Phoenix, AZ, May 04, 2017 --(PR.com
)-- The by-product of the Bayer process bauxite and alumina refining, Red Mud, is extremely caustic, and has historically been difficult and expensive to treat with traditional technologies. Earth Sustaining Sciences (ESS) has delivered what is understood to be the first known financially and environmentally viable and sustainable red mud waste management process, according to Wayne Sampey, ESS Founder. Earth Sustaining Sciences, in partnership with the Earth Sustaining Sciences Institute, has demonstrated their Symbiotic Aquatic BioReactor (SABR) process ability to immediately ameliorate the red mud issue delivering all-natural neutralization and rehabilitation advancement. www.earthsustainingsciences.com.
Neutralizing Red Mud
“Four-years of work has culminated in a proven solution, consisting of multiple SABR process, single and multiple cell bioreactors delivering effective, minimal risk, practical remediation,” Sampey explained. “Solutions delivering multiple biological manifold reaction patterns have been consistently identified in effective all-natural, localized microbial column systems. Data derived from initial single cell reactor stages was used to construct a multi-stage, multiple-biological manifold system which was continuously fed a 50/50 effluent combination of red mud and caustic processing effluent.”
The SABR process successfully treated the caustic effluent on every occasion reducing the pH from 13+ pH to 6+ pH with the ability to balance at a desired neutral associated level, at a flow rate many times higher than design optimum utilized in a full-scale system; thus, demonstrating robustness of process and resistance to all tested operational and potential accidental flow rate fluctuations and contaminant exacerbations.
The effect of degrees of neutralization and societal gain
“If red mud is systematically, all-naturally neutralized utilizing the ESS SABR process, the commodity no longer remains a long-term risk, but available for secondary utilization as a commercial and environmental asset,” Sampey continued. “A progressive function of the SABR process is enhanced all-natural biological solutions liquors utilization in flushing red mud stockpiles and tailings dams, in a continuing stepped remediation process. The progress of the partially treated effluents through the mass and into secondary SABR systems improves the precipitation of contaminants, continually reducing insitu risk while passively remediating the issues. Note that at 7pH most alkali soluble metals are removed from the effluent however, should some metal species remain in solution the SABR process tuning can drop the pH well into the acid range, bio-stripping metals before returning the liquor to neutral allowing environmentally stable water release.”
“Furthermore, it is important to realize that the effective process requires minimal pumping and no chemical dosing. The process is self-sustaining, low cost, low energy, self-stabilizing and requires minimal servicing. The SABR process also delivers solutions for acid mine drainage and phosphate processing waste including phosphogypsum stockpile remediation,” Sampey concluded.
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