Environment Water and WastewaterWater Treatment Polymers
Bacteria and viruses, in addition, to colloidal particles and clays range between 1nm and 1ɥm in size. To effectively remove them nano-filtration or ultra-filtration methods must be used. However, through the use of AlumCASTM and a traditional rapid sand filter, ‘membrane-quality’ water is produced, achieving the same results as ultra-filtration. Using a membrane still requires conventional chemical treatment to protect the irreversible membrane permeability loss that will lead to the expensive replacement of the membrane.
In summary it has been demonstrated where AlumCASTM fits in during the wastewater treatment process as a more effective replacement than current flocculants available on the market (Figure 1). The test data compares AlumCASTMresults with wastewater from two plants achieving better particle removal. In addition to the tangible results, time to implement AlumCASTM is drastically shorter than a membrane installation, while ongoing maintenance and operation costs are a fraction to those of membrane technology. It is economically prudent to test AlumCAS before proceeding to membrane implementation.