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BacTech Environmental Announces Successful TCPL Testing Results; Confirms Long-Term Environmental Stability of Ferric Arsenate Precipitate as Ecuador Gold Project Advances
TORONTO, ON. - TheNewswire - August 30, 2021 – BacTech Environmental Corporation (OTC:BCCEF) (CSE:BAC) (CNSX:BAC.CN) (“BacTech or the Company”), a commercially
About this update from Bactech Environmental Corp.
[{"type":"text","content":"TORONTO, ON. - TheNewswire - August 30, 2021 –BacTech Environmental Corporation (OTC:BCCEF) (CSE:BAC) (CNSX:BAC.CN) (“BacTech or the Company”), a commercially proven environmental technology company delivering effective and eco-friendly biomining and remediation solutions, is pleased to announce final bioleaching test results showing the successful neutralization of bio-oxidation liquors and TCLP stability testing of ferric arsenate precipitates. Four neutralization tests were performed on two final bio-oxidation liquors from the Ecuadorian commercial bioleach testing program, confirming that an environmentally stable ferric arsenate precipitate could be produced. The neutralization process, where limestone is added and calibrated to raise the pH of the bioleach liquor to facilitate the precipitation of the ferric arsenate, conclusively demonstrated that the precipitate passes the TCLP (Toxicity Characteristic Leaching Procedure) requirements for stability set out by the U.S. Environmental Protection Agency (“EPA”). “These results tick another important box for us, as we formally wrap-up commercial bioleach testing with the information and results needed to press forward and accelerate our feasibility study (FS) and site negotiation efforts,” said Ross Orr, President and CEO of BacTech. “I’ve been actively connecting with all the right people throughout Ponce Enriquez and surrounding regions, and our opportunity space grows with every trip taken. The impact potential of a scalable bioleaching facility is enormous and I’m not leaving anything to chance.” Duplicate neutralization tests were performed on each liquor, using both lime and limestone as the neutralization reagent. Neutralization was conducted in an agitated aerated reactor over a six-hour contact time as per commercial protocol for bio-oxidation plants. Test results showed that the amount of arsenic remaining in solution was 0.5ppm, while the quantity of iron was minimal (between 3ppm to 18ppm due to the presence of residual ferrous iron). This analysis confirms that the neutralization operation will produce a neutral clean water as a by-product that is suitable for recycling in the process. This finding is significant for BacTech as it will reduce the quantity of fresh water required on site. The Toxicity Characteristic Leach Procedure (TCLP) test is a procedure to ev...