johannesburg Country Club.
Lu, Y, Abuel-Naga, H, Leong, EC, Bouazza, A & Lock, P 2018, ‘Effect of water salinity on the water retention curve of geosynthetic clay liners’, Geotextiles and Geomembranes, vol. 46, pp. 707–714.
Mallory, SJL, Versveld, D & Nditwani, T 2011, ‘Estimating stream-flow reduction due to invasive alien plants: are we getting it right?’, South African National Committee for the International Association of Hydrological Sciences (SANCIAHS) Symposium.
McWatters, R, Rowe, KR & Jones, D 2015, ‘Co-extruded geomembranes in barrier systems in extreme environments – from high temperature laboratory tests to Antarctica field sites’, Proceedings of the Geosynthetics 2015 Conference, Industrial Fabrics Association International, Roseville.
Msadala, VP & Basson, GR 2009, Sediment Yield Prediction Based on Analytical Methods and Mathematical Modelling, thesis (in partial fulfilment of a degree of Master of Science), University of Stellenbosch, Stellenbosch.
Meyer, W, Meyer, PJ & Gundle, C 2014, ‘Expanding containment barrier boundaries’, Proceedings of the 10th International Conference on Geosynthetics, International Geosynthetics Society, Jupiter.
Morgenstern, NR, Vick, SG & Van Zyl, D 2015, Report on Mount Polley Tailings Storage Facility Breach, Independent Expert Engineering Investigation and Review Panel, British Columbia, 30 January 2015, unpublished.
Morsy, MS & Rowe, RK 2017, ‘Performance of blended polyolefin geomembrane in various incubation media based on Std-OIT’, Proceedings of GeoFrontiers 2017, pp. 1–10.
National Treasury of South Africa 1999, Public Finance Management Act No. 1 of 1999, viewed 25 March 2019,
National Treasury of South Africa 2004, Supply Chain Management: A Guide for Accounting Officers/Authorities, viewed 28 March 2019,
Palm, JG & Visser, JL 2015, ‘Landfill licensing and liners’, Western Cape LIG Seminar, Tulbagh, 15–16 September 2015.
Pavanello, P, Carrubba, P & Moraci, N 2018, ‘Dynamic friction and the seismic performance of geosynthetic interfaces’, Geotextiles and Geomembranes, vol. 46(2018), pp. 715–725.
Peggs, ID, Schmucker, B & Carey, P 2005, ‘Assessment of maximum allowable strains in polypropylene geomembranes’, Proceedings Geofrontiers 2005, Austin Texas.
Preston, IR, Le Maitre, DC, Blignaut, JN, Louw, L & Palmer, CG 2018, ‘Impact of invasive alien plants on water provision in selected catchments’, Water SA, vol. 44, no. 4, pp. 719–729.
Reinhart, DR, Mackay, R, Levin, S, Joslyn, R & Motlagh, A 2017, ‘Field investigation of an elevated temperature Florida landfill’, Proceedings of GeoFrontiers, pp. 298–301.
Republic of South Africa 1979, White Paper K-79: Supplementary Report on the Proposed Vaal Dam Betterments and Additional Storage, Republic of South Africa.
Republic of South Africa 1982, White Paper C-82: Second Supplementary Report on the Proposed Vaal Dam Betterments and Additional Storage, Republic of South Africa.
Republic of South Africa 1998a, ‘Competition Act No. 89 of 1998’, Government Gazette, vol. 400, no. 19412, 36 p.
Republic of South Africa 1998b, ‘National Water Act No. 36’, Government Gazette, vol. 398, no. 19182, pp. 1–152.
Republic of South Africa 1998c, ‘National Environmental Management Act 107 of 1998’, Government Gazette, no. 19519.
Republic of South Africa 2000, ‘Engineering Professions Act No. 46’, Government Gazette, vol. 426, no. 1821, 20 p.
Republic of South Africa 2008, ‘National Environmental Management: Waste Act, 2008 (Act No. 59 of 2008)’, Government Gazette, no. 36784.
