Multotec offers a range of process water treatment solutions for mining and industrial applications with Continuous Ionic Filtration CIF®. CIF® addresses acid mine drainage, treats a range of mining and industrial waters and achieves zero liquid discharge in your application.
CIF® has the unique ability to be used in a range of applications to produce fit-for-purpose water and potentially valuable by-products from "difficult to treat" waters.
By combining CIF® with Reverse Osmosis (to remove dissolved salts) and evaporation / crystallisation technology, CIF® can achieve a zero liquid discharge (ZLD), or 100% water recovery with no water wasted to a brine stream. Zero liquid discharge can also be achieved in certain applications by combining DeSAlx® with precipitation processes and incorporating a brine recycle stream.
CIF® systems can be used on many different types of mine waters to produce fit-for-purpose water and recover valuable metals, using one technology.
For acid mine drainage (AMD), a single CIF® system can extract acid from the water, producing neutral water for discharge. The increase in pH by the system causes several elements to precipitate, providing further water purification. This is possible due to the novel design of CIF®, allowing for in-column precipitation and solids handling.
If the resultant TDS of the product water is too high, the CIF® system can be replaced by a DeSALx® system. CIF®/DeSAlx® can also be used in conjunction with a precipitation step, which incorporates a brine recycle to allow for a ZLD process.