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ON-SITE PILOT-SCALE DEMONSTRATION OF A LOW-COST BIOLOGICAL PROCESS FOR THE TREATMENT OF HIGH-SULPHATE MINE WATERS
Neale, J.W., M. Gericke, and R. Muhlbauer.
11th ICARD IMWA 2018 Annual Conference, September 10-14, Pretoria, South Africa. IMWA Proceedings (Volume I):164-170(2018)

The study describes the commissioning and operation of a pilot-scale passive biological sulfate reduction (BSR) process to treat mine-impacted water from a South African coal mine. The pilot plant comprises three 7 m reactors with a nominal feed rate of 245 L/d. The substrate comprises woodchips, wood shavings, hay, lucerne, and cow manure. Process performance is evaluated relative to influent pH level, hydraulic residence time, ambient temperature variations, and substrate replenishment rate. Early results demonstrate removal of sufficient sulfate to meet regulatory requirements for discharge or agricultural use. https://www.imwa.info/docs/imwa_2018/IMWA2018_Neale_164.pdf



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