Rowe, RK, Quigley, RM, Brachman, RWI & Booker, JR 2004, Barrier Systems for Waste Disposal Facilities, 2nd edn, E & FN Spon, Milton Park.
Rowe, RK & Van Gulck, JF 2004, ‘Filtering and drainage of contaminated water’, in AB Fourie (ed.), Proceedings of the Fourth International Conference on Geofilters, University of the Witwatersrand, Johannesburg, pp. 1–63.
Rowe, RK 2005, ‘Long term performance of containment barrier systems’, Géotechnique, vol. 55, no. 9, pp. 631–678.
Rowe, RK 2011, Geosynthetics in Bottom Liners and Covers for Use in Lagoons, Secondary Containment, Landfill and Mining Applications, GIGSA Seminar, Stone Cradle, Gauteng, South Africa, 6th-7th September 2011.
Rowe, RK 2012, ‘Short and long-term leakage through composite liners. The 7th Arthur Casagrande Lecture’, Canadian Geotechnical Journal, vol. 49, no. 2, pp. 141–169.
Rowe, RK & Ewais, AMR 2014, ‘Degradation behaviour of HDPE geomembrane with high and low initial high-pressure oxidative induction time’, Geotextile and Geomembranes, vol. 42, iss. 2, April, pp. 111–126.
Rowe, RK, Joshi, P, Brachmann, RWI and McCleod, H 2017, ‘Leakage through holes in geomembranes below saturated tailings’, Journal of Geotechnical and Geoenvironmental Engineering, vol. 143, iss. 2, 2017.
Rowe, RK 2018, ‘Geosynthetic clay liners: perceptions and misconceptions’, Proceedings of the 11th International Conference on Geosynthetics, Korean Geosynthetics Society, Seoul.
Rowe, RK & Yu, Y 2019, ‘Magnitude and significance of tensile strains in geomembrane landfill liners’, Geotextiles and Geomembranes, https:dx.doi.org/10.1016/j.geotexmem.2019.01.001
Sample-Lord, KM, Bohnhoff, GL & Tong, S 2017, ‘Diffusion of calcium chloride through polymerized bentonite’, Proceedings of GeoFrontiers 2017, pp. 200–208.
Scalia, J & Benson, CH 2011, ‘Hydraulic conductivity of geosynthetic clay liners exhumed from landfill final covers with composite barriers’, ASCE Journal of Geotechnical and Geoenvironmental Engineering, January 2011, vol. 1, pp. 1–13.
Scott, DF, Le Maitre, DC & Fairbanks, DHK 1998, ‘Forestry and streamflow reductions in South Africa: a reference system for assessing extent and distribution’, Water SA, vol. 24, no. 3, July.
Shamrock, J & Msiza, J 2015, ‘HDPE geomembrane specification and performance implications’, Western Cape LIG Seminar, Tulbagh, 15–16 September 2015.
Sherard, JL & Dunnigan, LP 1989, ‘Critical filters for impervious soils’, Journal of Geotechnical Engineering, vol. 115, no. 7, July 1989, ASCE, ISSN 0733-9410/89/0007-0927
Shukla, SK 2012, Handbook of Geosynthetic Engineering, 2nd edn, ICE Publishing, London, p. 289.
Singh, M, Kijko, A & van den Berg, L 2010, ‘Seismic risk ranking for large dams in South Africa’, Acta Geophysica, Institute of Geophysics, Polish Academy of Sciences.
Singh, RM & Bouazza, A 2013, ‘Thermal conductivity of geosynthetics’, Geotextiles and Geomembranes, vol. 39(2013), pp. 1–8.
Stark, TD & Jafari, NH 2017, ‘Landfill operational techniques in the presence of elevated temperatures’, Proceedings of GeoFrontiers 2017, pp. 289–297.
Take, A, Brachman, WI, Rowe, RK & Rentz, A 2014, ‘Temperature measurements of exposed GMB/GCL composite liners’, Proceedings of the 10th International Conference on Geosynthetics, Deutsche Gesellschaft fuer Geotechnik, Essen.
Take, WA, Brachman, RWI & Rowe, RK 2015, ‘Observations of bentonite erosion from solar-driven moisture migration in GCLs covered only by a black geomembrane’, Geosynthetics International, vol. 22, iss. 1, pp. 78–92.
Tian, K, Benson, CH & Likos, WJ 2017, ‘Effect of anion ratio on the hydraulic conductivity of a bentonite-polymer geosynthetic clay liner’, Proceedings of GeoFrontiers 2017, pp. 180–189.
Tognon, AR, Rowe, RK & Moore, ID 2000, ‘Geomembrane strain observed in large scale testing of protection layers’, Journal of Geotechnical and Geoenvironmental Engineering, vol. 126, no. 12, pp. 1194–1208.
Union of South Africa 1934, Vaal River Development Act, Act 38 of 1934.
Union of South Africa 1940, Irrigation and conservation of waters act, 1912 (act no. 8 of 1912) with amendments to March, 1940: Besproeiing- en waterbewaringswet, 1912 (wet no. 8 van 1912) met amendemente tot Maart 1940 / Unie van Suid-Afrika, Government Printer, Pretoria.
Union of South Africa 1956, Water Act, No. 54 of 1956, Statutes of the Republic of South Africa – Water, pp. 1201–1399, viewed 25 March 2019,
van Rooyen, JA & Versfeld, DB 2010, Integrated Water Resource Planning for South Africa: A Situation Analysis 2010, Department of Water Affairs, Pretoria, viewed 28 March 2019,
Weng, J 2017, ‘Feasibility of vacuum consolidated with stereo drain system in surface pre-reinforcement of dredged spoil’, Korean Society of Civil Engineers, Journal of Civil Engineering, published online August 31, 2017, pp. 1–6.
World Resources Institute 2003, Watersheds of the World: Global Maps, 15. Annual Renewable Water Supply Per Person by Basin for 1995 and Projections for 2025, viewed 28 March 2019,
World Resources Institute 2015, Extreme Water Shortages are Expected to Hit These Countries by 2040, article by Jeff Desjardins, August 31, 2015, www.visualcapitalist.com
Abdelaal, FB & Rowe, RK 2015, ‘Durability of three HDPE geomembranes immersed in different fluids at 85°C’, Journal of Geotechnical and Geoenvironmental Engineering, vol. 141, iss. 2.
Ali, MA & Bouazza, A, Singh, RM, Gates, WP & Rowe, K 2016, ‘Thermal conductivity of geosynthetic clay liners’, Canadian Geotechnical Journal, vol. 53, no. 9, pp. 1510–1521.
Ashe, LE, Rowe, RK and Brachman, RWI 2015, ‘Laboratory study of downslope erosion for 10 different GCLs’, Journal of Geotechnical and Geoenvironmental Engineering, vol. 141, no. 1.
Benson, CH, Jo, HY & Musso, T 2015, ‘Hydraulic conductivity of organoclay and organoclay-sand mixtures to fuels and organic liquids’, Journal of Geotechnical Engineering, vol. 141, no 2.
Benson, CH 2016, Exothermic Reactions in Elevated Temperature Landfills: Field Observations and Laboratory Experiments, webinar,
Bouazza, MA 2016, ‘New insight on geosynthetic clay liner hydration: the key role of subsoil mineralogy’, Geosynthetics International, vol. 24, no. 2, pp. 139–150.
Charpentier, C 2016, ‘Case study on electrical leak location using both water puddle and dipole methods on a mining waste cap totalling 255 000m2’, Proceedings of the 3rd Pan-American Conference on Geosynthetics, International Geosynthetics Society, Jupiter.
Copeland, A 2014, ‘Do all TSF’s leak and need to be lined?’, discussion paper, Proceedings of the 5th International Mining and Industrial Waste Management Conference.
Croft, F 2015, ‘Has there been any change in professional conduct?’, Civil Engineering, March.
Dashko, R & Shidlovskaya, A 2016, ‘Impact of microbial activity on soil properties’, Canadian Geotechnical Journal, May.
Davies, P & Legge, KR 2003, ‘Geosynthetic clay liners: use and abuse in South Africa’, Ninth International Waste Management and Landfill Symposium, Sardinia.
Department of Water Affairs and Forestry (DWAF) 2002, Guidelines on Provision to be made for the Impacts of Sedimentation in the Positioning of Purchase Lines around Reservoir Basins, A Rooseboom, SIGMA BETA, Consulting Civil Engineers.
Department of Water Affairs (DWA) 2010, Assessment of the ultimate potential and future marginal cost of water in South Africa, Report No. P RSA 000/00/12610 and PSP No. J01330-12, September 2010.
Dickson, S, Brachman, RWI & Rowe, RK 2010, ‘Thickness and hydraulic performance of geosynthetic clay liners overlying a geonet’, Journal of Geotechnical and Geoenvironmental Engineering, April.
Edil, T 2007, ‘Is aqueous-phase VOC transport from modern landfills a potential environmental problem’, Proceedings 11th International Waste Management and Landfill Symposium, 1–5 October 2007, Sardinia.
Ewais, AMR, Rowe, RK, Brachman, RWI & Arnepalli, DN 2016, ‘Service life of a high-density polyethylene geomembrane under simulated landfill conditions at 85°C’, Journal of Geotechnical and Geoenvironmental Engineering, vol. 140, iss. 11, November.
Fourmont, SB & Koerner, GR 2017, ‘Determining the long-term transmissivity of selected drainage geocomposites to landfill leachate’, GeoFrontiers Proceedings, pp. 274–280.
Fox, PJ & Stark, TD 2015, ‘State of the art report: GCL shear strength and its measurement – ten-year update’, Geosynthetics International, vol. 22, iss. 1, pp. 3–47.
Gilson-Beck, A 2016, ‘Best practices for groundwater protection’, GeoAmericas Proceedings 2016, Miami.
Giroud, JP, Houlihan, MF, Bachus, RC & Qureshi, S 1998, ‘Clogging potential of geosynthetic leachate collection layers by fine particles from sand protective layers, Proceedings 6th International Conference on Geosynthetics, vol. 1, pp. 185–190.
Golder Associates 2011, Technical Memorandum, De-silting of Mapochs Dam – Submission to the Regulator, reference number P1613796.
Government Gazette No. 704 of 1999 - National Water Act, Act 36 of 1998, Regulations on Use of water for Mining and Related Activities aimed at the Protection of Water Resources.
Gundle, CJ, Meyer, PJ, Meyer, W & Schaffner, M 2013, ‘Technology response for mitigating environmental impacts to achieve long-term pollution prevention’, GeoAfrica 2013 Conference, Ghana.
Haager, M 2014, ‘High temperature resistant geomembrane for hot brine’, 10th International Conference on Geosynthetics 2014, Berlin, Germany.
Honningford, L 2016, ‘Ensuring competent geomembrane installations’, SAICE Civil Engineering Magazine, vol. 24, June 2016, South Africa.
Hoor, A 2012, ‘Effect of temperature on the service life of landfill liners and potential temperature control strategies’, GeoAmericas 2012 Conference, Lima.
Hsuan, Y & Koerner, RM & Koerner, GR 2015, ‘Rationale and background for the GRI-GM13 specification for HDPE geomembranes’, GSI White Paper #32, Geosynthetic Institute, Folsom.
Jafari, NH, Stark, TD & Rowe, RK 2014, ‘Service life of HDPE geomembranes subjected to elevated temperatures’, Journal of Hazardous, Toxic, and Radioactive Waste, vol. 18, no. 1, pp. 16–26.
Jones, DD & Rowe, RK 2016, ‘BTEX migration through various geomembranes and vapor barriers’, Journal of Geotechnical and Geoenvironmental Engineering, vol. 142, iss. 10, October 2016.
Kaur, A & Fanourakis, GC 2016, ‘The effect of type, concentration and volume of dispersing agent on the magnitude of the clay content determined by the hydrometer analysis’, Journal of the South African Institute of Civil Engineering, vol. 58, no. 4, December 2016.
Klein, R, Baumann, T, Kahapka, E & Niessner, R 2001, ‘Temperature development in a modern municipal solid waste incineration (MSWI) bottom ash landfill with regard to sustainable waste management’, Journal of Hazardous Material, vol. 83, no. 3, pp. 265–280.
Koerner, GR & Najero, D 2005, ‘Direct shear database of geosynthetic-to-geosynthetic and geosynthetic-to-soil interfaces’, GRI Report No. 30, 14 June 2005.
Koerner, RM & Koerner, GR 2008, ‘Inadequate performance of geotextile filters under difficult and challenging field conditions’, GRI Report No. 36.
Koerner, RM, Hsuan, Y & Koerner, GR 2014, ‘Exposed lifetime of 19 different geosynthetics in the laboratory and in Phoenix, Arizona’, GRI Report No. 44, 16 December 2014.
Legge, KR 2012, ‘Composite filters of geotextile and natural materials for critical applications, GeoAmericas 2012 Conference, Lima, Peru.
Lu, N & Dong, Y 2015, ‘Closed-form equation for thermal conductivity of unsaturated soils at room temperature’, Journal of Geotechnical and Geoenvironmental Engineering, vol. 141, iss. 6, June 2015.
Mather, A, Netravali, AN & O’ Rourke, TD 1994, ‘Chemical aging effects on the physio-mechanical properties of polyester and polypropylene geotextiles’, Geotextiles and Geomembranes, vol. 13(1994), pp. 591–626.
Meyer, W & Meyer, P 2016, ‘Construction of the first enhanced barrier system in the world’, Civil Engineering, vol. 24, no. 3, April 2016.
Peggs, ID 1985, ‘Why quality control? A graphic case history’, Geotechnical Fabrics Conference ‘85, Cincinnati, Ohio.
Qian, X, Gray, D & Koerner, RM 2004, ‘Estimation of maximum liquid head over landfill barriers’, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, vol. 130, no. 5, pp. 488–497.
Ramsey, B & Wu, Y 2013, ‘Advances in geomembranes: thermal properties and elevated usage temperatures’, GeoAfrica 2013 Conference, Ghana.
Rowe, RK & Abdelaal, FB 2016, ‘Antioxidant depletion in high-density polyethylene (HDPE) geomembrane with hindered amine light stabilizers (HALS) in low pH heap leach environment’, Canadian Geotechnical Journal, vol. 53, no. 10, June, pp. 1612–1627.
Rowe, RK 2016, ‘Recent insights regarding the design and construction of modern MSW landfills’, EurAsia Waste Management Symposium.
Raviteja, KVNS & Munwar Basha, B 2015, ‘Variability associated with interface friction between geomembrane and soil’, 50th Indian Geotechnical Conference, Maharashtra, India.
Shackelford, CD 2014, The ISSMGE Kerry Rowe Lecture: ‘The role of diffusion in environmental geotechnics’, Canadian Geotechnical Journal, vol. 51, no. 11, pp. 1219–1242.
Southen, JM & Rowe, RK 2005, ‘Thermally induced desiccation of geosynthetic clay liners in landfill basal liner applications’, GSP142 Waste Containment and Remediation.
Stott, P & Theron, E 2016, ‘Shortcomings in the estimation of clay fraction by hydrometer’, Journal of the South African Institute of Civil Engineering, vol. 58, no. 2, June, pp. 14–24.
Thielmann, SS, Fox, PJ & Athanassopoulos, C 2016, ‘Shear strength of GMX/GCL composite liner under high normal stress’, Journal of Geotechnical and Geoenvironmental Engineering, vol. 142, iss. 5, May 2016.
United States Society on Dams (USSD) 2011, Materials for Embankment Dams, ISBN 978-1-884575-49-5, Library of Congress Control Number 2009942447, January 2011, USA.
Vidal, D, Queiroz, PI & Santos, CT 2014, ‘Unsaturated flow behaviour of leak-detection systems with geonets’, Proceedings of the 10th International Conference on Geosynthetics, Berlin, Germany.
William, JL 2014, ‘Modelling thermal conductivity dryout curves from soil-water characteristic curves’, Journal of Geotechnical and Geoenvironmental Engineering, vol. 140, iss. 5, May 2014, USA.




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